/// <summary>
/// Exports an element as a covering of type insulation.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if exported successfully, false otherwise.</returns>
public static bool ExportDuctLining(ExporterIFC exporterIFC, Element element,
GeometryElement geometryElement, ProductWrapper productWrapper)
{
if (element == null || geometryElement == null)
return false;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
IFCAnyHandle representation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, element,
categoryId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(representation))
{
ecData.ClearOpenings();
return false;
}
string guid = GUIDUtil.CreateGUID(element);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string revitObjectType = exporterIFC.GetFamilyName();
string name = NamingUtil.GetNameOverride(element, revitObjectType);
string description = NamingUtil.GetDescriptionOverride(element, null);
string objectType = NamingUtil.GetObjectTypeOverride(element, revitObjectType);
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
string elementTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
IFCAnyHandle ductLining = IFCInstanceExporter.CreateCovering(file, guid,
ownerHistory, name, description, objectType, localPlacement, representation, elementTag, "Wrapping");
ExporterCacheManager.ElementToHandleCache.Register(element.Id, ductLining);
productWrapper.AddElement(element, ductLining, placementSetter.LevelInfo, ecData, true);
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element);
CategoryUtil.CreateMaterialAssociation(exporterIFC, ductLining, matId);
}
}
tr.Commit();
return true;
}
}
/// <summary>
/// Exports an element as building element proxy.
/// </summary>
/// <remarks>
/// This function is called from the Export function, but can also be called directly if you do not
/// want CreateInternalPropertySets to be called.
/// </remarks>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>The handle if created, null otherwise.</returns>
public static IFCAnyHandle ExportBuildingElementProxy(ExporterIFC exporterIFC, Element element,
GeometryElement geometryElement, ProductWrapper productWrapper)
{
if (element == null || geometryElement == null)
return null;
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle buildingElementProxy = null;
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
IFCAnyHandle representation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, element,
categoryId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(representation))
{
ecData.ClearOpenings();
return null;
}
string guid = GUIDUtil.CreateGUID(element);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
string revitObjectType = exporterIFC.GetFamilyName();
string name = NamingUtil.GetNameOverride(element, revitObjectType);
string description = NamingUtil.GetDescriptionOverride(element, null);
string objectType = NamingUtil.GetObjectTypeOverride(element, revitObjectType);
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
string elementTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
buildingElementProxy = IFCInstanceExporter.CreateBuildingElementProxy(file, guid,
ownerHistory, name, description, objectType, localPlacement, representation, elementTag, null);
productWrapper.AddElement(element, buildingElementProxy, placementSetter.LevelInfo, ecData, true);
}
tr.Commit();
}
}
return buildingElementProxy;
}
/// <summary>
/// Exports a gutter element.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportGutter(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(setter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions();
IFCAnyHandle bodyRep = BodyExporter.ExportBody(exporterIFC, element, categoryId, ElementId.InvalidElementId,
geometryElement, bodyExporterOptions, ecData).RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
if (ecData != null)
{
ecData.ClearOpenings();
}
return;
}
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string originalTag = NamingUtil.CreateIFCElementId(element);
// In Revit, we don't have a corresponding type, so we create one for every gutter.
IFCAnyHandle origin = ExporterUtil.CreateAxis2Placement3D(file);
IFCAnyHandle repMap3dHnd = IFCInstanceExporter.CreateRepresentationMap(file, origin, bodyRep);
List <IFCAnyHandle> repMapList = new List <IFCAnyHandle>();
repMapList.Add(repMap3dHnd);
string elementTypeName = NamingUtil.CreateIFCObjectName(exporterIFC, element);
string typeGuid = GUIDUtil.CreateSubElementGUID(element, (int)IFCHostedSweepSubElements.PipeSegmentType);
IFCAnyHandle style = IFCInstanceExporter.CreatePipeSegmentType(file, typeGuid, ownerHistory,
elementTypeName, null, null, null, repMapList, originalTag,
elementTypeName, IFCPipeSegmentType.Gutter);
List <IFCAnyHandle> representationMaps = GeometryUtil.GetRepresentationMaps(style);
IFCAnyHandle mappedItem = ExporterUtil.CreateDefaultMappedItem(file, representationMaps[0]);
ISet <IFCAnyHandle> representations = new HashSet <IFCAnyHandle>();
representations.Add(mappedItem);
IFCAnyHandle bodyMappedItemRep = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC,
element, categoryId, exporterIFC.Get3DContextHandle("Body"), representations);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyMappedItemRep))
{
return;
}
List <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
shapeReps.Add(bodyMappedItemRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
{
shapeReps.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
IFCAnyHandle localPlacementToUse;
ElementId roomId = setter.UpdateRoomRelativeCoordinates(element, out localPlacementToUse);
if (roomId == ElementId.InvalidElementId)
{
localPlacementToUse = ecData.GetLocalPlacement();
}
string guid = GUIDUtil.CreateGUID(element);
string name = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string description = NamingUtil.GetDescriptionOverride(element, null);
string objectType = NamingUtil.GetObjectTypeOverride(element, elementTypeName);
string tag = NamingUtil.GetTagOverride(element, originalTag);
IFCAnyHandle elemHnd = IFCInstanceExporter.CreateFlowSegment(file, guid,
ownerHistory, name, description, objectType, localPlacementToUse, prodRep, tag);
bool containedInSpace = (roomId != ElementId.InvalidElementId);
productWrapper.AddElement(element, elemHnd, setter.LevelInfo, ecData, !containedInSpace);
if (containedInSpace)
{
ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomId, elemHnd);
}
// Associate segment with type.
ExporterCacheManager.TypeRelationsCache.Add(style, elemHnd);
OpeningUtil.CreateOpeningsIfNecessary(elemHnd, element, ecData, null,
exporterIFC, localPlacementToUse, setter, productWrapper);
}
tr.Commit();
}
}
}
/// <summary>
/// Exports a CeilingAndFloor element to IFC.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="floor">The floor element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportCeilingAndFloorElement(ExporterIFC exporterIFC, CeilingAndFloor floorElement, GeometryElement geometryElement,
ProductWrapper productWrapper)
{
if (geometryElement == null)
{
return;
}
// export parts or not
bool exportParts = PartExporter.CanExportParts(floorElement);
if (exportParts && !PartExporter.CanExportElementInPartExport(floorElement, floorElement.LevelId, false))
{
return;
}
string ifcEnumType;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, floorElement, out ifcEnumType);
IFCFile file = exporterIFC.GetFile();
IList <IFCAnyHandle> slabHnds = new List <IFCAnyHandle>();
IList <IFCAnyHandle> brepSlabHnds = new List <IFCAnyHandle>();
IList <IFCAnyHandle> nonBrepSlabHnds = new List <IFCAnyHandle>();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, floorElement))
{
IFCAnyHandle localPlacement = placementSetter.LocalPlacement;
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
bool exportedAsInternalExtrusion = false;
ElementId catId = CategoryUtil.GetSafeCategoryId(floorElement);
IList <IFCAnyHandle> prodReps = new List <IFCAnyHandle>();
IList <ShapeRepresentationType> repTypes = new List <ShapeRepresentationType>();
IList <IList <CurveLoop> > extrusionLoops = new List <IList <CurveLoop> >();
IList <IFCExtrusionCreationData> loopExtraParams = new List <IFCExtrusionCreationData>();
Plane floorPlane = GeometryUtil.CreateDefaultPlane();
IList <IFCAnyHandle> localPlacements = new List <IFCAnyHandle>();
if (!exportParts && (floorElement is Floor))
{
Floor floor = floorElement as Floor;
// First, try to use the ExtrusionAnalyzer for the limited cases it handles - 1 solid, no openings, end clippings only.
// Also limited to cases with line and arc boundaries.
//
SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
if (solids.Count == 1 && meshes.Count == 0)
{
bool completelyClipped;
XYZ floorExtrusionDirection = new XYZ(0, 0, -1);
XYZ modelOrigin = XYZ.Zero;
XYZ floorOrigin = floor.GetVerticalProjectionPoint(modelOrigin, FloorFace.Top);
if (floorOrigin == null)
{
// GetVerticalProjectionPoint may return null if FloorFace.Top is an edited face that doesn't
// go thruough te Revit model orgigin. We'll try the midpoint of the bounding box instead.
BoundingBoxXYZ boundingBox = floorElement.get_BoundingBox(null);
modelOrigin = (boundingBox.Min + boundingBox.Max) / 2.0;
floorOrigin = floor.GetVerticalProjectionPoint(modelOrigin, FloorFace.Top);
}
if (floorOrigin != null)
{
XYZ floorDir = floor.GetNormalAtVerticalProjectionPoint(floorOrigin, FloorFace.Top);
Plane extrusionAnalyzerFloorPlane = new Plane(floorDir, floorOrigin);
HandleAndData floorAndProperties =
ExtrusionExporter.CreateExtrusionWithClippingAndProperties(exporterIFC, floorElement,
catId, solids[0], extrusionAnalyzerFloorPlane, floorExtrusionDirection, null, out completelyClipped);
if (completelyClipped)
{
return;
}
if (floorAndProperties.Handle != null)
{
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(floorAndProperties.Handle);
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
prodReps.Add(prodRep);
repTypes.Add(ShapeRepresentationType.SweptSolid);
if (floorAndProperties.Data != null)
{
loopExtraParams.Add(floorAndProperties.Data);
}
}
}
}
}
// Use internal routine as backup that handles openings.
if (prodReps.Count == 0)
{
exportedAsInternalExtrusion = ExporterIFCUtils.ExportSlabAsExtrusion(exporterIFC, floorElement,
geometryElement, transformSetter, localPlacement, out localPlacements, out prodReps,
out extrusionLoops, out loopExtraParams, floorPlane);
for (int ii = 0; ii < prodReps.Count; ii++)
{
// all are extrusions
repTypes.Add(ShapeRepresentationType.SweptSolid);
}
}
if (prodReps.Count == 0)
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
BodyData bodyData;
IFCAnyHandle prodDefHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
floorElement, catId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd))
{
ecData.ClearOpenings();
return;
}
prodReps.Add(prodDefHnd);
repTypes.Add(bodyData.ShapeRepresentationType);
}
}
// Create the slab from either the extrusion or the BRep information.
string ifcGUID = GUIDUtil.CreateGUID(floorElement);
int numReps = exportParts ? 1 : prodReps.Count;
string entityType = null;
switch (exportType)
{
case IFCExportType.IfcFooting:
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
entityType = IFCValidateEntry.GetValidIFCType <Revit.IFC.Export.Toolkit.IFC4.IFCFootingType>(floorElement, ifcEnumType, null);
}
else
{
entityType = IFCValidateEntry.GetValidIFCType <IFCFootingType>(floorElement, ifcEnumType, null);
}
break;
case IFCExportType.IfcCovering:
entityType = IFCValidateEntry.GetValidIFCType <IFCCoveringType>(floorElement, ifcEnumType, "FLOORING");
break;
case IFCExportType.IfcRamp:
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
entityType = IFCValidateEntry.GetValidIFCType <Revit.IFC.Export.Toolkit.IFC4.IFCRampType>(floorElement, ifcEnumType, null);
}
else
{
entityType = IFCValidateEntry.GetValidIFCType <IFCRampType>(floorElement, ifcEnumType, null);
}
break;
default:
bool isBaseSlab = false;
AnalyticalModel analyticalModel = floorElement.GetAnalyticalModel();
if (analyticalModel != null)
{
AnalyzeAs slabFoundationType = analyticalModel.GetAnalyzeAs();
isBaseSlab = (slabFoundationType == AnalyzeAs.SlabOnGrade) || (slabFoundationType == AnalyzeAs.Mat);
}
entityType = IFCValidateEntry.GetValidIFCType <IFCSlabType>(floorElement, ifcEnumType, isBaseSlab ? "BASESLAB" : "FLOOR");
break;
}
for (int ii = 0; ii < numReps; ii++)
{
string ifcName = NamingUtil.GetNameOverride(floorElement, NamingUtil.GetIFCNamePlusIndex(floorElement, ii == 0 ? -1 : ii + 1));
string ifcDescription = NamingUtil.GetDescriptionOverride(floorElement, null);
string ifcObjectType = NamingUtil.GetObjectTypeOverride(floorElement, exporterIFC.GetFamilyName());
string ifcTag = NamingUtil.GetTagOverride(floorElement, NamingUtil.CreateIFCElementId(floorElement));
string currentGUID = (ii == 0) ? ifcGUID : GUIDUtil.CreateGUID();
IFCAnyHandle localPlacementHnd = exportedAsInternalExtrusion ? localPlacements[ii] : localPlacement;
IFCAnyHandle slabHnd = null;
// TODO: replace with CreateGenericBuildingElement.
switch (exportType)
{
case IFCExportType.IfcFooting:
slabHnd = IFCInstanceExporter.CreateFooting(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
case IFCExportType.IfcCovering:
slabHnd = IFCInstanceExporter.CreateCovering(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
case IFCExportType.IfcRamp:
slabHnd = IFCInstanceExporter.CreateRamp(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
default:
slabHnd = IFCInstanceExporter.CreateSlab(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd))
{
return;
}
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, floorElement, slabHnd, productWrapper, placementSetter, localPlacementHnd, null);
}
slabHnds.Add(slabHnd);
if (!exportParts)
{
if (repTypes[ii] == ShapeRepresentationType.Brep)
{
brepSlabHnds.Add(slabHnd);
}
else
{
nonBrepSlabHnds.Add(slabHnd);
}
}
}
for (int ii = 0; ii < numReps; ii++)
{
IFCExtrusionCreationData loopExtraParam = ii < loopExtraParams.Count ? loopExtraParams[ii] : null;
productWrapper.AddElement(floorElement, slabHnds[ii], placementSetter, loopExtraParam, true);
}
if (exportedAsInternalExtrusion)
{
ExporterIFCUtils.ExportExtrudedSlabOpenings(exporterIFC, floorElement, placementSetter.LevelInfo,
localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper.ToNative());
}
}
if (!exportParts)
{
if (nonBrepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, floorElement, nonBrepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, false);
}
if (brepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, floorElement, brepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, true);
}
}
}
tr.Commit();
return;
}
}
/// <summary>
/// Exports mullion.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="mullion">
/// The mullion object.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="localPlacement">
/// The local placement handle.
/// </param>
/// <param name="setter">
/// The PlacementSetter.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void Export(ExporterIFC exporterIFC, Mullion mullion, GeometryElement geometryElement,
IFCAnyHandle localPlacement, PlacementSetter setter, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (PlacementSetter mullionSetter = PlacementSetter.Create(exporterIFC, mullion))
{
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
IFCAnyHandle mullionPlacement = mullionSetter.LocalPlacement;
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(localPlacement, mullionPlacement);
Transform inverseTrf = relTrf.Inverse;
IFCAnyHandle mullionLocalPlacement = ExporterUtil.CreateLocalPlacement(file, localPlacement,
inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
extraParams.SetLocalPlacement(mullionLocalPlacement);
Transform extrusionLCS = null;
// Add a custom direction for trying to create an extrusion based on the base curve of the mullion, if it is a line and not an arc.
Curve baseCurve = mullion.LocationCurve;
if ((baseCurve != null) && (baseCurve is Line))
{
// We won't use curveBounds and origin yet; just need the axis for now.
IFCRange curveBounds;
XYZ origin, mullionDirection;
GeometryUtil.GetAxisAndRangeFromCurve(baseCurve, out curveBounds, out mullionDirection, out origin);
// approx 1.0/sqrt(2.0)
XYZ planeY = (Math.Abs(mullionDirection.Z) < 0.707) ? XYZ.BasisZ.CrossProduct(mullionDirection) : XYZ.BasisX.CrossProduct(mullionDirection);
planeY.Normalize();
XYZ projDir = mullionDirection.CrossProduct(planeY);
extrusionLCS = Transform.Identity;
extrusionLCS.BasisX = mullionDirection; extrusionLCS.BasisY = planeY; extrusionLCS.BasisZ = projDir; extrusionLCS.Origin = origin;
}
ElementId catId = CategoryUtil.GetSafeCategoryId(mullion);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.ExtrusionLocalCoordinateSystem = extrusionLCS;
IFCAnyHandle repHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, mullion, catId,
geometryElement, bodyExporterOptions, null, extraParams, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
extraParams.ClearOpenings();
return;
}
string elemGUID = GUIDUtil.CreateGUID(mullion);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string elemObjectType = NamingUtil.CreateIFCObjectName(exporterIFC, mullion);
string name = NamingUtil.GetNameOverride(mullion, elemObjectType);
string description = NamingUtil.GetDescriptionOverride(mullion, null);
string objectType = NamingUtil.GetObjectTypeOverride(mullion, elemObjectType);
string elemTag = NamingUtil.GetTagOverride(mullion, NamingUtil.CreateIFCElementId(mullion));
IFCAnyHandle mullionHnd = IFCInstanceExporter.CreateMember(file, elemGUID, ownerHistory, name, description, objectType,
mullionLocalPlacement, repHnd, elemTag, "MULLION");
ExporterCacheManager.HandleToElementCache.Register(mullionHnd, mullion.Id);
productWrapper.AddElement(mullion, mullionHnd, mullionSetter, extraParams, false);
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, mullion);
CategoryUtil.CreateMaterialAssociation(exporterIFC, mullionHnd, matId);
}
}
}
/// <summary>
/// Creates a SweptSolid, Brep, or Surface product definition shape representation, depending on the geoemtry and export version.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="categoryId">The category id.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="bodyExporterOptions">The body exporter options.</param>
/// <param name="extraReps">Extra representations (e.g. Axis, Boundary). May be null.</param>
/// <param name="extrusionCreationData">The extrusion creation data.</param>
/// <param name="allowOffsetTransform">Allows local coordinate system to be placed close to geometry.</param>
/// <returns>The handle.</returns>
/// <remarks>allowOffsetTransform should only be set to true if no other associated geometry is going to be exported. Otherwise,
/// there could be an offset between this geometry and the other, non-transformed, geometry.</remarks>
public static IFCAnyHandle CreateAppropriateProductDefinitionShape(ExporterIFC exporterIFC, Element element, ElementId categoryId,
GeometryElement geometryElement, BodyExporterOptions bodyExporterOptions, IList<IFCAnyHandle> extraReps,
IFCExtrusionCreationData extrusionCreationData, bool allowOffsetTransform)
{
BodyData bodyData;
BodyExporterOptions newBodyExporterOptions = new BodyExporterOptions(bodyExporterOptions);
newBodyExporterOptions.AllowOffsetTransform = allowOffsetTransform;
return CreateAppropriateProductDefinitionShape(exporterIFC, element, categoryId,
geometryElement, newBodyExporterOptions, extraReps, extrusionCreationData, out bodyData);
}
/// <summary>
/// Exports a geometry element to boundary representation.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="exportBoundaryRep">True if to export boundary representation.</param>
/// <param name="exportAsFacetation">True if to export the geometry as facetation.</param>
/// <param name="bodyRep">Body representation.</param>
/// <param name="boundaryRep">Boundary representation.</param>
/// <returns>True if success, false if fail.</returns>
public static bool ExportSurface(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
bool exportBoundaryRep, bool exportAsFacetation, ref IFCAnyHandle bodyRep, ref IFCAnyHandle boundaryRep)
{
if (geometryElement == null)
{
return(false);
}
IFCGeometryInfo ifcGeomInfo = null;
Document doc = element.Document;
Plane plane = GeometryUtil.CreateDefaultPlane();
XYZ projDir = new XYZ(0, 0, 1);
double eps = UnitUtil.ScaleLength(doc.Application.VertexTolerance);
ifcGeomInfo = IFCGeometryInfo.CreateFaceGeometryInfo(exporterIFC, plane, projDir, eps, exportBoundaryRep);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, ifcGeomInfo, geometryElement, XYZ.Zero, true);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle surface;
// Use tessellated geometry for surface in IFC Reference View
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
BodyExporterOptions options = new BodyExporterOptions(false, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
surface = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, element, options, geometryElement);
}
else
{
HashSet <IFCAnyHandle> faceSets = new HashSet <IFCAnyHandle>();
IList <ICollection <IFCAnyHandle> > faceList = ifcGeomInfo.GetFaces();
foreach (ICollection <IFCAnyHandle> faces in faceList)
{
// no faces, don't complain.
if (faces.Count == 0)
{
continue;
}
HashSet <IFCAnyHandle> faceSet = new HashSet <IFCAnyHandle>(faces);
faceSets.Add(IFCInstanceExporter.CreateConnectedFaceSet(file, faceSet));
}
if (faceSets.Count == 0)
{
return(false);
}
surface = IFCInstanceExporter.CreateFaceBasedSurfaceModel(file, faceSets);
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(surface))
{
return(false);
}
BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, doc, surface, BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element));
ISet <IFCAnyHandle> surfaceItems = new HashSet <IFCAnyHandle>();
surfaceItems.Add(surface);
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
bodyRep = RepresentationUtil.CreateSurfaceRep(exporterIFC, element, catId, exporterIFC.Get3DContextHandle("Body"), surfaceItems,
exportAsFacetation, bodyRep);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
return(false);
}
ICollection <IFCAnyHandle> boundaryRepresentations = ifcGeomInfo.GetRepresentations();
if (exportBoundaryRep && boundaryRepresentations.Count > 0)
{
HashSet <IFCAnyHandle> boundaryRepresentationSet = new HashSet <IFCAnyHandle>();
boundaryRepresentationSet.UnionWith(boundaryRepresentations);
boundaryRep = RepresentationUtil.CreateBoundaryRep(exporterIFC, element, catId, exporterIFC.Get3DContextHandle("FootPrint"), boundaryRepresentationSet,
boundaryRep);
}
return(true);
}
/// <summary>
/// Export the individual part (IfcBuildingElementPart).
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="partElement">The part element to export.</param>
/// <param name="geometryElement">The geometry of part.</param>
/// <param name="productWrapper">The ProductWrapper object.</param>
public static void ExportPart(ExporterIFC exporterIFC, Element partElement, ProductWrapper productWrapper,
PlacementSetter placementSetter, IFCAnyHandle originalPlacement, IFCRange range, IFCExtrusionAxes ifcExtrusionAxes,
Element hostElement, ElementId overrideLevelId, bool asBuildingElement)
{
if (!ElementFilteringUtil.IsElementVisible(partElement))
{
return;
}
Part part = partElement as Part;
if (part == null)
{
return;
}
PlacementSetter standalonePlacementSetter = null;
bool standaloneExport = hostElement == null && !asBuildingElement;
ElementId partExportLevel = null;
if (standaloneExport || asBuildingElement)
{
partExportLevel = partElement.LevelId;
}
else
{
if (part.OriginalCategoryId != hostElement.Category.Id)
{
return;
}
partExportLevel = hostElement.LevelId;
}
if (overrideLevelId != null)
{
partExportLevel = overrideLevelId;
}
if (ExporterCacheManager.PartExportedCache.HasExported(partElement.Id, partExportLevel))
{
return;
}
Options options = GeometryUtil.GetIFCExportGeometryOptions();
View ownerView = partElement.Document.GetElement(partElement.OwnerViewId) as View;
if (ownerView != null)
{
options.View = ownerView;
}
GeometryElement geometryElement = partElement.get_Geometry(options);
if (geometryElement == null)
{
return;
}
try
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
IFCAnyHandle partPlacement = null;
if (standaloneExport || asBuildingElement)
{
Transform orientationTrf = Transform.Identity;
standalonePlacementSetter = PlacementSetter.Create(exporterIFC, partElement, null, orientationTrf, partExportLevel);
partPlacement = standalonePlacementSetter.LocalPlacement;
}
else
{
partPlacement = ExporterUtil.CreateLocalPlacement(file, originalPlacement, null);
}
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
SolidMeshGeometryInfo solidMeshInfo;
if (validRange)
{
solidMeshInfo = GeometryUtil.GetSplitClippedSolidMeshGeometry(geometryElement, range);
if (solidMeshInfo.GetSolids().Count == 0 && solidMeshInfo.GetMeshes().Count == 0)
{
return;
}
}
else
{
solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
}
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(partPlacement);
extrusionCreationData.ReuseLocalPlacement = false;
extrusionCreationData.PossibleExtrusionAxes = ifcExtrusionAxes;
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
ElementId catId = CategoryUtil.GetSafeCategoryId(partElement);
ElementId hostCatId = CategoryUtil.GetSafeCategoryId(hostElement);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, solids, meshes,
bodyExporterOptions, extrusionCreationData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, geomlist,
bodyExporterOptions, extrusionCreationData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extrusionCreationData.ClearOpenings();
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(bodyRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string partGUID = GUIDUtil.CreateGUID(partElement);
string partName = NamingUtil.GetNameOverride(partElement, NamingUtil.GetIFCName(partElement));
string partDescription = NamingUtil.GetDescriptionOverride(partElement, null);
string partObjectType = NamingUtil.GetObjectTypeOverride(partElement, NamingUtil.CreateIFCObjectName(exporterIFC, partElement));
string partTag = NamingUtil.GetTagOverride(partElement, NamingUtil.CreateIFCElementId(partElement));
IFCAnyHandle ifcPart = null;
if (!asBuildingElement)
{
ifcPart = IFCInstanceExporter.CreateBuildingElementPart(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partTag);
}
else
{
string ifcEnumType = null;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
string defaultValue = null;
// This replicates old functionality before IFC4 addition, where the default for slab was "FLOOR".
// Really the export layer table should be fixed for this case.
if (string.IsNullOrWhiteSpace(ifcEnumType) && hostCatId == new ElementId(BuiltInCategory.OST_Floors))
{
ifcEnumType = "FLOOR";
}
ifcEnumType = IFCValidateEntry.GetValidIFCType(hostElement, ifcEnumType, defaultValue);
switch (exportType)
{
case IFCExportType.IfcColumnType:
ifcPart = IFCInstanceExporter.CreateColumn(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcCovering:
ifcPart = IFCInstanceExporter.CreateCovering(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcFooting:
ifcPart = IFCInstanceExporter.CreateFooting(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcPile:
ifcPart = IFCInstanceExporter.CreatePile(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType, null);
break;
case IFCExportType.IfcRoof:
ifcPart = IFCInstanceExporter.CreateRoof(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcSlab:
ifcPart = IFCInstanceExporter.CreateSlab(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
case IFCExportType.IfcWall:
ifcPart = IFCInstanceExporter.CreateWall(file, partGUID, ownerHistory, partName, partDescription, partObjectType,
extrusionCreationData.GetLocalPlacement(), prodRep, partTag, ifcEnumType);
break;
default:
ifcPart = IFCInstanceExporter.CreateBuildingElementProxy(file, partGUID, ownerHistory, partName, partDescription,
partObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, partTag, null);
break;
}
}
bool containedInLevel = (standaloneExport || asBuildingElement);
PlacementSetter whichPlacementSetter = containedInLevel ? standalonePlacementSetter : placementSetter;
productWrapper.AddElement(partElement, ifcPart, whichPlacementSetter, extrusionCreationData, containedInLevel);
//Add the exported part to exported cache.
TraceExportedParts(partElement, partExportLevel, standaloneExport || asBuildingElement ? ElementId.InvalidElementId : hostElement.Id);
CategoryUtil.CreateMaterialAssociations(exporterIFC, ifcPart, bodyData.MaterialIds);
transaction.Commit();
}
}
}
finally
{
if (standalonePlacementSetter != null)
{
standalonePlacementSetter.Dispose();
}
}
}
/// <summary>
/// Main implementation to export walls.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="connectedWalls">Information about walls joined to this wall.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="origWrapper">The ProductWrapper.</param>
/// <param name="overrideLevelId">The level id.</param>
/// <param name="range">The range to be exported for the element.</param>
/// <returns>The exported wall handle.</returns>
public static IFCAnyHandle ExportWallBase(ExporterIFC exporterIFC, Element element, IList<IList<IFCConnectedWallData>> connectedWalls,
GeometryElement geometryElement, ProductWrapper origWrapper, ElementId overrideLevelId, IFCRange range)
{
// Check cases where we choose not to export early.
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
Wall wallElement = element as Wall;
FamilyInstance famInstWallElem = element as FamilyInstance;
FaceWall faceWall = element as FaceWall;
bool exportingWallElement = (wallElement != null);
bool exportingFamilyInstance = (famInstWallElem != null);
bool exportingFaceWall = (faceWall != null);
if (!exportingWallElement && !exportingFamilyInstance && !exportingFaceWall)
return null;
if (exportingWallElement && IsWallCompletelyClipped(wallElement, exporterIFC, range))
return null;
IFCRange zSpan = null;
double depth = 0.0;
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, validRange ? overrideLevelId : element.LevelId, validRange))
return null;
IList<Solid> solids = new List<Solid>();
IList<Mesh> meshes = new List<Mesh>();
bool exportingInplaceOpenings = false;
if (!exportParts)
{
if (exportingWallElement || exportingFaceWall)
{
GetSolidsAndMeshes(geometryElement, range, ref solids, ref meshes);
if (solids.Count == 0 && meshes.Count == 0)
return null;
}
else
{
GeometryElement geomElemToUse = GetGeometryFromInplaceWall(famInstWallElem);
if (geomElemToUse != null)
{
exportingInplaceOpenings = true;
}
else
{
exportingInplaceOpenings = false;
geomElemToUse = geometryElement;
}
Transform trf = Transform.Identity;
if (geomElemToUse != geometryElement)
trf = famInstWallElem.GetTransform();
SolidMeshGeometryInfo solidMeshCapsule = GeometryUtil.GetSplitSolidMeshGeometry(geomElemToUse, trf);
solids = solidMeshCapsule.GetSolids();
meshes = solidMeshCapsule.GetMeshes();
}
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (ProductWrapper localWrapper = ProductWrapper.Create(origWrapper))
{
// get bounding box height so that we can subtract out pieces properly.
// only for Wall, not FamilyInstance.
if (exportingWallElement && geometryElement != null)
{
// There is a problem in the API where some walls with vertical structures are overreporting their height,
// making it appear as if there are clipping problems on export. We will work around this by getting the
// height directly from the solid(s).
if (solids.Count > 0 && meshes.Count == 0)
{
zSpan = GetBoundingBoxOfSolids(solids);
}
else
{
BoundingBoxXYZ boundingBox = wallElement.get_BoundingBox(null);
if (boundingBox != null)
zSpan = GetBoundingBoxZRange(boundingBox);
}
if (zSpan == null)
return null;
// if we have a top clipping plane, modify depth accordingly.
double bottomHeight = validRange ? Math.Max(zSpan.Start, range.Start) : zSpan.Start;
double topHeight = validRange ? Math.Min(zSpan.End, range.End) : zSpan.End;
depth = topHeight - bottomHeight;
if (MathUtil.IsAlmostZero(depth))
return null;
depth = UnitUtil.ScaleLength(depth);
}
else
{
zSpan = new IFCRange();
}
Document doc = element.Document;
double baseWallElevation = 0.0;
ElementId baseLevelId = PlacementSetter.GetBaseLevelIdForElement(element);
if (baseLevelId != ElementId.InvalidElementId)
{
Element baseLevel = doc.GetElement(baseLevelId);
if (baseLevel is Level)
baseWallElevation = (baseLevel as Level).Elevation;
}
IFCAnyHandle axisRep = null;
IFCAnyHandle bodyRep = null;
bool exportingAxis = false;
Curve trimmedCurve = null;
bool exportedAsWallWithAxis = false;
bool exportedBodyDirectly = false;
Curve centerCurve = GetWallAxis(wallElement);
XYZ localXDir = new XYZ(1, 0, 0);
XYZ localYDir = new XYZ(0, 1, 0);
XYZ localZDir = new XYZ(0, 0, 1);
XYZ localOrig = new XYZ(0, 0, 0);
double eps = MathUtil.Eps();
if (centerCurve != null)
{
Curve baseCurve = GetWallAxisAtBaseHeight(wallElement);
trimmedCurve = GetWallTrimmedCurve(wallElement, baseCurve);
IFCRange curveBounds;
XYZ oldOrig;
GeometryUtil.GetAxisAndRangeFromCurve(trimmedCurve, out curveBounds, out localXDir, out oldOrig);
// Move the curve to the bottom of the geometry or the bottom of the range, which is higher.
if (baseCurve != null)
localOrig = new XYZ(oldOrig.X, oldOrig.Y, validRange ? Math.Max(range.Start, zSpan.Start) : zSpan.Start);
else
localOrig = oldOrig;
double dist = localOrig[2] - oldOrig[2];
if (!MathUtil.IsAlmostZero(dist))
{
XYZ moveVec = new XYZ(0, 0, dist);
trimmedCurve = GeometryUtil.MoveCurve(trimmedCurve, moveVec);
}
localYDir = localZDir.CrossProduct(localXDir);
// ensure that X and Z axes are orthogonal.
double xzDot = localZDir.DotProduct(localXDir);
if (!MathUtil.IsAlmostZero(xzDot))
localXDir = localYDir.CrossProduct(localZDir);
}
else
{
BoundingBoxXYZ boundingBox = element.get_BoundingBox(null);
if (boundingBox != null)
{
XYZ bBoxMin = boundingBox.Min;
XYZ bBoxMax = boundingBox.Max;
if (validRange)
localOrig = new XYZ(bBoxMin.X, bBoxMin.Y, range.Start);
else
localOrig = boundingBox.Min;
XYZ localXDirMax = null;
Transform bTrf = boundingBox.Transform;
XYZ localXDirMax1 = new XYZ(bBoxMax.X, localOrig.Y, localOrig.Z);
localXDirMax1 = bTrf.OfPoint(localXDirMax1);
XYZ localXDirMax2 = new XYZ(localOrig.X, bBoxMax.Y, localOrig.Z);
localXDirMax2 = bTrf.OfPoint(localXDirMax2);
if (localXDirMax1.DistanceTo(localOrig) >= localXDirMax2.DistanceTo(localOrig))
localXDirMax = localXDirMax1;
else
localXDirMax = localXDirMax2;
localXDir = localXDirMax.Subtract(localOrig);
localXDir = localXDir.Normalize();
localYDir = localZDir.CrossProduct(localXDir);
// ensure that X and Z axes are orthogonal.
double xzDot = localZDir.DotProduct(localXDir);
if (!MathUtil.IsAlmostZero(xzDot))
localXDir = localYDir.CrossProduct(localZDir);
}
}
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
Transform orientationTrf = Transform.Identity;
orientationTrf.BasisX = localXDir;
orientationTrf.BasisY = localYDir;
orientationTrf.BasisZ = localZDir;
orientationTrf.Origin = localOrig;
double scaledFootprintArea = 0;
double scaledLength = 0;
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, orientationTrf, overrideLevelId))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
// The local coordinate system of the wall as defined by IFC for IfcWallStandardCase.
Plane wallLCS = new Plane(localXDir, localYDir, localOrig); // project curve to XY plane.
XYZ projDir = XYZ.BasisZ;
// two representations: axis, body.
{
if (!exportParts && (centerCurve != null) && (GeometryUtil.CurveIsLineOrArc(centerCurve)))
{
exportingAxis = true;
string identifierOpt = "Axis"; // IFC2x2 convention
string representationTypeOpt = "Curve2D"; // IFC2x2 convention
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, wallLCS, projDir, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, trimmedCurve, XYZ.Zero, true);
IList<IFCAnyHandle> axisItems = info.GetCurves();
if (axisItems.Count == 0)
{
exportingAxis = false;
}
else
{
HashSet<IFCAnyHandle> axisItemSet = new HashSet<IFCAnyHandle>();
foreach (IFCAnyHandle axisItem in axisItems)
axisItemSet.Add(axisItem);
IFCAnyHandle contextOfItemsAxis = exporterIFC.Get3DContextHandle("Axis");
axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, contextOfItemsAxis,
identifierOpt, representationTypeOpt, axisItemSet);
}
}
}
IList<IFCExtrusionData> cutPairOpenings = new List<IFCExtrusionData>();
if (!exportParts && exportingWallElement && exportingAxis && trimmedCurve != null)
{
bool isCompletelyClipped;
bodyRep = TryToCreateAsExtrusion(exporterIFC, wallElement, connectedWalls, solids, meshes, baseWallElevation,
catId, centerCurve, trimmedCurve, wallLCS, depth, zSpan, range, setter,
out cutPairOpenings, out isCompletelyClipped, out scaledFootprintArea, out scaledLength);
if (isCompletelyClipped)
return null;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
exportedAsWallWithAxis = true;
}
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
BodyData bodyData = null;
if (!exportedAsWallWithAxis)
{
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ; // only allow vertical extrusions!
extraParams.AreInnerRegionsOpenings = true;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
// Swept solids are not natively exported as part of CV2.0.
// We have removed the UI toggle for this, so that it is by default false, but keep for possible future use.
if (ExporterCacheManager.ExportOptionsCache.ExportAdvancedSweptSolids)
bodyExporterOptions.TryToExportAsSweptSolid = true;
ElementId overrideMaterialId = ElementId.InvalidElementId;
if (exportingWallElement)
overrideMaterialId = HostObjectExporter.GetFirstLayerMaterialId(wallElement);
if (!exportParts)
{
if ((solids.Count > 0) || (meshes.Count > 0))
{
bodyRep = BodyExporter.ExportBody(exporterIFC, element, catId, overrideMaterialId,
solids, meshes, bodyExporterOptions, extraParams).RepresentationHnd;
}
else
{
IList<GeometryObject> geomElemList = new List<GeometryObject>();
geomElemList.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, overrideMaterialId,
geomElemList, bodyExporterOptions, extraParams);
bodyRep = bodyData.RepresentationHnd;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extraParams.ClearOpenings();
return null;
}
}
// We will be able to export as a IfcWallStandardCase as long as we have an axis curve.
XYZ extrDirUsed = XYZ.Zero;
if (extraParams.HasExtrusionDirection)
{
extrDirUsed = extraParams.ExtrusionDirection;
if (MathUtil.IsAlmostEqual(Math.Abs(extrDirUsed[2]), 1.0))
{
if ((solids.Count == 1) && (meshes.Count == 0))
exportedAsWallWithAxis = exportingAxis;
exportedBodyDirectly = true;
}
}
}
IFCAnyHandle prodRep = null;
if (!exportParts)
{
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
if (exportingAxis)
representations.Add(axisRep);
representations.Add(bodyRep);
IFCAnyHandle boundingBoxRep = null;
if ((solids.Count > 0) || (meshes.Count > 0))
boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, solids, meshes, Transform.Identity);
else
boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
representations.Add(boundingBoxRep);
prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
}
ElementId matId = ElementId.InvalidElementId;
string objectType = NamingUtil.CreateIFCObjectName(exporterIFC, element);
IFCAnyHandle wallHnd = null;
string elemGUID = null;
int subElementIndex = ExporterStateManager.GetCurrentRangeIndex();
if (subElementIndex == 0)
elemGUID = GUIDUtil.CreateGUID(element);
else if (subElementIndex <= ExporterStateManager.RangeIndexSetter.GetMaxStableGUIDs())
elemGUID = GUIDUtil.CreateSubElementGUID(element, subElementIndex + (int)IFCGenericSubElements.SplitInstanceStart - 1);
else
elemGUID = GUIDUtil.CreateGUID();
string elemName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string elemDesc = NamingUtil.GetDescriptionOverride(element, null);
string elemObjectType = NamingUtil.GetObjectTypeOverride(element, objectType);
string elemTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string ifcType = IFCValidateEntry.GetValidIFCType(element, null);
// For Foundation and Retaining walls, allow exporting as IfcFooting instead.
bool exportAsFooting = false;
if (exportingWallElement)
{
WallType wallType = wallElement.WallType;
if (wallType != null)
{
int wallFunction;
if (ParameterUtil.GetIntValueFromElement(wallType, BuiltInParameter.FUNCTION_PARAM, out wallFunction) != null)
{
if (wallFunction == (int)WallFunction.Retaining || wallFunction == (int)WallFunction.Foundation)
{
// In this case, allow potential to export foundation and retaining walls as footing.
string enumTypeValue = null;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, wallElement, out enumTypeValue);
if (exportType == IFCExportType.IfcFooting)
exportAsFooting = true;
}
}
}
}
if (exportedAsWallWithAxis)
{
if (exportAsFooting)
{
wallHnd = IFCInstanceExporter.CreateFooting(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemTag, ifcType);
}
else
{
bool exportAsWall = exportParts;
if (!exportAsWall)
{
// (For Reference View export) If the representation returned earlier is of type Tessellation, create IfcWall instead.
foreach (IFCAnyHandle pRep in IFCAnyHandleUtil.GetRepresentations(prodRep))
{
if (String.Compare(IFCAnyHandleUtil.GetRepresentationType(pRep), "Tessellation") == 0)
{
exportAsWall = true;
break;
}
}
}
if (exportAsWall)
{
wallHnd = IFCInstanceExporter.CreateWall(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, null, elemTag, ifcType);
}
else
{
wallHnd = IFCInstanceExporter.CreateWallStandardCase(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, prodRep, elemTag, ifcType);
}
}
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, element, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
localWrapper.AddElement(element, wallHnd, setter, extraParams, true);
if (!exportParts)
{
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, cutPairOpenings, null,
exporterIFC, localPlacement, setter, localWrapper);
if (exportedBodyDirectly)
{
Transform offsetTransform = (bodyData != null) ? bodyData.OffsetTransform : Transform.Identity;
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, extraParams, offsetTransform,
exporterIFC, localPlacement, setter, localWrapper);
}
else
{
double scaledWidth = UnitUtil.ScaleLength(wallElement.Width);
OpeningUtil.AddOpeningsToElement(exporterIFC, wallHnd, wallElement, null, scaledWidth, range, setter, localPlacement, localWrapper);
}
}
// export Base Quantities
if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
{
scaledFootprintArea = MathUtil.AreaIsAlmostZero(scaledFootprintArea) ? extraParams.ScaledArea : scaledFootprintArea;
scaledLength = MathUtil.IsAlmostZero(scaledLength) ? extraParams.ScaledLength : scaledLength;
PropertyUtil.CreateWallBaseQuantities(exporterIFC, wallElement, solids, meshes, wallHnd, scaledLength, depth, scaledFootprintArea);
}
}
else
{
if (exportAsFooting)
{
wallHnd = IFCInstanceExporter.CreateFooting(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemTag, ifcType);
}
else
{
wallHnd = IFCInstanceExporter.CreateWall(file, elemGUID, ownerHistory, elemName, elemDesc, elemObjectType,
localPlacement, exportParts ? null : prodRep, elemTag, ifcType);
}
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, element, wallHnd, localWrapper, setter, localPlacement, overrideLevelId);
localWrapper.AddElement(element, wallHnd, setter, extraParams, true);
if (!exportParts)
{
// Only export one material for 2x2; for future versions, export the whole list.
if (ExporterCacheManager.ExportOptionsCache.ExportAs2x2 || exportingFamilyInstance)
{
matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(solids, meshes, element);
if (matId != ElementId.InvalidElementId)
CategoryUtil.CreateMaterialAssociation(exporterIFC, wallHnd, matId);
}
if (exportingInplaceOpenings)
{
OpeningUtil.AddOpeningsToElement(exporterIFC, wallHnd, famInstWallElem, null, 0.0, range, setter, localPlacement, localWrapper);
}
if (exportedBodyDirectly)
{
Transform offsetTransform = (bodyData != null) ? bodyData.OffsetTransform : Transform.Identity;
OpeningUtil.CreateOpeningsIfNecessary(wallHnd, element, extraParams, offsetTransform,
exporterIFC, localPlacement, setter, localWrapper);
}
}
}
ElementId wallLevelId = (validRange) ? setter.LevelId : ElementId.InvalidElementId;
if ((exportingWallElement || exportingFaceWall) && !exportParts)
{
HostObject hostObject = null;
if (exportingWallElement)
hostObject = wallElement;
else
hostObject = faceWall;
if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2 || exportedAsWallWithAxis)
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, localWrapper.GetAnElement(),
geometryElement, localWrapper, wallLevelId, Toolkit.IFCLayerSetDirection.Axis2, !exportedAsWallWithAxis);
}
ExportWallType(exporterIFC, localWrapper, wallHnd, element, matId, exportedAsWallWithAxis, exportAsFooting);
SpaceBoundingElementUtil.RegisterSpaceBoundingElementHandle(exporterIFC, wallHnd, element.Id, wallLevelId);
tr.Commit();
return wallHnd;
}
}
}
}
}
/// <summary>
/// Exports a beam to IFC beam.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="element">
/// The element to be exported.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportBeam(ExporterIFC exporterIFC,
Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
{
if (geometryElement == null)
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
LocationCurve locCurve = element.Location as LocationCurve;
Transform orientTrf = Transform.Identity;
bool canExportAxis = (locCurve != null);
IFCAnyHandle axisRep = null;
XYZ beamDirection = null;
XYZ projDir = null;
Curve curve = null;
Plane plane = null;
if (canExportAxis)
{
curve = locCurve.Curve;
if (curve is Line)
{
Line line = curve as Line;
XYZ planeY, planeOrig;
planeOrig = line.GetEndPoint(0);
beamDirection = line.Direction;
if (Math.Abs(beamDirection.Z) < 0.707) // approx 1.0/sqrt(2.0)
{
planeY = XYZ.BasisZ.CrossProduct(beamDirection);
}
else
{
planeY = XYZ.BasisX.CrossProduct(beamDirection);
}
planeY = planeY.Normalize();
projDir = beamDirection.CrossProduct(planeY);
plane = new Plane(beamDirection, planeY, planeOrig);
orientTrf.BasisX = beamDirection; orientTrf.BasisY = planeY; orientTrf.BasisZ = projDir; orientTrf.Origin = planeOrig;
}
else if (curve is Arc)
{
XYZ yDir, center;
Arc arc = curve as Arc;
beamDirection = arc.XDirection; yDir = arc.YDirection; projDir = arc.Normal; center = arc.Center;
plane = new Plane(beamDirection, yDir, center);
orientTrf.BasisX = beamDirection; orientTrf.BasisY = yDir; orientTrf.BasisZ = projDir; orientTrf.Origin = center;
}
else
{
canExportAxis = false;
}
}
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, canExportAxis ? orientTrf : null))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(localPlacement);
if (canExportAxis && (orientTrf.BasisX != null))
{
extrusionCreationData.CustomAxis = beamDirection;
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryCustom;
}
else
{
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryXY;
}
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
// The representation handle generated from one of the methods below.
IFCAnyHandle repHnd = null;
// The list of materials in the solids or meshes.
ICollection <ElementId> materialIds = new HashSet <ElementId>();
// There may be an offset to make the local coordinate system
// be near the origin. This offset will be used to move the axis to the new LCS.
Transform offsetTransform = null;
// If we have a beam with a Linear location line that only has one solid geometry,
// we will try to use the ExtrusionAnalyzer to generate an extrusion with 0 or more clippings.
// This code is currently limited in that it will not process beams with openings, so we
// use other methods below if this one fails.
if (solids.Count == 1 && meshes.Count == 0 && (canExportAxis && (curve is Line)))
{
bool completelyClipped;
beamDirection = orientTrf.BasisX;
Plane beamExtrusionPlane = new Plane(orientTrf.BasisY, orientTrf.BasisZ, orientTrf.Origin);
repHnd = ExtrusionExporter.CreateExtrusionWithClipping(exporterIFC, element,
catId, solids[0], beamExtrusionPlane, beamDirection, null, out completelyClipped);
if (completelyClipped)
{
return;
}
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
// This is used by the BeamSlopeCalculator. This should probably be generated automatically by
// CreateExtrusionWithClipping.
IFCExtrusionBasis bestAxis = (Math.Abs(beamDirection[0]) > Math.Abs(beamDirection[1])) ?
IFCExtrusionBasis.BasisX : IFCExtrusionBasis.BasisY;
extrusionCreationData.Slope = GeometryUtil.GetSimpleExtrusionSlope(beamDirection, bestAxis);
ElementId materialId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(solids[0], exporterIFC, element);
if (materialId != ElementId.InvalidElementId)
{
materialIds.Add(materialId);
}
}
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId,
solids, meshes, bodyExporterOptions, extrusionCreationData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId,
geomlist, bodyExporterOptions, extrusionCreationData);
}
repHnd = bodyData.RepresentationHnd;
materialIds = bodyData.MaterialIds;
offsetTransform = bodyData.OffsetTransform;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
extrusionCreationData.ClearOpenings();
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
if (canExportAxis)
{
XYZ curveOffset = new XYZ(0, 0, 0);
if (offsetTransform != null)
{
curveOffset = -UnitUtil.UnscaleLength(offsetTransform.Origin);
}
else
{
// Note that we do not have to have any scaling adjustment here, since the curve origin is in the
// same internal coordinate system as the curve.
curveOffset = -plane.Origin;
}
Plane offsetPlane = new Plane(plane.XVec, plane.YVec, XYZ.Zero);
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, offsetPlane, projDir, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, curve, curveOffset, true);
IList <IFCAnyHandle> axis_items = info.GetCurves();
if (axis_items.Count > 0)
{
string identifierOpt = "Axis"; // this is by IFC2x2 convention, not temporary
string representationTypeOpt = "Curve2D"; // this is by IFC2x2 convention, not temporary
axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, exporterIFC.Get3DContextHandle(identifierOpt),
identifierOpt, representationTypeOpt, axis_items);
representations.Add(axisRep);
}
}
representations.Add(repHnd);
Transform boundingBoxTrf = (offsetTransform == null) ? Transform.Identity : offsetTransform.Inverse;
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, boundingBoxTrf);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, NamingUtil.CreateIFCObjectName(exporterIFC, element));
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string preDefinedType = "BEAM"; // Default predefined type for Beam
preDefinedType = IFCValidateEntry.GetValidIFCType(element, preDefinedType);
IFCAnyHandle beam = IFCInstanceExporter.CreateBeam(file, instanceGUID, exporterIFC.GetOwnerHistoryHandle(),
instanceName, instanceDescription, instanceObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, instanceTag, preDefinedType);
productWrapper.AddElement(element, beam, setter, extrusionCreationData, true);
OpeningUtil.CreateOpeningsIfNecessary(beam, element, extrusionCreationData, offsetTransform, exporterIFC,
extrusionCreationData.GetLocalPlacement(), setter, productWrapper);
FamilyTypeInfo typeInfo = new FamilyTypeInfo();
typeInfo.ScaledDepth = extrusionCreationData.ScaledLength;
typeInfo.ScaledArea = extrusionCreationData.ScaledArea;
typeInfo.ScaledInnerPerimeter = extrusionCreationData.ScaledInnerPerimeter;
typeInfo.ScaledOuterPerimeter = extrusionCreationData.ScaledOuterPerimeter;
PropertyUtil.CreateBeamColumnBaseQuantities(exporterIFC, beam, element, typeInfo, null);
if (materialIds.Count != 0)
{
CategoryUtil.CreateMaterialAssociations(exporterIFC, beam, materialIds);
}
// Register the beam's IFC handle for later use by truss and beam system export.
ExporterCacheManager.ElementToHandleCache.Register(element.Id, beam);
}
}
transaction.Commit();
}
}
/// <summary>
/// Returns a handle for creation of an AdvancedBrep with AdvancedFace and assigns it to the file
/// </summary>
/// <param name="exporterIFC">exporter IFC</param>
/// <param name="element">the element</param>
/// <param name="options">exporter option</param>
/// <param name="geomObject">the geometry object</param>
/// <returns>the handle</returns>
public static IFCAnyHandle ExportBodyAsAdvancedBrep(ExporterIFC exporterIFC, Element element, BodyExporterOptions options,
GeometryObject geomObject)
{
IFCFile file = exporterIFC.GetFile();
Document document = element.Document;
// IFCFuzzyXYZ will be used in this routine to compare 2 XYZs, we consider two points are the same if their distance
// is within this tolerance
IFCFuzzyXYZ.IFCFuzzyXYZEpsilon = document.Application.VertexTolerance;
IFCAnyHandle advancedBrep = null;
using (IFCTransaction tr = new IFCTransaction(file))
{
try
{
if (!(geomObject is Solid))
{
return null;
}
HashSet<IFCAnyHandle> cfsFaces = new HashSet<IFCAnyHandle>();
Solid geomSolid = geomObject as Solid;
FaceArray faces = geomSolid.Faces;
// Check for supported curve and face types before creating an advanced BRep.
IList<KeyValuePair<Edge, Curve>> edgesAndCurves = new List<KeyValuePair<Edge, Curve>>();
foreach (Edge edge in geomSolid.Edges)
{
Curve currCurve = edge.AsCurve();
if (currCurve == null)
return null;
bool isValidCurve = !(currCurve is CylindricalHelix);
if (!isValidCurve)
return null;
// based on the definition of IfcAdvancedBrep in IFC 4 specification, an IfcAdvancedBrep must contain a closed shell, so we
// have a test to reject all open shells here.
// we check that geomSolid is an actual solid and not an open shell by verifying that each edge is shared by exactly 2 faces.
for (int ii = 0; ii < 2; ii++)
{
if (edge.GetFace(ii) == null)
return null;
}
edgesAndCurves.Add(new KeyValuePair<Edge, Curve>(edge, currCurve));
}
foreach (Face face in geomSolid.Faces)
{
bool isValidFace = (face is PlanarFace) || (face is CylindricalFace) || (face is RuledFace) || (face is HermiteFace) || (face is RevolvedFace) || (face is ConicalFace);
if (!isValidFace)
{
return null;
}
}
Dictionary<Face, IList<Edge>> faceToEdges = new Dictionary<Face, IList<Edge>>();
Dictionary<Edge, IFCAnyHandle> edgeToIfcEdgeCurve = new Dictionary<Edge, IFCAnyHandle>();
// A map of already created IfcCartesianPoints, to avoid duplication. This is used for vertex points and other geometry in the BRep.
// We do not share IfcCartesianPoints across BReps.
IDictionary<IFCFuzzyXYZ, IFCAnyHandle> cartesianPoints = new SortedDictionary<IFCFuzzyXYZ, IFCAnyHandle>();
// A map of already created IfcVertexPoints, to avoid duplication.
IDictionary<IFCFuzzyXYZ, IFCAnyHandle> vertices = new SortedDictionary<IFCFuzzyXYZ, IFCAnyHandle>();
// First phase: get all the vertices:
foreach (KeyValuePair<Edge, Curve> edgeAndCurve in edgesAndCurves)
{
Edge edge = edgeAndCurve.Key;
Curve currCurve = edgeAndCurve.Value;
XYZ startPoint = currCurve.GetEndPoint(0);
XYZ endPoint = currCurve.GetEndPoint(1);
IFCFuzzyXYZ fuzzyStartPoint = new IFCFuzzyXYZ(startPoint);
IFCFuzzyXYZ fuzzyEndPoint = new IFCFuzzyXYZ(endPoint);
IFCAnyHandle edgeStart = null;
IFCAnyHandle edgeEnd = null;
if (vertices.ContainsKey(fuzzyStartPoint))
{
edgeStart = vertices[fuzzyStartPoint];
}
else
{
IFCAnyHandle edgeStartCP = GeometryUtil.XYZtoIfcCartesianPoint(exporterIFC, currCurve.GetEndPoint(0), cartesianPoints);
edgeStart = IFCInstanceExporter.CreateVertexPoint(file, edgeStartCP);
vertices.Add(fuzzyStartPoint, edgeStart);
}
if (vertices.ContainsKey(fuzzyEndPoint))
{
edgeEnd = vertices[fuzzyEndPoint];
}
else
{
IFCAnyHandle edgeEndCP = GeometryUtil.XYZtoIfcCartesianPoint(exporterIFC, currCurve.GetEndPoint(1), cartesianPoints);
edgeEnd = IFCInstanceExporter.CreateVertexPoint(file, edgeEndCP);
vertices.Add(fuzzyEndPoint, edgeEnd);
}
IFCAnyHandle edgeCurve = CreateEdgeCurveFromCurve(file, exporterIFC, currCurve, edgeStart, edgeEnd, true, cartesianPoints);
edgeToIfcEdgeCurve.Add(edge, edgeCurve);
Face face = null;
for (int ii = 0; ii < 2; ii++)
{
face = edge.GetFace(ii);
if (!faceToEdges.ContainsKey(face))
{
faceToEdges.Add(face, new List<Edge>());
}
IList<Edge> edges = faceToEdges[face];
edges.Add(edge);
}
}
// Second phase: create IfcFaceOuterBound, IfcFaceInnerBound, IfcAdvancedFace and IfcAdvancedBrep
foreach (Face face in geomSolid.Faces)
{
// List of created IfcEdgeLoops of this face
IList<IFCAnyHandle> edgeLoopList = new List<IFCAnyHandle>();
// List of created IfcOrientedEdge in one loop
IList<IFCAnyHandle> orientedEdgeList = new List<IFCAnyHandle>();
IFCAnyHandle surface = null;
IList<HashSet<IFCAnyHandle>> boundsCollection = new List<HashSet<IFCAnyHandle>>();
// calculate sameSense by getting a point on the surface and compute the normal of the face and the surface at that point
// if these two vectors agree, then sameSense is true.
// The point we use to test will be the start point of the first edge in the first loop of this face
bool sameSenseAF = true;
EdgeArrayArray faceEdgeLoops = face.EdgeLoops;
if (faceEdgeLoops == null || faceEdgeLoops.Size == 0)
{
return null;
}
EdgeArray firstEdgeLoop = faceEdgeLoops.get_Item(0);
if (firstEdgeLoop == null)
{
return null;
}
Edge firstEdge = firstEdgeLoop.get_Item(0);
UV pointToTest = firstEdge.EvaluateOnFace(0, face);
// Compute the normal of the FACE at pointToTest
XYZ faceNormal = face.ComputeNormal(pointToTest);
// Compute the normal of the SURFACE at pointToTest
Transform testPointDerivatives = face.ComputeDerivatives(pointToTest);
XYZ surfaceNormal = testPointDerivatives.BasisZ;
if (!faceNormal.IsAlmostEqualTo(surfaceNormal))
{
sameSenseAF = false;
}
Dictionary<EdgeArray, IList<EdgeArray>> sortedEdgeLoop = GeometryUtil.SortEdgeLoop(faceEdgeLoops, face);
// check that we get back the same number of edgeloop
int numberOfSortedEdgeLoop = 0;
foreach (KeyValuePair<EdgeArray, IList<EdgeArray>> pair in sortedEdgeLoop)
{
numberOfSortedEdgeLoop += 1 + pair.Value.Count;
}
if (numberOfSortedEdgeLoop != face.EdgeLoops.Size)
{
return null;
}
foreach (KeyValuePair<EdgeArray, IList<EdgeArray>> pair in sortedEdgeLoop)
{
if (pair.Key == null || pair.Value == null)
return null;
HashSet<IFCAnyHandle> bounds = new HashSet<IFCAnyHandle>();
// Append the outerloop at the beginning of the list of inner loop
pair.Value.Insert(0, pair.Key);
// Process each inner loop
foreach (EdgeArray edgeArray in pair.Value)
{
// Map each edge in this loop back to its corresponding edge curve and then calculate its orientation to create IfcOrientedEdge
foreach (Edge edge in edgeArray)
{
// The reason why edgeToIfcEdgeCurve cannot find edge is that either we haven't created the IfcOrientedEdge
// corresponding to that edge OR we already have but the dictionary cannot find the edge as its key because
// Face.EdgeLoop and geomSolid.Edges return different pointers for the same edge. This can be avoided if
// Equals() method is implemented for Edge
if (!edgeToIfcEdgeCurve.ContainsKey(edge))
return null;
IFCAnyHandle edgeCurve = edgeToIfcEdgeCurve[edge];
Curve currCurve = edge.AsCurve();
Curve curveInCurrentFace = edge.AsCurveFollowingFace(face);
if (currCurve == null || curveInCurrentFace == null)
return null;
// if the curve length is 0, ignore it.
if (MathUtil.IsAlmostZero(currCurve.ApproximateLength))
continue;
// if the curve is unbound, it means that the solid may be corrupted, we shouldn't process it anymore
if (!currCurve.IsBound)
return null;
bool orientation = currCurve.GetEndPoint(0).IsAlmostEqualTo(curveInCurrentFace.GetEndPoint(0));
IFCAnyHandle orientedEdge = IFCInstanceExporter.CreateOrientedEdge(file, edgeCurve, orientation);
orientedEdgeList.Add(orientedEdge);
}
IFCAnyHandle edgeLoop = IFCInstanceExporter.CreateEdgeLoop(file, orientedEdgeList);
edgeLoopList.Add(edgeLoop);
IFCAnyHandle faceBound = null;
// EdgeLoopList has only 1 element indicates that this is the outer loop
if (edgeLoopList.Count == 1)
faceBound = IFCInstanceExporter.CreateFaceOuterBound(file, edgeLoop, true);
else
faceBound = IFCInstanceExporter.CreateFaceBound(file, edgeLoop, false);
bounds.Add(faceBound);
// After finishing processing one loop, clear orientedEdgeList
orientedEdgeList.Clear();
}
boundsCollection.Add(bounds);
}
edgeLoopList.Clear();
// TODO: create a new face processing method to factor out this code
// process the face now
if (face is PlanarFace)
{
PlanarFace plFace = face as PlanarFace;
IFCAnyHandle location = GeometryUtil.XYZtoIfcCartesianPoint(exporterIFC, plFace.Origin, cartesianPoints);
// Since there is no easy way to get the surface normal, we will calculate the face's normal and negate it if we know
// the surface normal doesn't agree with the face normal based on the sameSense attribute that we calculate above
XYZ zdir = plFace.FaceNormal;
if (!sameSenseAF)
zdir = zdir.Negate();
XYZ xdir = plFace.XVector;
IFCAnyHandle position = CreatePositionForFace(exporterIFC, location, zdir, xdir);
surface = IFCInstanceExporter.CreatePlane(file, position);
}
else if (face is CylindricalFace)
{
CylindricalFace cylFace = face as CylindricalFace;
IFCAnyHandle location = GeometryUtil.XYZtoIfcCartesianPoint(exporterIFC, cylFace.Origin, cartesianPoints);
// get radius-x and radius-y and the position of the origin
XYZ rad = UnitUtil.ScaleLength(cylFace.get_Radius(0));
double radius = rad.GetLength();
XYZ zdir = cylFace.Axis;
XYZ xdir = rad.Normalize();
IFCAnyHandle position = CreatePositionForFace(exporterIFC, location, zdir, xdir);
surface = IFCInstanceExporter.CreateCylindricalSurface(file, position, radius);
}
else if (face is ConicalFace)
{
ConicalFace conicalFace = face as ConicalFace;
IFCAnyHandle location = GeometryUtil.XYZtoIfcCartesianPoint(exporterIFC, conicalFace.Origin, cartesianPoints);
XYZ zdir = conicalFace.Axis;
if (zdir == null)
return null;
// Create a finite profile curve for the cone based on the bounding box.
BoundingBoxUV coneUV = conicalFace.GetBoundingBox();
if (coneUV == null)
return null;
XYZ startPoint = conicalFace.Evaluate(new UV(0, coneUV.Min.V));
XYZ endPoint = conicalFace.Evaluate(new UV(0, coneUV.Max.V));
Curve profileCurve = Line.CreateBound(startPoint, endPoint);
IFCAnyHandle axis = GeometryUtil.VectorToIfcDirection(exporterIFC, zdir);
IFCAnyHandle axisPosition = IFCInstanceExporter.CreateAxis1Placement(file, location, axis);
IFCAnyHandle sweptCurve = CreateProfileCurveFromCurve(file, exporterIFC, profileCurve, Resources.ConicalFaceProfileCurve, cartesianPoints);
// The profile position is optional in IFC4+.
surface = IFCInstanceExporter.CreateSurfaceOfRevolution(file, sweptCurve, null, axisPosition);
}
else if (face is RevolvedFace)
{
RevolvedFace revFace = face as RevolvedFace;
IFCAnyHandle location = GeometryUtil.XYZtoIfcCartesianPoint(exporterIFC, revFace.Origin, cartesianPoints);
XYZ zdir = revFace.Axis;
if (zdir == null)
return null;
// Note that the returned curve is in the coordinate system of the face.
Curve curve = revFace.Curve;
if (curve == null)
return null;
// Create arbitrary plane with z direction as normal.
Plane arbitraryPlane = new Plane(zdir, XYZ.Zero);
Transform revitTransform = Transform.Identity;
revitTransform.BasisX = arbitraryPlane.XVec;
revitTransform.BasisY = arbitraryPlane.YVec;
revitTransform.BasisZ = zdir;
revitTransform.Origin = revFace.Origin;
Curve profileCurve = curve.CreateTransformed(revitTransform);
IFCAnyHandle axis = GeometryUtil.VectorToIfcDirection(exporterIFC, zdir);
IFCAnyHandle axisPosition = IFCInstanceExporter.CreateAxis1Placement(file, location, axis);
IFCAnyHandle sweptCurve = CreateProfileCurveFromCurve(file, exporterIFC, profileCurve, Resources.RevolvedFaceProfileCurve, cartesianPoints);
// The profile position is optional in IFC4+.
surface = IFCInstanceExporter.CreateSurfaceOfRevolution(file, sweptCurve, null, axisPosition);
}
else if (face is RuledFace)
{
return null; // currently does not support this type of face
}
else if (face is HermiteFace)
{
return null; // currently does not support this type of face
}
else
{
return null;
}
// If we had trouble creating a surface, stop trying.
if (IFCAnyHandleUtil.IsNullOrHasNoValue(surface))
return null;
foreach (HashSet<IFCAnyHandle> faceBound in boundsCollection)
{
IFCAnyHandle advancedFace = IFCInstanceExporter.CreateAdvancedFace(file, faceBound, surface, sameSenseAF);
cfsFaces.Add(advancedFace);
}
}
// create advancedBrep
IFCAnyHandle closedShell = IFCInstanceExporter.CreateClosedShell(file, cfsFaces);
advancedBrep = IFCInstanceExporter.CreateAdvancedBrep(file, closedShell);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(advancedBrep))
tr.RollBack();
else
tr.Commit();
return advancedBrep;
}
catch
{
return null;
}
}
}
/// <summary>
/// Exports a CeilingAndFloor element to IFC.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="floor">The floor element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportCeilingAndFloorElement(ExporterIFC exporterIFC, CeilingAndFloor floorElement, GeometryElement geometryElement,
ProductWrapper productWrapper)
{
if (geometryElement == null)
return;
// export parts or not
bool exportParts = PartExporter.CanExportParts(floorElement);
if (exportParts && !PartExporter.CanExportElementInPartExport(floorElement, floorElement.LevelId, false))
return;
string ifcEnumType;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, floorElement, out ifcEnumType);
IFCFile file = exporterIFC.GetFile();
IList<IFCAnyHandle> slabHnds = new List<IFCAnyHandle>();
IList<IFCAnyHandle> brepSlabHnds = new List<IFCAnyHandle>();
IList<IFCAnyHandle> nonBrepSlabHnds = new List<IFCAnyHandle>();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, floorElement))
{
IFCAnyHandle localPlacement = placementSetter.LocalPlacement;
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
bool exportedAsInternalExtrusion = false;
ElementId catId = CategoryUtil.GetSafeCategoryId(floorElement);
IList<IFCAnyHandle> prodReps = new List<IFCAnyHandle>();
IList<ShapeRepresentationType> repTypes = new List<ShapeRepresentationType>();
IList<IList<CurveLoop>> extrusionLoops = new List<IList<CurveLoop>>();
IList<IFCExtrusionCreationData> loopExtraParams = new List<IFCExtrusionCreationData>();
Plane floorPlane = GeometryUtil.CreateDefaultPlane();
IList<IFCAnyHandle> localPlacements = new List<IFCAnyHandle>();
if (!exportParts && (floorElement is Floor))
{
Floor floor = floorElement as Floor;
// Try to use the ExtrusionAnalyzer for the limited cases it handles - 1 solid, no openings, end clippings only.
// Also limited to cases with line and arc boundaries.
//
SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
IList<Solid> solids = solidMeshInfo.GetSolids();
IList<Mesh> meshes = solidMeshInfo.GetMeshes();
if (solids.Count == 1 && meshes.Count == 0)
{
bool completelyClipped;
XYZ floorExtrusionDirection = new XYZ(0, 0, -1);
XYZ modelOrigin = XYZ.Zero;
XYZ floorOrigin = floor.GetVerticalProjectionPoint(modelOrigin, FloorFace.Top);
if (floorOrigin == null)
{
// GetVerticalProjectionPoint may return null if FloorFace.Top is an edited face that doesn't
// go thruough te Revit model orgigin. We'll try the midpoint of the bounding box instead.
BoundingBoxXYZ boundingBox = floorElement.get_BoundingBox(null);
modelOrigin = (boundingBox.Min + boundingBox.Max) / 2.0;
floorOrigin = floor.GetVerticalProjectionPoint(modelOrigin, FloorFace.Top);
}
if (floorOrigin != null)
{
XYZ floorDir = floor.GetNormalAtVerticalProjectionPoint(floorOrigin, FloorFace.Top);
Plane extrusionAnalyzerFloorPlane = new Plane(floorDir, floorOrigin);
HandleAndData floorAndProperties =
ExtrusionExporter.CreateExtrusionWithClippingAndProperties(exporterIFC, floorElement,
catId, solids[0], extrusionAnalyzerFloorPlane, floorExtrusionDirection, null, out completelyClipped);
if (completelyClipped)
return;
if (floorAndProperties.Handle != null)
{
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
representations.Add(floorAndProperties.Handle);
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
prodReps.Add(prodRep);
repTypes.Add(ShapeRepresentationType.SweptSolid);
if (floorAndProperties.Data != null)
loopExtraParams.Add(floorAndProperties.Data);
}
}
}
}
// Use internal routine as backup that handles openings.
if (prodReps.Count == 0)
{
exportedAsInternalExtrusion = ExporterIFCUtils.ExportSlabAsExtrusion(exporterIFC, floorElement,
geometryElement, transformSetter, localPlacement, out localPlacements, out prodReps,
out extrusionLoops, out loopExtraParams, floorPlane);
for (int ii = 0; ii < prodReps.Count; ii++)
{
// all are extrusions
repTypes.Add(ShapeRepresentationType.SweptSolid);
}
}
if (prodReps.Count == 0)
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
BodyData bodyData;
IFCAnyHandle prodDefHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
floorElement, catId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd))
{
ecData.ClearOpenings();
return;
}
prodReps.Add(prodDefHnd);
repTypes.Add(bodyData.ShapeRepresentationType);
}
}
// Create the slab from either the extrusion or the BRep information.
string ifcGUID = GUIDUtil.CreateGUID(floorElement);
int numReps = exportParts ? 1 : prodReps.Count;
string entityType = null;
switch (exportType)
{
case IFCExportType.IfcFooting:
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
entityType = IFCValidateEntry.GetValidIFCType<Revit.IFC.Export.Toolkit.IFC4.IFCFootingType>(floorElement, ifcEnumType, null);
else
entityType = IFCValidateEntry.GetValidIFCType<IFCFootingType>(floorElement, ifcEnumType, null);
break;
case IFCExportType.IfcCovering:
entityType = IFCValidateEntry.GetValidIFCType<IFCCoveringType>(floorElement, ifcEnumType, "FLOORING");
break;
case IFCExportType.IfcRamp:
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
entityType = IFCValidateEntry.GetValidIFCType<Revit.IFC.Export.Toolkit.IFC4.IFCRampType>(floorElement, ifcEnumType, null);
else
entityType = IFCValidateEntry.GetValidIFCType<IFCRampType>(floorElement, ifcEnumType, null);
break;
default:
bool isBaseSlab = false;
AnalyticalModel analyticalModel = floorElement.GetAnalyticalModel();
if (analyticalModel != null)
{
AnalyzeAs slabFoundationType = analyticalModel.GetAnalyzeAs();
isBaseSlab = (slabFoundationType == AnalyzeAs.SlabOnGrade) || (slabFoundationType == AnalyzeAs.Mat);
}
entityType = IFCValidateEntry.GetValidIFCType<IFCSlabType>(floorElement, ifcEnumType, isBaseSlab ? "BASESLAB" : "FLOOR");
break;
}
for (int ii = 0; ii < numReps; ii++)
{
string ifcName = NamingUtil.GetNameOverride(floorElement, NamingUtil.GetIFCNamePlusIndex(floorElement, ii == 0 ? -1 : ii + 1));
string ifcDescription = NamingUtil.GetDescriptionOverride(floorElement, null);
string ifcObjectType = NamingUtil.GetObjectTypeOverride(floorElement, exporterIFC.GetFamilyName());
string ifcTag = NamingUtil.GetTagOverride(floorElement, NamingUtil.CreateIFCElementId(floorElement));
string currentGUID = (ii == 0) ? ifcGUID : GUIDUtil.CreateGUID();
IFCAnyHandle localPlacementHnd = exportedAsInternalExtrusion ? localPlacements[ii] : localPlacement;
IFCAnyHandle slabHnd = null;
// TODO: replace with CreateGenericBuildingElement.
switch (exportType)
{
case IFCExportType.IfcFooting:
slabHnd = IFCInstanceExporter.CreateFooting(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
case IFCExportType.IfcCovering:
slabHnd = IFCInstanceExporter.CreateCovering(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
case IFCExportType.IfcRamp:
slabHnd = IFCInstanceExporter.CreateRamp(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
default:
slabHnd = IFCInstanceExporter.CreateSlab(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
break;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd))
return;
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, floorElement, slabHnd, productWrapper, placementSetter, localPlacementHnd, null);
slabHnds.Add(slabHnd);
if (!exportParts)
{
if (repTypes[ii] == ShapeRepresentationType.Brep)
brepSlabHnds.Add(slabHnd);
else
nonBrepSlabHnds.Add(slabHnd);
}
}
for (int ii = 0; ii < numReps; ii++)
{
IFCExtrusionCreationData loopExtraParam = ii < loopExtraParams.Count ? loopExtraParams[ii] : null;
productWrapper.AddElement(floorElement, slabHnds[ii], placementSetter, loopExtraParam, true);
}
// This call to the native function appears to create Brep opening also when appropriate. But the creation of the IFC instances is not
// controllable from the managed code. Therefore in some cases BRep geometry for Opening will still be exported even in the Reference View
if (exportedAsInternalExtrusion)
ExporterIFCUtils.ExportExtrudedSlabOpenings(exporterIFC, floorElement, placementSetter.LevelInfo,
localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper.ToNative());
}
if (!exportParts)
{
if (nonBrepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, floorElement, nonBrepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, false);
}
if (brepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, floorElement, brepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, true);
}
}
}
tr.Commit();
return;
}
}
/// <summary>
/// Exports a generic element as an IfcSlab.</summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="floor">The floor element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="ifcEnumType">The string value represents the IFC type.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if the floor is exported successfully, false otherwise.</returns>
public static void ExportGenericSlab(ExporterIFC exporterIFC, Element slabElement, GeometryElement geometryElement, string ifcEnumType,
ProductWrapper productWrapper)
{
if (geometryElement == null)
return;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, slabElement))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
bool exportParts = PartExporter.CanExportParts(slabElement);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
IFCAnyHandle localPlacement = placementSetter.LocalPlacement;
IFCAnyHandle prodDefHnd = null;
bool isBRepSlabHnd = false;
if (!exportParts)
{
ecData.SetLocalPlacement(localPlacement);
ElementId catId = CategoryUtil.GetSafeCategoryId(slabElement);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
BodyData bodyData;
prodDefHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
slabElement, catId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd))
{
ecData.ClearOpenings();
return;
}
isBRepSlabHnd = (bodyData.ShapeRepresentationType == ShapeRepresentationType.Brep);
}
// Create the slab from either the extrusion or the BRep information.
string ifcGUID = GUIDUtil.CreateGUID(slabElement);
string entityType = IFCValidateEntry.GetValidIFCType<IFCSlabType>(slabElement, ifcEnumType, "FLOOR");
string ifcName = NamingUtil.GetNameOverride(slabElement, NamingUtil.GetIFCName(slabElement));
string ifcDescription = NamingUtil.GetDescriptionOverride(slabElement, null);
string ifcObjectType = NamingUtil.GetObjectTypeOverride(slabElement, exporterIFC.GetFamilyName());
string ifcTag = NamingUtil.GetTagOverride(slabElement, NamingUtil.CreateIFCElementId(slabElement));
IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(file, ifcGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacement, exportParts ? null : prodDefHnd,
ifcTag, entityType);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd))
return;
if (exportParts)
PartExporter.ExportHostPart(exporterIFC, slabElement, slabHnd, productWrapper, placementSetter, localPlacement, null);
productWrapper.AddElement(slabElement, slabHnd, placementSetter, ecData, true);
if (!exportParts)
{
if (slabElement is HostObject)
{
HostObject hostObject = slabElement as HostObject;
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, slabHnd,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, isBRepSlabHnd);
}
else if (slabElement is FamilyInstance)
{
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, slabElement);
Document doc = slabElement.Document;
CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, matId);
}
OpeningUtil.CreateOpeningsIfNecessary(slabHnd, slabElement, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), placementSetter, productWrapper);
}
}
}
tr.Commit();
return;
}
}
}
/// <summary>
/// Creates a SweptSolidExporter.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="element">The element.</param>
/// <param name="solid">The solid.</param>
/// <param name="normal">The normal of the plane that the path lies on.</param>
/// <returns>The SweptSolidExporter.</returns>
public static SweptSolidExporter Create(ExporterIFC exporterIFC, Element element, SimpleSweptSolidAnalyzer sweptAnalyzer, GeometryObject geomObject)
{
try
{
if (sweptAnalyzer == null)
{
return(null);
}
SweptSolidExporter sweptSolidExporter = null;
IList <Revit.IFC.Export.Utility.GeometryUtil.FaceBoundaryType> faceBoundaryTypes;
IList <CurveLoop> faceBoundaries = GeometryUtil.GetFaceBoundaries(sweptAnalyzer.ProfileFace, null, out faceBoundaryTypes);
string profileName = null;
if (element != null)
{
ElementType type = element.Document.GetElement(element.GetTypeId()) as ElementType;
if (type != null)
{
profileName = type.Name;
}
}
// Is it really an extrusion?
if (sweptAnalyzer.PathCurve is Line)
{
Line line = sweptAnalyzer.PathCurve as Line;
// invalid case
if (MathUtil.VectorsAreOrthogonal(line.Direction, sweptAnalyzer.ProfileFace.Normal))
{
return(null);
}
sweptSolidExporter = new SweptSolidExporter();
sweptSolidExporter.RepresentationType = ShapeRepresentationType.SweptSolid;
Plane plane = new Plane(sweptAnalyzer.ProfileFace.Normal, sweptAnalyzer.ProfileFace.Origin);
sweptSolidExporter.RepresentationItem = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, profileName, faceBoundaries, plane,
line.Direction, UnitUtil.ScaleLength(line.Length));
}
else
{
sweptSolidExporter = new SweptSolidExporter();
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
// Use tessellated geometry in IFC Reference View
if (ExporterUtil.IsReferenceView())
{
// TODO: Create CreateSimpleSweptSolidAsTessellation routine that takes advantage of the superior tessellation of this class.
BodyExporterOptions options = new BodyExporterOptions(false);
sweptSolidExporter.RepresentationItem = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, element, options, geomObject);
sweptSolidExporter.RepresentationType = ShapeRepresentationType.Tessellation;
}
else
{
sweptSolidExporter.RepresentationItem = CreateSimpleSweptSolid(exporterIFC, profileName, faceBoundaries, sweptAnalyzer.ReferencePlaneNormal, sweptAnalyzer.PathCurve);
sweptSolidExporter.RepresentationType = ShapeRepresentationType.AdvancedSweptSolid;
}
}
else
{
sweptSolidExporter.Facets = CreateSimpleSweptSolidAsBRep(exporterIFC, profileName, faceBoundaries, sweptAnalyzer.ReferencePlaneNormal, sweptAnalyzer.PathCurve);
sweptSolidExporter.RepresentationType = ShapeRepresentationType.Brep;
}
}
return(sweptSolidExporter);
}
catch (Exception)
{
return(null);
}
}
/// <summary>
/// Exports a generic element as an IfcSlab.</summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="floor">The floor element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="ifcEnumType">The string value represents the IFC type.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if the floor is exported successfully, false otherwise.</returns>
public static void ExportGenericSlab(ExporterIFC exporterIFC, Element slabElement, GeometryElement geometryElement, string ifcEnumType,
ProductWrapper productWrapper)
{
if (geometryElement == null)
return;
bool exportParts = PartExporter.CanExportParts(slabElement);
IFCFile file = exporterIFC.GetFile();
IList<IFCAnyHandle> slabHnds = new List<IFCAnyHandle>();
IList<IFCAnyHandle> brepSlabHnds = new List<IFCAnyHandle>();
IList<IFCAnyHandle> nonBrepSlabHnds = new List<IFCAnyHandle>();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, slabElement))
{
IFCAnyHandle localPlacement = placementSetter.LocalPlacement;
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
bool exportedAsInternalExtrusion = false;
ElementId catId = CategoryUtil.GetSafeCategoryId(slabElement);
IList<IFCAnyHandle> prodReps = new List<IFCAnyHandle>();
IList<ShapeRepresentationType> repTypes = new List<ShapeRepresentationType>();
IList<IList<CurveLoop>> extrusionLoops = new List<IList<CurveLoop>>();
IList<IFCExtrusionCreationData> loopExtraParams = new List<IFCExtrusionCreationData>();
Plane floorPlane = GeometryUtil.CreateDefaultPlane();
IList<IFCAnyHandle> localPlacements = new List<IFCAnyHandle>();
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
BodyData bodyData;
IFCAnyHandle prodDefHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
slabElement, catId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd))
{
ecData.ClearOpenings();
return;
}
prodReps.Add(prodDefHnd);
repTypes.Add(bodyData.ShapeRepresentationType);
}
// Create the slab from either the extrusion or the BRep information.
string ifcGUID = GUIDUtil.CreateGUID(slabElement);
int numReps = exportParts ? 1 : prodReps.Count;
string entityType = IFCValidateEntry.GetValidIFCType<IFCSlabType>(slabElement, ifcEnumType, "FLOOR");
for (int ii = 0; ii < numReps; ii++)
{
string ifcName = NamingUtil.GetNameOverride(slabElement, NamingUtil.GetIFCNamePlusIndex(slabElement, ii == 0 ? -1 : ii + 1));
string ifcDescription = NamingUtil.GetDescriptionOverride(slabElement, null);
string ifcObjectType = NamingUtil.GetObjectTypeOverride(slabElement, exporterIFC.GetFamilyName());
string ifcTag = NamingUtil.GetTagOverride(slabElement, NamingUtil.CreateIFCElementId(slabElement));
string currentGUID = (ii == 0) ? ifcGUID : GUIDUtil.CreateGUID();
IFCAnyHandle localPlacementHnd = exportedAsInternalExtrusion ? localPlacements[ii] : localPlacement;
IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd))
return;
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, slabElement, slabHnd, productWrapper, placementSetter, localPlacementHnd, null);
}
slabHnds.Add(slabHnd);
if (!exportParts)
{
if (repTypes[ii] == ShapeRepresentationType.Brep)
brepSlabHnds.Add(slabHnd);
else
nonBrepSlabHnds.Add(slabHnd);
}
}
for (int ii = 0; ii < numReps; ii++)
{
IFCExtrusionCreationData loopExtraParam = ii < loopExtraParams.Count ? loopExtraParams[ii] : null;
productWrapper.AddElement(slabElement, slabHnds[ii], placementSetter, loopExtraParam, true);
}
if (exportedAsInternalExtrusion)
ExporterIFCUtils.ExportExtrudedSlabOpenings(exporterIFC, slabElement, placementSetter.LevelInfo,
localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper.ToNative());
}
if (!exportParts)
{
if (slabElement is HostObject)
{
HostObject hostObject = slabElement as HostObject;
if (nonBrepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, nonBrepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, false);
}
if (brepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, brepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, true);
}
}
else if (slabElement is FamilyInstance && slabHnds.Count > 0)
{
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, slabElement);
Document doc = slabElement.Document;
foreach (IFCAnyHandle slabHnd in slabHnds)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, matId);
}
}
}
}
tr.Commit();
return;
}
}
/// <summary>
/// Exports a generic element as an IfcSlab.</summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="floor">The floor element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="ifcEnumType">The string value represents the IFC type.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if the floor is exported successfully, false otherwise.</returns>
public static void ExportGenericSlab(ExporterIFC exporterIFC, Element slabElement, GeometryElement geometryElement, string ifcEnumType,
ProductWrapper productWrapper)
{
if (geometryElement == null)
{
return;
}
bool exportParts = PartExporter.CanExportParts(slabElement);
IFCFile file = exporterIFC.GetFile();
IList <IFCAnyHandle> slabHnds = new List <IFCAnyHandle>();
IList <IFCAnyHandle> brepSlabHnds = new List <IFCAnyHandle>();
IList <IFCAnyHandle> nonBrepSlabHnds = new List <IFCAnyHandle>();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, slabElement))
{
IFCAnyHandle localPlacement = placementSetter.LocalPlacement;
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
bool exportedAsInternalExtrusion = false;
ElementId catId = CategoryUtil.GetSafeCategoryId(slabElement);
IList <IFCAnyHandle> prodReps = new List <IFCAnyHandle>();
IList <ShapeRepresentationType> repTypes = new List <ShapeRepresentationType>();
IList <IList <CurveLoop> > extrusionLoops = new List <IList <CurveLoop> >();
IList <IFCExtrusionCreationData> loopExtraParams = new List <IFCExtrusionCreationData>();
Plane floorPlane = GeometryUtil.CreateDefaultPlane();
IList <IFCAnyHandle> localPlacements = new List <IFCAnyHandle>();
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
BodyData bodyData;
IFCAnyHandle prodDefHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
slabElement, catId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd))
{
ecData.ClearOpenings();
return;
}
prodReps.Add(prodDefHnd);
repTypes.Add(bodyData.ShapeRepresentationType);
}
// Create the slab from either the extrusion or the BRep information.
string ifcGUID = GUIDUtil.CreateGUID(slabElement);
int numReps = exportParts ? 1 : prodReps.Count;
string entityType = IFCValidateEntry.GetValidIFCType <IFCSlabType>(slabElement, ifcEnumType, "FLOOR");
for (int ii = 0; ii < numReps; ii++)
{
string ifcName = NamingUtil.GetNameOverride(slabElement, NamingUtil.GetIFCNamePlusIndex(slabElement, ii == 0 ? -1 : ii + 1));
string ifcDescription = NamingUtil.GetDescriptionOverride(slabElement, null);
string ifcObjectType = NamingUtil.GetObjectTypeOverride(slabElement, exporterIFC.GetFamilyName());
string ifcTag = NamingUtil.GetTagOverride(slabElement, NamingUtil.CreateIFCElementId(slabElement));
string currentGUID = (ii == 0) ? ifcGUID : GUIDUtil.CreateGUID();
IFCAnyHandle localPlacementHnd = exportedAsInternalExtrusion ? localPlacements[ii] : localPlacement;
IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(file, currentGUID, ownerHistory, ifcName,
ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii],
ifcTag, entityType);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd))
{
return;
}
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, slabElement, slabHnd, productWrapper, placementSetter, localPlacementHnd, null);
}
slabHnds.Add(slabHnd);
if (!exportParts)
{
if (repTypes[ii] == ShapeRepresentationType.Brep)
{
brepSlabHnds.Add(slabHnd);
}
else
{
nonBrepSlabHnds.Add(slabHnd);
}
}
}
for (int ii = 0; ii < numReps; ii++)
{
IFCExtrusionCreationData loopExtraParam = ii < loopExtraParams.Count ? loopExtraParams[ii] : null;
productWrapper.AddElement(slabElement, slabHnds[ii], placementSetter, loopExtraParam, true);
}
if (exportedAsInternalExtrusion)
{
ExporterIFCUtils.ExportExtrudedSlabOpenings(exporterIFC, slabElement, placementSetter.LevelInfo,
localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper.ToNative());
}
}
if (!exportParts)
{
if (slabElement is HostObject)
{
HostObject hostObject = slabElement as HostObject;
if (nonBrepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, nonBrepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, false);
}
if (brepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, brepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, true);
}
}
else if (slabElement is FamilyInstance && slabHnds.Count > 0)
{
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, slabElement);
Document doc = slabElement.Document;
foreach (IFCAnyHandle slabHnd in slabHnds)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, matId);
}
}
}
}
tr.Commit();
return;
}
}
/// <summary>
/// Exports an element to IfcPile.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="ifcEnumType">The string value represents the IFC type.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportPile(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
string ifcEnumType, ProductWrapper productWrapper)
{
// export parts or not
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
return;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(setter.LocalPlacement);
IFCAnyHandle prodRep = null;
ElementId matId = ElementId.InvalidElementId;
if (!exportParts)
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
element, catId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
}
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, exporterIFC.GetFamilyName());
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string pileType = IFCValidateEntry.GetValidIFCType(element, ifcEnumType);
IFCAnyHandle pile = IFCInstanceExporter.CreatePile(file, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
instanceName, instanceDescription, instanceObjectType, ecData.GetLocalPlacement(), prodRep, instanceTag, pileType, null);
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, element, pile, productWrapper, setter, setter.LocalPlacement, null);
}
else
{
if (matId != ElementId.InvalidElementId)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, pile, matId);
}
}
productWrapper.AddElement(element, pile, setter, ecData, true);
OpeningUtil.CreateOpeningsIfNecessary(pile, element, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
}
}
tr.Commit();
}
}
/// <summary>
/// Export Geometry in IFC4 Triangulated tessellation
/// </summary>
/// <param name="exporterIFC">the exporter</param>
/// <param name="element">the element</param>
/// <param name="options">the options</param>
/// <param name="geomObject">geometry objects</param>
/// <returns>returns a handle</returns>
public static IFCAnyHandle ExportBodyAsTriangulatedFaceSet(ExporterIFC exporterIFC, Element element, BodyExporterOptions options,
GeometryObject geomObject)
{
IFCFile file = exporterIFC.GetFile();
Document document = element.Document;
IFCAnyHandle triangulatedBody = null;
if (geomObject is Solid)
{
try
{
Solid solid = geomObject as Solid;
SolidOrShellTessellationControls tessellationControls = options.TessellationControls;
// Convert integer level of detail into a 0 to 1 scale.
tessellationControls.LevelOfDetail = ((double)ExporterCacheManager.ExportOptionsCache.LevelOfDetail) / 4.0;
TriangulatedSolidOrShell solidFacetation =
SolidUtils.TessellateSolidOrShell(solid, tessellationControls);
// Only handle one solid or shell.
if (solidFacetation.ShellComponentCount == 1)
{
TriangulatedShellComponent component = solidFacetation.GetShellComponent(0);
int numberOfTriangles = component.TriangleCount;
int numberOfVertices = component.VertexCount;
// We are going to limit the number of triangles to 50,000. This is a arbitrary number
// that should prevent the solid faceter from creating too many extra triangles to sew the surfaces.
// We may evaluate this number over time.
if ((numberOfTriangles > 0 && numberOfVertices > 0) && (numberOfTriangles < 50000))
{
IList<IList<double>> coordList = new List<IList<double>>();
IList<IList<int>> coordIdx = new List<IList<int>>();
// create list of vertices first.
for (int i = 0; i < numberOfVertices; i++)
{
List<double> vertCoord = new List<double>();
XYZ vertex = component.GetVertex(i);
XYZ vertexScaled = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, vertex);
vertCoord.Add(vertexScaled.X);
vertCoord.Add(vertexScaled.Y);
vertCoord.Add(vertexScaled.Z);
coordList.Add(vertCoord);
}
// Create the entity IfcCartesianPointList3D from the List of List<double> and assign it to attribute Coordinates of IfcTriangulatedFaceSet
// Export all of the triangles
for (int i = 0; i < numberOfTriangles; i++)
{
List<int> vertIdx = new List<int>();
TriangleInShellComponent triangle = component.GetTriangle(i);
vertIdx.Add(triangle.VertexIndex0 + 1); // IFC uses index that starts with 1 instead of 0 (following similar standard in X3D)
vertIdx.Add(triangle.VertexIndex1 + 1);
vertIdx.Add(triangle.VertexIndex2 + 1);
coordIdx.Add(vertIdx);
}
// Create attribute CoordIndex from the List of List<int> of the IfcTriangulatedFaceSet
IFCAnyHandle coordPointLists = IFCAnyHandleUtil.CreateInstance(file, IFCEntityType.IfcCartesianPointList3D);
IFCAnyHandleUtil.SetAttribute(coordPointLists, "CoordList", coordList, 1, null, 3, 3);
triangulatedBody = IFCAnyHandleUtil.CreateInstance(file, IFCEntityType.IfcTriangulatedFaceSet);
IFCAnyHandleUtil.SetAttribute(triangulatedBody, "Coordinates", coordPointLists);
IFCAnyHandleUtil.SetAttribute(triangulatedBody, "CoordIndex", coordIdx, 1, null, 3, 3);
}
}
}
catch
{
// Failed! Likely because of the tessellation failed. Try to create from the faceset instead
return ExportSurfaceAsTriangulatedFaceSet(exporterIFC, element, options, geomObject);
}
}
else
{
// It is not from Solid, so we will use the faces to export. It works for Surface export too
triangulatedBody = ExportSurfaceAsTriangulatedFaceSet(exporterIFC, element, options, geomObject);
}
return triangulatedBody;
}
/// <summary>
/// Exports a generic element as an IfcSlab.</summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="floor">The floor element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="ifcEnumType">The string value represents the IFC type.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if the floor is exported successfully, false otherwise.</returns>
public static void ExportGenericSlab(ExporterIFC exporterIFC, Element slabElement, GeometryElement geometryElement, string ifcEnumType,
ProductWrapper productWrapper)
{
if (geometryElement == null)
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, slabElement))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
bool exportParts = PartExporter.CanExportParts(slabElement);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
IFCAnyHandle localPlacement = placementSetter.LocalPlacement;
IFCAnyHandle prodDefHnd = null;
bool isBRepSlabHnd = false;
if (!exportParts)
{
ecData.SetLocalPlacement(localPlacement);
ElementId catId = CategoryUtil.GetSafeCategoryId(slabElement);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.Medium);
BodyData bodyData;
prodDefHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
slabElement, catId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd))
{
ecData.ClearOpenings();
return;
}
isBRepSlabHnd = (bodyData.ShapeRepresentationType == ShapeRepresentationType.Brep || bodyData.ShapeRepresentationType == ShapeRepresentationType.Tessellation);
}
// Create the slab from either the extrusion or the BRep information.
string ifcGUID = GUIDUtil.CreateGUID(slabElement);
string entityType = IFCValidateEntry.GetValidIFCType <IFCSlabType>(slabElement, ifcEnumType, "FLOOR");
IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(exporterIFC, slabElement, ifcGUID, ownerHistory,
localPlacement, exportParts ? null : prodDefHnd, entityType);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd))
{
return;
}
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, slabElement, slabHnd, productWrapper, placementSetter, localPlacement, null);
}
productWrapper.AddElement(slabElement, slabHnd, placementSetter, ecData, true);
if (!exportParts)
{
IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcSlab, IFCEntityType.IfcSlabType, entityType);
IFCAnyHandle typeHnd = ExporterUtil.CreateGenericTypeFromElement(slabElement, exportInfo, file, ownerHistory, entityType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(typeHnd, slabHnd);
if (slabElement is HostObject)
{
HostObject hostObject = slabElement as HostObject;
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, hostObject, slabHnd,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, isBRepSlabHnd, typeHnd);
}
else if (slabElement is FamilyInstance)
{
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, slabElement);
//Document doc = slabElement.Document;
if (typeHnd != null)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, typeHnd, matId);
}
else
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, matId);
}
}
OpeningUtil.CreateOpeningsIfNecessary(slabHnd, slabElement, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), placementSetter, productWrapper);
}
}
}
tr.Commit();
return;
}
}
}
/// <summary>
/// Return a triangulated face set from the list of faces
/// </summary>
/// <param name="exporterIFC">exporter IFC</param>
/// <param name="element">the element</param>
/// <param name="options">the body export options</param>
/// <param name="geomObject">the geometry object</param>
/// <returns>returns the handle</returns>
private static IFCAnyHandle ExportSurfaceAsTriangulatedFaceSet(ExporterIFC exporterIFC, Element element, BodyExporterOptions options,
GeometryObject geomObject)
{
IFCFile file = exporterIFC.GetFile();
List<List<XYZ>> triangleList = new List<List<XYZ>>();
if (geomObject is Solid)
{
Solid geomSolid = geomObject as Solid;
FaceArray faces = geomSolid.Faces;
foreach (Face face in faces)
{
double tessellationLevel = options.TessellationControls.LevelOfDetail;
Mesh faceTriangulation = face.Triangulate(tessellationLevel);
for (int i = 0; i < faceTriangulation.NumTriangles; ++i)
{
List<XYZ> triangleVertices = new List<XYZ>();
MeshTriangle triangle = faceTriangulation.get_Triangle(i);
for (int tri = 0; tri < 3; ++tri)
{
XYZ vert = triangle.get_Vertex(tri);
triangleVertices.Add(vert);
}
triangleList.Add(triangleVertices);
}
}
}
else if (geomObject is Mesh)
{
Mesh geomMesh = geomObject as Mesh;
for (int i = 0; i < geomMesh.NumTriangles; ++i)
{
List<XYZ> triangleVertices = new List<XYZ>();
MeshTriangle triangle = geomMesh.get_Triangle(i);
for (int tri = 0; tri < 3; ++tri)
{
XYZ vert = triangle.get_Vertex(tri);
triangleVertices.Add(vert);
}
triangleList.Add(triangleVertices);
}
}
return GeometryUtil.GetIndexedTriangles(file, triangleList);
}
/// <summary>
/// Exports an element as IFC covering.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element to be exported.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportCovering(ExporterIFC exporterIFC, Element element, GeometryElement geomElem, string ifcEnumType, ProductWrapper productWrapper)
{
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
{
return;
}
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcCovering;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
ElementType elemType = element.Document.GetElement(element.GetTypeId()) as ElementType;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
IFCAnyHandle prodRep = null;
if (!exportParts)
{
ecData.SetLocalPlacement(setter.LocalPlacement);
ecData.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, element,
categoryId, geomElem, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
}
// We will use the category of the element to set a default value for the covering.
string defaultCoveringEnumType = null;
if (categoryId == new ElementId(BuiltInCategory.OST_Ceilings))
{
defaultCoveringEnumType = "CEILING";
}
else if (categoryId == new ElementId(BuiltInCategory.OST_Floors))
{
defaultCoveringEnumType = "FLOORING";
}
else if (categoryId == new ElementId(BuiltInCategory.OST_Roofs))
{
defaultCoveringEnumType = "ROOFING";
}
string instanceGUID = GUIDUtil.CreateGUID(element);
string coveringType = IFCValidateEntry.GetValidIFCPredefinedTypeType(/*element,*/ ifcEnumType, defaultCoveringEnumType, "IfcCoveringType");
IFCAnyHandle covering = IFCInstanceExporter.CreateCovering(exporterIFC, element, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
setter.LocalPlacement, prodRep, coveringType);
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, element, covering, productWrapper, setter, setter.LocalPlacement, null);
}
IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcCovering, IFCEntityType.IfcCoveringType, coveringType);
IFCAnyHandle typeHnd = ExporterUtil.CreateGenericTypeFromElement(element, exportInfo, file, ExporterCacheManager.OwnerHistoryHandle, coveringType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(typeHnd, covering);
bool containInSpace = false;
IFCAnyHandle localPlacementToUse = setter.LocalPlacement;
// Ceiling containment in Space is generally required and not specific to any view
if (ExporterCacheManager.CeilingSpaceRelCache.ContainsKey(element.Id))
{
IList <ElementId> roomlist = ExporterCacheManager.CeilingSpaceRelCache[element.Id];
// Process Ceiling to be contained in a Space only when it is exactly bounding one Space
if (roomlist.Count == 1)
{
productWrapper.AddElement(element, covering, setter, null, false);
// Modify the Ceiling placement to be relative to the Space that it bounds
IFCAnyHandle roomPlacement = IFCAnyHandleUtil.GetObjectPlacement(ExporterCacheManager.SpaceInfoCache.FindSpaceHandle(roomlist[0]));
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(roomPlacement, localPlacementToUse);
Transform inverseTrf = relTrf.Inverse;
IFCAnyHandle relLocalPlacement = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
IFCAnyHandleUtil.SetAttribute(localPlacementToUse, "PlacementRelTo", roomPlacement);
GeometryUtil.SetRelativePlacement(localPlacementToUse, relLocalPlacement);
ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomlist[0], covering);
containInSpace = true;
}
}
// if not contained in Space, assign it to default containment in Level
if (!containInSpace)
{
productWrapper.AddElement(element, covering, setter, null, true);
}
if (!exportParts)
{
Ceiling ceiling = element as Ceiling;
if (ceiling != null)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, ceiling, covering,
geomElem, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, null, null);
}
else
{
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geomElem, exporterIFC, element);
CategoryUtil.CreateMaterialAssociation(exporterIFC, covering, matId);
}
}
OpeningUtil.CreateOpeningsIfNecessary(covering, element, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
}
}
transaction.Commit();
}
}
private static bool ExportBodyAsSolid(ExporterIFC exporterIFC, Element element, BodyExporterOptions options,
IList<HashSet<IFCAnyHandle>> currentFaceHashSetList, GeometryObject geomObject)
{
IFCFile file = exporterIFC.GetFile();
Document document = element.Document;
bool exportedAsSolid = false;
try
{
if (geomObject is Solid)
{
Solid solid = geomObject as Solid;
exportedAsSolid = ExportPlanarBodyIfPossible(exporterIFC, solid, currentFaceHashSetList);
if (exportedAsSolid)
return exportedAsSolid;
SolidOrShellTessellationControls tessellationControlsOriginal = options.TessellationControls;
SolidOrShellTessellationControls tessellationControls = ExporterUtil.GetTessellationControl(element, tessellationControlsOriginal);
TriangulatedSolidOrShell solidFacetation = null;
// We will make (up to) 2 attempts. First we will use tessellationControls, and then we will try tessellationControlsOriginal, but only
// if they are different.
for (int ii = 0; ii < 2; ii++)
{
if (ii == 1 && tessellationControls.Equals(tessellationControlsOriginal))
break;
try
{
SolidOrShellTessellationControls tessellationControlsToUse = (ii == 0) ? tessellationControls : tessellationControlsOriginal;
solidFacetation = SolidUtils.TessellateSolidOrShell(solid, tessellationControlsToUse);
break;
}
catch
{
solidFacetation = null;
}
}
// Only handle one solid or shell.
if (solidFacetation != null && solidFacetation.ShellComponentCount == 1)
{
TriangulatedShellComponent component = solidFacetation.GetShellComponent(0);
int numberOfTriangles = component.TriangleCount;
int numberOfVertices = component.VertexCount;
// We are going to limit the number of triangles to 50,000. This is a arbitrary number
// that should prevent the solid faceter from creating too many extra triangles to sew the surfaces.
// We may evaluate this number over time.
if ((numberOfTriangles > 0 && numberOfVertices > 0) && (numberOfTriangles < 50000))
{
IList<IFCAnyHandle> vertexHandles = new List<IFCAnyHandle>();
HashSet<IFCAnyHandle> currentFaceSet = new HashSet<IFCAnyHandle>();
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
List<List<double>> coordList = new List<List<double>>();
// create list of vertices first.
for (int i = 0; i < numberOfVertices; i++)
{
List<double> vertCoord = new List<double>();
XYZ vertex = component.GetVertex(i);
XYZ vertexScaled = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, vertex);
vertCoord.Add(vertexScaled.X);
vertCoord.Add(vertexScaled.Y);
vertCoord.Add(vertexScaled.Z);
coordList.Add(vertCoord);
}
}
else
{
// create list of vertices first.
for (int ii = 0; ii < numberOfVertices; ii++)
{
XYZ vertex = component.GetVertex(ii);
XYZ vertexScaled = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, vertex);
IFCAnyHandle vertexHandle = ExporterUtil.CreateCartesianPoint(file, vertexScaled);
vertexHandles.Add(vertexHandle);
}
if (!ExportPlanarFacetsIfPossible(file, component, vertexHandles, currentFaceSet))
{
// Export all of the triangles instead.
for (int ii = 0; ii < numberOfTriangles; ii++)
{
TriangleInShellComponent triangle = component.GetTriangle(ii);
IList<IFCAnyHandle> vertices = new List<IFCAnyHandle>();
vertices.Add(vertexHandles[triangle.VertexIndex0]);
vertices.Add(vertexHandles[triangle.VertexIndex1]);
vertices.Add(vertexHandles[triangle.VertexIndex2]);
IFCAnyHandle face = CreateFaceFromVertexList(file, vertices);
currentFaceSet.Add(face);
}
}
currentFaceHashSetList.Add(currentFaceSet);
exportedAsSolid = true;
}
}
}
}
return exportedAsSolid;
}
catch
{
string errMsg = String.Format("TessellateSolidOrShell failed in IFC export for element \"{0}\" with id {1}", element.Name, element.Id);
document.Application.WriteJournalComment(errMsg, false/*timestamp*/);
return false;
}
}
/// <summary>
/// Constructs a copy of a BodyExporterOptions object.
/// </summary>
public BodyExporterOptions(BodyExporterOptions options)
{
TryToExportAsExtrusion = options.TryToExportAsExtrusion;
ExtrusionLocalCoordinateSystem = options.ExtrusionLocalCoordinateSystem;
TryToExportAsSweptSolid = options.TryToExportAsSweptSolid;
AllowOffsetTransform = options.AllowOffsetTransform;
UseMappedGeometriesIfPossible = options.UseMappedGeometriesIfPossible;
UseGroupsIfPossible = options.UseGroupsIfPossible;
TessellationControls = options.TessellationControls;
TessellationLevel = options.TessellationLevel;
}
/// <summary>
/// Exports a beam to IFC beam.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="element">
/// The element to be exported.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportBeam(ExporterIFC exporterIFC,
Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
{
if (geometryElement == null)
return;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
LocationCurve locCurve = element.Location as LocationCurve;
Transform orientTrf = Transform.Identity;
bool canExportAxis = (locCurve != null);
IFCAnyHandle axisRep = null;
XYZ beamDirection = null;
XYZ projDir = null;
Curve curve = null;
Plane plane = null;
if (canExportAxis)
{
curve = locCurve.Curve;
if (curve is Line)
{
Line line = curve as Line;
XYZ planeY, planeOrig;
planeOrig = line.GetEndPoint(0);
beamDirection = line.Direction;
if (Math.Abs(beamDirection.Z) < 0.707) // approx 1.0/sqrt(2.0)
{
planeY = XYZ.BasisZ.CrossProduct(beamDirection);
}
else
{
planeY = XYZ.BasisX.CrossProduct(beamDirection);
}
planeY = planeY.Normalize();
projDir = beamDirection.CrossProduct(planeY);
plane = new Plane(beamDirection, planeY, planeOrig);
orientTrf.BasisX = beamDirection; orientTrf.BasisY = planeY; orientTrf.BasisZ = projDir; orientTrf.Origin = planeOrig;
}
else if (curve is Arc)
{
XYZ yDir, center;
Arc arc = curve as Arc;
beamDirection = arc.XDirection; yDir = arc.YDirection; projDir = arc.Normal; center = arc.Center;
plane = new Plane(beamDirection, yDir, center);
orientTrf.BasisX = beamDirection; orientTrf.BasisY = yDir; orientTrf.BasisZ = projDir; orientTrf.Origin = center;
}
else
canExportAxis = false;
}
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, canExportAxis ? orientTrf : null))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(localPlacement);
if (canExportAxis && (orientTrf.BasisX != null))
{
extrusionCreationData.CustomAxis = beamDirection;
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryCustom;
}
else
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryXY;
IList<Solid> solids = solidMeshInfo.GetSolids();
IList<Mesh> meshes = solidMeshInfo.GetMeshes();
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
// The representation handle generated from one of the methods below.
IFCAnyHandle repHnd = null;
// The list of materials in the solids or meshes.
ICollection<ElementId> materialIds = new HashSet<ElementId>();
// There may be an offset to make the local coordinate system
// be near the origin. This offset will be used to move the axis to the new LCS.
Transform offsetTransform = null;
// If we have a beam with a Linear location line that only has one solid geometry,
// we will try to use the ExtrusionAnalyzer to generate an extrusion with 0 or more clippings.
// This code is currently limited in that it will not process beams with openings, so we
// use other methods below if this one fails.
if (solids.Count == 1 && meshes.Count == 0 && (canExportAxis && (curve is Line)))
{
bool completelyClipped;
beamDirection = orientTrf.BasisX;
Plane beamExtrusionPlane = new Plane(orientTrf.BasisY, orientTrf.BasisZ, orientTrf.Origin);
repHnd = ExtrusionExporter.CreateExtrusionWithClipping(exporterIFC, element,
catId, solids[0], beamExtrusionPlane, beamDirection, null, out completelyClipped);
if (completelyClipped)
return;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
// This is used by the BeamSlopeCalculator. This should probably be generated automatically by
// CreateExtrusionWithClipping.
IFCExtrusionBasis bestAxis = (Math.Abs(beamDirection[0]) > Math.Abs(beamDirection[1])) ?
IFCExtrusionBasis.BasisX : IFCExtrusionBasis.BasisY;
extrusionCreationData.Slope = GeometryUtil.GetSimpleExtrusionSlope(beamDirection, bestAxis);
ElementId materialId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(solids[0], exporterIFC, element);
if (materialId != ElementId.InvalidElementId)
materialIds.Add(materialId);
}
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId,
solids, meshes, bodyExporterOptions, extrusionCreationData);
}
else
{
IList<GeometryObject> geomlist = new List<GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId,
geomlist, bodyExporterOptions, extrusionCreationData);
}
repHnd = bodyData.RepresentationHnd;
materialIds = bodyData.MaterialIds;
offsetTransform = bodyData.OffsetTransform;
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
extrusionCreationData.ClearOpenings();
return;
}
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
if (canExportAxis)
{
XYZ curveOffset = new XYZ(0, 0, 0);
if (offsetTransform != null)
curveOffset = -UnitUtil.UnscaleLength(offsetTransform.Origin);
else
{
// Note that we do not have to have any scaling adjustment here, since the curve origin is in the
// same internal coordinate system as the curve.
curveOffset = -plane.Origin;
}
Plane offsetPlane = new Plane(plane.XVec, plane.YVec, XYZ.Zero);
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, offsetPlane, projDir, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, curve, curveOffset, true);
IList<IFCAnyHandle> axis_items = info.GetCurves();
if (axis_items.Count > 0)
{
string identifierOpt = "Axis"; // this is by IFC2x2 convention, not temporary
string representationTypeOpt = "Curve2D"; // this is by IFC2x2 convention, not temporary
axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, exporterIFC.Get3DContextHandle(identifierOpt),
identifierOpt, representationTypeOpt, axis_items);
representations.Add(axisRep);
}
}
representations.Add(repHnd);
Transform boundingBoxTrf = (offsetTransform == null) ? Transform.Identity : offsetTransform.Inverse;
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, boundingBoxTrf);
if (boundingBoxRep != null)
representations.Add(boundingBoxRep);
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, NamingUtil.CreateIFCObjectName(exporterIFC, element));
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string preDefinedType = "BEAM"; // Default predefined type for Beam
preDefinedType = IFCValidateEntry.GetValidIFCType (element, preDefinedType);
IFCAnyHandle beam = IFCInstanceExporter.CreateBeam(file, instanceGUID, exporterIFC.GetOwnerHistoryHandle(),
instanceName, instanceDescription, instanceObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, instanceTag, preDefinedType);
productWrapper.AddElement(element, beam, setter, extrusionCreationData, true);
OpeningUtil.CreateOpeningsIfNecessary(beam, element, extrusionCreationData, offsetTransform, exporterIFC,
extrusionCreationData.GetLocalPlacement(), setter, productWrapper);
FamilyTypeInfo typeInfo = new FamilyTypeInfo();
typeInfo.ScaledDepth = extrusionCreationData.ScaledLength;
typeInfo.ScaledArea = extrusionCreationData.ScaledArea;
typeInfo.ScaledInnerPerimeter = extrusionCreationData.ScaledInnerPerimeter;
typeInfo.ScaledOuterPerimeter = extrusionCreationData.ScaledOuterPerimeter;
PropertyUtil.CreateBeamColumnBaseQuantities(exporterIFC, beam, element, typeInfo, null);
if (materialIds.Count != 0)
{
CategoryUtil.CreateMaterialAssociations(exporterIFC, beam, materialIds);
}
// Register the beam's IFC handle for later use by truss and beam system export.
ExporterCacheManager.ElementToHandleCache.Register(element.Id, beam);
}
}
transaction.Commit();
}
}
/// <summary>
/// Exports a Rebar Coupler,
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="coupler">The RebarCoupler element.</param>
/// <param name="productWrapper">The product wrapper.</param>
public static void ExportCoupler(ExporterIFC exporterIFC, RebarCoupler coupler, ProductWrapper productWrapper)
{
if (coupler == null)
{
return;
}
FamilySymbol familySymbol = ExporterCacheManager.Document.GetElement(coupler.GetTypeId()) as FamilySymbol;
if (familySymbol == null)
{
return;
}
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcMechanicalFastener;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
ElementId categoryId = CategoryUtil.GetSafeCategoryId(coupler);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
Options options = GeometryUtil.GetIFCExportGeometryOptions();;
string ifcEnumType;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, coupler, out ifcEnumType);
using (IFCTransaction tr = new IFCTransaction(file))
{
FamilyTypeInfo currentTypeInfo = ExporterCacheManager.FamilySymbolToTypeInfoCache.Find(coupler.GetTypeId(), false, exportType);
bool found = currentTypeInfo.IsValid();
if (!found)
{
string typeObjectType = NamingUtil.CreateIFCObjectName(exporterIFC, familySymbol);
HashSet <IFCAnyHandle> propertySetsOpt = new HashSet <IFCAnyHandle>();
GeometryElement exportGeometry = familySymbol.get_Geometry(options);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
bodyData = BodyExporter.ExportBody(exporterIFC, coupler, categoryId, ElementId.InvalidElementId, exportGeometry, bodyExporterOptions, null);
List <IFCAnyHandle> repMap = new List <IFCAnyHandle>();
IFCAnyHandle origin = ExporterUtil.CreateAxis2Placement3D(file);;
repMap.Add(IFCInstanceExporter.CreateRepresentationMap(file, origin, bodyData.RepresentationHnd));
IFCAnyHandle styleHandle = FamilyExporterUtil.ExportGenericType(exporterIFC, exportType, ifcEnumType, propertySetsOpt, repMap, coupler, familySymbol);
productWrapper.RegisterHandleWithElementType(familySymbol, exportType, styleHandle, propertySetsOpt);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(styleHandle))
{
currentTypeInfo.Style = styleHandle;
ExporterCacheManager.FamilySymbolToTypeInfoCache.Register(coupler.GetTypeId(), false, exportType, currentTypeInfo);
}
}
int nCouplerQuantity = coupler.GetCouplerQuantity();
if (nCouplerQuantity <= 0)
{
return;
}
ISet <IFCAnyHandle> createdRebarCouplerHandles = new HashSet <IFCAnyHandle>();
string origInstanceName = NamingUtil.GetNameOverride(coupler, NamingUtil.GetIFCName(coupler));
for (int idx = 0; idx < nCouplerQuantity; idx++)
{
string instanceGUID = GUIDUtil.CreateSubElementGUID(coupler, idx);
IFCAnyHandle style = currentTypeInfo.Style;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(style))
{
return;
}
IList <IFCAnyHandle> repMapList = GeometryUtil.GetRepresentationMaps(style);
if (repMapList == null)
{
return;
}
if (repMapList.Count == 0)
{
return;
}
IList <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
IFCAnyHandle contextOfItems3d = exporterIFC.Get3DContextHandle("Body");
ISet <IFCAnyHandle> representations = new HashSet <IFCAnyHandle>();
representations.Add(ExporterUtil.CreateDefaultMappedItem(file, repMapList[0], XYZ.Zero));
IFCAnyHandle shapeRep = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC, coupler, categoryId, contextOfItems3d, representations);
shapeReps.Add(shapeRep);
IFCAnyHandle productRepresentation = IFCInstanceExporter.CreateProductDefinitionShape(exporterIFC.GetFile(), null, null, shapeReps);
Transform trf = coupler.GetCouplerPositionTransform(idx);
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, coupler, trf, null))
{
IFCAnyHandle instanceHandle = null;
IFCExportInfoPair exportMechFastener = new IFCExportInfoPair(IFCEntityType.IfcMechanicalFastener, ifcEnumType);
instanceHandle = IFCInstanceExporter.CreateGenericIFCEntity(exportMechFastener, exporterIFC, coupler, instanceGUID, ownerHistory,
setter.LocalPlacement, productRepresentation);
string instanceName = NamingUtil.GetNameOverride(instanceHandle, coupler, origInstanceName + ": " + idx);
IFCAnyHandleUtil.OverrideNameAttribute(instanceHandle, instanceName);
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
// In IFC4 NominalDiameter and NominalLength attributes have been deprecated. PredefinedType attribute was added.
IFCAnyHandleUtil.SetAttribute(instanceHandle, "PredefinedType", Revit.IFC.Export.Toolkit.IFC4.IFCMechanicalFastenerType.USERDEFINED);
}
else
{
IFCAnyHandleUtil.SetAttribute(instanceHandle, "NominalDiameter", familySymbol.get_Parameter(BuiltInParameter.COUPLER_WIDTH).AsDouble());
IFCAnyHandleUtil.SetAttribute(instanceHandle, "NominalLength", familySymbol.get_Parameter(BuiltInParameter.COUPLER_LENGTH).AsDouble());
}
createdRebarCouplerHandles.Add(instanceHandle);
productWrapper.AddElement(coupler, instanceHandle, setter, null, true, exportType);
}
}
string couplerGUID = GUIDUtil.CreateGUID(coupler);
if (nCouplerQuantity > 1)
{
// Create a group to hold all of the created IFC entities, if the coupler aren't already in an assembly.
// We want to avoid nested groups of groups of couplers.
if (coupler.AssemblyInstanceId == ElementId.InvalidElementId)
{
string revitObjectType = NamingUtil.GetFamilyAndTypeName(coupler);
string name = NamingUtil.GetNameOverride(coupler, revitObjectType);
string description = NamingUtil.GetDescriptionOverride(coupler, null);
string objectType = NamingUtil.GetObjectTypeOverride(coupler, revitObjectType);
IFCAnyHandle rebarGroup = IFCInstanceExporter.CreateGroup(file, couplerGUID,
ownerHistory, name, description, objectType);
productWrapper.AddElement(coupler, rebarGroup, exportType);
IFCInstanceExporter.CreateRelAssignsToGroup(file, GUIDUtil.CreateGUID(), ownerHistory,
null, null, createdRebarCouplerHandles, null, rebarGroup);
}
}
else
{
// We will update the GUID of the one created element to be the element GUID.
// This will allow the IfcGUID parameter to be use/set if appropriate.
ExporterUtil.SetGlobalId(createdRebarCouplerHandles.ElementAt(0), couplerGUID);
}
tr.Commit();
}
}
/// <summary>
/// Exports an element to IFC footing.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="element">
/// The element.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="ifcEnumType">
/// The string value represents the IFC type.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportFooting(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
string ifcEnumType, ProductWrapper productWrapper)
{
// export parts or not
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
{
return;
}
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcFooting;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, element, out overrideContainerHnd);
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, null, overrideContainerId, overrideContainerHnd))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(setter.LocalPlacement);
IFCAnyHandle prodRep = null;
ElementId matId = ElementId.InvalidElementId;
if (!exportParts)
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
element, catId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
}
string instanceGUID = GUIDUtil.CreateGUID(element);
string footingType = GetIFCFootingType(ifcEnumType); // need to keep it for legacy support when original data follows slightly diff naming
IFCExportInfoPair exportInfo = new IFCExportInfoPair(elementClassTypeEnum, footingType);
IFCAnyHandle footing = IFCInstanceExporter.CreateFooting(exporterIFC, element, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
ecData.GetLocalPlacement(), prodRep, footingType);
// TODO: to allow shared geometry for Footings. For now, Footing export will not use shared geometry
if (exportInfo.ExportType != Common.Enums.IFCEntityType.UnKnown)
{
IFCAnyHandle type = ExporterUtil.CreateGenericTypeFromElement(element, exportInfo, file, ExporterCacheManager.OwnerHistoryHandle, exportInfo.ValidatedPredefinedType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(type, footing);
}
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, element, footing, productWrapper, setter, setter.LocalPlacement, null);
}
else
{
if (matId != ElementId.InvalidElementId)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, footing, matId);
}
}
productWrapper.AddElement(element, footing, setter, ecData, true, exportInfo);
OpeningUtil.CreateOpeningsIfNecessary(footing, element, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
}
}
tr.Commit();
}
}
// NOTE: the useMappedGeometriesIfPossible and useGroupsIfPossible options are experimental and do not yet work well.
// In shipped code, these are always false, and should be kept false until API support routines are proved to be reliable.
private static BodyData ExportBodyAsBRep(ExporterIFC exporterIFC, IList<GeometryObject> splitGeometryList,
IList<KeyValuePair<int, SimpleSweptSolidAnalyzer>> exportAsBRep, IList<IFCAnyHandle> bodyItems,
Element element, ElementId categoryId, ElementId overrideMaterialId, IFCAnyHandle contextOfItems, double eps,
BodyExporterOptions options, BodyData bodyDataIn)
{
bool exportAsBReps = true;
bool hasTriangulatedGeometry = false;
bool hasAdvancedBrepGeometry = false;
IFCFile file = exporterIFC.GetFile();
Document document = element.Document;
// Can't use the optimization functions below if we already have partially populated our body items with extrusions.
int numExtrusions = bodyItems.Count;
bool useMappedGeometriesIfPossible = options.UseMappedGeometriesIfPossible && (numExtrusions != 0);
bool useGroupsIfPossible = options.UseGroupsIfPossible && (numExtrusions != 0);
IList<HashSet<IFCAnyHandle>> currentFaceHashSetList = new List<HashSet<IFCAnyHandle>>();
IList<int> startIndexForObject = new List<int>();
BodyData bodyData = new BodyData(bodyDataIn);
IDictionary<SolidMetrics, HashSet<Solid>> solidMappingGroups = null;
IList<KeyValuePair<int, Transform>> solidMappings = null;
IList<ElementId> materialIds = new List<ElementId>();
// This should currently be always false in shipped code.
if (useMappedGeometriesIfPossible)
{
IList<GeometryObject> newGeometryList = null;
useMappedGeometriesIfPossible = GatherMappedGeometryGroupings(splitGeometryList, out newGeometryList, out solidMappingGroups, out solidMappings);
if (useMappedGeometriesIfPossible && (newGeometryList != null))
splitGeometryList = newGeometryList;
}
BodyGroupKey groupKey = null;
BodyGroupData groupData = null;
// This should currently be always false in shipped code.
if (useGroupsIfPossible)
{
BodyData bodyDataOut = null;
useGroupsIfPossible = ProcessGroupMembership(exporterIFC, file, element, categoryId, contextOfItems, splitGeometryList, bodyData,
out groupKey, out groupData, out bodyDataOut);
if (bodyDataOut != null)
return bodyDataOut;
if (useGroupsIfPossible)
useMappedGeometriesIfPossible = true;
}
bool isCoarse = (options.TessellationLevel == BodyExporterOptions.BodyTessellationLevel.Coarse);
int numBRepsToExport = exportAsBRep.Count;
bool selectiveBRepExport = (numBRepsToExport > 0);
int numGeoms = selectiveBRepExport ? numBRepsToExport : splitGeometryList.Count;
bool canExportAsAdvancedGeometry = ExporterCacheManager.ExportOptionsCache.ExportAs4DesignTransferView;
bool canExportAsTessellatedFaceSet = ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView;
// We will cycle through all of the geometries one at a time, doing the best export we can for each.
for (int index = 0; index < numGeoms; index++)
{
int brepIndex = selectiveBRepExport ? exportAsBRep[index].Key : index;
SimpleSweptSolidAnalyzer currAnalyzer = selectiveBRepExport ? exportAsBRep[index].Value : null;
GeometryObject geomObject = selectiveBRepExport ? splitGeometryList[brepIndex] : splitGeometryList[index];
// A simple test to see if the geometry is a valid solid. This will save a lot of time in CanCreateClosedShell later.
if (exportAsBReps && (geomObject is Solid))
{
try
{
// We don't care what the value is here. What we care about is whether or not it can be calculated. If it can't be calculated,
// it is probably not a valid solid.
double volume = (geomObject as Solid).Volume;
// Current code should already prevent 0 volume solids from coming here, but may as well play it safe.
if (volume <= MathUtil.Eps())
exportAsBReps = false;
}
catch
{
exportAsBReps = false;
}
}
startIndexForObject.Add(currentFaceHashSetList.Count);
ElementId materialId = SetBestMaterialIdInExporter(geomObject, element, overrideMaterialId, exporterIFC);
materialIds.Add(materialId);
bodyData.AddMaterial(materialId);
bool alreadyExported = false;
// First, see if this could be represented as a simple swept solid.
if (exportAsBReps && (currAnalyzer != null))
{
SweptSolidExporter sweptSolidExporter = SweptSolidExporter.Create(exporterIFC, element, currAnalyzer, geomObject);
HashSet<IFCAnyHandle> facetHnds = (sweptSolidExporter != null) ? sweptSolidExporter.Facets : null;
if (facetHnds != null && facetHnds.Count != 0)
{
currentFaceHashSetList.Add(facetHnds);
alreadyExported = true;
}
}
// Next, try to represent as an AdvancedBRep.
if (!alreadyExported && canExportAsAdvancedGeometry)
{
IFCAnyHandle advancedBrepBodyItem = ExportBodyAsAdvancedBrep(exporterIFC, element, options, geomObject);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(advancedBrepBodyItem))
{
bodyItems.Add(advancedBrepBodyItem);
alreadyExported = true;
hasAdvancedBrepGeometry = true;
}
}
// If we are using the Reference View, try a triangulated face set.
// In theory, we could export a tessellated face set for geometry in the Design Transfer View that failed above.
// However, FacetedBReps do hold more information (and aren't only triangles).
if (!alreadyExported && canExportAsTessellatedFaceSet)
{
IFCAnyHandle triangulatedBodyItem = ExportBodyAsTriangulatedFaceSet(exporterIFC, element, options, geomObject);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(triangulatedBodyItem))
{
bodyItems.Add(triangulatedBodyItem);
alreadyExported = true;
hasTriangulatedGeometry = true;
}
// We should log here that we couldn't export a geometry. We aren't allowed to use the traditional methods below.
if (!alreadyExported)
continue;
}
// If the above options do not generate any body, do the traditional step for Brep
if (!alreadyExported && (exportAsBReps || isCoarse))
alreadyExported = ExportBodyAsSolid(exporterIFC, element, options, currentFaceHashSetList, geomObject);
// If all else fails, use the internal routine to go through the faces. This will likely create a surface model.
if (!alreadyExported)
{
IFCGeometryInfo faceListInfo = IFCGeometryInfo.CreateFaceGeometryInfo(eps, isCoarse);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, faceListInfo, geomObject, XYZ.Zero, false);
IList<ICollection<IFCAnyHandle>> faceSetList = faceListInfo.GetFaces();
int numBReps = faceSetList.Count;
if (numBReps == 0)
continue;
foreach (ICollection<IFCAnyHandle> currentFaceSet in faceSetList)
{
if (currentFaceSet.Count == 0)
continue;
if (exportAsBReps)
{
bool canExportAsClosedShell = (currentFaceSet.Count >= 4);
if (canExportAsClosedShell)
{
if ((geomObject is Mesh) && (numBReps == 1))
{
// use optimized version.
canExportAsClosedShell = CanCreateClosedShell(geomObject as Mesh);
}
else
{
canExportAsClosedShell = CanCreateClosedShell(currentFaceSet);
}
}
if (!canExportAsClosedShell)
{
exportAsBReps = false;
// We'll need to invalidate the extrusions we created and replace them with BReps.
if (selectiveBRepExport && (numGeoms != splitGeometryList.Count))
{
for (int fixIndex = 0; fixIndex < numExtrusions; fixIndex++)
{
bodyItems[0].Delete();
bodyItems.RemoveAt(0);
}
numExtrusions = 0;
numGeoms = splitGeometryList.Count;
int currBRepIndex = 0;
for (int fixIndex = 0; fixIndex < numGeoms; fixIndex++)
{
bool outOfRange = (currBRepIndex >= numBRepsToExport);
if (!outOfRange && (exportAsBRep[currBRepIndex].Key == fixIndex))
{
currBRepIndex++;
continue;
}
SimpleSweptSolidAnalyzer fixAnalyzer = outOfRange ? null : exportAsBRep[currBRepIndex].Value;
exportAsBRep.Add(new KeyValuePair<int, SimpleSweptSolidAnalyzer>(fixIndex, fixAnalyzer));
}
numBRepsToExport = exportAsBRep.Count;
}
}
}
currentFaceHashSetList.Add(new HashSet<IFCAnyHandle>(currentFaceSet));
}
}
}
if (hasTriangulatedGeometry)
{
HashSet<IFCAnyHandle> bodyItemSet = new HashSet<IFCAnyHandle>();
bodyItemSet.UnionWith(bodyItems);
if (bodyItemSet.Count > 0)
{
bodyData.RepresentationHnd = RepresentationUtil.CreateTessellatedRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet, null);
bodyData.ShapeRepresentationType = ShapeRepresentationType.Tessellation;
}
}
else if (hasAdvancedBrepGeometry)
{
HashSet<IFCAnyHandle> bodyItemSet = new HashSet<IFCAnyHandle>();
bodyItemSet.UnionWith(bodyItems);
if (bodyItemSet.Count > 0)
{
bodyData.RepresentationHnd = RepresentationUtil.CreateAdvancedBRepRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet, null);
bodyData.ShapeRepresentationType = ShapeRepresentationType.AdvancedBrep;
}
}
else
{
startIndexForObject.Add(currentFaceHashSetList.Count); // end index for last object.
IList<IFCAnyHandle> repMapItems = new List<IFCAnyHandle>();
int size = currentFaceHashSetList.Count;
if (exportAsBReps)
{
int matToUse = -1;
for (int ii = 0; ii < size; ii++)
{
if (startIndexForObject[matToUse + 1] == ii)
matToUse++;
HashSet<IFCAnyHandle> currentFaceHashSet = currentFaceHashSetList[ii];
ElementId currMatId = materialIds[matToUse];
IFCAnyHandle faceOuter = IFCInstanceExporter.CreateClosedShell(file, currentFaceHashSet);
IFCAnyHandle brepHnd = RepresentationUtil.CreateFacetedBRep(exporterIFC, document, faceOuter, currMatId);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(brepHnd))
{
if (useMappedGeometriesIfPossible)
{
IFCAnyHandle currMappedRepHnd = CreateBRepRepresentationMap(exporterIFC, file, element, categoryId, contextOfItems, brepHnd);
repMapItems.Add(currMappedRepHnd);
IFCAnyHandle mappedItemHnd = ExporterUtil.CreateDefaultMappedItem(file, currMappedRepHnd);
bodyItems.Add(mappedItemHnd);
}
else
bodyItems.Add(brepHnd);
}
}
}
else
{
IDictionary<ElementId, HashSet<IFCAnyHandle>> faceSets = new Dictionary<ElementId, HashSet<IFCAnyHandle>>();
int matToUse = -1;
for (int ii = 0; ii < size; ii++)
{
HashSet<IFCAnyHandle> currentFaceHashSet = currentFaceHashSetList[ii];
if (startIndexForObject[matToUse + 1] == ii)
matToUse++;
IFCAnyHandle faceSetHnd = IFCInstanceExporter.CreateConnectedFaceSet(file, currentFaceHashSet);
if (useMappedGeometriesIfPossible)
{
IFCAnyHandle currMappedRepHnd = CreateSurfaceRepresentationMap(exporterIFC, file, element, categoryId, contextOfItems, faceSetHnd);
repMapItems.Add(currMappedRepHnd);
IFCAnyHandle mappedItemHnd = ExporterUtil.CreateDefaultMappedItem(file, currMappedRepHnd);
bodyItems.Add(mappedItemHnd);
}
else
{
HashSet<IFCAnyHandle> surfaceSet = null;
if (faceSets.TryGetValue(materialIds[matToUse], out surfaceSet))
{
surfaceSet.Add(faceSetHnd);
}
else
{
surfaceSet = new HashSet<IFCAnyHandle>();
surfaceSet.Add(faceSetHnd);
faceSets[materialIds[matToUse]] = surfaceSet;
}
}
}
if (faceSets.Count > 0)
{
foreach (KeyValuePair<ElementId, HashSet<IFCAnyHandle>> faceSet in faceSets)
{
IFCAnyHandle surfaceModel = IFCInstanceExporter.CreateFaceBasedSurfaceModel(file, faceSet.Value);
BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, document, surfaceModel, faceSet.Key);
bodyItems.Add(surfaceModel);
}
}
}
if (bodyItems.Count == 0)
return bodyData;
// Add in mapped items.
if (useMappedGeometriesIfPossible && (solidMappings != null))
{
foreach (KeyValuePair<int, Transform> mappedItem in solidMappings)
{
for (int idx = startIndexForObject[mappedItem.Key]; idx < startIndexForObject[mappedItem.Key + 1]; idx++)
{
IFCAnyHandle mappedItemHnd = ExporterUtil.CreateMappedItemFromTransform(file, repMapItems[idx], mappedItem.Value);
bodyItems.Add(mappedItemHnd);
}
}
}
HashSet<IFCAnyHandle> bodyItemSet = new HashSet<IFCAnyHandle>();
bodyItemSet.UnionWith(bodyItems);
if (useMappedGeometriesIfPossible)
{
bodyData.RepresentationHnd = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet);
}
else if (exportAsBReps)
{
if (numExtrusions > 0)
bodyData.RepresentationHnd = RepresentationUtil.CreateSolidModelRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet);
else
bodyData.RepresentationHnd = RepresentationUtil.CreateBRepRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet);
}
else
bodyData.RepresentationHnd = RepresentationUtil.CreateSurfaceRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet, false, null);
if (useGroupsIfPossible && (groupKey != null) && (groupData != null))
{
groupData.Handles = repMapItems;
ExporterCacheManager.GroupElementGeometryCache.Register(groupKey, groupData);
}
bodyData.ShapeRepresentationType = ShapeRepresentationType.Brep;
}
return bodyData;
}
/// <summary>
/// Exports an element as IFC railing.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="element">
/// The element to be exported.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportRailing(ExporterIFC exporterIFC, Element element, GeometryElement geomElem, string ifcEnumType, ProductWrapper productWrapper)
{
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcRailing;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
ElementType elemType = element.Document.GetElement(element.GetTypeId()) as ElementType;
IFCFile file = exporterIFC.GetFile();
Options geomOptions = GeometryUtil.GetIFCExportGeometryOptions();
using (IFCTransaction transaction = new IFCTransaction(file))
{
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, element, out overrideContainerHnd);
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, null, overrideContainerId, overrideContainerHnd))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
StairRampContainerInfo stairRampInfo = null;
ElementId hostId = GetStairOrRampHostId(exporterIFC, element as Railing);
Transform inverseTrf = Transform.Identity;
if (hostId != ElementId.InvalidElementId)
{
stairRampInfo = ExporterCacheManager.StairRampContainerInfoCache.GetStairRampContainerInfo(hostId);
IFCAnyHandle stairRampLocalPlacement = stairRampInfo.LocalPlacements[0];
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(stairRampLocalPlacement, localPlacement);
inverseTrf = relTrf.Inverse;
IFCAnyHandle railingLocalPlacement = ExporterUtil.CreateLocalPlacement(file, stairRampLocalPlacement,
inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
localPlacement = railingLocalPlacement;
}
ecData.SetLocalPlacement(localPlacement);
SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geomElem);
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
IList <GeometryObject> gObjs = FamilyExporterUtil.RemoveInvisibleSolidsAndMeshes(element.Document, exporterIFC, ref solids, ref meshes);
Railing railingElem = element as Railing;
IList <ElementId> subElementIds = CollectSubElements(railingElem);
foreach (ElementId subElementId in subElementIds)
{
Element subElement = railingElem.Document.GetElement(subElementId);
if (subElement != null)
{
GeometryElement subElementGeom = GeometryUtil.GetOneLevelGeometryElement(subElement.get_Geometry(geomOptions), 0);
SolidMeshGeometryInfo subElementSolidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(subElementGeom);
IList <Solid> subElemSolids = subElementSolidMeshInfo.GetSolids();
IList <Mesh> subElemMeshes = subElementSolidMeshInfo.GetMeshes();
IList <GeometryObject> partGObjs = FamilyExporterUtil.RemoveInvisibleSolidsAndMeshes(element.Document, exporterIFC, ref subElemSolids, ref subElemMeshes);
foreach (Solid subElSolid in subElemSolids)
{
solids.Add(subElSolid);
}
foreach (Mesh subElMesh in subElemMeshes)
{
meshes.Add(subElMesh);
}
}
}
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.Medium);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId, solids, meshes, bodyExporterOptions, ecData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geomElem);
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId, geomlist, bodyExporterOptions, ecData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
if (ecData != null)
{
ecData.ClearOpenings();
}
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(bodyRep);
IList <GeometryObject> geomObjects = new List <GeometryObject>(solids);
foreach (Mesh mesh in meshes)
{
geomObjects.Add(mesh);
}
Transform boundingBoxTrf = (bodyData.OffsetTransform != null) ? bodyData.OffsetTransform.Inverse : Transform.Identity;
boundingBoxTrf = inverseTrf.Multiply(boundingBoxTrf);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geomObjects, boundingBoxTrf);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
string instanceGUID = GUIDUtil.CreateGUID(element);
IFCAnyHandle railing = IFCInstanceExporter.CreateRailing(exporterIFC, element, instanceGUID, ownerHistory,
ecData.GetLocalPlacement(), prodRep, ifcEnumType);
IFCExportInfoPair exportInfo = new IFCExportInfoPair(elementClassTypeEnum, ifcEnumType);
bool associateToLevel = (hostId == ElementId.InvalidElementId);
productWrapper.AddElement(element, railing, setter, ecData, associateToLevel, exportInfo);
OpeningUtil.CreateOpeningsIfNecessary(railing, element, ecData, bodyData.OffsetTransform,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
CategoryUtil.CreateMaterialAssociation(exporterIFC, railing, bodyData.MaterialIds);
// Create multi-story duplicates of this railing.
if (stairRampInfo != null)
{
stairRampInfo.AddComponent(0, railing);
List <IFCAnyHandle> stairHandles = stairRampInfo.StairOrRampHandles;
for (int ii = 1; ii < stairHandles.Count; ii++)
{
IFCAnyHandle railingLocalPlacement = stairRampInfo.LocalPlacements[ii];
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(railingLocalPlacement))
{
IFCAnyHandle railingHndCopy = CopyRailingHandle(exporterIFC, element, catId, railingLocalPlacement, railing);
stairRampInfo.AddComponent(ii, railingHndCopy);
productWrapper.AddElement(element, railingHndCopy, (IFCLevelInfo)null, ecData, false, exportInfo);
CategoryUtil.CreateMaterialAssociation(exporterIFC, railingHndCopy, bodyData.MaterialIds);
}
}
ExporterCacheManager.StairRampContainerInfoCache.AddStairRampContainerInfo(hostId, stairRampInfo);
}
}
transaction.Commit();
}
}
}
/// <summary>
/// Exports a geometry element to boundary representation.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="exportBoundaryRep">True if to export boundary representation.</param>
/// <param name="exportAsFacetation">True if to export the geometry as facetation.</param>
/// <param name="bodyRep">Body representation.</param>
/// <param name="boundaryRep">Boundary representation.</param>
/// <returns>True if success, false if fail.</returns>
public static bool ExportSurface(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
bool exportBoundaryRep, bool exportAsFacetation, ref IFCAnyHandle bodyRep, ref IFCAnyHandle boundaryRep)
{
if (geometryElement == null)
return false;
IFCGeometryInfo ifcGeomInfo = null;
Document doc = element.Document;
Plane plane = GeometryUtil.CreateDefaultPlane();
XYZ projDir = new XYZ(0, 0, 1);
double eps = UnitUtil.ScaleLength(doc.Application.VertexTolerance);
ifcGeomInfo = IFCGeometryInfo.CreateFaceGeometryInfo(exporterIFC, plane, projDir, eps, exportBoundaryRep);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, ifcGeomInfo, geometryElement, XYZ.Zero, true);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle surface;
// Use tessellated geometry for surface in IFC Reference View
if (ExporterUtil.IsReferenceView())
{
BodyExporterOptions options = new BodyExporterOptions(false);
surface = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, element, options, geometryElement);
}
else
{
HashSet<IFCAnyHandle> faceSets = new HashSet<IFCAnyHandle>();
IList<ICollection<IFCAnyHandle>> faceList = ifcGeomInfo.GetFaces();
foreach (ICollection<IFCAnyHandle> faces in faceList)
{
// no faces, don't complain.
if (faces.Count == 0)
continue;
HashSet<IFCAnyHandle> faceSet = new HashSet<IFCAnyHandle>(faces);
faceSets.Add(IFCInstanceExporter.CreateConnectedFaceSet(file, faceSet));
}
if (faceSets.Count == 0)
return false;
surface = IFCInstanceExporter.CreateFaceBasedSurfaceModel(file, faceSets);
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(surface))
return false;
BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, doc, surface, BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element));
ISet<IFCAnyHandle> surfaceItems = new HashSet<IFCAnyHandle>();
surfaceItems.Add(surface);
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
bodyRep = RepresentationUtil.CreateSurfaceRep(exporterIFC, element, catId, exporterIFC.Get3DContextHandle("Body"), surfaceItems,
exportAsFacetation, bodyRep);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
return false;
ICollection<IFCAnyHandle> boundaryRepresentations = ifcGeomInfo.GetRepresentations();
if (exportBoundaryRep && boundaryRepresentations.Count > 0)
{
HashSet<IFCAnyHandle> boundaryRepresentationSet = new HashSet<IFCAnyHandle>();
boundaryRepresentationSet.UnionWith(boundaryRepresentations);
boundaryRep = RepresentationUtil.CreateBoundaryRep(exporterIFC, element, catId, exporterIFC.Get3DContextHandle("FootPrint"), boundaryRepresentationSet,
boundaryRep);
}
return true;
}
/// <summary>
/// Exports list of geometries to IFC body representation.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="categoryId">The category id.</param>
/// <param name="geometryListIn">The geometry list.</param>
/// <param name="options">The settings for how to export the body.</param>
/// <param name="exportBodyParams">The extrusion creation data.</param>
/// <returns>The BodyData containing the handle, offset and material ids.</returns>
public static BodyData ExportBody(ExporterIFC exporterIFC,
Element element,
ElementId categoryId,
ElementId overrideMaterialId,
IList<GeometryObject> geometryList,
BodyExporterOptions options,
IFCExtrusionCreationData exportBodyParams)
{
BodyData bodyData = new BodyData();
if (geometryList.Count == 0)
return bodyData;
Document document = element.Document;
bool tryToExportAsExtrusion = options.TryToExportAsExtrusion;
bool canExportSolidModelRep = tryToExportAsExtrusion && ExporterCacheManager.ExportOptionsCache.CanExportSolidModelRep;
bool useCoarseTessellation = (ExporterCacheManager.ExportOptionsCache.LevelOfDetail < 4);
bool allowAdvancedBReps = ExporterCacheManager.ExportOptionsCache.ExportAs4 && !ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView;
// We will try to export as a swept solid if the option is set, and we are either exporting to a schema that allows it,
// or we are using a coarse tessellation, in which case we will export the swept solid as an optimzed BRep.
bool tryToExportAsSweptSolid = options.TryToExportAsSweptSolid && (allowAdvancedBReps || useCoarseTessellation);
// We will allow exporting swept solids as BReps or TriangulatedFaceSet if we are exporting to a schema before IFC4, or to a Reference View MVD,
// and we allow coarse representations. In the future, we may allow more control here.
// Note that we disable IFC4 because in IFC4, we will export it as a true swept solid instead, except for the Reference View MVD.
bool tryToExportAsSweptSolidAsTessellation = tryToExportAsSweptSolid && useCoarseTessellation && !allowAdvancedBReps;
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle contextOfItems = exporterIFC.Get3DContextHandle("Body");
double eps = UnitUtil.ScaleLength(element.Document.Application.VertexTolerance);
bool allFaces = true;
foreach (GeometryObject geomObject in geometryList)
{
if (!(geomObject is Face))
{
allFaces = false;
break;
}
}
IList<IFCAnyHandle> bodyItems = new List<IFCAnyHandle>();
IList<ElementId> materialIdsForExtrusions = new List<ElementId>();
// This is a list of geometries that can be exported using the coarse facetation of the SweptSolidExporter.
IList<KeyValuePair<int, SimpleSweptSolidAnalyzer>> exportAsBRep = new List<KeyValuePair<int, SimpleSweptSolidAnalyzer>>();
IList<int> exportAsSweptSolid = new List<int>();
IList<int> exportAsExtrusion = new List<int>();
bool hasExtrusions = false;
bool hasSweptSolids = false;
bool hasSweptSolidsAsBReps = false;
ShapeRepresentationType hasRepresentationType = ShapeRepresentationType.Undefined;
BoundingBoxXYZ bbox = GeometryUtil.GetBBoxOfGeometries(geometryList);
XYZ unscaledTrfOrig = new XYZ();
int numItems = geometryList.Count;
bool tryExtrusionAnalyzer = tryToExportAsExtrusion && (options.ExtrusionLocalCoordinateSystem != null) && (numItems == 1) && (geometryList[0] is Solid);
bool supportOffsetTransformForExtrusions = !(tryExtrusionAnalyzer || tryToExportAsSweptSolidAsTessellation);
bool useOffsetTransformForExtrusions = (options.AllowOffsetTransform && supportOffsetTransformForExtrusions && (exportBodyParams != null));
using (IFCTransaction tr = new IFCTransaction(file))
{
// generate "bottom corner" of bbox; create new local placement if passed in.
// need to transform, but not scale, this point to make it the new origin.
using (TransformSetter transformSetter = TransformSetter.Create())
{
if (useOffsetTransformForExtrusions)
bodyData.OffsetTransform = transformSetter.InitializeFromBoundingBox(exporterIFC, bbox, exportBodyParams, out unscaledTrfOrig);
// If we passed in an ExtrusionLocalCoordinateSystem, and we have 1 Solid, we will try to create an extrusion using the ExtrusionAnalyzer.
// If we succeed, we will skip the rest of the routine, otherwise we will try with the backup extrusion method.
// This doesn't yet create fallback information for solid models that are hybrid extrusions and BReps.
if (tryToExportAsExtrusion)
{
if (tryExtrusionAnalyzer)
{
using (IFCTransaction extrusionTransaction = new IFCTransaction(file))
{
Plane extrusionPlane = new Plane(
options.ExtrusionLocalCoordinateSystem.BasisY,
options.ExtrusionLocalCoordinateSystem.BasisZ,
options.ExtrusionLocalCoordinateSystem.Origin);
XYZ extrusionDirection = options.ExtrusionLocalCoordinateSystem.BasisX;
bool completelyClipped;
HandleAndData extrusionData = ExtrusionExporter.CreateExtrusionWithClippingAndProperties(exporterIFC, element,
CategoryUtil.GetSafeCategoryId(element), geometryList[0] as Solid, extrusionPlane,
extrusionDirection, null, out completelyClipped);
if (!completelyClipped && !IFCAnyHandleUtil.IsNullOrHasNoValue(extrusionData.Handle) && extrusionData.BaseExtrusions != null && extrusionData.BaseExtrusions.Count == 1)
{
HashSet<ElementId> materialIds = extrusionData.MaterialIds;
// We skip setting and getting the material id from the exporter as unnecessary.
ElementId matIdFromGeom = (materialIds != null && materialIds.Count > 0) ? materialIds.First() : ElementId.InvalidElementId;
ElementId matId = (overrideMaterialId != ElementId.InvalidElementId) ? overrideMaterialId : matIdFromGeom;
bodyItems.Add(extrusionData.BaseExtrusions[0]);
materialIdsForExtrusions.Add(matId);
if (matId != ElementId.InvalidElementId)
bodyData.AddMaterial(matId);
bodyData.RepresentationHnd = extrusionData.Handle;
bodyData.ShapeRepresentationType = extrusionData.ShapeRepresentationType;
if (exportBodyParams != null && extrusionData.Data != null)
{
exportBodyParams.Slope = extrusionData.Data.Slope;
exportBodyParams.ScaledLength = extrusionData.Data.ScaledLength;
exportBodyParams.ExtrusionDirection = extrusionData.Data.ExtrusionDirection;
exportBodyParams.ScaledHeight = extrusionData.Data.ScaledHeight;
exportBodyParams.ScaledWidth = extrusionData.Data.ScaledWidth;
exportBodyParams.ScaledArea = extrusionData.Data.ScaledArea;
exportBodyParams.ScaledInnerPerimeter = extrusionData.Data.ScaledInnerPerimeter;
exportBodyParams.ScaledOuterPerimeter = extrusionData.Data.ScaledOuterPerimeter;
}
hasExtrusions = true;
extrusionTransaction.Commit();
}
else
{
extrusionTransaction.RollBack();
}
}
}
// Only try if ExtrusionAnalyzer wasn't called, or failed.
if (!hasExtrusions)
{
// Check to see if we have Geometries or GFaces.
// We will have the specific all GFaces case and then the generic case.
IList<Face> faces = null;
if (allFaces)
{
faces = new List<Face>();
foreach (GeometryObject geometryObject in geometryList)
{
faces.Add(geometryObject as Face);
}
}
// Options used if we try to export extrusions.
IFCExtrusionAxes axesToExtrudeIn = exportBodyParams != null ? exportBodyParams.PossibleExtrusionAxes : IFCExtrusionAxes.TryDefault;
XYZ directionToExtrudeIn = XYZ.Zero;
if (exportBodyParams != null && exportBodyParams.HasCustomAxis)
directionToExtrudeIn = exportBodyParams.CustomAxis;
double lengthScale = UnitUtil.ScaleLengthForRevitAPI();
IFCExtrusionCalculatorOptions extrusionOptions =
new IFCExtrusionCalculatorOptions(exporterIFC, axesToExtrudeIn, directionToExtrudeIn, lengthScale);
int numExtrusionsToCreate = allFaces ? 1 : geometryList.Count;
IList<IList<IFCExtrusionData>> extrusionLists = new List<IList<IFCExtrusionData>>();
for (int ii = 0; ii < numExtrusionsToCreate; ii++)
{
IList<IFCExtrusionData> extrusionList = new List<IFCExtrusionData>();
if (tryToExportAsExtrusion)
{
if (allFaces)
extrusionList = IFCExtrusionCalculatorUtils.CalculateExtrusionData(extrusionOptions, faces);
else
extrusionList = IFCExtrusionCalculatorUtils.CalculateExtrusionData(extrusionOptions, geometryList[ii]);
}
if (extrusionList.Count == 0)
{
// If we are trying to create swept solids, we will keep going, but we won't try to create more extrusions unless we are also exporting a solid model.
if (tryToExportAsSweptSolid)
{
if (!canExportSolidModelRep)
tryToExportAsExtrusion = false;
exportAsSweptSolid.Add(ii);
}
else if (!canExportSolidModelRep)
{
tryToExportAsExtrusion = false;
break;
}
else
exportAsBRep.Add(new KeyValuePair<int, SimpleSweptSolidAnalyzer>(ii, null));
}
else
{
extrusionLists.Add(extrusionList);
exportAsExtrusion.Add(ii);
}
}
int numCreatedExtrusions = extrusionLists.Count;
for (int ii = 0; ii < numCreatedExtrusions && tryToExportAsExtrusion; ii++)
{
int geomIndex = exportAsExtrusion[ii];
ElementId matId = SetBestMaterialIdInExporter(geometryList[geomIndex], element, overrideMaterialId, exporterIFC);
if (matId != ElementId.InvalidElementId)
bodyData.AddMaterial(matId);
if (exportBodyParams != null && exportBodyParams.AreInnerRegionsOpenings)
{
IList<CurveLoop> curveLoops = extrusionLists[ii][0].GetLoops();
XYZ extrudedDirection = extrusionLists[ii][0].ExtrusionDirection;
int numLoops = curveLoops.Count;
for (int jj = numLoops - 1; jj > 0; jj--)
{
ExtrusionExporter.AddOpeningData(exportBodyParams, extrusionLists[ii][0], curveLoops[jj]);
extrusionLists[ii][0].RemoveLoopAt(jj);
}
}
bool exportedAsExtrusion = false;
IFCExtrusionBasis whichBasis = extrusionLists[ii][0].ExtrusionBasis;
if (whichBasis >= 0)
{
IFCAnyHandle extrusionHandle = ExtrusionExporter.CreateExtrudedSolidFromExtrusionData(exporterIFC, element, extrusionLists[ii][0]);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(extrusionHandle))
{
bodyItems.Add(extrusionHandle);
materialIdsForExtrusions.Add(exporterIFC.GetMaterialIdForCurrentExportState());
IList<CurveLoop> curveLoops = extrusionLists[ii][0].GetLoops();
XYZ extrusionDirection = extrusionLists[ii][0].ExtrusionDirection;
if (exportBodyParams != null)
{
exportBodyParams.Slope = GeometryUtil.GetSimpleExtrusionSlope(extrusionDirection, whichBasis);
exportBodyParams.ScaledLength = extrusionLists[ii][0].ScaledExtrusionLength;
exportBodyParams.ExtrusionDirection = extrusionDirection;
for (int kk = 1; kk < extrusionLists[ii].Count; kk++)
{
ExtrusionExporter.AddOpeningData(exportBodyParams, extrusionLists[ii][kk]);
}
Plane plane = null;
double height = 0.0, width = 0.0;
if (ExtrusionExporter.ComputeHeightWidthOfCurveLoop(curveLoops[0], plane, out height, out width))
{
exportBodyParams.ScaledHeight = UnitUtil.ScaleLength(height);
exportBodyParams.ScaledWidth = UnitUtil.ScaleLength(width);
}
double area = ExporterIFCUtils.ComputeAreaOfCurveLoops(curveLoops);
if (area > 0.0)
{
exportBodyParams.ScaledArea = UnitUtil.ScaleArea(area);
}
double innerPerimeter = ExtrusionExporter.ComputeInnerPerimeterOfCurveLoops(curveLoops);
double outerPerimeter = ExtrusionExporter.ComputeOuterPerimeterOfCurveLoops(curveLoops);
if (innerPerimeter > 0.0)
exportBodyParams.ScaledInnerPerimeter = UnitUtil.ScaleLength(innerPerimeter);
if (outerPerimeter > 0.0)
exportBodyParams.ScaledOuterPerimeter = UnitUtil.ScaleLength(outerPerimeter);
}
exportedAsExtrusion = true;
hasExtrusions = true;
}
}
if (!exportedAsExtrusion)
{
if (tryToExportAsSweptSolid)
exportAsSweptSolid.Add(ii);
else if (!canExportSolidModelRep)
{
tryToExportAsExtrusion = false;
break;
}
else
exportAsBRep.Add(new KeyValuePair<int, SimpleSweptSolidAnalyzer>(ii, null));
}
}
}
}
if (tryToExportAsSweptSolid)
{
int numCreatedSweptSolids = exportAsSweptSolid.Count;
for (int ii = 0; (ii < numCreatedSweptSolids) && tryToExportAsSweptSolid; ii++)
{
bool exported = false;
int geomIndex = exportAsSweptSolid[ii];
Solid solid = geometryList[geomIndex] as Solid;
SimpleSweptSolidAnalyzer simpleSweptSolidAnalyzer = null;
// TODO: allFaces to SweptSolid
if (solid != null)
{
// TODO: give normal hint below if we have an idea.
simpleSweptSolidAnalyzer = SweptSolidExporter.CanExportAsSweptSolid(exporterIFC, solid, null);
// If we are exporting as a BRep, we will keep the analyzer for later, if it isn't null.
if (simpleSweptSolidAnalyzer != null)
{
if (!tryToExportAsSweptSolidAsTessellation)
{
SweptSolidExporter sweptSolidExporter = SweptSolidExporter.Create(exporterIFC, element, simpleSweptSolidAnalyzer, solid);
IFCAnyHandle sweptHandle = (sweptSolidExporter != null) ? sweptSolidExporter.RepresentationItem : null;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(sweptHandle))
{
bodyItems.Add(sweptHandle);
materialIdsForExtrusions.Add(exporterIFC.GetMaterialIdForCurrentExportState());
exported = true;
hasRepresentationType = sweptSolidExporter.RepresentationType;
// These are the only two valid cases for true sweep export: either an extrusion or a sweep.
// We don't expect regular BReps or triangulated face sets here.
if (sweptSolidExporter.isSpecificRepresentationType(ShapeRepresentationType.SweptSolid))
hasExtrusions = true;
else if (sweptSolidExporter.isSpecificRepresentationType(ShapeRepresentationType.AdvancedSweptSolid))
hasSweptSolids = true;
}
else
simpleSweptSolidAnalyzer = null; // Didn't work for some reason.
}
}
}
if (!exported)
{
exportAsBRep.Add(new KeyValuePair<int, SimpleSweptSolidAnalyzer>(geomIndex, simpleSweptSolidAnalyzer));
hasSweptSolidsAsBReps |= (simpleSweptSolidAnalyzer != null);
}
}
}
bool exportSucceeded = (exportAsBRep.Count == 0) && (tryToExportAsExtrusion || tryToExportAsSweptSolid)
&& (hasExtrusions || hasSweptSolids || hasRepresentationType != ShapeRepresentationType.Undefined);
if (exportSucceeded || canExportSolidModelRep)
{
int sz = bodyItems.Count();
for (int ii = 0; ii < sz; ii++)
BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, document, bodyItems[ii], materialIdsForExtrusions[ii]);
if (exportSucceeded)
{
if (bodyData.RepresentationHnd == null)
{
HashSet<IFCAnyHandle> bodyItemSet = new HashSet<IFCAnyHandle>();
bodyItemSet.UnionWith(bodyItems);
if (hasExtrusions && !hasSweptSolids)
{
bodyData.RepresentationHnd =
RepresentationUtil.CreateSweptSolidRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet, bodyData.RepresentationHnd);
bodyData.ShapeRepresentationType = ShapeRepresentationType.SweptSolid;
}
else if (hasSweptSolids && !hasExtrusions)
{
bodyData.RepresentationHnd =
RepresentationUtil.CreateAdvancedSweptSolidRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet, bodyData.RepresentationHnd);
bodyData.ShapeRepresentationType = ShapeRepresentationType.AdvancedSweptSolid;
}
else if (hasRepresentationType == ShapeRepresentationType.Tessellation)
{
bodyData.RepresentationHnd =
RepresentationUtil.CreateTessellatedRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet, bodyData.RepresentationHnd);
bodyData.ShapeRepresentationType = ShapeRepresentationType.Tessellation;
}
else
{
bodyData.RepresentationHnd =
RepresentationUtil.CreateSolidModelRep(exporterIFC, element, categoryId, contextOfItems, bodyItemSet);
bodyData.ShapeRepresentationType = ShapeRepresentationType.SolidModel;
}
}
// TODO: include BRep, CSG, Clipping
XYZ lpOrig = ((bodyData != null) && (bodyData.OffsetTransform != null)) ? bodyData.OffsetTransform.Origin : new XYZ();
transformSetter.CreateLocalPlacementFromOffset(exporterIFC, bbox, exportBodyParams, lpOrig, unscaledTrfOrig);
tr.Commit();
return bodyData;
}
}
// If we are going to export a solid model, keep the created items.
if (!canExportSolidModelRep)
tr.RollBack();
else
tr.Commit();
}
// We couldn't export it as an extrusion; export as a solid, brep, or a surface model.
if (!canExportSolidModelRep)
{
exportAsExtrusion.Clear();
bodyItems.Clear();
if (exportBodyParams != null)
exportBodyParams.ClearOpenings();
}
if (exportAsExtrusion.Count == 0)
{
// We used to clear exportAsBRep, but we need the SimpleSweptSolidAnalyzer information, so we will fill out the rest.
int numGeoms = geometryList.Count;
IList<KeyValuePair<int, SimpleSweptSolidAnalyzer>> newExportAsBRep = new List<KeyValuePair<int, SimpleSweptSolidAnalyzer>>(numGeoms);
int exportAsBRepCount = exportAsBRep.Count;
int currIndex = 0;
for (int ii = 0; ii < numGeoms; ii++)
{
if ((currIndex < exportAsBRepCount) && (ii == exportAsBRep[currIndex].Key))
{
newExportAsBRep.Add(exportAsBRep[currIndex]);
currIndex++;
}
else
newExportAsBRep.Add(new KeyValuePair<int, SimpleSweptSolidAnalyzer>(ii, null));
}
exportAsBRep = newExportAsBRep;
}
}
// If we created some extrusions that we are using (e.g., creating a solid model), and we didn't use an offset transform for the extrusions, don't do it here either.
bool supportOffsetTransformForBreps = !hasSweptSolidsAsBReps;
bool disallowOffsetTransformForBreps = (exportAsExtrusion.Count > 0) && !useOffsetTransformForExtrusions;
bool useOffsetTransformForBReps = options.AllowOffsetTransform && supportOffsetTransformForBreps && !disallowOffsetTransformForBreps;
using (IFCTransaction tr = new IFCTransaction(file))
{
using (TransformSetter transformSetter = TransformSetter.Create())
{
// Need to do extra work to support offset transforms if we are using the sweep analyzer.
if (useOffsetTransformForBReps)
bodyData.OffsetTransform = transformSetter.InitializeFromBoundingBox(exporterIFC, bbox, exportBodyParams, out unscaledTrfOrig);
BodyData brepBodyData =
ExportBodyAsBRep(exporterIFC, geometryList, exportAsBRep, bodyItems, element, categoryId, overrideMaterialId, contextOfItems, eps, options, bodyData);
if (brepBodyData == null)
tr.RollBack();
else
{
XYZ lpOrig = ((bodyData != null) && (bodyData.OffsetTransform != null)) ? bodyData.OffsetTransform.Origin : new XYZ();
transformSetter.CreateLocalPlacementFromOffset(exporterIFC, bbox, exportBodyParams, lpOrig, unscaledTrfOrig);
tr.Commit();
}
return brepBodyData;
}
}
}
/// <summary>
/// Creates a SweptSolidExporter.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="element">The element.</param>
/// <param name="solid">The solid.</param>
/// <param name="normal">The normal of the plane that the path lies on.</param>
/// <returns>The SweptSolidExporter.</returns>
public static SweptSolidExporter Create(ExporterIFC exporterIFC, Element element, SimpleSweptSolidAnalyzer sweptAnalyzer, GeometryObject geomObject)
{
try
{
if (sweptAnalyzer == null)
return null;
SweptSolidExporter sweptSolidExporter = null;
IList<Revit.IFC.Export.Utility.GeometryUtil.FaceBoundaryType> faceBoundaryTypes;
IList<CurveLoop> faceBoundaries = GeometryUtil.GetFaceBoundaries(sweptAnalyzer.ProfileFace, null, out faceBoundaryTypes);
string profileName = null;
if (element != null)
{
ElementType type = element.Document.GetElement(element.GetTypeId()) as ElementType;
if (type != null)
profileName = type.Name;
}
// Is it really an extrusion?
if (sweptAnalyzer.PathCurve is Line)
{
Line line = sweptAnalyzer.PathCurve as Line;
// invalid case
if (MathUtil.VectorsAreOrthogonal(line.Direction, sweptAnalyzer.ProfileFace.FaceNormal))
return null;
sweptSolidExporter = new SweptSolidExporter();
sweptSolidExporter.RepresentationType = ShapeRepresentationType.SweptSolid;
Plane plane = new Plane(sweptAnalyzer.ProfileFace.FaceNormal, sweptAnalyzer.ProfileFace.Origin);
sweptSolidExporter.RepresentationItem = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, profileName, faceBoundaries, plane,
line.Direction, UnitUtil.ScaleLength(line.Length));
}
else
{
sweptSolidExporter = new SweptSolidExporter();
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
// Use tessellated geometry in IFC Reference View
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
// TODO: Create CreateSimpleSweptSolidAsTessellation routine that takes advantage of the superior tessellation of this class.
BodyExporterOptions options = new BodyExporterOptions(false);
sweptSolidExporter.RepresentationItem = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, element, options, geomObject);
sweptSolidExporter.RepresentationType = ShapeRepresentationType.Tessellation;
}
else
{
sweptSolidExporter.RepresentationItem = CreateSimpleSweptSolid(exporterIFC, profileName, faceBoundaries, sweptAnalyzer.ReferencePlaneNormal, sweptAnalyzer.PathCurve);
sweptSolidExporter.RepresentationType = ShapeRepresentationType.AdvancedSweptSolid;
}
}
else
{
sweptSolidExporter.Facets = CreateSimpleSweptSolidAsBRep(exporterIFC, profileName, faceBoundaries, sweptAnalyzer.ReferencePlaneNormal, sweptAnalyzer.PathCurve);
sweptSolidExporter.RepresentationType = ShapeRepresentationType.Brep;
}
}
return sweptSolidExporter;
}
catch (Exception)
{
return null;
}
}
/// <summary>
/// Exports list of solids and meshes to IFC body representation.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="categoryId">The category id.</param>
/// <param name="solids">The solids.</param>
/// <param name="meshes">The meshes.</param>
/// <param name="options">The settings for how to export the body.</param>
/// <param name="useMappedGeometriesIfPossible">If extrusions are not possible, and there is redundant geometry,
/// use a MappedRepresentation.</param>
/// <param name="useGroupsIfPossible">If extrusions are not possible, and the element is part of a group,
/// use the cached version if it exists, or create it.</param>
/// <param name="exportBodyParams">The extrusion creation data.</param>
/// <returns>The body data.</returns>
public static BodyData ExportBody(ExporterIFC exporterIFC,
Element element,
ElementId categoryId,
ElementId overrideMaterialId,
IList<Solid> solids,
IList<Mesh> meshes,
BodyExporterOptions options,
IFCExtrusionCreationData exportBodyParams)
{
IList<GeometryObject> objects = new List<GeometryObject>();
foreach (Solid solid in solids)
objects.Add(solid);
foreach (Mesh mesh in meshes)
objects.Add(mesh);
return ExportBody(exporterIFC, element, categoryId, overrideMaterialId, objects, options, exportBodyParams);
}
/// <summary>
/// Exports an element to IFC footing.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="element">
/// The element.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="ifcEnumType">
/// The string value represents the IFC type.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportFooting(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
string ifcEnumType, ProductWrapper productWrapper)
{
// export parts or not
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
{
return;
}
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum;
if (Enum.TryParse <Common.Enums.IFCEntityType>("IfcFooting", out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(setter.LocalPlacement);
IFCAnyHandle prodRep = null;
ElementId matId = ElementId.InvalidElementId;
if (!exportParts)
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
element, catId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
}
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, exporterIFC.GetFamilyName());
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string footingType = GetIFCFootingType(ifcEnumType); // need to keep it for legacy support when original data follows slightly diff naming
footingType = IFCValidateEntry.GetValidIFCType(element, footingType);
IFCAnyHandle footing = IFCInstanceExporter.CreateFooting(file, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
instanceName, instanceDescription, instanceObjectType, ecData.GetLocalPlacement(), prodRep, instanceTag, footingType);
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, element, footing, productWrapper, setter, setter.LocalPlacement, null);
}
else
{
if (matId != ElementId.InvalidElementId)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, footing, matId);
}
}
productWrapper.AddElement(element, footing, setter, ecData, true);
OpeningUtil.CreateOpeningsIfNecessary(footing, element, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
}
}
tr.Commit();
}
}
/// <summary>
/// Exports a geometry object to IFC body representation.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="categoryId">The category id.</param>
/// <param name="geometryObject">The geometry object.</param>
/// <param name="options">The settings for how to export the body.</param>
/// <param name="exportBodyParams">The extrusion creation data.</param>
/// <returns>The body data.</returns>
public static BodyData ExportBody(ExporterIFC exporterIFC,
Element element, ElementId categoryId, ElementId overrideMaterialId,
GeometryObject geometryObject, BodyExporterOptions options,
IFCExtrusionCreationData exportBodyParams)
{
IList<GeometryObject> geomList = new List<GeometryObject>();
if (geometryObject is Solid)
{
IList<Solid> splitVolumes = GeometryUtil.SplitVolumes(geometryObject as Solid);
foreach (Solid solid in splitVolumes)
geomList.Add(solid);
}
else
geomList.Add(geometryObject);
return ExportBody(exporterIFC, element, categoryId, overrideMaterialId, geomList, options, exportBodyParams);
}
/// <summary>
/// Exports a beam to IFC beam if it has an axis representation and only one Solid as its geometry, ideally as an extrusion, potentially with clippings and openings.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element to be exported.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <param name="dontExport">An output value that says that the element shouldn't be exported at all.</param>
/// <returns>The created handle.</returns>
/// <remarks>In the original implementation, the ExportBeam function would export each beam as its own individual geometry (that is, not use representation maps).
/// For non-standard beams, this could result in massive IFC files. Now, we use the ExportBeamAsStandardElement function and limit its scope, and instead
/// resort to the standard FamilyInstanceExporter.ExportFamilyInstanceAsMappedItem for more complicated objects categorized as beams. This has the following pros and cons:
/// Pro: possiblity for massively reduced file sizes for files containing repeated complex beam families
/// Con: some beams that may have had an "Axis" representation before will no longer have them, although this possibility is minimized.
/// Con: some beams that have 1 Solid and an axis, but that Solid will be heavily faceted, won't be helped by this improvement.
/// It is intended that we phase out this routine entirely and instead teach ExportFamilyInstanceAsMappedItem how to sometimes export the Axis representation for beams.</remarks>
public static IFCAnyHandle ExportBeamAsStandardElement(ExporterIFC exporterIFC,
Element element, GeometryElement geometryElement, ProductWrapper productWrapper, out bool dontExport)
{
dontExport = true;
IList <GeometryObject> geomObjects = BeamGeometryToExport(exporterIFC, element, geometryElement, out dontExport);
if (dontExport)
{
return(null);
}
IFCAnyHandle beam = null;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
BeamAxisInfo axisInfo = GetBeamAxisTransform(element);
bool canExportAxis = (axisInfo != null);
Curve curve = canExportAxis ? axisInfo.Axis : null;
XYZ beamDirection = canExportAxis ? axisInfo.AxisDirection : null;
Transform orientTrf = canExportAxis ? axisInfo.LCSAsTransform : null;
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, orientTrf))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(localPlacement);
if (canExportAxis && (orientTrf.BasisX != null))
{
extrusionCreationData.CustomAxis = beamDirection;
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryCustom;
}
else
{
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryXY;
}
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
// There may be an offset to make the local coordinate system
// be near the origin. This offset will be used to move the axis to the new LCS.
Transform offsetTransform = null;
// The list of materials in the solids or meshes.
ICollection <ElementId> materialIds = null;
// The representation handle generated from one of the methods below.
BeamBodyAsExtrusionInfo extrusionInfo = CreateBeamGeometryAsExtrusion(exporterIFC, element, catId, geomObjects, axisInfo);
if (extrusionInfo != null && extrusionInfo.DontExport)
{
dontExport = true;
return(null);
}
IFCAnyHandle repHnd = (extrusionInfo != null) ? extrusionInfo.RepresentationHandle : null;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
materialIds = extrusionInfo.Materials;
extrusionCreationData.Slope = extrusionInfo.Slope;
}
else
{
// Here is where we limit the scope of how complex a case we will still try to export as a standard element.
// This is explicitly added so that many curved beams that can be represented by a reasonable facetation because of the
// SweptSolidExporter can still have an Axis representation.
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
if (geomObjects != null && geomObjects.Count == 1 && geomObjects[0] is Solid)
{
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId,
geomObjects[0], bodyExporterOptions, extrusionCreationData);
repHnd = bodyData.RepresentationHnd;
materialIds = bodyData.MaterialIds;
offsetTransform = bodyData.OffsetTransform;
}
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
extrusionCreationData.ClearOpenings();
return(null);
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
IFCAnyHandle axisRep = CreateBeamAxis(exporterIFC, element, catId, axisInfo, offsetTransform);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(axisRep))
{
representations.Add(axisRep);
}
representations.Add(repHnd);
Transform boundingBoxTrf = (offsetTransform == null) ? Transform.Identity : offsetTransform.Inverse;
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, boundingBoxTrf);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, NamingUtil.CreateIFCObjectName(exporterIFC, element));
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string preDefinedType = "BEAM"; // Default predefined type for Beam
preDefinedType = IFCValidateEntry.GetValidIFCType(element, preDefinedType);
beam = IFCInstanceExporter.CreateBeam(file, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
instanceName, instanceDescription, instanceObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, instanceTag, preDefinedType);
productWrapper.AddElement(element, beam, setter, extrusionCreationData, true);
OpeningUtil.CreateOpeningsIfNecessary(beam, element, extrusionCreationData, offsetTransform, exporterIFC,
extrusionCreationData.GetLocalPlacement(), setter, productWrapper);
FamilyTypeInfo typeInfo = new FamilyTypeInfo();
typeInfo.ScaledDepth = extrusionCreationData.ScaledLength;
typeInfo.ScaledArea = extrusionCreationData.ScaledArea;
typeInfo.ScaledInnerPerimeter = extrusionCreationData.ScaledInnerPerimeter;
typeInfo.ScaledOuterPerimeter = extrusionCreationData.ScaledOuterPerimeter;
PropertyUtil.CreateBeamColumnBaseQuantities(exporterIFC, beam, element, typeInfo, null);
if (materialIds.Count != 0)
{
CategoryUtil.CreateMaterialAssociations(exporterIFC, beam, materialIds);
}
// Register the beam's IFC handle for later use by truss and beam system export.
ExporterCacheManager.ElementToHandleCache.Register(element.Id, beam);
}
}
transaction.Commit();
return(beam);
}
}
/// <summary>
/// Exports a geometry object to IFC body representation.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="categoryId">The category id.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="options">The settings for how to export the body.</param>
/// <param name="exportBodyParams">The extrusion creation data.</param>
/// <param name="offsetTransform">The transform used to shift the body to the local origin.</param>
/// <returns>The body data.</returns>
public static BodyData ExportBody(ExporterIFC exporterIFC,
Element element, ElementId categoryId, ElementId overrideMaterialId,
GeometryElement geometryElement, BodyExporterOptions options,
IFCExtrusionCreationData exportBodyParams)
{
SolidMeshGeometryInfo info = null;
IList<GeometryObject> geomList = new List<GeometryObject>();
if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
{
info = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
IList<Mesh> meshes = info.GetMeshes();
if (meshes.Count == 0)
{
IList<Solid> solidList = info.GetSolids();
foreach (Solid solid in solidList)
{
geomList.Add(solid);
}
}
}
if (geomList.Count == 0)
geomList.Add(geometryElement);
return ExportBody(exporterIFC, element, categoryId, overrideMaterialId, geomList,
options, exportBodyParams);
}
/// <summary>
/// Exports a CeilingAndFloor element to IFC.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="floor">The floor element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportCeilingAndFloorElement(ExporterIFC exporterIFC, CeilingAndFloor floorElement, GeometryElement geometryElement,
ProductWrapper productWrapper)
{
if (geometryElement == null)
{
return;
}
// export parts or not
bool exportParts = PartExporter.CanExportParts(floorElement);
if (exportParts && !PartExporter.CanExportElementInPartExport(floorElement, floorElement.LevelId, false))
{
return;
}
IFCFile file = exporterIFC.GetFile();
string ifcEnumType;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, floorElement, out ifcEnumType);
IFCAnyHandle type = null;
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum;
if (Enum.TryParse <Common.Enums.IFCEntityType>(exportType.ToString(), out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
string predefinedType = null;
using (IFCTransaction tr = new IFCTransaction(file))
{
bool canExportAsContainerOrWithExtrusionAnalyzer = (!exportParts && (floorElement is Floor));
if (canExportAsContainerOrWithExtrusionAnalyzer)
{
// Try to export the Floor slab as a container. If that succeeds, we are done.
// If we do export the floor as a container, it will take care of the local placement and transform there, so we need to leave
// this out of the IFCTransformSetter and PlacementSetter scopes below, or else we'll get double transforms.
IFCAnyHandle floorHnd = RoofExporter.ExportRoofOrFloorAsContainer(exporterIFC, ifcEnumType, floorElement, geometryElement, productWrapper);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(floorHnd))
{
tr.Commit();
return;
}
}
IList <IFCAnyHandle> slabHnds = new List <IFCAnyHandle>();
IList <IFCAnyHandle> brepSlabHnds = new List <IFCAnyHandle>();
IList <IFCAnyHandle> nonBrepSlabHnds = new List <IFCAnyHandle>();
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, floorElement))
{
IFCAnyHandle localPlacement = placementSetter.LocalPlacement;
// The routine ExportExtrudedSlabOpenings is called if exportedAsInternalExtrusion is true, and it requires having a valid level association.
// Disable calling ExportSlabAsExtrusion if we can't handle potential openings.
bool canExportAsInternalExtrusion = placementSetter.LevelInfo != null;
bool exportedAsInternalExtrusion = false;
ElementId catId = CategoryUtil.GetSafeCategoryId(floorElement);
IList <IFCAnyHandle> prodReps = new List <IFCAnyHandle>();
IList <ShapeRepresentationType> repTypes = new List <ShapeRepresentationType>();
IList <IList <CurveLoop> > extrusionLoops = new List <IList <CurveLoop> >();
IList <IFCExtrusionCreationData> loopExtraParams = new List <IFCExtrusionCreationData>();
Plane floorPlane = GeometryUtil.CreateDefaultPlane();
IList <IFCAnyHandle> localPlacements = new List <IFCAnyHandle>();
if (canExportAsContainerOrWithExtrusionAnalyzer)
{
Floor floor = floorElement as Floor;
// Next, try to use the ExtrusionAnalyzer for the limited cases it handles - 1 solid, no openings, end clippings only.
// Also limited to cases with line and arc boundaries.
//
SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
if (solids.Count == 1 && meshes.Count == 0)
{
bool completelyClipped;
// floorExtrusionDirection is set to (0, 0, -1) because extrusionAnalyzerFloorPlane is computed from the top face of the floor
XYZ floorExtrusionDirection = new XYZ(0, 0, -1);
XYZ modelOrigin = XYZ.Zero;
XYZ floorOrigin = floor.GetVerticalProjectionPoint(modelOrigin, FloorFace.Top);
if (floorOrigin == null)
{
// GetVerticalProjectionPoint may return null if FloorFace.Top is an edited face that doesn't
// go through the Revit model origin. We'll try the midpoint of the bounding box instead.
BoundingBoxXYZ boundingBox = floorElement.get_BoundingBox(null);
modelOrigin = (boundingBox.Min + boundingBox.Max) / 2.0;
floorOrigin = floor.GetVerticalProjectionPoint(modelOrigin, FloorFace.Top);
}
if (floorOrigin != null)
{
XYZ floorDir = floor.GetNormalAtVerticalProjectionPoint(floorOrigin, FloorFace.Top);
Plane extrusionAnalyzerFloorBasePlane = GeometryUtil.CreatePlaneByNormalAtOrigin(floorDir);
GenerateAdditionalInfo additionalInfo = ExporterCacheManager.ExportOptionsCache.ExportAs4 ? GenerateAdditionalInfo.GenerateFootprint : GenerateAdditionalInfo.None;
HandleAndData floorAndProperties =
ExtrusionExporter.CreateExtrusionWithClippingAndProperties(exporterIFC, floorElement,
catId, solids[0], extrusionAnalyzerFloorBasePlane, floorOrigin, floorExtrusionDirection, null, out completelyClipped,
addInfo: additionalInfo);
if (completelyClipped)
{
return;
}
if (floorAndProperties.Handle != null)
{
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(floorAndProperties.Handle);
// Footprint representation will only be exported in export to IFC4
if (((additionalInfo & GenerateAdditionalInfo.GenerateFootprint) != 0) && (floorAndProperties.FootprintInfo != null))
{
if (!(IFCAnyHandleUtil.IsNullOrHasNoValue(floorAndProperties.FootprintInfo.FootPrintHandle)))
{
representations.Add(floorAndProperties.FootprintInfo.FootPrintHandle);
}
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
prodReps.Add(prodRep);
repTypes.Add(ShapeRepresentationType.SweptSolid);
if (floorAndProperties.Data != null)
{
loopExtraParams.Add(floorAndProperties.Data);
}
}
}
}
}
// Use internal routine as backup that handles openings.
if (prodReps.Count == 0 && canExportAsInternalExtrusion && !ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
//IList<IFCAnyHandle> prodRepsTmp = new List<IFCAnyHandle>();
exportedAsInternalExtrusion = ExporterIFCUtils.ExportSlabAsExtrusion(exporterIFC, floorElement,
geometryElement, transformSetter, localPlacement, out localPlacements, out prodReps,
out extrusionLoops, out loopExtraParams, floorPlane);
for (int ii = 0; ii < prodReps.Count; ii++)
{
// all are extrusions
repTypes.Add(ShapeRepresentationType.SweptSolid);
// Footprint representation will only be exported in export to IFC4
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
if (extrusionLoops.Count > ii)
{
if (extrusionLoops[ii].Count > 0)
{
// Get the extrusion footprint using the first Curveloop. Transform needs to be obtained from the returned local placement
Transform lcs = ExporterIFCUtils.GetUnscaledTransform(exporterIFC, localPlacements[ii]);
IFCAnyHandle footprintGeomRepItem = GeometryUtil.CreateIFCCurveFromCurveLoop(exporterIFC, extrusionLoops[ii][0], lcs, floorPlane.Normal);
IFCAnyHandle contextOfItemsFootprint = exporterIFC.Get3DContextHandle("FootPrint");
ISet <IFCAnyHandle> repItem = new HashSet <IFCAnyHandle>();
repItem.Add(footprintGeomRepItem);
IFCAnyHandle footprintShapeRepresentation = RepresentationUtil.CreateBaseShapeRepresentation(exporterIFC, contextOfItemsFootprint, "FootPrint", "Curve2D", repItem);
//representations.Add(footprintShapeRepresentation);
IList <IFCAnyHandle> reps = new List <IFCAnyHandle>();
reps.Add(footprintShapeRepresentation);
IFCAnyHandleUtil.AddRepresentations(prodReps[ii], reps);
}
}
}
}
}
if (prodReps.Count == 0)
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
// Brep representation using tesellation after ExportSlabAsExtrusion does not return prodReps
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.Medium);
BodyData bodyData;
IFCAnyHandle prodDefHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
floorElement, catId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd))
{
ecData.ClearOpenings();
return;
}
prodReps.Add(prodDefHnd);
repTypes.Add(bodyData.ShapeRepresentationType);
}
}
// Create the slab from either the extrusion or the BRep information.
string ifcGUID = GUIDUtil.CreateGUID(floorElement);
int numReps = exportParts ? 1 : prodReps.Count;
switch (exportType.ExportInstance)
{
case IFCEntityType.IfcFooting:
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
predefinedType = IFCValidateEntry.GetValidIFCType <Revit.IFC.Export.Toolkit.IFC4.IFCFootingType>(floorElement, ifcEnumType, null);
}
else
{
predefinedType = IFCValidateEntry.GetValidIFCType <IFCFootingType>(floorElement, ifcEnumType, null);
}
break;
case IFCEntityType.IfcCovering:
predefinedType = IFCValidateEntry.GetValidIFCType <IFCCoveringType>(floorElement, ifcEnumType, "FLOORING");
break;
case IFCEntityType.IfcRamp:
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
predefinedType = IFCValidateEntry.GetValidIFCType <Revit.IFC.Export.Toolkit.IFC4.IFCRampType>(floorElement, ifcEnumType, null);
}
else
{
predefinedType = IFCValidateEntry.GetValidIFCType <IFCRampType>(floorElement, ifcEnumType, null);
}
break;
default:
bool isBaseSlab = false;
AnalyticalModel analyticalModel = floorElement.GetAnalyticalModel();
if (analyticalModel != null)
{
AnalyzeAs slabFoundationType = analyticalModel.GetAnalyzeAs();
isBaseSlab = (slabFoundationType == AnalyzeAs.SlabOnGrade) || (slabFoundationType == AnalyzeAs.Mat);
}
predefinedType = IFCValidateEntry.GetValidIFCType <IFCSlabType>(floorElement, ifcEnumType, isBaseSlab ? "BASESLAB" : "FLOOR");
break;
}
for (int ii = 0; ii < numReps; ii++)
{
string ifcName = NamingUtil.GetNameOverride(floorElement, NamingUtil.GetIFCNamePlusIndex(floorElement, ii == 0 ? -1 : ii + 1));
string currentGUID = (ii == 0) ? ifcGUID : GUIDUtil.CreateGUID();
IFCAnyHandle localPlacementHnd = exportedAsInternalExtrusion ? localPlacements[ii] : localPlacement;
IFCAnyHandle slabHnd = null;
slabHnd = IFCInstanceExporter.CreateGenericIFCEntity(exportType, exporterIFC, floorElement, currentGUID, ownerHistory,
localPlacementHnd, exportParts ? null : prodReps[ii]);
if (!string.IsNullOrEmpty(ifcName))
{
IFCAnyHandleUtil.SetAttribute(slabHnd, "Name", ifcName);
}
if (!string.IsNullOrEmpty(predefinedType))
{
IFCAnyHandleUtil.SetAttribute(slabHnd, "PredefinedType", predefinedType, true);
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd))
{
return;
}
IFCAnyHandleUtil.SetAttribute(slabHnd, "Name", ifcName);
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, floorElement, slabHnd, productWrapper, placementSetter, localPlacementHnd, null);
}
slabHnds.Add(slabHnd);
if (!exportParts)
{
if (repTypes[ii] == ShapeRepresentationType.Brep || repTypes[ii] == ShapeRepresentationType.Tessellation)
{
brepSlabHnds.Add(slabHnd);
}
else
{
nonBrepSlabHnds.Add(slabHnd);
}
}
}
for (int ii = 0; ii < numReps; ii++)
{
IFCExtrusionCreationData loopExtraParam = ii < loopExtraParams.Count ? loopExtraParams[ii] : null;
productWrapper.AddElement(floorElement, slabHnds[ii], placementSetter, loopExtraParam, true);
type = ExporterUtil.CreateGenericTypeFromElement(floorElement, exportType, file, ownerHistory, predefinedType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(type, slabHnds[ii]);
}
// This call to the native function appears to create Brep opening also when appropriate. But the creation of the IFC instances is not
// controllable from the managed code. Therefore in some cases BRep geometry for Opening will still be exported even in the Reference View
if (exportedAsInternalExtrusion)
{
ExporterIFCUtils.ExportExtrudedSlabOpenings(exporterIFC, floorElement, placementSetter.LevelInfo,
localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper.ToNative());
}
}
if (!exportParts)
{
if (nonBrepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, floorElement, nonBrepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, false, type);
}
if (brepSlabHnds.Count > 0)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, floorElement, brepSlabHnds,
geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, true, type);
}
}
}
tr.Commit();
return;
}
}
/// <summary>
/// Exports a roof to IfcRoof.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="roof">The roof element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <param name="exportRoofAsSingleGeometry">Export roof as single geometry.</param>
public static void ExportRoof(ExporterIFC exporterIFC, Element roof, ref GeometryElement geometryElement,
ProductWrapper productWrapper, bool exportRoofAsSingleGeometry = false)
{
if (roof == null || geometryElement == null)
{
return;
}
string ifcEnumType;
IFCExportInfoPair roofExportType = ExporterUtil.GetProductExportType(exporterIFC, roof, out ifcEnumType);
if (roofExportType.IsUnKnown)
{
roofExportType = new IFCExportInfoPair(IFCEntityType.IfcRoof, "");
}
MaterialLayerSetInfo layersetInfo = new MaterialLayerSetInfo(exporterIFC, roof, productWrapper);
IFCFile file = exporterIFC.GetFile();
Document doc = roof.Document;
using (SubTransaction tempPartTransaction = new SubTransaction(doc))
{
// For IFC4RV export, Roof will be split into its parts(temporarily) in order to export the roof by its parts
ExporterUtil.CreateParts(roof, layersetInfo.MaterialIds.Count, ref geometryElement);
bool exportByComponents = ExporterUtil.CanExportByComponentsOrParts(roof) == ExporterUtil.ExportPartAs.ShapeAspect;
using (IFCTransaction tr = new IFCTransaction(file))
{
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, roof, out overrideContainerHnd);
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, roof, null, null, overrideContainerId, overrideContainerHnd))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
// If the roof is an in-place family, we will allow any arbitrary orientation. While this may result in some
// in-place "cubes" exporting with the wrong direction, it is unlikely that an in-place family would be
// used for this reason in the first place.
ecData.PossibleExtrusionAxes = (roof is FamilyInstance) ? IFCExtrusionAxes.TryXYZ : IFCExtrusionAxes.TryZ;
ecData.AreInnerRegionsOpenings = true;
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(roof);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
BodyData bodyData = null;
IFCAnyHandle prodRep = null;
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
IList <ElementId> materialIds = new List <ElementId>();
if (!exportByComponents)
{
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, roof,
categoryId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (bodyData != null && bodyData.MaterialIds != null)
{
materialIds = bodyData.MaterialIds;
}
}
else
{
prodRep = RepresentationUtil.CreateProductDefinitionShapeWithoutBodyRep(exporterIFC, roof, categoryId, geometryElement, representations);
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
bool exportSlab = ((ecData.ScaledLength > MathUtil.Eps() || exportByComponents) &&
roofExportType.ExportInstance == IFCEntityType.IfcRoof && !exportRoofAsSingleGeometry);
string guid = GUIDUtil.CreateGUID(roof);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
IFCAnyHandle roofHnd = IFCInstanceExporter.CreateGenericIFCEntity(
roofExportType, exporterIFC, roof, guid, ownerHistory,
localPlacement, exportSlab ? null : prodRep);
IFCAnyHandle typeHnd = ExporterUtil.CreateGenericTypeFromElement(roof,
roofExportType, file, ownerHistory, roofExportType.ValidatedPredefinedType,
productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(typeHnd, roofHnd);
productWrapper.AddElement(roof, roofHnd, placementSetter.LevelInfo, ecData, true, roofExportType);
if (!(roof is RoofBase))
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, roofHnd, materialIds);
}
if (exportByComponents && (exportSlab || exportRoofAsSingleGeometry))
{
IFCAnyHandle hostShapeRepFromParts = PartExporter.ExportHostPartAsShapeAspects(exporterIFC, roof, prodRep,
productWrapper, placementSetter, localPlacement, ElementId.InvalidElementId, layersetInfo, ecData);
}
Transform offsetTransform = (bodyData != null) ? bodyData.OffsetTransform : Transform.Identity;
if (exportSlab)
{
string slabGUID = GUIDUtil.CreateSubElementGUID(roof, (int)IFCRoofSubElements.RoofSlabStart);
IFCAnyHandle slabLocalPlacementHnd = ExporterUtil.CopyLocalPlacement(file, localPlacement);
string slabName = IFCAnyHandleUtil.GetStringAttribute(roofHnd, "Name") + ":1";
IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(exporterIFC, roof, slabGUID, ownerHistory,
slabLocalPlacementHnd, prodRep, slabRoofPredefinedType);
IFCAnyHandleUtil.OverrideNameAttribute(slabHnd, slabName);
OpeningUtil.CreateOpeningsIfNecessary(slabHnd, roof, ecData, offsetTransform,
exporterIFC, slabLocalPlacementHnd, placementSetter, productWrapper);
ExporterUtil.RelateObject(exporterIFC, roofHnd, slabHnd);
IFCExportInfoPair slabRoofExportType = new IFCExportInfoPair(IFCEntityType.IfcSlab, slabRoofPredefinedType);
productWrapper.AddElement(null, slabHnd, placementSetter.LevelInfo, ecData, false, slabRoofExportType);
// Create type
IFCAnyHandle slabRoofTypeHnd = ExporterUtil.CreateGenericTypeFromElement(roof, slabRoofExportType, exporterIFC.GetFile(), ownerHistory, slabRoofPredefinedType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(slabRoofTypeHnd, slabHnd);
ExporterUtil.AddIntoComplexPropertyCache(slabHnd, layersetInfo);
// For earlier than IFC4 version of IFC export, the material association will be done at the Roof host level with MaterialSetUsage
// This one is only for IFC4 and above
if ((roof is RoofBase) && !ExporterCacheManager.ExportOptionsCache.ExportAsOlderThanIFC4)
{
if (layersetInfo != null && !IFCAnyHandleUtil.IsNullOrHasNoValue(layersetInfo.MaterialLayerSetHandle))
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, layersetInfo.MaterialLayerSetHandle);
}
else if (bodyData != null)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, bodyData.MaterialIds);
}
}
}
else
{
OpeningUtil.CreateOpeningsIfNecessary(roofHnd, roof, ecData, offsetTransform,
exporterIFC, localPlacement, placementSetter, productWrapper);
// For earlier than IFC4 version of IFC export, the material association will be done at the Roof host level with MaterialSetUsage
// This one is only for IFC4 and above
if ((roof is RoofBase) && !ExporterCacheManager.ExportOptionsCache.ExportAsOlderThanIFC4)
{
if (layersetInfo != null && !IFCAnyHandleUtil.IsNullOrHasNoValue(layersetInfo.MaterialLayerSetHandle))
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, roofHnd, layersetInfo.MaterialLayerSetHandle);
}
else if (layersetInfo != null && layersetInfo.MaterialIds != null)
{
materialIds = layersetInfo.MaterialIds.Select(x => x.m_baseMatId).ToList();
CategoryUtil.CreateMaterialAssociation(exporterIFC, roofHnd, materialIds);
}
}
}
}
tr.Commit();
}
}
}
}
/// <summary>
/// Exports a ramp to IfcRamp, without decomposing into separate runs and landings.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="ifcEnumType">The ramp type.</param>
/// <param name="ramp">The ramp element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="numFlights">The number of flights for a multistory ramp.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportRamp(ExporterIFC exporterIFC, string ifcEnumType, Element ramp, GeometryElement geometryElement,
int numFlights, ProductWrapper productWrapper)
{
if (ramp == null || geometryElement == null)
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, ramp))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ecData.ReuseLocalPlacement = false;
GeometryElement rampGeom = GeometryUtil.GetOneLevelGeometryElement(geometryElement, numFlights);
BodyData bodyData;
ElementId categoryId = CategoryUtil.GetSafeCategoryId(ramp);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions();
IFCAnyHandle representation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
ramp, categoryId, rampGeom, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(representation))
{
ecData.ClearOpenings();
return;
}
string containedRampGuid = GUIDUtil.CreateSubElementGUID(ramp, (int)IFCRampSubElements.ContainedRamp);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string rampName = NamingUtil.GetNameOverride(ramp, NamingUtil.GetIFCName(ramp));
string rampDescription = NamingUtil.GetDescriptionOverride(ramp, null);
string rampObjectType = NamingUtil.GetObjectTypeOverride(ramp, NamingUtil.CreateIFCObjectName(exporterIFC, ramp));
IFCAnyHandle containedRampLocalPlacement = ExporterUtil.CreateLocalPlacement(file, ecData.GetLocalPlacement(), null);
string elementTag = NamingUtil.GetTagOverride(ramp, NamingUtil.CreateIFCElementId(ramp));
string rampType = GetIFCRampType(ifcEnumType);
List <IFCAnyHandle> components = new List <IFCAnyHandle>();
IList <IFCExtrusionCreationData> componentExtrusionData = new List <IFCExtrusionCreationData>();
IFCAnyHandle containedRampHnd = IFCInstanceExporter.CreateRamp(file, containedRampGuid, ownerHistory, rampName,
rampDescription, rampObjectType, containedRampLocalPlacement, representation, elementTag, rampType);
components.Add(containedRampHnd);
componentExtrusionData.Add(ecData);
//productWrapper.AddElement(containedRampHnd, placementSetter.LevelInfo, ecData, false);
CategoryUtil.CreateMaterialAssociations(exporterIFC, containedRampHnd, bodyData.MaterialIds);
string guid = GUIDUtil.CreateGUID(ramp);
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
IFCAnyHandle rampHnd = IFCInstanceExporter.CreateRamp(file, guid, ownerHistory, rampName,
rampDescription, rampObjectType, localPlacement, null, elementTag, rampType);
productWrapper.AddElement(ramp, rampHnd, placementSetter.LevelInfo, ecData, true);
StairRampContainerInfo stairRampInfo = new StairRampContainerInfo(rampHnd, components, localPlacement);
ExporterCacheManager.StairRampContainerInfoCache.AddStairRampContainerInfo(ramp.Id, stairRampInfo);
ExportMultistoryRamp(exporterIFC, ramp, numFlights, rampHnd, components, componentExtrusionData, placementSetter,
productWrapper);
}
tr.Commit();
}
}
}
private static HandleAndAnalyzer CreateExtrusionWithClippingBase(ExporterIFC exporterIFC, Element element,
ElementId catId, IList<Solid> solids, Plane plane, XYZ projDir, IFCRange range, out bool completelyClipped, out HashSet<ElementId> materialIds)
{
IFCFile file = exporterIFC.GetFile();
bool mustUseTessellation = false;
using (IFCTransaction tr = new IFCTransaction(file))
{
completelyClipped = false;
materialIds = new HashSet<ElementId>();
HandleAndAnalyzer retVal = new HandleAndAnalyzer();
HashSet<IFCAnyHandle> extrusionBodyItems = new HashSet<IFCAnyHandle>();
HashSet<IFCAnyHandle> extrusionBooleanBodyItems = new HashSet<IFCAnyHandle>();
HashSet<IFCAnyHandle> extrusionClippingBodyItems = new HashSet<IFCAnyHandle>();
foreach (Solid solid in solids)
{
bool hasClippingResult = false;
bool hasBooleanResult = false;
ElementId materialId = ElementId.InvalidElementId;
HandleAndAnalyzer currRetVal = CreateExtrusionWithClippingAndOpening(exporterIFC, element, catId, solid, plane, projDir, range,
out completelyClipped, out hasClippingResult, out hasBooleanResult, out materialId);
if (currRetVal != null && currRetVal.Handle != null)
{
// If any of the solid is of the type of Clipping or Boolean and export is for Reference View, exit the loop and collect the geometries entirely
// for TriangulatedFaceSet
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView && (hasClippingResult || hasBooleanResult))
{
mustUseTessellation = true;
break;
}
materialIds.Add(materialId);
IFCAnyHandle repHandle = currRetVal.Handle;
if (hasBooleanResult) // if both have boolean and clipping result, use boolean one.
extrusionBooleanBodyItems.Add(repHandle);
else if (hasClippingResult)
extrusionClippingBodyItems.Add(repHandle);
else
extrusionBodyItems.Add(repHandle);
}
else
{
tr.RollBack();
// TODO: include this cleanup in RollBack(), to avoid issues.
ExporterCacheManager.MaterialIdToStyleHandleCache.RemoveInvalidHandles(materialIds, IFCEntityType.IfcSurfaceStyle);
ExporterCacheManager.PresentationStyleAssignmentCache.RemoveInvalidHandles(materialIds);
return retVal;
}
// currRetVal will only have one extrusion. Use the analyzer from the "last" extrusion. Should only really be used for one extrusion.
retVal.Analyzer = currRetVal.Analyzer;
retVal.BaseExtrusions.Add(currRetVal.BaseExtrusions[0]);
}
IFCAnyHandle contextOfItemsBody = exporterIFC.Get3DContextHandle("Body");
// Handle Tessellation here for Reference View export. If all are extrusions, it should not get in here
if (mustUseTessellation)
{
BodyExporterOptions options = new BodyExporterOptions(true);
Document document = element.Document;
ElementId materialId = ElementId.InvalidElementId;
materialIds.Clear();
extrusionBodyItems.Clear();
foreach (Solid solid in solids)
{
IFCAnyHandle triangulatedBodyItem = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, element, options, solid);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(triangulatedBodyItem))
extrusionBodyItems.Add(triangulatedBodyItem);
materialId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(solid, exporterIFC, element);
materialIds.Add(materialId);
BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, document, triangulatedBodyItem, materialId);
}
retVal.Handle = RepresentationUtil.CreateTessellatedRep(exporterIFC, element, catId, contextOfItemsBody, extrusionBodyItems, null);
retVal.ShapeRepresentationType = ShapeRepresentationType.Tessellation;
}
else
{
if (extrusionBodyItems.Count > 0 && (extrusionClippingBodyItems.Count == 0 && extrusionBooleanBodyItems.Count == 0))
{
retVal.Handle = RepresentationUtil.CreateSweptSolidRep(exporterIFC, element, catId, contextOfItemsBody,
extrusionBodyItems, null);
retVal.ShapeRepresentationType = ShapeRepresentationType.SweptSolid;
}
else if (extrusionClippingBodyItems.Count > 0 && (extrusionBodyItems.Count == 0 && extrusionBooleanBodyItems.Count == 0))
{
retVal.Handle = RepresentationUtil.CreateClippingRep(exporterIFC, element, catId, contextOfItemsBody,
extrusionClippingBodyItems);
retVal.ShapeRepresentationType = ShapeRepresentationType.Clipping;
}
else if (extrusionBooleanBodyItems.Count > 0 && (extrusionBodyItems.Count == 0 && extrusionClippingBodyItems.Count == 0))
{
retVal.Handle = RepresentationUtil.CreateCSGRep(exporterIFC, element, catId, contextOfItemsBody,
extrusionBooleanBodyItems);
retVal.ShapeRepresentationType = ShapeRepresentationType.CSG;
}
else
{
IFCAnyHandle finalBodyItemHnd = null;
ICollection<IFCAnyHandle> booleanBodyItems = extrusionClippingBodyItems.Union<IFCAnyHandle>(extrusionBooleanBodyItems).ToList();
finalBodyItemHnd = booleanBodyItems.ElementAt(0);
booleanBodyItems.Remove(finalBodyItemHnd);
// union non-boolean result first with a boolean result
foreach (IFCAnyHandle bodyRep in extrusionBodyItems)
{
finalBodyItemHnd = IFCInstanceExporter.CreateBooleanResult(exporterIFC.GetFile(), IFCBooleanOperator.Union,
finalBodyItemHnd, bodyRep);
}
foreach (IFCAnyHandle bodyRep in booleanBodyItems)
{
finalBodyItemHnd = IFCInstanceExporter.CreateBooleanResult(exporterIFC.GetFile(), IFCBooleanOperator.Union,
finalBodyItemHnd, bodyRep);
}
extrusionBodyItems.Clear();
extrusionBodyItems.Add(finalBodyItemHnd);
retVal.Handle = RepresentationUtil.CreateCSGRep(exporterIFC, element, catId, contextOfItemsBody,
extrusionBodyItems);
retVal.ShapeRepresentationType = ShapeRepresentationType.CSG;
}
}
tr.Commit();
return retVal;
}
}
/// <summary>
/// Exports a roof to IfcRoof.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="ifcEnumType">The roof type.</param>
/// <param name="roof">The roof element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportRoof(ExporterIFC exporterIFC, string ifcEnumType, Element roof, GeometryElement geometryElement,
ProductWrapper productWrapper)
{
if (roof == null || geometryElement == null)
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, roof))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
// If the roof is an in-place family, we will allow any arbitrary orientation. While this may result in some
// in-place "cubes" exporting with the wrong direction, it is unlikely that an in-place family would be
// used for this reason in the first place.
ecData.PossibleExtrusionAxes = (roof is FamilyInstance) ? IFCExtrusionAxes.TryXYZ : IFCExtrusionAxes.TryZ;
ecData.AreInnerRegionsOpenings = true;
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(roof);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
BodyData bodyData;
IFCAnyHandle representation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, roof,
categoryId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(representation))
{
ecData.ClearOpenings();
return;
}
bool exportSlab = ecData.ScaledLength > MathUtil.Eps();
string guid = GUIDUtil.CreateGUID(roof);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string roofName = NamingUtil.GetNameOverride(roof, NamingUtil.GetIFCName(roof));
string roofDescription = NamingUtil.GetDescriptionOverride(roof, null);
string roofObjectType = NamingUtil.GetObjectTypeOverride(roof, NamingUtil.CreateIFCObjectName(exporterIFC, roof));
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
string elementTag = NamingUtil.GetTagOverride(roof, NamingUtil.CreateIFCElementId(roof));
string roofType = GetIFCRoofType(ifcEnumType);
roofType = IFCValidateEntry.GetValidIFCType(roof, ifcEnumType);
IFCAnyHandle roofHnd = IFCInstanceExporter.CreateRoof(file, guid, ownerHistory, roofName, roofDescription,
roofObjectType, localPlacement, exportSlab ? null : representation, elementTag, roofType);
productWrapper.AddElement(roof, roofHnd, placementSetter.LevelInfo, ecData, true);
// will export its host object materials later if it is a roof
if (!(roof is RoofBase))
{
CategoryUtil.CreateMaterialAssociations(exporterIFC, roofHnd, bodyData.MaterialIds);
}
if (exportSlab)
{
string slabGUID = GUIDUtil.CreateSubElementGUID(roof, (int)IFCRoofSubElements.RoofSlabStart);
string slabName = roofName + ":1";
IFCAnyHandle slabLocalPlacementHnd = ExporterUtil.CopyLocalPlacement(file, localPlacement);
IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(file, slabGUID, ownerHistory, slabName,
roofDescription, roofObjectType, slabLocalPlacementHnd, representation, elementTag, "ROOF");
Transform offsetTransform = (bodyData != null) ? bodyData.OffsetTransform : Transform.Identity;
OpeningUtil.CreateOpeningsIfNecessary(slabHnd, roof, ecData, offsetTransform,
exporterIFC, slabLocalPlacementHnd, placementSetter, productWrapper);
ExporterUtil.RelateObject(exporterIFC, roofHnd, slabHnd);
productWrapper.AddElement(null, slabHnd, placementSetter.LevelInfo, ecData, false);
CategoryUtil.CreateMaterialAssociations(exporterIFC, slabHnd, bodyData.MaterialIds);
}
}
tr.Commit();
}
}
}
/// <summary>
/// Exports an element as IFC covering.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element to be exported.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportCovering(ExporterIFC exporterIFC, Element element, GeometryElement geomElem, string ifcEnumType, ProductWrapper productWrapper)
{
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
return;
ElementType elemType = element.Document.GetElement(element.GetTypeId()) as ElementType;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
IFCAnyHandle prodRep = null;
if (!exportParts)
{
ecData.SetLocalPlacement(setter.LocalPlacement);
ecData.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, element,
categoryId, geomElem, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
}
// We will use the category of the element to set a default value for the covering.
string defaultCoveringEnumType = null;
if (categoryId == new ElementId(BuiltInCategory.OST_Ceilings))
defaultCoveringEnumType = "CEILING";
else if (categoryId == new ElementId(BuiltInCategory.OST_Floors))
defaultCoveringEnumType = "FLOORING";
else if (categoryId == new ElementId(BuiltInCategory.OST_Roofs))
defaultCoveringEnumType = "ROOFING";
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, exporterIFC.GetFamilyName());
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string coveringType = IFCValidateEntry.GetValidIFCType(element, ifcEnumType, defaultCoveringEnumType);
IFCAnyHandle covering = IFCInstanceExporter.CreateCovering(file, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
instanceName, instanceDescription, instanceObjectType, setter.LocalPlacement, prodRep, instanceTag, coveringType);
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, element, covering, productWrapper, setter, setter.LocalPlacement, null);
}
bool containInSpace = false;
IFCAnyHandle localPlacementToUse = setter.LocalPlacement;
// Ceiling containment in Space is generally required and not specific to any view
if (ExporterCacheManager.CeilingSpaceRelCache.ContainsKey(element.Id))
{
IList<ElementId> roomlist = ExporterCacheManager.CeilingSpaceRelCache[element.Id];
// Process Ceiling to be contained in a Space only when it is exactly bounding one Space
if (roomlist.Count == 1)
{
productWrapper.AddElement(element, covering, setter, null, false);
// Modify the Ceiling placement to be relative to the Space that it bounds
IFCAnyHandle roomPlacement = IFCAnyHandleUtil.GetObjectPlacement(ExporterCacheManager.SpaceInfoCache.FindSpaceHandle(roomlist[0]));
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(roomPlacement, localPlacementToUse);
Transform inverseTrf = relTrf.Inverse;
IFCAnyHandle relLocalPlacement = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
IFCAnyHandleUtil.SetAttribute(localPlacementToUse, "PlacementRelTo", roomPlacement);
GeometryUtil.SetRelativePlacement(localPlacementToUse, relLocalPlacement);
ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomlist[0], covering);
containInSpace = true;
}
}
// if not contained in Space, assign it to default containment in Level
if (!containInSpace)
productWrapper.AddElement(element, covering, setter, null, true);
if (!exportParts)
{
Ceiling ceiling = element as Ceiling;
if (ceiling != null)
{
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, ceiling, covering,
geomElem, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, null);
}
else
{
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geomElem, exporterIFC, element);
CategoryUtil.CreateMaterialAssociation(exporterIFC, covering, matId);
}
}
OpeningUtil.CreateOpeningsIfNecessary(covering, element, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
}
}
transaction.Commit();
}
}
private static IFCAnyHandle TryToCreateAsExtrusion(ExporterIFC exporterIFC,
Wall wallElement,
IList<IList<IFCConnectedWallData>> connectedWalls,
IList<Solid> solids,
IList<Mesh> meshes,
double baseWallElevation,
ElementId catId,
Curve baseCurve,
Curve trimmedCurve,
Plane wallLCS,
double scaledDepth,
IFCRange zSpan,
IFCRange range,
PlacementSetter setter,
out IList<IFCExtrusionData> cutPairOpenings,
out bool isCompletelyClipped,
out double scaledFootprintArea,
out double scaledLength)
{
cutPairOpenings = new List<IFCExtrusionData>();
IFCAnyHandle bodyRep;
scaledFootprintArea = 0;
double unscaledLength = trimmedCurve != null ? trimmedCurve.Length : 0;
scaledLength = UnitUtil.ScaleLength(unscaledLength);
XYZ localOrig = wallLCS.Origin;
// Check to see if the wall has geometry given the specified range.
if (!WallHasGeometryToExport(wallElement, solids, meshes, range, out isCompletelyClipped))
return null;
// This is our major check here that goes into internal code. If we have enough information to faithfully reproduce
// the wall as an extrusion with clippings and openings, we will continue. Otherwise, export it as a BRep.
if (!CanExportWallGeometryAsExtrusion(wallElement, range))
return null;
// extrusion direction.
XYZ extrusionDir = GetWallHeightDirection(wallElement);
// create extrusion boundary.
bool alwaysThickenCurve = IsWallBaseRectangular(wallElement, trimmedCurve);
double unscaledWidth = wallElement.Width;
IList<CurveLoop> boundaryLoops = GetBoundaryLoopsFromWall(exporterIFC, wallElement, alwaysThickenCurve, trimmedCurve, unscaledWidth);
if (boundaryLoops == null || boundaryLoops.Count == 0)
return null;
double fullUnscaledLength = baseCurve.Length;
double unscaledFootprintArea = ExporterIFCUtils.ComputeAreaOfCurveLoops(boundaryLoops);
scaledFootprintArea = UnitUtil.ScaleArea(unscaledFootprintArea);
// We are going to do a little sanity check here. If the scaledFootprintArea is significantly less than the
// width * length of the wall footprint, we probably calculated the area wrong, and will abort.
// This could occur because of a door or window that cuts a corner of the wall (i.e., has no wall material on one side).
// We want the scaledFootprintArea to be at least (95% of approximateBaseArea - 2 * side wall area).
// The "side wall area" is an approximate value that takes into account potential wall joins.
// This prevents us from doing extra work for many small walls because of joins. We'll allow 1' (~30 cm) per side for this.
double approximateUnscaledBaseArea = unscaledWidth * fullUnscaledLength;
if (unscaledFootprintArea < (approximateUnscaledBaseArea * .95 - 2 * unscaledWidth))
{
// Can't handle the case where we don't have a simple extrusion to begin with.
if (!alwaysThickenCurve)
return null;
boundaryLoops = GetBoundaryLoopsFromBaseCurve(wallElement, connectedWalls, baseCurve, trimmedCurve, unscaledWidth, scaledDepth);
if (boundaryLoops == null || boundaryLoops.Count == 0)
return null;
}
// origin gets scaled later.
double baseWallZOffset = localOrig[2] - ((range == null) ? baseWallElevation : Math.Min(range.Start, baseWallElevation));
XYZ modifiedSetterOffset = new XYZ(0, 0, setter.Offset + baseWallZOffset);
IFCAnyHandle baseBodyItemHnd = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, null, boundaryLoops, wallLCS,
extrusionDir, scaledDepth);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(baseBodyItemHnd))
return null;
IFCAnyHandle bodyItemHnd = AddClippingsToBaseExtrusion(exporterIFC, wallElement,
modifiedSetterOffset, range, zSpan, baseBodyItemHnd, out cutPairOpenings);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyItemHnd))
return null;
bool hasClipping = bodyItemHnd.Id != baseBodyItemHnd.Id;
ElementId matId = HostObjectExporter.GetFirstLayerMaterialId(wallElement);
IFCAnyHandle styledItemHnd = BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, wallElement.Document,
baseBodyItemHnd, matId);
HashSet<IFCAnyHandle> bodyItems = new HashSet<IFCAnyHandle>();
bodyItems.Add(bodyItemHnd);
// Check whether wall has opening. If it has, exporting it in the Reference View will need to be in a tessellated geometry that includes the opening cut
IList<IFCOpeningData> openingDataList = ExporterIFCUtils.GetOpeningData(exporterIFC, wallElement, wallLCS, range);
bool wallHasOpening = openingDataList.Count > 0;
BodyExporterOptions options = new BodyExporterOptions(true);
IFCAnyHandle contextOfItemsBody = exporterIFC.Get3DContextHandle("Body");
if (!hasClipping)
{
// Check whether wall has opening. If it has, exporting it in Reference View will need to be in a tesselated geometry that includes the opening cut
if (ExporterUtil.IsReferenceView() && wallHasOpening)
{
List<GeometryObject> geomList = new List<GeometryObject>();
bodyItems.Clear(); // Since we will change the geometry, clear existing extrusion data first
if (solids.Count > 0)
foreach (GeometryObject solid in solids)
geomList.Add(solid);
if (meshes.Count > 0)
foreach (GeometryObject mesh in meshes)
geomList.Add(mesh);
foreach (GeometryObject geom in geomList)
{
IFCAnyHandle triangulatedBodyItem = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, wallElement, options, geom);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(triangulatedBodyItem))
bodyItems.Add(triangulatedBodyItem);
}
bodyRep = RepresentationUtil.CreateTessellatedRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems, null);
}
else
bodyRep = RepresentationUtil.CreateSweptSolidRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems, null);
}
else
{
// Create TessellatedRep geometry if it is Reference View.
if (ExporterUtil.IsReferenceView())
{
List<GeometryObject> geomList = new List<GeometryObject>();
// The native function AddClippingsToBaseExtrusion will create the IfcBooleanClippingResult entity and therefore here we need to delete it
foreach (IFCAnyHandle item in bodyItems)
{
item.Dispose(); //Still DOES NOT work, the IfcBooleanClippingResult is still orphaned in the IFC file!
}
bodyItems.Clear(); // Since we will change the geometry, clear existing extrusion data first
if (solids.Count > 0)
foreach (GeometryObject solid in solids)
geomList.Add(solid);
if (meshes.Count > 0)
foreach (GeometryObject mesh in meshes)
geomList.Add(mesh);
foreach (GeometryObject geom in geomList)
{
IFCAnyHandle triangulatedBodyItem = BodyExporter.ExportBodyAsTriangulatedFaceSet(exporterIFC, wallElement, options, geom);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(triangulatedBodyItem))
bodyItems.Add(triangulatedBodyItem);
}
bodyRep = RepresentationUtil.CreateTessellatedRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems, null);
}
else
bodyRep = RepresentationUtil.CreateClippingRep(exporterIFC, wallElement, catId, contextOfItemsBody, bodyItems);
}
return bodyRep;
}
/// <summary>
/// Exports an element as building element proxy.
/// </summary>
/// <remarks>
/// This function is called from the Export function, but can also be called directly if you do not
/// want CreateInternalPropertySets to be called.
/// </remarks>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>The handle if created, null otherwise.</returns>
public static IFCAnyHandle ExportBuildingElementProxy(ExporterIFC exporterIFC, Element element,
GeometryElement geometryElement, ProductWrapper productWrapper)
{
if (element == null || geometryElement == null)
{
return(null);
}
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum;
if (Enum.TryParse <Common.Enums.IFCEntityType>("IfcBuildingElementProxy", out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return(null);
}
}
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle buildingElementProxy = null;
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
IFCAnyHandle representation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, element,
categoryId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(representation))
{
ecData.ClearOpenings();
return(null);
}
string guid = GUIDUtil.CreateGUID(element);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
string revitObjectType = exporterIFC.GetFamilyName();
string name = NamingUtil.GetNameOverride(element, revitObjectType);
string description = NamingUtil.GetDescriptionOverride(element, null);
string objectType = NamingUtil.GetObjectTypeOverride(element, revitObjectType);
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
string elementTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
buildingElementProxy = IFCInstanceExporter.CreateBuildingElementProxy(file, guid,
ownerHistory, name, description, objectType, localPlacement, representation, elementTag, null);
productWrapper.AddElement(element, buildingElementProxy, placementSetter.LevelInfo, ecData, true);
}
tr.Commit();
}
}
return(buildingElementProxy);
}
/// <summary>
/// Exports curtain object as one Brep.
/// </summary>
/// <param name="allSubElements">
/// Collection of elements contained in the host curtain element.
/// </param>
/// <param name="wallElement">
/// The curtain wall element.
/// </param>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="setter">
/// The PlacementSetter object.
/// </param>
/// <param name="localPlacement">
/// The local placement handle.
/// </param>
/// <returns>
/// The handle.
/// </returns>
public static IFCAnyHandle ExportCurtainObjectCommonAsOneBRep(ICollection <ElementId> allSubElements, Element wallElement,
ExporterIFC exporterIFC)
{
IFCAnyHandle prodDefRep = null;
Document document = wallElement.Document;
double eps = UnitUtil.ScaleLength(document.Application.VertexTolerance);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle contextOfItems = exporterIFC.Get3DContextHandle("Body");
IFCGeometryInfo info = IFCGeometryInfo.CreateFaceGeometryInfo(eps);
ISet <IFCAnyHandle> bodyItems = new HashSet <IFCAnyHandle>();
// Want to make sure we don't accidentally add a mullion or curtain line more than once.
HashSet <ElementId> alreadyVisited = new HashSet <ElementId>();
bool useFallbackBREP = true;
Options geomOptions = GeometryUtil.GetIFCExportGeometryOptions();
foreach (ElementId subElemId in allSubElements)
{
Element subElem = wallElement.Document.GetElement(subElemId);
GeometryElement geomElem = subElem.get_Geometry(geomOptions);
if (geomElem == null)
{
continue;
}
if (alreadyVisited.Contains(subElem.Id))
{
continue;
}
alreadyVisited.Add(subElem.Id);
// Export tessellated geometry when IFC4 Reference View is selected
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView || ExporterCacheManager.ExportOptionsCache.ExportAs4General)
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(false, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
IList <IFCAnyHandle> triFaceSet = BodyExporter.ExportBodyAsTessellatedFaceSet(exporterIFC, subElem, bodyExporterOptions, geomElem);
if (triFaceSet != null && triFaceSet.Count > 0)
{
foreach (IFCAnyHandle triFaceSetItem in triFaceSet)
{
bodyItems.Add(triFaceSetItem);
}
useFallbackBREP = false; // no need to do Brep since it is successful
}
}
// Export AdvancedFace before use fallback BREP
else if (ExporterCacheManager.ExportOptionsCache.ExportAs4DesignTransferView)
{
IFCAnyHandle advancedBRep = BodyExporter.ExportBodyAsAdvancedBrep(exporterIFC, subElem, geomElem);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(advancedBRep))
{
bodyItems.Add(advancedBRep);
useFallbackBREP = false; // no need to do Brep since it is successful
}
}
if (useFallbackBREP)
{
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, geomElem, XYZ.Zero, false);
HashSet <IFCAnyHandle> faces = new HashSet <IFCAnyHandle>(info.GetSurfaces());
IFCAnyHandle outer = IFCInstanceExporter.CreateClosedShell(file, faces);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(outer))
{
bodyItems.Add(RepresentationUtil.CreateFacetedBRep(exporterIFC, document,
false, outer, ElementId.InvalidElementId));
}
}
}
if (bodyItems.Count == 0)
{
return(prodDefRep);
}
ElementId catId = CategoryUtil.GetSafeCategoryId(wallElement);
IFCAnyHandle shapeRep;
// Use tessellated geometry in Reference View
if ((ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView || ExporterCacheManager.ExportOptionsCache.ExportAs4General) && !useFallbackBREP)
{
shapeRep = RepresentationUtil.CreateTessellatedRep(exporterIFC, wallElement, catId, contextOfItems, bodyItems, null);
}
else if (ExporterCacheManager.ExportOptionsCache.ExportAs4DesignTransferView && !useFallbackBREP)
{
shapeRep = RepresentationUtil.CreateAdvancedBRepRep(exporterIFC, wallElement, catId, contextOfItems, bodyItems, null);
}
else
{
shapeRep = RepresentationUtil.CreateBRepRep(exporterIFC, wallElement, catId, contextOfItems, bodyItems);
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(shapeRep))
{
return(prodDefRep);
}
IList <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
shapeReps.Add(shapeRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, wallElement.get_Geometry(geomOptions), Transform.Identity);
if (boundingBoxRep != null)
{
shapeReps.Add(boundingBoxRep);
}
prodDefRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
return(prodDefRep);
}
/// <summary>
/// Export the individual part (IfcBuildingElementPart).
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="partElement">The part element to export.</param>
/// <param name="geometryElement">The geometry of part.</param>
/// <param name="productWrapper">The ProductWrapper object.</param>
/// <param name="placementSetter"></param>
/// <param name="originalPlacement"></param>
/// <param name="range"></param>
/// <param name="ifcExtrusionAxes"></param>
/// <param name="hostElement">The host of the part. This can be null.</param>
/// <param name="overrideLevelId">The id of the level that the part is one, overridding other sources.</param>
/// <param name="asBuildingElement">If true, export the Part as a building element instead of an IfcElementPart.</param>
public static void ExportPart(ExporterIFC exporterIFC, Element partElement, ProductWrapper productWrapper,
PlacementSetter placementSetter, IFCAnyHandle originalPlacement, IFCRange range, IFCExtrusionAxes ifcExtrusionAxes,
Element hostElement, ElementId overrideLevelId, bool asBuildingElement)
{
if (!ElementFilteringUtil.IsElementVisible(partElement))
{
return;
}
Part part = partElement as Part;
if (part == null)
{
return;
}
// We don't know how to export a part as a building element if we don't know it's host.
if (asBuildingElement && (hostElement == null))
{
return;
}
if (!asBuildingElement)
{
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcBuildingElementPart;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
else
{
string ifcEnumType = null;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum;
if (Enum.TryParse <Common.Enums.IFCEntityType>(exportType.ToString(), out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
}
PlacementSetter standalonePlacementSetter = null;
bool standaloneExport = hostElement == null || asBuildingElement;
ElementId partExportLevelId = (overrideLevelId != null) ? overrideLevelId : null;
if (partExportLevelId == null && standaloneExport)
{
partExportLevelId = partElement.LevelId;
}
if (partExportLevelId == null)
{
if (hostElement == null || (part.OriginalCategoryId != hostElement.Category.Id))
{
return;
}
partExportLevelId = hostElement.LevelId;
}
if (ExporterCacheManager.PartExportedCache.HasExported(partElement.Id, partExportLevelId))
{
return;
}
Options options = GeometryUtil.GetIFCExportGeometryOptions();
View ownerView = partElement.Document.GetElement(partElement.OwnerViewId) as View;
if (ownerView != null)
{
options.View = ownerView;
}
GeometryElement geometryElement = partElement.get_Geometry(options);
if (geometryElement == null)
{
return;
}
try
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
IFCAnyHandle partPlacement = null;
if (standaloneExport)
{
Transform orientationTrf = Transform.Identity;
standalonePlacementSetter = PlacementSetter.Create(exporterIFC, partElement, null, orientationTrf, partExportLevelId);
partPlacement = standalonePlacementSetter.LocalPlacement;
}
else
{
partPlacement = ExporterUtil.CreateLocalPlacement(file, originalPlacement, null);
}
bool validRange = (range != null && !MathUtil.IsAlmostZero(range.Start - range.End));
SolidMeshGeometryInfo solidMeshInfo;
if (validRange)
{
solidMeshInfo = GeometryUtil.GetSplitClippedSolidMeshGeometry(geometryElement, range);
if (solidMeshInfo.GetSolids().Count == 0 && solidMeshInfo.GetMeshes().Count == 0)
{
return;
}
}
else
{
solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement);
}
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(partPlacement);
extrusionCreationData.ReuseLocalPlacement = false;
extrusionCreationData.PossibleExtrusionAxes = ifcExtrusionAxes;
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
ElementId catId = CategoryUtil.GetSafeCategoryId(partElement);
ElementId hostCatId = CategoryUtil.GetSafeCategoryId(hostElement);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, solids, meshes,
bodyExporterOptions, extrusionCreationData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, partElement, catId, ElementId.InvalidElementId, geomlist,
bodyExporterOptions, extrusionCreationData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
extrusionCreationData.ClearOpenings();
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(bodyRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
string partGUID = GUIDUtil.CreateGUID(partElement);
IFCAnyHandle ifcPart = null;
if (!asBuildingElement)
{
ifcPart = IFCInstanceExporter.CreateBuildingElementPart(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep);
}
else
{
string ifcEnumType = null;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, hostElement, out ifcEnumType);
switch (exportType.ExportInstance)
{
case IFCEntityType.IfcColumn:
ifcPart = IFCInstanceExporter.CreateColumn(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcCovering:
ifcPart = IFCInstanceExporter.CreateCovering(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcFooting:
ifcPart = IFCInstanceExporter.CreateFooting(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcPile:
ifcPart = IFCInstanceExporter.CreatePile(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType, null);
break;
case IFCEntityType.IfcRoof:
ifcPart = IFCInstanceExporter.CreateRoof(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
case IFCEntityType.IfcSlab:
{
// TODO: fix this elsewhere.
if (ExporterUtil.IsNotDefined(ifcEnumType))
{
if (hostCatId == new ElementId(BuiltInCategory.OST_Floors))
{
ifcEnumType = "FLOOR";
}
else if (hostCatId == new ElementId(BuiltInCategory.OST_Roofs))
{
ifcEnumType = "ROOF";
}
}
ifcPart = IFCInstanceExporter.CreateSlab(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
}
break;
case IFCEntityType.IfcWall:
ifcPart = IFCInstanceExporter.CreateWall(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, ifcEnumType);
break;
default:
ifcPart = IFCInstanceExporter.CreateBuildingElementProxy(exporterIFC, partElement, partGUID, ownerHistory,
extrusionCreationData.GetLocalPlacement(), prodRep, null);
break;
}
}
bool containedInLevel = standaloneExport;
PlacementSetter whichPlacementSetter = containedInLevel ? standalonePlacementSetter : placementSetter;
productWrapper.AddElement(partElement, ifcPart, whichPlacementSetter, extrusionCreationData, containedInLevel);
OpeningUtil.CreateOpeningsIfNecessary(ifcPart, partElement, extrusionCreationData, bodyData.OffsetTransform, exporterIFC,
extrusionCreationData.GetLocalPlacement(), whichPlacementSetter, productWrapper);
//Add the exported part to exported cache.
TraceExportedParts(partElement, partExportLevelId, standaloneExport ? ElementId.InvalidElementId : hostElement.Id);
CategoryUtil.CreateMaterialAssociation(exporterIFC, ifcPart, bodyData.MaterialIds);
transaction.Commit();
}
}
}
finally
{
if (standalonePlacementSetter != null)
{
standalonePlacementSetter.Dispose();
}
}
}
/// <summary>
/// Exports a MEP family instance.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="exportType">The export type of the element.
/// <param name="ifcEnumType">The sub-type of the element.</param></param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if an entity was created, false otherwise.</returns>
public static bool Export(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
IFCExportInfoPair exportType, string ifcEnumType, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
// CQ_TODO: Clean up this code by at least factoring it out.
// If we are exporting a duct segment, we may need to split it into parts by level. Create a list of ranges.
IList <ElementId> levels = new List <ElementId>();
IList <IFCRange> ranges = new List <IFCRange>();
// We will not split duct segments if the assemblyId is set, as we would like to keep the original duct segment
// associated with the assembly, on the level of the assembly.
if ((exportType.ExportType == IFCEntityType.IfcDuctSegmentType) &&
(ExporterCacheManager.ExportOptionsCache.WallAndColumnSplitting) &&
(element.AssemblyInstanceId == ElementId.InvalidElementId))
{
LevelUtil.CreateSplitLevelRangesForElement(exporterIFC, exportType, element, out levels,
out ranges);
}
int numPartsToExport = ranges.Count;
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
if (0 == numPartsToExport)
{
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, element, out overrideContainerHnd);
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, null, overrideContainerId, overrideContainerHnd))
{
IFCAnyHandle localPlacementToUse = setter.LocalPlacement;
BodyData bodyData = null;
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
extraParams.SetLocalPlacement(localPlacementToUse);
IFCAnyHandle productRepresentation =
RepresentationUtil.CreateAppropriateProductDefinitionShape(
exporterIFC, element, catId, geometryElement, bodyExporterOptions, null, extraParams, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(productRepresentation))
{
extraParams.ClearOpenings();
return(false);
}
ExportAsMappedItem(exporterIFC, element, file, exportType, ifcEnumType, extraParams,
setter, localPlacementToUse, productRepresentation,
productWrapper);
}
}
}
else
{
for (int ii = 0; ii < numPartsToExport; ii++)
{
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ParameterUtil.OverrideContainmentParameter(exporterIFC, element, out overrideContainerHnd);
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, null, levels[ii], overrideContainerHnd))
{
IFCAnyHandle localPlacementToUse = setter.LocalPlacement;
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
SolidMeshGeometryInfo solidMeshCapsule =
GeometryUtil.GetClippedSolidMeshGeometry(geometryElement, ranges[ii]);
IList <Solid> solids = solidMeshCapsule.GetSolids();
IList <Mesh> polyMeshes = solidMeshCapsule.GetMeshes();
IList <GeometryObject> geomObjects =
FamilyExporterUtil.RemoveInvisibleSolidsAndMeshes(element.Document,
exporterIFC, ref solids, ref polyMeshes);
if (geomObjects.Count == 0 && (solids.Count > 0 || polyMeshes.Count > 0))
{
return(false);
}
bool tryToExportAsExtrusion = (!exporterIFC.ExportAs2x2 ||
(exportType.ExportInstance == IFCEntityType.IfcColumn));
if (exportType.ExportInstance == IFCEntityType.IfcColumn)
{
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;
}
else
{
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryXYZ;
}
BodyData bodyData = null;
if (geomObjects.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId,
ElementId.InvalidElementId, geomObjects,
bodyExporterOptions, extraParams);
}
else
{
IList <GeometryObject> exportedGeometries = new List <GeometryObject>();
exportedGeometries.Add(geometryElement);
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId,
ElementId.InvalidElementId,
exportedGeometries, bodyExporterOptions,
extraParams);
}
List <IFCAnyHandle> bodyReps = new List <IFCAnyHandle>();
bodyReps.Add(bodyData.RepresentationHnd);
IFCAnyHandle productRepresentation =
IFCInstanceExporter.CreateProductDefinitionShape(exporterIFC.GetFile(), null,
null, bodyReps);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(productRepresentation))
{
extraParams.ClearOpenings();
return(false);
}
ExportAsMappedItem(exporterIFC, element, file, exportType, ifcEnumType,
extraParams, setter, localPlacementToUse,
productRepresentation, productWrapper);
}
}
}
}
}
tr.Commit();
}
return(true);
}
/// <summary>
/// Exports a MEP family instance.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="exportType">The export type of the element.
/// <param name="ifcEnumType">The sub-type of the element.</param></param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if an entity was created, false otherwise.</returns>
public static bool Export(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
IFCExportType exportType, string ifcEnumType, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
IFCAnyHandle localPlacementToUse = setter.LocalPlacement;
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
extraParams.SetLocalPlacement(localPlacementToUse);
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
BodyData bodyData = null;
IFCAnyHandle productRepresentation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
element, catId, geometryElement, bodyExporterOptions, null, extraParams, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(productRepresentation))
{
extraParams.ClearOpenings();
return false;
}
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
ElementId typeId = element.GetTypeId();
ElementType type = element.Document.GetElement(typeId) as ElementType;
FamilyTypeInfo currentTypeInfo = ExporterCacheManager.TypeObjectsCache.Find(typeId, false);
bool found = currentTypeInfo.IsValid();
if (!found)
{
string typeGUID = GUIDUtil.CreateGUID(type);
string typeName = NamingUtil.GetNameOverride(type, NamingUtil.GetIFCName(type));
string typeObjectType = NamingUtil.GetObjectTypeOverride(type, NamingUtil.CreateIFCObjectName(exporterIFC, type));
string applicableOccurence = NamingUtil.GetOverrideStringValue(type, "IfcApplicableOccurrence", typeObjectType);
string typeDescription = NamingUtil.GetDescriptionOverride(type, null);
string typeTag = NamingUtil.GetTagOverride(type, NamingUtil.CreateIFCElementId(type));
string typeElementType = NamingUtil.GetOverrideStringValue(type, "IfcElementType", typeName);
IList<IFCAnyHandle> repMapListOpt = new List<IFCAnyHandle>();
IFCAnyHandle styleHandle = FamilyExporterUtil.ExportGenericType(exporterIFC, exportType, ifcEnumType, typeGUID, typeName,
typeDescription, applicableOccurence, null, repMapListOpt, typeTag, typeElementType, element, type);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(styleHandle))
{
productWrapper.RegisterHandleWithElementType(type, styleHandle, null);
currentTypeInfo.Style = styleHandle;
ExporterCacheManager.TypeObjectsCache.Register(typeId, false, currentTypeInfo);
}
}
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, NamingUtil.CreateIFCObjectName(exporterIFC, element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
bool roomRelated = !FamilyExporterUtil.IsDistributionFlowElementSubType(exportType);
ElementId roomId = ElementId.InvalidElementId;
if (roomRelated)
{
roomId = setter.UpdateRoomRelativeCoordinates(element, out localPlacementToUse);
}
IFCAnyHandle instanceHandle = null;
// For MEP objects
string exportEntityStr = exportType.ToString();
Common.Enums.IFCEntityType exportEntity;
if (String.Compare(exportEntityStr.Substring(exportEntityStr.Length - 4), "Type", true) == 0)
exportEntityStr = exportEntityStr.Substring(0, (exportEntityStr.Length - 4));
if (Enum.TryParse(exportEntityStr, out exportEntity))
{
// For MEP object creation
instanceHandle = IFCInstanceExporter.CreateGenericIFCEntity(exportEntity, file, instanceGUID, ownerHistory,
instanceName, instanceDescription, instanceObjectType, localPlacementToUse, productRepresentation, instanceTag);
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(instanceHandle))
return false;
bool relatedToSpace = (roomId != ElementId.InvalidElementId);
productWrapper.AddElement(element, instanceHandle, setter, extraParams, !relatedToSpace);
if (relatedToSpace)
ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomId, instanceHandle);
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, element, extraParams, null,
exporterIFC, localPlacementToUse, setter, productWrapper);
if (currentTypeInfo.IsValid())
ExporterCacheManager.TypeRelationsCache.Add(currentTypeInfo.Style, instanceHandle);
if (bodyData != null && bodyData.MaterialIds.Count != 0)
CategoryUtil.CreateMaterialAssociations(exporterIFC, instanceHandle, bodyData.MaterialIds);
ExporterCacheManager.MEPCache.Register(element, instanceHandle);
tr.Commit();
}
}
}
return true;
}
/// <summary>
/// Creates a SweptSolid, Brep, SolidModel or SurfaceModel product definition shape representation, based on the geometry and IFC version.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="categoryId">The category id.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="bodyExporterOptions">The body exporter options.</param>
/// <param name="extraReps">Extra representations (e.g. Axis, Boundary). May be null.</param>
/// <param name="extrusionCreationData">The extrusion creation data.</param>
/// <param name="bodyData">The body data.</param>
/// <returns>The handle.</returns>
public static IFCAnyHandle CreateAppropriateProductDefinitionShape(ExporterIFC exporterIFC, Element element, ElementId categoryId,
GeometryElement geometryElement, BodyExporterOptions bodyExporterOptions, IList<IFCAnyHandle> extraReps,
IFCExtrusionCreationData extrusionCreationData, out BodyData bodyData)
{
bodyData = null;
SolidMeshGeometryInfo info = null;
IList<GeometryObject> geometryList = new List<GeometryObject>();
if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
{
info = GeometryUtil.GetSplitSolidMeshGeometry(geometryElement, Transform.Identity);
IList<Mesh> meshes = info.GetMeshes();
if (meshes.Count == 0)
{
IList<Solid> solidList = info.GetSolids();
foreach (Solid solid in solidList)
{
geometryList.Add(solid);
}
}
}
if (geometryList.Count == 0)
geometryList.Add(geometryElement);
else
bodyExporterOptions.TryToExportAsExtrusion = true;
bodyData = BodyExporter.ExportBody(exporterIFC, element, categoryId, ElementId.InvalidElementId, geometryList,
bodyExporterOptions, extrusionCreationData);
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
List<IFCAnyHandle> bodyReps = new List<IFCAnyHandle>();
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
if (extrusionCreationData != null)
extrusionCreationData.ClearOpenings();
}
else
bodyReps.Add(bodyRep);
if (extraReps != null)
{
foreach (IFCAnyHandle hnd in extraReps)
bodyReps.Add(hnd);
}
Transform boundingBoxTrf = (bodyData.OffsetTransform != null) ? bodyData.OffsetTransform.Inverse : Transform.Identity;
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, boundingBoxTrf);
if (boundingBoxRep != null)
bodyReps.Add(boundingBoxRep);
if (bodyReps.Count == 0)
return null;
return IFCInstanceExporter.CreateProductDefinitionShape(exporterIFC.GetFile(), null, null, bodyReps);
}
/// <summary>
/// Exports a MEP family instance.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="exportType">The export type of the element.
/// <param name="ifcEnumType">The sub-type of the element.</param></param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>True if an entity was created, false otherwise.</returns>
public static bool Export(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
IFCExportType exportType, string ifcEnumType, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
IFCAnyHandle localPlacementToUse = setter.LocalPlacement;
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
extraParams.SetLocalPlacement(localPlacementToUse);
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
BodyData bodyData = null;
IFCAnyHandle productRepresentation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
element, catId, geometryElement, bodyExporterOptions, null, extraParams, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(productRepresentation))
{
extraParams.ClearOpenings();
return(false);
}
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
ElementId typeId = element.GetTypeId();
ElementType type = element.Document.GetElement(typeId) as ElementType;
FamilyTypeInfo currentTypeInfo = ExporterCacheManager.TypeObjectsCache.Find(typeId, false);
bool found = currentTypeInfo.IsValid();
if (!found)
{
string typeGUID = GUIDUtil.CreateGUID(type);
string typeName = NamingUtil.GetNameOverride(type, NamingUtil.GetIFCName(type));
string typeObjectType = NamingUtil.GetObjectTypeOverride(type, NamingUtil.CreateIFCObjectName(exporterIFC, type));
string applicableOccurence = NamingUtil.GetOverrideStringValue(type, "IfcApplicableOccurrence", typeObjectType);
string typeDescription = NamingUtil.GetDescriptionOverride(type, null);
string typeTag = NamingUtil.GetTagOverride(type, NamingUtil.CreateIFCElementId(type));
string typeElementType = NamingUtil.GetOverrideStringValue(type, "IfcElementType", typeName);
IList <IFCAnyHandle> repMapListOpt = new List <IFCAnyHandle>();
IFCAnyHandle styleHandle = FamilyExporterUtil.ExportGenericType(exporterIFC, exportType, ifcEnumType, typeGUID, typeName,
typeDescription, applicableOccurence, null, repMapListOpt, typeTag, typeElementType, element, type);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(styleHandle))
{
productWrapper.RegisterHandleWithElementType(type, styleHandle, null);
currentTypeInfo.Style = styleHandle;
ExporterCacheManager.TypeObjectsCache.Register(typeId, false, currentTypeInfo);
}
}
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, NamingUtil.CreateIFCObjectName(exporterIFC, element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
bool roomRelated = !FamilyExporterUtil.IsDistributionFlowElementSubType(exportType);
ElementId roomId = ElementId.InvalidElementId;
if (roomRelated)
{
roomId = setter.UpdateRoomRelativeCoordinates(element, out localPlacementToUse);
}
IFCAnyHandle instanceHandle = null;
// For MEP objects
string exportEntityStr = exportType.ToString();
Common.Enums.IFCEntityType exportEntity;
if (String.Compare(exportEntityStr.Substring(exportEntityStr.Length - 4), "Type", true) == 0)
{
exportEntityStr = exportEntityStr.Substring(0, (exportEntityStr.Length - 4));
}
if (Enum.TryParse(exportEntityStr, out exportEntity))
{
// For MEP object creation
instanceHandle = IFCInstanceExporter.CreateGenericIFCEntity(exportEntity, file, instanceGUID, ownerHistory,
instanceName, instanceDescription, instanceObjectType, localPlacementToUse, productRepresentation, instanceTag);
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(instanceHandle))
{
return(false);
}
bool relatedToSpace = (roomId != ElementId.InvalidElementId);
productWrapper.AddElement(element, instanceHandle, setter, extraParams, !relatedToSpace);
if (relatedToSpace)
{
ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomId, instanceHandle);
}
OpeningUtil.CreateOpeningsIfNecessary(instanceHandle, element, extraParams, null,
exporterIFC, localPlacementToUse, setter, productWrapper);
if (currentTypeInfo.IsValid())
{
ExporterCacheManager.TypeRelationsCache.Add(currentTypeInfo.Style, instanceHandle);
}
if (bodyData != null && bodyData.MaterialIds.Count != 0)
{
CategoryUtil.CreateMaterialAssociations(exporterIFC, instanceHandle, bodyData.MaterialIds);
}
ExporterCacheManager.MEPCache.Register(element, instanceHandle);
tr.Commit();
}
}
}
return(true);
}
/// <summary>
/// Creates an opening from a solid.
/// </summary>
/// <param name="exporterIFC">The exporter.</param>
/// <param name="hostObjHnd">The host object handle.</param>
/// <param name="hostElement">The host element.</param>
/// <param name="insertElement">The insert element.</param>
/// <param name="openingGUID">The GUID for the opening, depending on how the opening is created.</param>
/// <param name="solid">The solid.</param>
/// <param name="scaledHostWidth">The scaled host width.</param>
/// <param name="isRecess">True if it is recess.</param>
/// <param name="extrusionCreationData">The extrusion creation data.</param>
/// <param name="setter">The placement setter.</param>
/// <param name="localWrapper">The product wrapper.</param>
/// <returns>The created opening handle.</returns>
static public IFCAnyHandle CreateOpening(ExporterIFC exporterIFC, IFCAnyHandle hostObjHnd, Element hostElement, Element insertElement, string openingGUID,
Solid solid, double scaledHostWidth, bool isRecess, IFCExtrusionCreationData extrusionCreationData, PlacementSetter setter, ProductWrapper localWrapper)
{
IFCFile file = exporterIFC.GetFile();
ElementId catId = CategoryUtil.GetSafeCategoryId(insertElement);
XYZ prepToWall;
bool isLinearWall = GetOpeningDirection(hostElement, out prepToWall);
if (isLinearWall)
{
extrusionCreationData.CustomAxis = prepToWall;
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryCustom;
}
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
BodyData bodyData = BodyExporter.ExportBody(exporterIFC, insertElement, catId, ElementId.InvalidElementId,
solid, bodyExporterOptions, extrusionCreationData);
IFCAnyHandle openingRepHnd = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(openingRepHnd))
{
extrusionCreationData.ClearOpenings();
return null;
}
IList<IFCAnyHandle> representations = new List<IFCAnyHandle>();
representations.Add(openingRepHnd);
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle openingPlacement = extrusionCreationData.GetLocalPlacement();
IFCAnyHandle hostObjPlacementHnd = IFCAnyHandleUtil.GetObjectPlacement(hostObjHnd);
Transform relTransform = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(openingPlacement, hostObjPlacementHnd);
openingPlacement = ExporterUtil.CreateLocalPlacement(file, hostObjPlacementHnd,
relTransform.Origin, relTransform.BasisZ, relTransform.BasisX);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
double scaledOpeningLength = extrusionCreationData.ScaledLength;
string openingObjectType = "Opening";
if (!MathUtil.IsAlmostZero(scaledHostWidth) && !MathUtil.IsAlmostZero(scaledOpeningLength))
openingObjectType = scaledOpeningLength < (scaledHostWidth - MathUtil.Eps()) ? "Recess" : "Opening";
else
openingObjectType = isRecess ? "Recess" : "Opening";
string openingName = NamingUtil.GetNameOverride(insertElement, null);
if (string.IsNullOrEmpty(openingName))
{
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(hostObjHnd))
openingName = IFCAnyHandleUtil.GetStringAttribute(hostObjHnd, "Name");
else
openingName = NamingUtil.GetNameOverride(hostElement, NamingUtil.CreateIFCObjectName(exporterIFC, hostElement));
}
IFCAnyHandle openingHnd = IFCInstanceExporter.CreateOpeningElement(file, openingGUID, ownerHistory, openingName, null,
openingObjectType, openingPlacement, prodRep, null);
if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
PropertyUtil.CreateOpeningQuantities(exporterIFC, openingHnd, extrusionCreationData);
if (localWrapper != null)
{
Element elementForProperties = null;
if (GUIDUtil.IsGUIDFor(insertElement, openingGUID))
elementForProperties = insertElement;
localWrapper.AddElement(insertElement, openingHnd, setter, extrusionCreationData, true);
}
string voidGuid = GUIDUtil.CreateGUID();
IFCInstanceExporter.CreateRelVoidsElement(file, voidGuid, ownerHistory, null, null, hostObjHnd, openingHnd);
return openingHnd;
}
/// <summary>
/// Exports an element to IfcPile.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="ifcEnumType">The string value represents the IFC type.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportPile(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
string ifcEnumType, ProductWrapper productWrapper)
{
// NOTE: We expect to incorporate this code into the generic FamilyInstanceExporter at some point.
// export parts or not
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, element, out overrideContainerHnd);
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, null, overrideContainerId, overrideContainerHnd))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(setter.LocalPlacement);
IFCAnyHandle prodRep = null;
ElementId matId = ElementId.InvalidElementId;
if (!exportParts)
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
StructuralMemberAxisInfo axisInfo = StructuralMemberExporter.GetStructuralMemberAxisTransform(element);
if (axisInfo != null)
{
ecData.CustomAxis = axisInfo.AxisDirection;
ecData.PossibleExtrusionAxes = IFCExtrusionAxes.TryCustom;
}
else
{
ecData.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;
}
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
element, catId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
}
string instanceGUID = GUIDUtil.CreateGUID(element);
IFCExportInfoPair exportInfo = new IFCExportInfoPair(Common.Enums.IFCEntityType.IfcPile, ifcEnumType);
IFCAnyHandle pile = IFCInstanceExporter.CreatePile(exporterIFC, element, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
ecData.GetLocalPlacement(), prodRep, ifcEnumType, null);
// TODO: to allow shared geometry for Piles. For now, Pile export will not use shared geometry
if (exportInfo.ExportType != Common.Enums.IFCEntityType.UnKnown)
{
IFCAnyHandle type = ExporterUtil.CreateGenericTypeFromElement(element, exportInfo, file, ExporterCacheManager.OwnerHistoryHandle, exportInfo.ValidatedPredefinedType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(type, pile);
}
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, element, pile, productWrapper, setter, setter.LocalPlacement, null);
}
else
{
if (matId != ElementId.InvalidElementId)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, pile, matId);
}
}
productWrapper.AddElement(element, pile, setter, ecData, true, exportInfo);
OpeningUtil.CreateOpeningsIfNecessary(pile, element, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
}
}
tr.Commit();
}
}
/// <summary>
/// Exports mullion.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="mullion">
/// The mullion object.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="localPlacement">
/// The local placement handle.
/// </param>
/// <param name="setter">
/// The PlacementSetter.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void Export(ExporterIFC exporterIFC, Mullion mullion, GeometryElement geometryElement,
IFCAnyHandle localPlacement, PlacementSetter setter, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (PlacementSetter mullionSetter = PlacementSetter.Create(exporterIFC, mullion))
{
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
IFCAnyHandle mullionPlacement = mullionSetter.LocalPlacement;
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(localPlacement, mullionPlacement);
Transform inverseTrf = relTrf.Inverse;
IFCAnyHandle mullionLocalPlacement = ExporterUtil.CreateLocalPlacement(file, localPlacement,
inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
extraParams.SetLocalPlacement(mullionLocalPlacement);
Transform extrusionLCS = null;
// Add a custom direction for trying to create an extrusion based on the base curve of the mullion, if it is a line and not an arc.
Curve baseCurve = mullion.LocationCurve;
if ((baseCurve != null) && (baseCurve is Line))
{
// We won't use curveBounds and origin yet; just need the axis for now.
IFCRange curveBounds;
XYZ origin, mullionDirection;
GeometryUtil.GetAxisAndRangeFromCurve(baseCurve, out curveBounds, out mullionDirection, out origin);
// approx 1.0/sqrt(2.0)
XYZ planeY = (Math.Abs(mullionDirection.Z) < 0.707) ? XYZ.BasisZ.CrossProduct(mullionDirection) : XYZ.BasisX.CrossProduct(mullionDirection);
planeY.Normalize();
XYZ projDir = mullionDirection.CrossProduct(planeY);
extrusionLCS = Transform.Identity;
extrusionLCS.BasisX = mullionDirection; extrusionLCS.BasisY = planeY; extrusionLCS.BasisZ = projDir; extrusionLCS.Origin = origin;
}
ElementId catId = CategoryUtil.GetSafeCategoryId(mullion);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.ExtrusionLocalCoordinateSystem = extrusionLCS;
IFCAnyHandle repHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, mullion, catId,
geometryElement, bodyExporterOptions, null, extraParams, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
extraParams.ClearOpenings();
return;
}
string elemGUID = GUIDUtil.CreateGUID(mullion);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string elemObjectType = NamingUtil.CreateIFCObjectName(exporterIFC, mullion);
string name = NamingUtil.GetNameOverride(mullion, elemObjectType);
string description = NamingUtil.GetDescriptionOverride(mullion, null);
string objectType = NamingUtil.GetObjectTypeOverride(mullion, elemObjectType);
string elemTag = NamingUtil.GetTagOverride(mullion, NamingUtil.CreateIFCElementId(mullion));
IFCAnyHandle mullionHnd = IFCInstanceExporter.CreateMember(file, elemGUID, ownerHistory, name, description, objectType,
mullionLocalPlacement, repHnd, elemTag, "MULLION");
ExporterCacheManager.HandleToElementCache.Register(mullionHnd, mullion.Id);
productWrapper.AddElement(mullion, mullionHnd, mullionSetter, extraParams, false);
ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, mullion);
CategoryUtil.CreateMaterialAssociation(exporterIFC, mullionHnd, matId);
}
}
}
/// <summary>
/// Exports a beam to IFC beam if it has an axis representation and only one Solid as its geometry, ideally as an extrusion, potentially with clippings and openings.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element to be exported.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <param name="dontExport">An output value that says that the element shouldn't be exported at all.</param>
/// <returns>The created handle.</returns>
/// <remarks>In the original implementation, the ExportBeam function would export each beam as its own individual geometry (that is, not use representation maps).
/// For non-standard beams, this could result in massive IFC files. Now, we use the ExportBeamAsStandardElement function and limit its scope, and instead
/// resort to the standard FamilyInstanceExporter.ExportFamilyInstanceAsMappedItem for more complicated objects categorized as beams. This has the following pros and cons:
/// Pro: possiblity for massively reduced file sizes for files containing repeated complex beam families
/// Con: some beams that may have had an "Axis" representation before will no longer have them, although this possibility is minimized.
/// Con: some beams that have 1 Solid and an axis, but that Solid will be heavily faceted, won't be helped by this improvement.
/// It is intended that we phase out this routine entirely and instead teach ExportFamilyInstanceAsMappedItem how to sometimes export the Axis representation for beams.</remarks>
public static IFCAnyHandle ExportBeamAsStandardElement(ExporterIFC exporterIFC,
Element element, IFCExportInfoPair exportType, GeometryElement geometryElement, ProductWrapper productWrapper, out bool dontExport)
{
dontExport = true;
IList <GeometryObject> geomObjects = BeamGeometryToExport(exporterIFC, element, geometryElement, out dontExport);
if (dontExport)
{
return(null);
}
IFCAnyHandle beam = null;
IFCFile file = exporterIFC.GetFile();
MaterialAndProfile materialAndProfile = null;
IFCAnyHandle materialProfileSet = null;
using (IFCTransaction transaction = new IFCTransaction(file))
{
BeamAxisInfo axisInfo = GetBeamAxisTransform(element);
bool canExportAxis = (axisInfo != null);
Curve curve = canExportAxis ? axisInfo.Axis : null;
XYZ beamDirection = canExportAxis ? axisInfo.AxisDirection : null;
Transform orientTrf = canExportAxis ? axisInfo.LCSAsTransform : null;
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, element, out overrideContainerHnd);
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, orientTrf, overrideContainerId, overrideContainerHnd))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
using (IFCExtrusionCreationData extrusionCreationData = new IFCExtrusionCreationData())
{
extrusionCreationData.SetLocalPlacement(localPlacement);
if (canExportAxis && (orientTrf.BasisX != null))
{
extrusionCreationData.CustomAxis = beamDirection;
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryCustom;
}
else
{
extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryXY;
}
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
// There may be an offset to make the local coordinate system
// be near the origin. This offset will be used to move the axis to the new LCS.
Transform offsetTransform = null;
// The list of materials in the solids or meshes.
ICollection <ElementId> materialIds = null;
// If the beam is a FamilyInstance, and it uses transformed FamilySymbol geometry only, then
// let's only try to CreateBeamGeometryAsExtrusion unsuccesfully once. Otherwise, we can spend a lot of time trying
// unsuccessfully to do so.
bool tryToCreateBeamGeometryAsExtrusion = true;
//bool useFamilySymbolGeometry = (element is FamilyInstance) ? !ExporterIFCUtils.UsesInstanceGeometry(element as FamilyInstance) : false;
bool useFamilySymbolGeometry = (element is FamilyInstance) ? !GeometryUtil.UsesInstanceGeometry(element as FamilyInstance) : false;
ElementId beamTypeId = element.GetTypeId();
if (useFamilySymbolGeometry)
{
tryToCreateBeamGeometryAsExtrusion = !ExporterCacheManager.CanExportBeamGeometryAsExtrusionCache.ContainsKey(beamTypeId) ||
ExporterCacheManager.CanExportBeamGeometryAsExtrusionCache[beamTypeId];
}
// The representation handle generated from one of the methods below.
BeamBodyAsExtrusionInfo extrusionInfo = null;
if (tryToCreateBeamGeometryAsExtrusion)
{
extrusionInfo = CreateBeamGeometryAsExtrusion(exporterIFC, element, catId, geomObjects, axisInfo);
if (useFamilySymbolGeometry)
{
ExporterCacheManager.CanExportBeamGeometryAsExtrusionCache[beamTypeId] = (extrusionInfo != null);
}
}
if (extrusionInfo != null && extrusionInfo.DontExport)
{
dontExport = true;
return(null);
}
IFCAnyHandle repHnd = (extrusionInfo != null) ? extrusionInfo.RepresentationHandle : null;
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
materialIds = extrusionInfo.Materials;
extrusionCreationData.Slope = extrusionInfo.Slope;
}
else
{
// Here is where we limit the scope of how complex a case we will still try to export as a standard element.
// This is explicitly added so that many curved beams that can be represented by a reasonable facetation because of the
// SweptSolidExporter can still have an Axis representation.
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
bodyExporterOptions.CollectMaterialAndProfile = false;
}
else
{
bodyExporterOptions.CollectMaterialAndProfile = true;
}
if (geomObjects != null && geomObjects.Count == 1 && geomObjects[0] is Solid)
{
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId,
geomObjects[0], bodyExporterOptions, extrusionCreationData);
repHnd = bodyData.RepresentationHnd;
materialIds = bodyData.MaterialIds;
if (!bodyData.OffsetTransform.IsIdentity)
{
offsetTransform = bodyData.OffsetTransform;
}
materialAndProfile = bodyData.MaterialAndProfile;
}
}
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
{
extrusionCreationData.ClearOpenings();
return(null);
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
IFCAnyHandle axisRep = CreateBeamAxis(exporterIFC, element, catId, axisInfo, offsetTransform);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(axisRep))
{
representations.Add(axisRep);
}
representations.Add(repHnd);
Transform boundingBoxTrf = (offsetTransform == null) ? Transform.Identity : offsetTransform.Inverse;
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, boundingBoxTrf);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
string instanceGUID = GUIDUtil.CreateGUID(element);
beam = IFCInstanceExporter.CreateBeam(exporterIFC, element, instanceGUID, ExporterCacheManager.OwnerHistoryHandle, extrusionCreationData.GetLocalPlacement(), prodRep, exportType.ValidatedPredefinedType);
IFCAnyHandle mpSetUsage;
if (materialProfileSet != null)
{
mpSetUsage = IFCInstanceExporter.CreateMaterialProfileSetUsage(file, materialProfileSet, null, null);
}
productWrapper.AddElement(element, beam, setter, extrusionCreationData, true, exportType);
ExportBeamType(exporterIFC, productWrapper, beam, element, exportType.ValidatedPredefinedType);
OpeningUtil.CreateOpeningsIfNecessary(beam, element, extrusionCreationData, offsetTransform, exporterIFC,
extrusionCreationData.GetLocalPlacement(), setter, productWrapper);
FamilyTypeInfo typeInfo = new FamilyTypeInfo();
typeInfo.ScaledDepth = extrusionCreationData.ScaledLength;
typeInfo.ScaledArea = extrusionCreationData.ScaledArea;
typeInfo.ScaledInnerPerimeter = extrusionCreationData.ScaledInnerPerimeter;
typeInfo.ScaledOuterPerimeter = extrusionCreationData.ScaledOuterPerimeter;
PropertyUtil.CreateBeamColumnBaseQuantities(exporterIFC, beam, element, typeInfo, null);
if (materialIds.Count != 0)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, beam, materialIds);
}
// Register the beam's IFC handle for later use by truss and beam system export.
ExporterCacheManager.ElementToHandleCache.Register(element.Id, beam, exportType);
}
}
transaction.Commit();
return(beam);
}
}
/// <summary>
/// Creates IFC room/space/area item, not include boundaries.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="spatialElement">The spatial element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <param name="setter">The PlacementSetter.</param>
/// <returns>True if created successfully, false otherwise.</returns>
static bool CreateIFCSpace(ExporterIFC exporterIFC, SpatialElement spatialElement, ProductWrapper productWrapper,
PlacementSetter setter, out SpatialElementGeometryResults results)
{
results = null;
IList<CurveLoop> curveLoops = null;
try
{
// Avoid throwing for a spatial element with no location.
if (spatialElement.Location == null)
return false;
SpatialElementBoundaryOptions options = GetSpatialElementBoundaryOptions(spatialElement);
curveLoops = ExporterIFCUtils.GetRoomBoundaryAsCurveLoopArray(spatialElement, options, true);
}
catch (Autodesk.Revit.Exceptions.InvalidOperationException)
{
//Some spatial elements are not placed that have no boundary loops. Don't export them.
return false;
}
Autodesk.Revit.DB.Document document = spatialElement.Document;
ElementId levelId = spatialElement.LevelId;
ElementId catId = spatialElement.Category != null ? spatialElement.Category.Id : ElementId.InvalidElementId;
double dArea = 0.0;
if (ParameterUtil.GetDoubleValueFromElement(spatialElement, BuiltInParameter.ROOM_AREA, out dArea) != null)
dArea = UnitUtil.ScaleArea(dArea);
IFCLevelInfo levelInfo = exporterIFC.GetLevelInfo(levelId);
string strSpaceNumber = null;
string strSpaceName = null;
string strSpaceDesc = null;
if (ParameterUtil.GetStringValueFromElement(spatialElement, BuiltInParameter.ROOM_NUMBER, out strSpaceNumber) == null)
strSpaceNumber = null;
if (ParameterUtil.GetStringValueFromElement(spatialElement, BuiltInParameter.ROOM_NAME, out strSpaceName) == null)
strSpaceName = null;
if (ParameterUtil.GetStringValueFromElement(spatialElement, BuiltInParameter.ALL_MODEL_INSTANCE_COMMENTS, out strSpaceDesc) == null)
strSpaceDesc = null;
string name = strSpaceNumber;
string longName = strSpaceName;
string desc = strSpaceDesc;
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle localPlacement = setter.LocalPlacement;
ElementType elemType = document.GetElement(spatialElement.GetTypeId()) as ElementType;
IFCInternalOrExternal internalOrExternal = CategoryUtil.IsElementExternal(spatialElement) ? IFCInternalOrExternal.External : IFCInternalOrExternal.Internal;
double scaledRoomHeight = GetScaledHeight(spatialElement, levelId, levelInfo);
if (scaledRoomHeight <= 0.0)
return false;
double bottomOffset;
ParameterUtil.GetDoubleValueFromElement(spatialElement, BuiltInParameter.ROOM_LOWER_OFFSET, out bottomOffset);
double elevation = (levelInfo != null) ? levelInfo.Elevation : 0.0;
XYZ zDir = new XYZ(0, 0, 1);
XYZ orig = new XYZ(0, 0, elevation + bottomOffset);
Plane plane = new Plane(zDir, orig); // room calculated as level offset.
GeometryElement geomElem = null;
bool isArea = (spatialElement is Area);
Area spatialElementAsArea = isArea ? (spatialElement as Area) : null;
if (spatialElement is Autodesk.Revit.DB.Architecture.Room)
{
Autodesk.Revit.DB.Architecture.Room room = spatialElement as Autodesk.Revit.DB.Architecture.Room;
geomElem = room.ClosedShell;
}
else if (spatialElement is Autodesk.Revit.DB.Mechanical.Space)
{
Autodesk.Revit.DB.Mechanical.Space space = spatialElement as Autodesk.Revit.DB.Mechanical.Space;
geomElem = space.ClosedShell;
}
else if (isArea)
{
Options geomOptions = GeometryUtil.GetIFCExportGeometryOptions();
geomElem = spatialElementAsArea.get_Geometry(geomOptions);
}
IFCAnyHandle spaceHnd = null;
string spatialElementName = null;
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
extraParams.SetLocalPlacement(localPlacement);
extraParams.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;
using (IFCTransaction transaction2 = new IFCTransaction(file))
{
IFCAnyHandle repHnd = null;
if (!ExporterCacheManager.ExportOptionsCache.Use2DRoomBoundaryForRoomVolumeCreation && geomElem != null)
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
repHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, spatialElement,
catId, geomElem, bodyExporterOptions, null, extraParams, false);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
extraParams.ClearOpenings();
}
else
{
IFCAnyHandle shapeRep = ExtrusionExporter.CreateExtrudedSolidFromCurveLoop(exporterIFC, null, curveLoops, plane, zDir, scaledRoomHeight);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(shapeRep))
return false;
IFCAnyHandle styledItemHnd = BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, document,
shapeRep, ElementId.InvalidElementId);
HashSet<IFCAnyHandle> bodyItems = new HashSet<IFCAnyHandle>();
bodyItems.Add(shapeRep);
shapeRep = RepresentationUtil.CreateSweptSolidRep(exporterIFC, spatialElement, catId, exporterIFC.Get3DContextHandle("Body"), bodyItems, null);
IList<IFCAnyHandle> shapeReps = new List<IFCAnyHandle>();
shapeReps.Add(shapeRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geomElem, Transform.Identity);
if (boundingBoxRep != null)
shapeReps.Add(boundingBoxRep);
repHnd = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
}
extraParams.ScaledHeight = scaledRoomHeight;
extraParams.ScaledArea = dArea;
spatialElementName = NamingUtil.GetNameOverride(spatialElement, name);
string spatialElementDescription = NamingUtil.GetDescriptionOverride(spatialElement, desc);
string spatialElementObjectType = NamingUtil.GetObjectTypeOverride(spatialElement, null);
string spatialElementLongName = NamingUtil.GetLongNameOverride(spatialElement, longName);
double? spaceElevationWithFlooring = null;
double elevationWithFlooring = 0.0;
if (ParameterUtil.GetDoubleValueFromElement(spatialElement, null, "IfcElevationWithFlooring", out elevationWithFlooring) != null)
spaceElevationWithFlooring = UnitUtil.ScaleLength(elevationWithFlooring);
spaceHnd = IFCInstanceExporter.CreateSpace(file, GUIDUtil.CreateGUID(spatialElement),
ExporterCacheManager.OwnerHistoryHandle,
spatialElementName, spatialElementDescription, spatialElementObjectType,
extraParams.GetLocalPlacement(), repHnd, spatialElementLongName, Toolkit.IFCElementComposition.Element,
internalOrExternal, spaceElevationWithFlooring);
transaction2.Commit();
}
if (spaceHnd != null)
{
productWrapper.AddSpace(spatialElement, spaceHnd, levelInfo, extraParams, true);
if (isArea)
{
Element areaScheme = spatialElementAsArea.AreaScheme;
if (areaScheme != null)
{
ElementId areaSchemeId = areaScheme.Id;
HashSet<IFCAnyHandle> areas = null;
if (!ExporterCacheManager.AreaSchemeCache.TryGetValue(areaSchemeId, out areas))
{
areas = new HashSet<IFCAnyHandle>();
ExporterCacheManager.AreaSchemeCache[areaSchemeId] = areas;
}
areas.Add(spaceHnd);
}
}
}
}
// Save room handle for later use/relationships
ExporterCacheManager.SpaceInfoCache.SetSpaceHandle(spatialElement, spaceHnd);
// Find Ceiling as a Space boundary and keep the relationship in a cache for use later
bool ret = GetCeilingSpaceBoundary(spatialElement, out results);
if (!MathUtil.IsAlmostZero(dArea) && !(ExporterCacheManager.ExportOptionsCache.ExportAsCOBIE) &&
!ExporterCacheManager.ExportOptionsCache.ExportAs2x3CoordinationView2 && !ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
{
bool isDesignGrossArea = (string.Compare(spatialElementName, "GSA Design Gross Area") > 0);
PropertyUtil.CreatePreCOBIEGSAQuantities(exporterIFC, spaceHnd, "GSA Space Areas", (isDesignGrossArea ? "GSA Design Gross Area" : "GSA BIM Area"), dArea);
}
// Export Classifications for SpatialElement for GSA/COBIE.
if (ExporterCacheManager.ExportOptionsCache.ExportAsCOBIE)
{
ProjectInfo projectInfo = document.ProjectInformation;
if (projectInfo != null)
CreateCOBIESpaceClassifications(exporterIFC, file, spaceHnd, projectInfo, spatialElement);
}
return true;
}
/// <summary>
/// Exports an element as IFC railing.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="element">
/// The element to be exported.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportRailing(ExporterIFC exporterIFC, Element element, GeometryElement geomElem, string ifcEnumType, ProductWrapper productWrapper)
{
ElementType elemType = element.Document.GetElement(element.GetTypeId()) as ElementType;
IFCFile file = exporterIFC.GetFile();
Options geomOptions = GeometryUtil.GetIFCExportGeometryOptions();
using (IFCTransaction transaction = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
StairRampContainerInfo stairRampInfo = null;
ElementId hostId = GetStairOrRampHostId(exporterIFC, element as Railing);
if (hostId != ElementId.InvalidElementId)
{
stairRampInfo = ExporterCacheManager.StairRampContainerInfoCache.GetStairRampContainerInfo(hostId);
IFCAnyHandle stairRampLocalPlacement = stairRampInfo.LocalPlacements[0];
Transform relTrf = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(stairRampLocalPlacement, localPlacement);
Transform inverseTrf = relTrf.Inverse;
IFCAnyHandle railingLocalPlacement = ExporterUtil.CreateLocalPlacement(file, stairRampLocalPlacement,
inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
localPlacement = railingLocalPlacement;
}
ecData.SetLocalPlacement(localPlacement);
SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geomElem);
IList <Solid> solids = solidMeshInfo.GetSolids();
IList <Mesh> meshes = solidMeshInfo.GetMeshes();
Railing railingElem = element as Railing;
IList <ElementId> subElementIds = CollectSubElements(railingElem);
foreach (ElementId subElementId in subElementIds)
{
Element subElement = railingElem.Document.GetElement(subElementId);
if (subElement != null)
{
GeometryElement subElementGeom = GeometryUtil.GetOneLevelGeometryElement(subElement.get_Geometry(geomOptions), 0);
SolidMeshGeometryInfo subElementSolidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(subElementGeom);
IList <Solid> subElementSolids = subElementSolidMeshInfo.GetSolids();
IList <Mesh> subElementMeshes = subElementSolidMeshInfo.GetMeshes();
foreach (Solid subElementSolid in subElementSolids)
{
solids.Add(subElementSolid);
}
foreach (Mesh subElementMesh in subElementMeshes)
{
meshes.Add(subElementMesh);
}
}
}
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
BodyData bodyData = null;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
//bodyExporterOptions.UseGroupsIfPossible = true;
//bodyExporterOptions.UseMappedGeometriesIfPossible = true;
if (solids.Count > 0 || meshes.Count > 0)
{
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId, solids, meshes, bodyExporterOptions, ecData);
}
else
{
IList <GeometryObject> geomlist = new List <GeometryObject>();
geomlist.Add(geomElem);
bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId, geomlist, bodyExporterOptions, ecData);
}
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
if (ecData != null)
{
ecData.ClearOpenings();
}
return;
}
IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
representations.Add(bodyRep);
IList <GeometryObject> geomObjects = new List <GeometryObject>();
foreach (Solid solid in solids)
{
geomObjects.Add(solid);
}
foreach (Mesh mesh in meshes)
{
geomObjects.Add(mesh);
}
Transform boundingBoxTrf = (bodyData.OffsetTransform != null) ? bodyData.OffsetTransform.Inverse : Transform.Identity;
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geomObjects, boundingBoxTrf);
if (boundingBoxRep != null)
{
representations.Add(boundingBoxRep);
}
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, exporterIFC.GetFamilyName());
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string railingType = IFCValidateEntry.GetValidIFCType(element, ifcEnumType);
IFCAnyHandle railing = IFCInstanceExporter.CreateRailing(file, instanceGUID, ownerHistory,
instanceName, instanceDescription, instanceObjectType, ecData.GetLocalPlacement(),
prodRep, instanceTag, railingType);
bool associateToLevel = (hostId == ElementId.InvalidElementId);
productWrapper.AddElement(element, railing, setter, ecData, associateToLevel);
OpeningUtil.CreateOpeningsIfNecessary(railing, element, ecData, bodyData.OffsetTransform,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
CategoryUtil.CreateMaterialAssociations(exporterIFC, railing, bodyData.MaterialIds);
// Create multi-story duplicates of this railing.
if (stairRampInfo != null)
{
stairRampInfo.AddComponent(0, railing);
List <IFCAnyHandle> stairHandles = stairRampInfo.StairOrRampHandles;
for (int ii = 1; ii < stairHandles.Count; ii++)
{
IFCAnyHandle railingLocalPlacement = stairRampInfo.LocalPlacements[ii];
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(railingLocalPlacement))
{
IFCAnyHandle railingHndCopy = CopyRailingHandle(exporterIFC, element, catId, railingLocalPlacement, railing);
stairRampInfo.AddComponent(ii, railingHndCopy);
productWrapper.AddElement(element, railingHndCopy, (IFCLevelInfo)null, ecData, false);
CategoryUtil.CreateMaterialAssociations(exporterIFC, railingHndCopy, bodyData.MaterialIds);
}
}
ExporterCacheManager.StairRampContainerInfoCache.AddStairRampContainerInfo(hostId, stairRampInfo);
}
}
transaction.Commit();
}
}
}
/// <summary>
/// Exports a roof to IfcRoof.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="ifcEnumType">The roof type.</param>
/// <param name="roof">The roof element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportRoof(ExporterIFC exporterIFC, string ifcEnumType, Element roof, GeometryElement geometryElement,
ProductWrapper productWrapper)
{
if (roof == null || geometryElement == null)
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
// Check for containment override
IFCAnyHandle overrideContainerHnd = null;
ElementId overrideContainerId = ParameterUtil.OverrideContainmentParameter(exporterIFC, roof, out overrideContainerHnd);
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, roof, null, null, overrideContainerId, overrideContainerHnd))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
// If the roof is an in-place family, we will allow any arbitrary orientation. While this may result in some
// in-place "cubes" exporting with the wrong direction, it is unlikely that an in-place family would be
// used for this reason in the first place.
ecData.PossibleExtrusionAxes = (roof is FamilyInstance) ? IFCExtrusionAxes.TryXYZ : IFCExtrusionAxes.TryZ;
ecData.AreInnerRegionsOpenings = true;
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(roof);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
BodyData bodyData;
IFCAnyHandle representation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, roof,
categoryId, geometryElement, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(representation))
{
ecData.ClearOpenings();
return;
}
bool exportSlab = ecData.ScaledLength > MathUtil.Eps();
string guid = GUIDUtil.CreateGUID(roof);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
//string predefinedType = GetIFCRoofType(ifcEnumType);
string predefinedType = IFCValidateEntry.GetValidIFCPredefinedTypeType(ifcEnumType, "NOTDEFINED", IFCEntityType.IfcRoofType.ToString());
IFCAnyHandle roofHnd = IFCInstanceExporter.CreateRoof(exporterIFC, roof, guid, ownerHistory,
localPlacement, exportSlab ? null : representation, predefinedType);
// Export IfcRoofType
IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcRoof, IFCEntityType.IfcRoofType, predefinedType);
if (exportInfo.ExportType != IFCEntityType.UnKnown)
{
string overridePDefType;
if (ParameterUtil.GetStringValueFromElementOrSymbol(roof, "IfcExportType", out overridePDefType) == null) // change IFCType to consistent parameter of IfcExportType
{
if (ParameterUtil.GetStringValueFromElementOrSymbol(roof, "IfcType", out overridePDefType) == null) // support IFCType for legacy support
{
if (string.IsNullOrEmpty(predefinedType))
{
predefinedType = "NOTDEFINED";
}
}
}
if (!string.IsNullOrEmpty(overridePDefType))
{
exportInfo.ValidatedPredefinedType = overridePDefType;
}
else
{
exportInfo.ValidatedPredefinedType = predefinedType;
}
IFCAnyHandle typeHnd = ExporterUtil.CreateGenericTypeFromElement(roof, exportInfo, file, ownerHistory, predefinedType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(typeHnd, roofHnd);
}
productWrapper.AddElement(roof, roofHnd, placementSetter.LevelInfo, ecData, true, exportInfo);
// will export its host object materials later if it is a roof
if (!(roof is RoofBase))
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, roofHnd, bodyData.MaterialIds);
}
if (exportSlab)
{
string slabGUID = GUIDUtil.CreateSubElementGUID(roof, (int)IFCRoofSubElements.RoofSlabStart);
string slabName = IFCAnyHandleUtil.GetStringAttribute(roofHnd, "Name") + ":1";
IFCAnyHandle slabLocalPlacementHnd = ExporterUtil.CopyLocalPlacement(file, localPlacement);
IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(exporterIFC, roof, slabGUID, ownerHistory,
slabLocalPlacementHnd, representation, slabRoofPredefinedType);
IFCAnyHandleUtil.OverrideNameAttribute(slabHnd, slabName);
Transform offsetTransform = (bodyData != null) ? bodyData.OffsetTransform : Transform.Identity;
OpeningUtil.CreateOpeningsIfNecessary(slabHnd, roof, ecData, offsetTransform,
exporterIFC, slabLocalPlacementHnd, placementSetter, productWrapper);
ExporterUtil.RelateObject(exporterIFC, roofHnd, slabHnd);
IFCExportInfoPair slabRoofExportType = new IFCExportInfoPair(IFCEntityType.IfcSlab, slabRoofPredefinedType);
productWrapper.AddElement(null, slabHnd, placementSetter.LevelInfo, ecData, false, slabRoofExportType);
CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, bodyData.MaterialIds);
// Create type
IFCAnyHandle slabRoofTypeHnd = ExporterUtil.CreateGenericTypeFromElement(roof, slabRoofExportType, exporterIFC.GetFile(), ownerHistory, slabRoofPredefinedType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(slabRoofTypeHnd, slabHnd);
}
}
tr.Commit();
}
}
}
/// <summary>
/// Exports an element to IfcPile.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="ifcEnumType">The string value represents the IFC type.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportPile(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement,
string ifcEnumType, ProductWrapper productWrapper)
{
// export parts or not
bool exportParts = PartExporter.CanExportParts(element);
if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(setter.LocalPlacement);
IFCAnyHandle prodRep = null;
ElementId matId = ElementId.InvalidElementId;
if (!exportParts)
{
ElementId catId = CategoryUtil.GetSafeCategoryId(element);
matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
element, catId, geometryElement, bodyExporterOptions, null, ecData, true);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
{
ecData.ClearOpenings();
return;
}
}
string instanceGUID = GUIDUtil.CreateGUID(element);
string instanceName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
string instanceObjectType = NamingUtil.GetObjectTypeOverride(element, exporterIFC.GetFamilyName());
string instanceTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
string pileType = IFCValidateEntry.GetValidIFCType(element, ifcEnumType);
IFCAnyHandle pile = IFCInstanceExporter.CreatePile(file, instanceGUID, exporterIFC.GetOwnerHistoryHandle(),
instanceName, instanceDescription, instanceObjectType, ecData.GetLocalPlacement(), prodRep, instanceTag, pileType, null);
if (exportParts)
{
PartExporter.ExportHostPart(exporterIFC, element, pile, productWrapper, setter, setter.LocalPlacement, null);
}
else
{
if (matId != ElementId.InvalidElementId)
{
CategoryUtil.CreateMaterialAssociation(exporterIFC, pile, matId);
}
}
productWrapper.AddElement(element, pile, setter, ecData, true);
OpeningUtil.CreateOpeningsIfNecessary(pile, element, ecData, null,
exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
}
}
tr.Commit();
}
}
/// <summary>
/// Exports a gutter element.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportGutter(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(setter.LocalPlacement);
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions();
IFCAnyHandle bodyRep = BodyExporter.ExportBody(exporterIFC, element, categoryId, ElementId.InvalidElementId,
geometryElement, bodyExporterOptions, ecData).RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
if (ecData != null)
ecData.ClearOpenings();
return;
}
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string originalTag = NamingUtil.CreateIFCElementId(element);
// In Revit, we don't have a corresponding type, so we create one for every gutter.
IFCAnyHandle origin = ExporterUtil.CreateAxis2Placement3D(file);
IFCAnyHandle repMap3dHnd = IFCInstanceExporter.CreateRepresentationMap(file, origin, bodyRep);
List<IFCAnyHandle> repMapList = new List<IFCAnyHandle>();
repMapList.Add(repMap3dHnd);
string elementTypeName = NamingUtil.CreateIFCObjectName(exporterIFC, element);
string typeGuid = GUIDUtil.CreateSubElementGUID(element, (int) IFCHostedSweepSubElements.PipeSegmentType);
IFCAnyHandle style = IFCInstanceExporter.CreatePipeSegmentType(file, typeGuid, ownerHistory,
elementTypeName, null, null, null, repMapList, originalTag,
elementTypeName, IFCPipeSegmentType.Gutter);
List<IFCAnyHandle> representationMaps = GeometryUtil.GetRepresentationMaps(style);
IFCAnyHandle mappedItem = ExporterUtil.CreateDefaultMappedItem(file, representationMaps[0]);
ISet<IFCAnyHandle> representations = new HashSet<IFCAnyHandle>();
representations.Add(mappedItem);
IFCAnyHandle bodyMappedItemRep = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC,
element, categoryId, exporterIFC.Get3DContextHandle("Body"), representations);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyMappedItemRep))
return;
List<IFCAnyHandle> shapeReps = new List<IFCAnyHandle>();
shapeReps.Add(bodyMappedItemRep);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
if (boundingBoxRep != null)
shapeReps.Add(boundingBoxRep);
IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
IFCAnyHandle localPlacementToUse;
ElementId roomId = setter.UpdateRoomRelativeCoordinates(element, out localPlacementToUse);
if (roomId == ElementId.InvalidElementId)
localPlacementToUse = ecData.GetLocalPlacement();
string guid = GUIDUtil.CreateGUID(element);
string name = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string description = NamingUtil.GetDescriptionOverride(element, null);
string objectType = NamingUtil.GetObjectTypeOverride(element, elementTypeName);
string tag = NamingUtil.GetTagOverride(element, originalTag);
IFCAnyHandle elemHnd = IFCInstanceExporter.CreateFlowSegment(file, guid,
ownerHistory, name, description, objectType, localPlacementToUse, prodRep, tag);
bool containedInSpace = (roomId != ElementId.InvalidElementId);
productWrapper.AddElement(element, elemHnd, setter.LevelInfo, ecData, !containedInSpace);
if (containedInSpace)
ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomId, elemHnd);
// Associate segment with type.
ExporterCacheManager.TypeRelationsCache.Add(style, elemHnd);
OpeningUtil.CreateOpeningsIfNecessary(elemHnd, element, ecData, null,
exporterIFC, localPlacementToUse, setter, productWrapper);
}
tr.Commit();
}
}
}
/// <summary>
/// Exports a ramp to IfcRamp, without decomposing into separate runs and landings.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="ifcEnumType">The ramp type.</param>
/// <param name="ramp">The ramp element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="numFlights">The number of flights for a multistory ramp.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void ExportRamp(ExporterIFC exporterIFC, string ifcEnumType, Element ramp, GeometryElement geometryElement,
int numFlights, ProductWrapper productWrapper)
{
if (ramp == null || geometryElement == null)
{
return;
}
// Check the intended IFC entity or type name is in the exclude list specified in the UI
Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcRamp;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
// TESTING
foreach (GeometryObject geomObj in geometryElement)
{
Visibility visibility = geomObj.Visibility;
}
IFCFile file = exporterIFC.GetFile();
ElementId categoryId = CategoryUtil.GetSafeCategoryId(ramp);
using (IFCTransaction tr = new IFCTransaction(file))
{
using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, ramp))
{
IFCAnyHandle contextOfItemsFootPrint = exporterIFC.Get3DContextHandle("FootPrint");
IFCAnyHandle contextOfItemsAxis = exporterIFC.Get3DContextHandle("Axis");
Transform trf = ExporterIFCUtils.GetUnscaledTransform(exporterIFC, placementSetter.LocalPlacement);
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
IList <(Solid body, Face largestTopFace)> rampFlights = null;
IList <Solid> landings = null;
if (IdentifyRampFlightAndLanding(geometryElement, out rampFlights, out landings))
{
string rampGUID = GUIDUtil.CreateGUID(ramp);
IFCAnyHandle rampLocalPlacement = placementSetter.LocalPlacement;
string predefType = "NOTDEFINED"; //Temporary
IFCAnyHandle rampContainerHnd = IFCInstanceExporter.CreateRamp(exporterIFC, ramp, rampGUID, ownerHistory, rampLocalPlacement, null, predefType);
// Create appropriate type
IFCExportInfoPair exportType = new IFCExportInfoPair();
exportType.SetValueWithPair(IFCEntityType.IfcRamp);
IFCAnyHandle rampTypeHnd = ExporterUtil.CreateGenericTypeFromElement(ramp, exportType, exporterIFC.GetFile(), ownerHistory, predefType, productWrapper);
ExporterCacheManager.TypeRelationsCache.Add(rampTypeHnd, rampContainerHnd);
productWrapper.AddElement(ramp, rampContainerHnd, placementSetter.LevelInfo, null, true);
//Breakdown the Ramp into its components: RampFlights and Landings
int rampFlightIndex = 0;
int landingIndex = 0;
HashSet <IFCAnyHandle> rampComponents = new HashSet <IFCAnyHandle>();
foreach ((Solid body, Face topFace)rampFlight in rampFlights)
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.AllowVerticalOffsetOfBReps = false;
ecData.SetLocalPlacement(ExporterUtil.CreateLocalPlacement(file, placementSetter.LocalPlacement, null));
ecData.ReuseLocalPlacement = true;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
BodyData bodyData = BodyExporter.ExportBody(exporterIFC, ramp, categoryId, ElementId.InvalidElementId, rampFlight.body, bodyExporterOptions, ecData);
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
ecData.ClearOpenings();
continue;
}
IList <IFCAnyHandle> reps = new List <IFCAnyHandle>();
reps.Add(bodyRep);
//if (!ExporterCacheManager.ExportOptionsCache.ExportAsCoordinationView2)
//{
// CreateWalkingLineAndFootprint(exporterIFC, run, bodyData, categoryId, trf, ref reps);
//}
Transform boundingBoxTrf = (bodyData.OffsetTransform == null) ? Transform.Identity : bodyData.OffsetTransform.Inverse;
IList <GeometryObject> solidList = new List <GeometryObject>();
solidList.Add(rampFlight.body);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, solidList, boundingBoxTrf);
if (boundingBoxRep != null)
{
reps.Add(boundingBoxRep);
}
IFCAnyHandle representation = IFCInstanceExporter.CreateProductDefinitionShape(exporterIFC.GetFile(), null, null, reps);
rampFlightIndex++;
string flightGUID = GUIDUtil.CreateSubElementGUID(ramp, rampFlightIndex);
string origFlightName = IFCAnyHandleUtil.GetStringAttribute(rampContainerHnd, "Name") + " " + rampFlightIndex;
string flightName = NamingUtil.GetOverrideStringValue(ramp, "IfcRampFlight.Name (" + rampFlightIndex + ")", origFlightName);
IFCAnyHandle flightLocalPlacement = ecData.GetLocalPlacement();
string flightPredefType = NamingUtil.GetOverrideStringValue(ramp, "IfcRampFlight.PredefinedType (" + rampFlightIndex + ")", null);
IFCAnyHandle rampFlightHnd = IFCInstanceExporter.CreateRampFlight(exporterIFC, null, flightGUID, ownerHistory, flightLocalPlacement,
representation, flightPredefType);
IFCAnyHandleUtil.OverrideNameAttribute(rampFlightHnd, flightName);
rampComponents.Add(rampFlightHnd);
// Create type
IFCExportInfoPair flightEportType = new IFCExportInfoPair();
flightEportType.SetValueWithPair(IFCEntityType.IfcRampFlight);
IFCAnyHandle flightTypeHnd = IFCInstanceExporter.CreateGenericIFCType(flightEportType, null, exporterIFC.GetFile(), null, null, flightPredefType);
IFCAnyHandleUtil.OverrideNameAttribute(flightTypeHnd, flightName);
ExporterCacheManager.TypeRelationsCache.Add(flightTypeHnd, rampFlightHnd);
CategoryUtil.CreateMaterialAssociation(exporterIFC, rampFlightHnd, bodyData.MaterialIds);
IFCAnyHandle psetRampFlightCommonHnd = CreatePSetRampFlightCommon(exporterIFC, file, ramp, rampFlightIndex, rampFlight.topFace);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(psetRampFlightCommonHnd))
{
HashSet <IFCAnyHandle> relatedObjects = new HashSet <IFCAnyHandle>()
{
rampFlightHnd
};
ExporterUtil.CreateRelDefinesByProperties(file, GUIDUtil.CreateGUID(), ownerHistory, null, null, relatedObjects, psetRampFlightCommonHnd);
}
}
}
foreach (Solid landing in landings)
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.AllowVerticalOffsetOfBReps = false;
ecData.SetLocalPlacement(ExporterUtil.CreateLocalPlacement(file, placementSetter.LocalPlacement, null));
ecData.ReuseLocalPlacement = true;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
BodyData bodyData = BodyExporter.ExportBody(exporterIFC, ramp, categoryId, ElementId.InvalidElementId, landing, bodyExporterOptions, ecData);
IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
{
ecData.ClearOpenings();
continue;
}
IList <IFCAnyHandle> reps = new List <IFCAnyHandle>();
reps.Add(bodyRep);
//if (!ExporterCacheManager.ExportOptionsCache.ExportAsCoordinationView2)
//{
// CreateWalkingLineAndFootprint(exporterIFC, run, bodyData, categoryId, trf, ref reps);
//}
Transform boundingBoxTrf = (bodyData.OffsetTransform == null) ? Transform.Identity : bodyData.OffsetTransform.Inverse;
IList <GeometryObject> solidList = new List <GeometryObject>();
solidList.Add(landing);
IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, solidList, boundingBoxTrf);
if (boundingBoxRep != null)
{
reps.Add(boundingBoxRep);
}
IFCAnyHandle representation = IFCInstanceExporter.CreateProductDefinitionShape(exporterIFC.GetFile(), null, null, reps);
landingIndex++;
string landingGUID = GUIDUtil.CreateSubElementGUID(ramp, landingIndex);
string origLandingName = IFCAnyHandleUtil.GetStringAttribute(rampContainerHnd, "Name") + " " + landingIndex;
string landingName = NamingUtil.GetOverrideStringValue(ramp, "IfcRampLanding.Name (" + landingIndex + ")", origLandingName);
IFCAnyHandle landingLocalPlacement = ecData.GetLocalPlacement();
string landingPredefType = "LANDING";
IFCAnyHandle rampLandingHnd = IFCInstanceExporter.CreateSlab(exporterIFC, ramp, landingGUID, ownerHistory, landingLocalPlacement,
representation, landingPredefType);
IFCAnyHandleUtil.OverrideNameAttribute(rampLandingHnd, landingName);
rampComponents.Add(rampLandingHnd);
// Create type
IFCExportInfoPair landingEportType = new IFCExportInfoPair();
landingEportType.SetValueWithPair(IFCEntityType.IfcSlab);
IFCAnyHandle landingTypeHnd = IFCInstanceExporter.CreateGenericIFCType(landingEportType, null, exporterIFC.GetFile(), null, null, landingPredefType);
IFCAnyHandleUtil.OverrideNameAttribute(landingTypeHnd, landingName);
ExporterCacheManager.TypeRelationsCache.Add(landingTypeHnd, rampLandingHnd);
CategoryUtil.CreateMaterialAssociation(exporterIFC, rampLandingHnd, bodyData.MaterialIds);
IFCAnyHandle psetSlabCommonHnd = CreatePSetRampLandingCommon(exporterIFC, file, ramp, landingIndex);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(psetSlabCommonHnd))
{
HashSet <IFCAnyHandle> relatedObjects = new HashSet <IFCAnyHandle>()
{
rampLandingHnd
};
ExporterUtil.CreateRelDefinesByProperties(file, GUIDUtil.CreateGUID(), ownerHistory, null, null, relatedObjects, psetSlabCommonHnd);
}
}
}
if (rampComponents.Count > 0)
{
IFCInstanceExporter.CreateRelAggregates(file, GUIDUtil.CreateGUID(), ownerHistory, null, null, rampContainerHnd, rampComponents);
}
}
else
{
using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
{
ecData.SetLocalPlacement(placementSetter.LocalPlacement);
ecData.ReuseLocalPlacement = false;
GeometryElement rampGeom = GeometryUtil.GetOneLevelGeometryElement(geometryElement, numFlights);
BodyData bodyData;
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
IFCAnyHandle representation = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC,
ramp, categoryId, rampGeom, bodyExporterOptions, null, ecData, out bodyData);
if (IFCAnyHandleUtil.IsNullOrHasNoValue(representation))
{
ecData.ClearOpenings();
return;
}
string containedRampGuid = GUIDUtil.CreateSubElementGUID(ramp, (int)IFCRampSubElements.ContainedRamp);
IFCAnyHandle containedRampLocalPlacement = ExporterUtil.CreateLocalPlacement(file, ecData.GetLocalPlacement(), null);
string rampType = GetIFCRampType(ifcEnumType);
List <IFCAnyHandle> components = new List <IFCAnyHandle>();
IList <IFCExtrusionCreationData> componentExtrusionData = new List <IFCExtrusionCreationData>();
IFCAnyHandle containedRampHnd = IFCInstanceExporter.CreateRamp(exporterIFC, ramp, containedRampGuid, ownerHistory,
containedRampLocalPlacement, representation, rampType);
components.Add(containedRampHnd);
componentExtrusionData.Add(ecData);
//productWrapper.AddElement(containedRampHnd, placementSetter.LevelInfo, ecData, false);
CategoryUtil.CreateMaterialAssociation(exporterIFC, containedRampHnd, bodyData.MaterialIds);
string guid = GUIDUtil.CreateGUID(ramp);
IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
IFCAnyHandle rampHnd = IFCInstanceExporter.CreateRamp(exporterIFC, ramp, guid, ownerHistory,
localPlacement, null, rampType);
productWrapper.AddElement(ramp, rampHnd, placementSetter.LevelInfo, ecData, true);
StairRampContainerInfo stairRampInfo = new StairRampContainerInfo(rampHnd, components, localPlacement);
ExporterCacheManager.StairRampContainerInfoCache.AddStairRampContainerInfo(ramp.Id, stairRampInfo);
ExportMultistoryRamp(exporterIFC, ramp, numFlights, rampHnd, components, componentExtrusionData, placementSetter,
productWrapper);
}
}
}
tr.Commit();
}
}
