/// <summary>
/// Create the handle corresponding to the "Axis" IfcRepresentation for a beam, if possible.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC class.</param>
/// <param name="element">The beam element.</param>
/// <param name="catId">The beam category id.</param>
/// <param name="axisInfo">The optional beam axis information.</param>
/// <param name="offsetTransform">The optional offset transform applied to the "Body" representation.</param>
/// <param name="elevation">The optional level elevation.</param>
/// <returns>The handle, or null if not created.</returns>
private static IFCAnyHandle CreateBeamAxis(ExporterIFC exporterIFC, Element element, ElementId catId, BeamAxisInfo axisInfo, Transform offsetTransform, double elevation)
{
if (axisInfo == null)
{
return(null);
}
Curve curve = axisInfo.Axis;
XYZ projDir = axisInfo.AxisNormal;
Transform lcs = axisInfo.LCSAsTransform;
string representationTypeOpt = "Curve2D"; // This is by IFC2x2+ convention.
XYZ curveOffset = XYZ.Zero;
if (offsetTransform != null)
{
curveOffset = -(offsetTransform.Origin);
curveOffset -= new XYZ(0, 0, elevation);
}
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 = -lcs.Origin;
}
Transform offsetLCS = new Transform(lcs);
offsetLCS.Origin = XYZ.Zero;
IList <IFCAnyHandle> axis_items = null;
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
IFCAnyHandle axisHnd = GeometryUtil.CreatePolyCurveFromCurve(exporterIFC, curve);
axis_items = new List <IFCAnyHandle>();
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(axisHnd))
{
axis_items.Add(axisHnd);
representationTypeOpt = "Curve3D"; // We use Curve3D for IFC4RV Axis
}
}
else
{
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, offsetLCS, projDir, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, curve, curveOffset, true);
axis_items = info.GetCurves();
}
if (axis_items.Count > 0)
{
string identifierOpt = "Axis"; // This is by IFC2x2+ convention.
IFCAnyHandle axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, exporterIFC.Get3DContextHandle(identifierOpt),
identifierOpt, representationTypeOpt, axis_items);
return(axisRep);
}
return(null);
}
/// <summary>
/// Create the handle corresponding to the "Axis" IfcRepresentation for a beam, if possible.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC class.</param>
/// <param name="element">The beam element.</param>
/// <param name="catId">The beam category id.</param>
/// <param name="axisInfo">The optional beam axis information.</param>
/// <param name="offsetTransform">The optional offset transform applied to the "Body" representation.</param>
/// <returns>The handle, or null if not created.</returns>
private static IFCAnyHandle CreateBeamAxis(ExporterIFC exporterIFC, Element element, ElementId catId, BeamAxisInfo axisInfo, Transform offsetTransform)
{
if (axisInfo == null)
{
return(null);
}
Curve curve = axisInfo.Axis;
XYZ projDir = axisInfo.AxisNormal;
Transform lcs = axisInfo.LCSAsTransform;
XYZ curveOffset = XYZ.Zero;
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 = -lcs.Origin;
}
Transform offsetLCS = new Transform(lcs);
offsetLCS.Origin = XYZ.Zero;
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, offsetLCS, 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.
string representationTypeOpt = "Curve2D"; // This is by IFC2x2+ convention.
IFCAnyHandle axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, exporterIFC.Get3DContextHandle(identifierOpt),
identifierOpt, representationTypeOpt, axis_items);
return(axisRep);
}
return(null);
}
/// <summary>
/// Get the handles of Grid Axes.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="sameDirectionAxes">The grid axes in the same direction of one level.</param>
/// <param name="representations">The representation of grid axis.</param>
/// <returns>The list of handles of grid axes.</returns>
private static List <IFCAnyHandle> CreateIFCGridAxisAndRepresentations(ExporterIFC exporterIFC, ProductWrapper productWrapper, IList <Grid> sameDirectionAxes,
IList <IFCAnyHandle> representations, GridRepresentationData gridRepresentationData)
{
if (sameDirectionAxes.Count == 0)
{
return(null);
}
IDictionary <ElementId, List <IFCAnyHandle> > gridAxisMap = new Dictionary <ElementId, List <IFCAnyHandle> >();
IDictionary <ElementId, List <IFCAnyHandle> > gridRepMap = new Dictionary <ElementId, List <IFCAnyHandle> >();
IFCFile ifcFile = exporterIFC.GetFile();
Grid baseGrid = sameDirectionAxes[0];
Transform lcs = Transform.Identity;
List <IFCAnyHandle> ifcGridAxes = new List <IFCAnyHandle>();
foreach (Grid grid in sameDirectionAxes)
{
// Because the IfcGrid is a collection of Revit Grids, any one of them can override the IFC CAD Layer.
// We will take the first name, and not do too much checking.
if (string.IsNullOrWhiteSpace(gridRepresentationData.m_IFCCADLayer))
{
ParameterUtil.GetStringValueFromElementOrSymbol(grid, "IFCCadLayer", out gridRepresentationData.m_IFCCADLayer);
}
// Get the handle of curve.
XYZ projectionDirection = lcs.BasisZ;
IFCAnyHandle axisCurve;
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
axisCurve = GeometryUtil.CreatePolyCurveFromCurve(exporterIFC, grid.Curve, lcs, projectionDirection);
}
else
{
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, lcs, projectionDirection, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, grid.Curve, XYZ.Zero, false);
IList <IFCAnyHandle> curves = info.GetCurves();
if (curves.Count != 1)
{
throw new Exception("IFC: expected 1 curve when export curve element.");
}
axisCurve = curves[0];
}
bool sameSense = true;
if (baseGrid.Curve is Line)
{
Line baseLine = baseGrid.Curve as Line;
Line axisLine = grid.Curve as Line;
sameSense = (axisLine.Direction.IsAlmostEqualTo(baseLine.Direction));
}
IFCAnyHandle ifcGridAxis = IFCInstanceExporter.CreateGridAxis(ifcFile, grid.Name, axisCurve, sameSense);
ifcGridAxes.Add(ifcGridAxis);
HashSet <IFCAnyHandle> AxisCurves = new HashSet <IFCAnyHandle>();
AxisCurves.Add(axisCurve);
IFCAnyHandle repItemHnd = IFCInstanceExporter.CreateGeometricCurveSet(ifcFile, AxisCurves);
// get the weight and color from the GridType to create the curve style.
GridType gridType = grid.Document.GetElement(grid.GetTypeId()) as GridType;
IFCData curveWidth = null;
if (ExporterCacheManager.ExportOptionsCache.ExportAnnotations)
{
int outWidth;
double width =
(ParameterUtil.GetIntValueFromElement(gridType, BuiltInParameter.GRID_END_SEGMENT_WEIGHT, out outWidth) != null) ? outWidth : 1;
curveWidth = IFCDataUtil.CreateAsPositiveLengthMeasure(width);
}
if (!ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
int outColor;
int color =
(ParameterUtil.GetIntValueFromElement(gridType, BuiltInParameter.GRID_END_SEGMENT_COLOR, out outColor) != null) ? outColor : 0;
double blueVal = 0.0;
double greenVal = 0.0;
double redVal = 0.0;
GeometryUtil.GetRGBFromIntValue(color, out blueVal, out greenVal, out redVal);
IFCAnyHandle colorHnd = IFCInstanceExporter.CreateColourRgb(ifcFile, null, redVal, greenVal, blueVal);
BodyExporter.CreateCurveStyleForRepItem(exporterIFC, repItemHnd, curveWidth, colorHnd);
}
HashSet <IFCAnyHandle> curveSet = new HashSet <IFCAnyHandle>();
curveSet.Add(repItemHnd);
gridRepresentationData.m_Grids.Add(grid);
gridRepresentationData.m_curveSets.Add(curveSet);
}
return(ifcGridAxes);
}
/// <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, PlacementSetter setter, IFCAnyHandle localPlacement)
{
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)
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(false, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
IFCAnyHandle triFaceSet = BodyExporter.ExportBodyAsTessellatedFaceSet(exporterIFC, subElem, bodyExporterOptions, geomElem);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(triFaceSet))
{
bodyItems.Add(triFaceSet);
useFallbackBREP = false; // no need to do Brep since it is successful
}
}
// Export AdvancedFace before use fallback BREP
else if (ExporterCacheManager.ExportOptionsCache.ExportAs4DesignTransferView)
{
BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(false, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
IFCAnyHandle advancedBRep = BodyExporter.ExportBodyAsAdvancedBrep(exporterIFC, subElem, bodyExporterOptions, 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, 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 && !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>
/// 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 a curve element to IFC curve annotation.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="curveElement">
/// The curve element to be exported.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportCurveElement(ExporterIFC exporterIFC, CurveElement curveElement, GeometryElement geometryElement,
ProductWrapper productWrapper)
{
if (geometryElement == null || !ShouldCurveElementBeExported(curveElement))
{
return;
}
SketchPlane sketchPlane = curveElement.SketchPlane;
if (sketchPlane == 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.IfcAnnotation;
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, curveElement))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
IFCAnyHandle axisPlacement = GeometryUtil.GetRelativePlacementFromLocalPlacement(localPlacement);
Plane planeSK = sketchPlane.GetPlane();
XYZ projDir = planeSK.Normal;
XYZ origin = planeSK.Origin;
bool useOffsetTrf = false;
if (projDir.IsAlmostEqualTo(XYZ.BasisZ))
{
XYZ offset = XYZ.BasisZ * setter.Offset;
origin -= offset;
}
else
{
useOffsetTrf = true;
}
Transform curveLCS = GeometryUtil.CreateTransformFromPlane(planeSK);
curveLCS.Origin = origin;
IList <IFCAnyHandle> curves = null;
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
Transform trf = null;
if (useOffsetTrf)
{
XYZ offsetOrig = -XYZ.BasisZ * setter.Offset;
trf = Transform.CreateTranslation(offsetOrig);
}
curves = new List <IFCAnyHandle>();
//Curve curve = (geometryElement as GeometryObject) as Curve;
List <Curve> curvesFromGeomElem = GeometryUtil.GetCurvesFromGeometryElement(geometryElement);
foreach (Curve curve in curvesFromGeomElem)
{
IFCAnyHandle curveHnd = GeometryUtil.CreatePolyCurveFromCurve(exporterIFC, curve, trf);
//IList<int> segmentIndex = null;
//IList<IList<double>> pointList = GeometryUtil.PointListFromCurve(exporterIFC, curve, trf, null, out segmentIndex);
//// For now because of no support in creating IfcLineIndex and IfcArcIndex yet, it is set to null
////IList<IList<int>> segmentIndexList = new List<IList<int>>();
////segmentIndexList.Add(segmentIndex);
//IList<IList<int>> segmentIndexList = null;
//IFCAnyHandle pointListHnd = IFCInstanceExporter.CreateCartesianPointList3D(file, pointList);
//IFCAnyHandle curveHnd = IFCInstanceExporter.CreateIndexedPolyCurve(file, pointListHnd, segmentIndexList, false);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(curveHnd))
{
curves.Add(curveHnd);
}
}
}
else
{
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, curveLCS, projDir, false);
if (useOffsetTrf)
{
XYZ offsetOrig = -XYZ.BasisZ * setter.Offset;
Transform trf = Transform.CreateTranslation(offsetOrig);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, geometryElement, XYZ.Zero, false, trf);
}
else
{
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, geometryElement, XYZ.Zero, false);
}
curves = info.GetCurves();
}
if (curves.Count != 1)
{
throw new Exception("IFC: expected 1 curve when export curve element.");
}
HashSet <IFCAnyHandle> curveSet = new HashSet <IFCAnyHandle>(curves);
IFCAnyHandle repItemHnd = IFCInstanceExporter.CreateGeometricCurveSet(file, curveSet);
IFCAnyHandle curveStyle = file.CreateStyle(exporterIFC, repItemHnd);
CurveAnnotationCache annotationCache = ExporterCacheManager.CurveAnnotationCache;
IFCAnyHandle curveAnno = annotationCache.GetAnnotation(sketchPlane.Id, curveStyle);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(curveAnno))
{
AddCurvesToAnnotation(curveAnno, curves);
}
else
{
curveAnno = CreateCurveAnnotation(exporterIFC, curveElement, curveElement.Category.Id, sketchPlane.Id, curveLCS, curveStyle, setter, localPlacement, repItemHnd);
productWrapper.AddAnnotation(curveAnno, setter.LevelInfo, true);
annotationCache.AddAnnotation(sketchPlane.Id, curveStyle, curveAnno);
}
}
transaction.Commit();
}
}
/// <summary>
/// Exports a curve element to IFC curve annotation.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="curveElement">
/// The curve element to be exported.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The IFCProductWrapper.
/// </param>
public static void ExportCurveElement(ExporterIFC exporterIFC, CurveElement curveElement, GeometryElement geometryElement,
IFCProductWrapper productWrapper)
{
if (geometryElement == null || !ShouldCurveElementBeExported(curveElement))
{
return;
}
SketchPlane sketchPlane = curveElement.SketchPlane;
if (sketchPlane == null)
{
return;
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
using (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, curveElement))
{
IFCAnyHandle localPlacement = setter.GetPlacement();
IFCAnyHandle axisPlacement = GeometryUtil.GetRelativePlacementFromLocalPlacement(localPlacement);
Plane planeSK = sketchPlane.Plane;
XYZ projDir = planeSK.Normal;
XYZ origin = planeSK.Origin;
bool useOffsetTrf = false;
if (projDir.IsAlmostEqualTo(XYZ.BasisZ))
{
XYZ offset = XYZ.BasisZ * setter.Offset;
origin -= offset;
}
else
{
useOffsetTrf = true;
}
Plane plane = new Plane(planeSK.XVec, planeSK.YVec, origin);
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, plane, projDir, false);
if (useOffsetTrf)
{
XYZ offsetOrig = -XYZ.BasisZ * setter.Offset;
Transform trf = Transform.get_Translation(offsetOrig);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, geometryElement, XYZ.Zero, false, trf);
}
else
{
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, geometryElement, XYZ.Zero, false);
}
IList <IFCAnyHandle> curves = info.GetCurves();
if (curves.Count != 1)
{
throw new Exception("IFC: expected 1 curve when export curve element.");
}
HashSet <IFCAnyHandle> curveSet = new HashSet <IFCAnyHandle>(curves);
IFCAnyHandle repItemHnd = IFCInstanceExporter.CreateGeometricCurveSet(file, curveSet);
IFCAnyHandle curveStyle = file.CreateStyle(exporterIFC, repItemHnd);
CurveAnnotationCache annotationCache = ExporterCacheManager.CurveAnnotationCache;
IFCAnyHandle curveAnno = annotationCache.GetAnnotation(sketchPlane.Id, curveStyle);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(curveAnno))
{
AddCurvesToAnnotation(curveAnno, curves);
}
else
{
curveAnno = CreateCurveAnnotation(exporterIFC, curveElement, curveElement.Category.Id, sketchPlane.Id, plane, curveStyle, setter, localPlacement, repItemHnd);
productWrapper.AddAnnotation(curveAnno, setter.GetLevelInfo(), true);
annotationCache.AddAnnotation(sketchPlane.Id, curveStyle, curveAnno);
}
}
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;
Plane plane = GeometryUtil.CreateDefaultPlane();
XYZ projDir = new XYZ(0, 0, 1);
double eps = element.Document.Application.VertexTolerance * exporterIFC.LinearScale;
ifcGeomInfo = IFCGeometryInfo.CreateFaceGeometryInfo(exporterIFC, plane, projDir, eps, exportBoundaryRep);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, ifcGeomInfo, geometryElement, XYZ.Zero, true);
IFCFile file = exporterIFC.GetFile();
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);
}
IFCAnyHandle surface = IFCInstanceExporter.CreateFaceBasedSurfaceModel(file, faceSets);
IList <IFCAnyHandle> surfaceItems = new List <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> boudaryRepresentations = ifcGeomInfo.GetRepresentations();
if (exportBoundaryRep && boudaryRepresentations.Count > 1)
{
boundaryRep = RepresentationUtil.CreateBoundaryRep(exporterIFC, element, catId, exporterIFC.Get3DContextHandle("Body"), boudaryRepresentations,
boundaryRep);
}
return(true);
}
/// <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();
double scale = exporterIFC.LinearScale;
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.get_EndPoint(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 (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, element, null, canExportAxis ? orientTrf : null, ExporterUtil.GetBaseLevelIdForElement(element)))
{
IFCAnyHandle localPlacement = setter.GetPlacement();
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 = -offsetTransform.Origin / scale;
}
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));
IFCAnyHandle beam = IFCInstanceExporter.CreateBeam(file, instanceGUID, exporterIFC.GetOwnerHistoryHandle(),
instanceName, instanceDescription, instanceObjectType, extrusionCreationData.GetLocalPlacement(), prodRep, instanceTag);
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);
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 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 IFCPlacementSetter 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, IFCPlacementSetter setter, IFCAnyHandle localPlacement)
{
IFCAnyHandle prodDefRep = null;
Document document = wallElement.Document;
double eps = document.Application.VertexTolerance * exporterIFC.LinearScale;
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle contextOfItems = exporterIFC.Get3DContextHandle("Body");
IFCGeometryInfo info = IFCGeometryInfo.CreateFaceGeometryInfo(eps);
IList <IFCAnyHandle> bodyItems = new List <IFCAnyHandle>();
// Want to make sure we don't accidentally add a mullion or curtain line more than once.
HashSet <ElementId> alreadyVisited = new HashSet <ElementId>();
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);
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, outer, ElementId.InvalidElementId));
}
}
if (bodyItems.Count == 0)
{
return(prodDefRep);
}
ElementId catId = CategoryUtil.GetSafeCategoryId(wallElement);
IFCAnyHandle 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>
/// Create the handle corresponding to the "Axis" IfcRepresentation for a beam, if possible.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC class.</param>
/// <param name="element">The beam element.</param>
/// <param name="catId">The beam category id.</param>
/// <param name="axisInfo">The optional beam axis information.</param>
/// <param name="offsetTransform">The optional offset transform applied to the "Body" representation.</param>
/// <returns>The handle, or null if not created.</returns>
private static IFCAnyHandle CreateBeamAxis(ExporterIFC exporterIFC, Element element, ElementId catId, BeamAxisInfo axisInfo, Transform offsetTransform)
{
if (axisInfo == null)
{
return(null);
}
Curve curve = axisInfo.Axis;
XYZ projDir = axisInfo.AxisNormal;
Transform lcs = axisInfo.LCSAsTransform;
string representationTypeOpt = "Curve2D"; // This is by IFC2x2+ convention.
XYZ curveOffset = XYZ.Zero;
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 = -lcs.Origin;
}
Transform offsetLCS = new Transform(lcs);
offsetLCS.Origin = XYZ.Zero;
IList <IFCAnyHandle> axis_items = null;
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
IFCFile file = exporterIFC.GetFile();
IList <int> segmentIndex = null;
IList <IList <double> > pointList = GeometryUtil.PointListFromCurve(exporterIFC, curve, null, null, out segmentIndex);
// For now because of no support in creating IfcLineIndex and IfcArcIndex yet, it is set to null
//IList<IList<int>> segmentIndexList = new List<IList<int>>();
//segmentIndexList.Add(segmentIndex);
IList <IList <int> > segmentIndexList = null;
IFCAnyHandle pointListHnd = IFCInstanceExporter.CreateCartesianPointList3D(file, pointList);
IFCAnyHandle axisHnd = IFCInstanceExporter.CreateIndexedPolyCurve(file, pointListHnd, segmentIndexList, false);
axis_items = new List <IFCAnyHandle>();
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(axisHnd))
{
axis_items.Add(axisHnd);
representationTypeOpt = "Curve3D"; // We use Curve3D for IFC4RV Axis
}
}
else
{
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, offsetLCS, projDir, false);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, curve, curveOffset, true);
axis_items = info.GetCurves();
}
if (axis_items.Count > 0)
{
string identifierOpt = "Axis"; // This is by IFC2x2+ convention.
IFCAnyHandle axisRep = RepresentationUtil.CreateShapeRepresentation(exporterIFC, element, catId, exporterIFC.Get3DContextHandle(identifierOpt),
identifierOpt, representationTypeOpt, axis_items);
return(axisRep);
}
return(null);
}
/// <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);
IFCFile file = exporterIFC.GetFile();
IFCAnyHandle surface;
ICollection <IFCAnyHandle> boundaryRepresentations = new List <IFCAnyHandle>();
// Use tessellated geometry for surface in IFC Reference View
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
BodyExporterOptions options = new BodyExporterOptions(false, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
surface = BodyExporter.ExportBodyAsTessellatedFaceSet(exporterIFC, element, options, geometryElement);
if (element is Autodesk.Revit.DB.Architecture.TopographySurface)
{
// TODO: need to find a good way to create the right boundary outline!
//IList<XYZ> boundaryPoints = (element as Autodesk.Revit.DB.Architecture.TopographySurface).GetBoundaryPoints();
//if (boundaryPoints != null && boundaryPoints.Count > 0)
//{
// IList<IFCAnyHandle> coords = new List<IFCAnyHandle>();
// foreach (XYZ point in boundaryPoints)
// {
// XYZ scPoint = ExporterIFCUtils.TransformAndScalePoint(exporterIFC, point);
// IList<double> uvPoint = new List<double>();
// // SInce the projection direction is on Z-axis, simply ignoring the Z-value will do for this. And also the Site reference will follow the WCS
// uvPoint.Add(scPoint.X);
// uvPoint.Add(scPoint.Y);
// IFCAnyHandle ifcCartesianPoint = IFCInstanceExporter.CreateCartesianPoint(file, uvPoint);
// coords.Add(ifcCartesianPoint);
// }
// if (coords.Count >= 2)
// {
// IFCAnyHandle boundaryLines = IFCInstanceExporter.CreatePolyline(file, coords);
// boundaryRepresentations.Add(boundaryLines);
// }
//}
}
}
else
{
ifcGeomInfo = IFCGeometryInfo.CreateFaceGeometryInfo(exporterIFC, plane, projDir, eps, exportBoundaryRep);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, ifcGeomInfo, geometryElement, XYZ.Zero, true);
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);
// Collect Footprint data
boundaryRepresentations = ifcGeomInfo.GetRepresentations();
}
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);
}
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 a curve element to IFC curve annotation.
/// </summary>
/// <param name="exporterIFC">
/// The ExporterIFC object.
/// </param>
/// <param name="curveElement">
/// The curve element to be exported.
/// </param>
/// <param name="geometryElement">
/// The geometry element.
/// </param>
/// <param name="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportCurveElement(ExporterIFC exporterIFC, CurveElement curveElement, GeometryElement geometryElement,
ProductWrapper productWrapper)
{
if (geometryElement == null || !ShouldCurveElementBeExported(curveElement))
{
return;
}
SketchPlane sketchPlane = curveElement.SketchPlane;
if (sketchPlane == null)
{
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>("IfcAnnotation", out elementClassTypeEnum))
{
if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
{
return;
}
}
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction transaction = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, curveElement))
{
IFCAnyHandle localPlacement = setter.LocalPlacement;
IFCAnyHandle axisPlacement = GeometryUtil.GetRelativePlacementFromLocalPlacement(localPlacement);
Plane planeSK = sketchPlane.GetPlane();
XYZ projDir = planeSK.Normal;
XYZ origin = planeSK.Origin;
bool useOffsetTrf = false;
if (projDir.IsAlmostEqualTo(XYZ.BasisZ))
{
XYZ offset = XYZ.BasisZ * setter.Offset;
origin -= offset;
}
else
{
useOffsetTrf = true;
}
Transform curveLCS = GeometryUtil.CreateTransformFromPlane(planeSK);
curveLCS.Origin = origin;
IFCGeometryInfo info = IFCGeometryInfo.CreateCurveGeometryInfo(exporterIFC, curveLCS, projDir, false);
if (useOffsetTrf)
{
XYZ offsetOrig = -XYZ.BasisZ * setter.Offset;
Transform trf = Transform.CreateTranslation(offsetOrig);
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, geometryElement, XYZ.Zero, false, trf);
}
else
{
ExporterIFCUtils.CollectGeometryInfo(exporterIFC, info, geometryElement, XYZ.Zero, false);
}
IList <IFCAnyHandle> curves = info.GetCurves();
if (curves.Count != 1)
{
throw new Exception("IFC: expected 1 curve when export curve element.");
}
HashSet <IFCAnyHandle> curveSet = new HashSet <IFCAnyHandle>(curves);
IFCAnyHandle repItemHnd = IFCInstanceExporter.CreateGeometricCurveSet(file, curveSet);
IFCAnyHandle curveStyle = file.CreateStyle(exporterIFC, repItemHnd);
CurveAnnotationCache annotationCache = ExporterCacheManager.CurveAnnotationCache;
IFCAnyHandle curveAnno = annotationCache.GetAnnotation(sketchPlane.Id, curveStyle);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(curveAnno))
{
AddCurvesToAnnotation(curveAnno, curves);
}
else
{
curveAnno = CreateCurveAnnotation(exporterIFC, curveElement, curveElement.Category.Id, sketchPlane.Id, curveLCS, curveStyle, setter, localPlacement, repItemHnd);
productWrapper.AddAnnotation(curveAnno, setter.LevelInfo, true);
annotationCache.AddAnnotation(sketchPlane.Id, curveStyle, curveAnno);
}
}
transaction.Commit();
}
}
