/// <summary>
/// A special case function that can export a Rebar element as an IfcBuildingElementProxy for view-specific exports where the exact geometry of the rebar matters.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="rebarElement">The rebar element to be exported.</param>
/// <param name="productWrapper">The ProductWrapper object.</param>
/// <param name="cannotExportRebar">True if we tried to create an IFC entity but failed.</param>
/// <returns>True if the rebar was exported here, false otherwise.</returns>
/// <remarks>This functionality may be obsoleted in the future.</remarks>
private static IFCAnyHandle ExportRebarAsProxyElementInView(ExporterIFC exporterIFC, Element rebarElement, ProductWrapper productWrapper, out bool cannotExportRebar)
{
IFCAnyHandle rebarEntity = null;
cannotExportRebar = false;
if (rebarElement is Rebar && ExporterCacheManager.ExportOptionsCache.FilterViewForExport != null)
{
// The only options handled here is IfcBuildingElementProxy.
// Not Exported is handled previously, and ReinforcingBar vs Mesh will be handled later.
string ifcEnumType;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, rebarElement, out ifcEnumType);
if (exportType.ExportInstance == IFCEntityType.IfcBuildingElementProxy ||
exportType.ExportType == IFCEntityType.IfcBuildingElementProxyType)
{
Rebar rebar = rebarElement as Rebar;
GeometryElement rebarGeometry = rebar.GetFullGeometryForView(ExporterCacheManager.ExportOptionsCache.FilterViewForExport);
if (rebarGeometry != null)
{
rebarEntity = ProxyElementExporter.ExportBuildingElementProxy(exporterIFC, rebarElement, rebarGeometry, productWrapper);
}
cannotExportRebar = IFCAnyHandleUtil.IsNullOrHasNoValue(rebarEntity);
}
}
return(rebarEntity);
}
/// <summary>
/// Exports a hosted weep.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="hostedSweep">The hosted sweep element.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void Export(ExporterIFC exporterIFC, HostedSweep hostedSweep, GeometryElement geometryElement, ProductWrapper productWrapper)
{
ElementId catId = CategoryUtil.GetSafeCategoryId(hostedSweep);
if (catId == new ElementId(BuiltInCategory.OST_Gutter))
ExportGutter(exporterIFC, hostedSweep, geometryElement, productWrapper);
else
ProxyElementExporter.Export(exporterIFC, hostedSweep, geometryElement, productWrapper);
}
/// <summary>
/// Exports a wall swepp.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="wallSweep">The WallSweep.</param>
/// <param name="geometryElement">The geometry element.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
public static void Export(ExporterIFC exporterIFC, WallSweep wallSweep, GeometryElement geometryElement, ProductWrapper productWrapper)
{
WallSweepInfo wallSweepInfo = wallSweep.GetWallSweepInfo();
//Reveals are exported as openings with wall exporter.
if (wallSweepInfo.WallSweepType == WallSweepType.Reveal)
{
return;
}
if (!ProxyElementExporter.Export(exporterIFC, wallSweep, geometryElement, productWrapper))
{
return;
}
HostObjectExporter.ExportHostObjectMaterials(exporterIFC, wallSweep, productWrapper.GetAnElement(),
geometryElement, productWrapper,
ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis2, null);
}
/// <summary>
/// Exports curtain object as container.
/// </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="productWrapper">
/// The ProductWrapper.
/// </param>
public static void ExportCurtainObjectCommonAsContainer(ICollection <ElementId> allSubElements, Element wallElement,
ExporterIFC exporterIFC, ProductWrapper origWrapper, PlacementSetter currSetter)
{
if (wallElement == null)
{
return;
}
string overrideCADLayer = null;
ParameterUtil.GetStringValueFromElementOrSymbol(wallElement, "IFCCadLayer", out overrideCADLayer);
using (ExporterStateManager.CADLayerOverrideSetter layerSetter = new ExporterStateManager.CADLayerOverrideSetter(overrideCADLayer))
{
HashSet <ElementId> alreadyVisited = new HashSet <ElementId>(); // just in case.
Options geomOptions = GeometryUtil.GetIFCExportGeometryOptions();
{
foreach (ElementId subElemId in allSubElements)
{
using (ProductWrapper productWrapper = ProductWrapper.Create(origWrapper))
{
Element subElem = wallElement.Document.GetElement(subElemId);
if (subElem == null)
{
continue;
}
if (alreadyVisited.Contains(subElem.Id))
{
continue;
}
alreadyVisited.Add(subElem.Id);
// Respect element visibility settings.
if (!ElementFilteringUtil.CanExportElement(exporterIFC, subElem, false) || !ElementFilteringUtil.IsElementVisible(subElem))
{
continue;
}
GeometryElement geomElem = subElem.get_Geometry(geomOptions);
if (geomElem == null)
{
continue;
}
try
{
if (subElem is FamilyInstance)
{
string ifcEnumType;
IFCExportInfoPair exportType = ExporterUtil.GetExportType(exporterIFC, subElem, out ifcEnumType);
if (subElem is Mullion)
{
if (ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
{
ProxyElementExporter.Export(exporterIFC, subElem, geomElem, productWrapper);
}
else
{
IFCAnyHandle currLocalPlacement = currSetter.LocalPlacement;
if (exportType.ExportInstance == IFCEntityType.IfcCurtainWall)
{
// By default, panels and mullions are set to the same category as their parent. In this case,
// ask to get the exportType from the category id, since we don't want to inherit the parent class.
exportType.SetValueWithPair(IFCEntityType.IfcMemberType);
ifcEnumType = "MULLION";
}
FamilyInstanceExporter.ExportFamilyInstanceAsMappedItem(exporterIFC, subElem as Mullion, exportType, ifcEnumType, productWrapper,
ElementId.InvalidElementId, null, currLocalPlacement);
}
}
else
{
FamilyInstance subFamInst = subElem as FamilyInstance;
if (exportType.ExportInstance == IFCEntityType.IfcCurtainWall)
{
// By default, panels and mullions are set to the same category as their parent. In this case,
// ask to get the exportType from the category id, since we don't want to inherit the parent class.
ElementId catId = CategoryUtil.GetSafeCategoryId(subElem);
exportType = ElementFilteringUtil.GetExportTypeFromCategoryId(catId, out ifcEnumType);
}
if (ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
{
if ((exportType.ExportInstance == IFCEntityType.UnKnown) ||
(exportType.ExportInstance == IFCEntityType.IfcPlate) ||
(exportType.ExportInstance == IFCEntityType.IfcMember))
{
exportType.SetValueWithPair(IFCEntityType.IfcBuildingElementProxy);
}
}
else
{
if (exportType.ExportInstance == IFCEntityType.UnKnown)
{
ifcEnumType = "CURTAIN_PANEL";
exportType.SetValueWithPair(IFCEntityType.IfcPlateType);
}
}
IFCAnyHandle currLocalPlacement = currSetter.LocalPlacement;
using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
{
FamilyInstanceExporter.ExportFamilyInstanceAsMappedItem(exporterIFC, subFamInst, exportType, ifcEnumType, productWrapper,
ElementId.InvalidElementId, null, currLocalPlacement);
}
}
}
else if (subElem is CurtainGridLine)
{
ProxyElementExporter.Export(exporterIFC, subElem, geomElem, productWrapper);
}
else if (subElem is Wall)
{
WallExporter.ExportWall(exporterIFC, null, subElem, null, geomElem, productWrapper);
}
}
catch (Exception ex)
{
if (ExporterUtil.IsFatalException(wallElement.Document, ex))
{
throw ex;
}
continue;
}
}
}
}
}
}
/// <summary>
/// Exports a Rebar to IFC ReinforcingBar.
/// </summary>
/// <param name="exporterIFC">The ExporterIFC object.</param>
/// <param name="element">The element to be exported.</param>
/// <param name="productWrapper">The ProductWrapper.</param>
/// <returns>The list of IfcReinforcingBar handles created.</returns>
public static ISet <IFCAnyHandle> ExportRebar(ExporterIFC exporterIFC, Element element, ProductWrapper productWrapper)
{
IFCFile file = exporterIFC.GetFile();
HashSet <IFCAnyHandle> createdRebars = new HashSet <IFCAnyHandle>();
using (IFCTransaction transaction = new IFCTransaction(file))
{
using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
{
if (element is Rebar)
{
GeometryElement rebarGeometry = ExporterIFCUtils.GetRebarGeometry(element as Rebar, ExporterCacheManager.ExportOptionsCache.FilterViewForExport);
// only options are: Not Export, BuildingElementProxy, or ReinforcingBar/Mesh, depending on layout.
// Not Export is handled previously, and ReinforcingBar vs Mesh will be determined below.
string ifcEnumType;
IFCExportType exportType = ExporterUtil.GetExportType(exporterIFC, element, out ifcEnumType);
if (exportType == IFCExportType.IfcBuildingElementProxy ||
exportType == IFCExportType.IfcBuildingElementProxyType)
{
if (rebarGeometry != null)
{
ProxyElementExporter.ExportBuildingElementProxy(exporterIFC, element, rebarGeometry, productWrapper);
transaction.Commit();
}
return(null);
}
}
IFCAnyHandle prodRep = null;
double totalBarLengthUnscale = GetRebarTotalLength(element);
double volumeUnscale = GetRebarVolume(element);
double totalBarLength = UnitUtil.ScaleLength(totalBarLengthUnscale);
if (MathUtil.IsAlmostZero(totalBarLength))
{
return(null);
}
ElementId materialId = ElementId.InvalidElementId;
ParameterUtil.GetElementIdValueFromElementOrSymbol(element, BuiltInParameter.MATERIAL_ID_PARAM, out materialId);
Document doc = element.Document;
ElementId typeId = element.GetTypeId();
RebarBarType elementType = doc.GetElement(element.GetTypeId()) as RebarBarType;
double diameter = UnitUtil.ScaleLength(elementType == null ? 1.0 / 12.0 : elementType.BarDiameter);
double radius = diameter / 2.0;
double longitudinalBarNominalDiameter = diameter;
double longitudinalBarCrossSectionArea = UnitUtil.ScaleArea(volumeUnscale / totalBarLengthUnscale);
double barLength = totalBarLength / GetRebarQuantity(element);
IList <Curve> baseCurves = GetRebarCenterlineCurves(element, true, false, false);
int numberOfBarPositions = GetNumberOfBarPositions(element);
string steelGrade = NamingUtil.GetOverrideStringValue(element, "SteelGrade", null);
// Allow use of IFC2x3 or IFC4 naming.
string predefinedType = NamingUtil.GetOverrideStringValue(element, "BarRole", null);
if (string.IsNullOrWhiteSpace(predefinedType))
{
predefinedType = NamingUtil.GetOverrideStringValue(element, "PredefinedType", null);
}
IFCReinforcingBarRole role = GetReinforcingBarRole(predefinedType);
string origRebarName = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
string rebarDescription = NamingUtil.GetDescriptionOverride(element, null);
string rebarObjectType = NamingUtil.GetObjectTypeOverride(element, NamingUtil.CreateIFCObjectName(exporterIFC, element));
string rebarTag = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
const int maxBarGUIDS = IFCReinforcingBarSubElements.BarEnd - IFCReinforcingBarSubElements.BarStart + 1;
ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
IFCAnyHandle originalPlacement = setter.LocalPlacement;
for (int i = 0; i < numberOfBarPositions; i++)
{
if (!DoesBarExistAtPosition(element, i))
{
continue;
}
string rebarName = NamingUtil.GetNameOverride(element, origRebarName + ": " + i);
Transform barTrf = GetBarPositionTransform(element, i);
IList <Curve> curves = new List <Curve>();
double endParam = 0.0;
foreach (Curve baseCurve in baseCurves)
{
if (baseCurve is Arc || baseCurve is Ellipse)
{
if (baseCurve.IsBound)
{
endParam += UnitUtil.ScaleAngle(baseCurve.GetEndParameter(1) - baseCurve.GetEndParameter(0));
}
else
{
endParam += UnitUtil.ScaleAngle(2 * Math.PI);
}
}
else
{
endParam += 1.0;
}
curves.Add(baseCurve.CreateTransformed(barTrf));
}
IFCAnyHandle compositeCurve = GeometryUtil.CreateCompositeCurve(exporterIFC, curves);
IFCAnyHandle sweptDiskSolid = IFCInstanceExporter.CreateSweptDiskSolid(file, compositeCurve, radius, null, 0, endParam);
HashSet <IFCAnyHandle> bodyItems = new HashSet <IFCAnyHandle>();
bodyItems.Add(sweptDiskSolid);
IFCAnyHandle shapeRep = RepresentationUtil.CreateAdvancedSweptSolidRep(exporterIFC, element, categoryId, exporterIFC.Get3DContextHandle("Body"), bodyItems, null);
IList <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
shapeReps.Add(shapeRep);
prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
IFCAnyHandle copyLevelPlacement = (i == 0) ? originalPlacement : ExporterUtil.CopyLocalPlacement(file, originalPlacement);
string rebarGUID = (i < maxBarGUIDS) ?
GUIDUtil.CreateSubElementGUID(element, i + (int)IFCReinforcingBarSubElements.BarStart) :
GUIDUtil.CreateGUID();
IFCAnyHandle elemHnd = IFCInstanceExporter.CreateReinforcingBar(file, rebarGUID, exporterIFC.GetOwnerHistoryHandle(),
rebarName, rebarDescription, rebarObjectType, copyLevelPlacement,
prodRep, rebarTag, steelGrade, longitudinalBarNominalDiameter, longitudinalBarCrossSectionArea,
barLength, role, null);
createdRebars.Add(elemHnd);
productWrapper.AddElement(element, elemHnd, setter.LevelInfo, null, true);
ExporterCacheManager.HandleToElementCache.Register(elemHnd, element.Id);
CategoryUtil.CreateMaterialAssociation(exporterIFC, elemHnd, materialId);
}
}
transaction.Commit();
}
return(createdRebars);
}
