/// <summary>
/// Exports a floor to IFC slab.
/// </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 IFCProductWrapper.
/// </param>
/// <returns>
/// True if the floor is exported successfully, false otherwise.
/// </returns>
public static void ExportFloor(ExporterIFC exporterIFC, Floor floor, GeometryElement geometryElement, IFCProductWrapper productWrapper)
{
if (geometryElement == null)
return;
IFCFile file = exporterIFC.GetFile();
using (IFCTransaction tr = new IFCTransaction(file))
{
using (IFCTransformSetter transformSetter = IFCTransformSetter.Create())
{
using (IFCPlacementSetter placementSetter = IFCPlacementSetter.Create(exporterIFC, floor))
{
IFCAnyHandle localPlacement = placementSetter.GetPlacement();
IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
string ifcEnumType = CategoryUtil.GetIFCEnumTypeName(exporterIFC, floor);
double scale = exporterIFC.LinearScale;
ElementId catId = CategoryUtil.GetSafeCategoryId(floor);
IList<IFCAnyHandle> reps = new List<IFCAnyHandle>();
IList<IList<CurveLoop>> extrusionLoops = new List<IList<CurveLoop>>();
IList<IFCExtrusionCreationData> loopExtraParams = new List<IFCExtrusionCreationData>();
Plane floorPlane = GeometryUtil.CreateDefaultPlane();
IList<IFCAnyHandle> localPlacements = new List<IFCAnyHandle>();
bool exportedAsExtrusion = ExporterIFCUtils.ExportSlabAsExtrusion(exporterIFC, floor, geometryElement,
transformSetter, localPlacement, out localPlacements, out reps, out extrusionLoops, out loopExtraParams, floorPlane);
// We will use the ExtrusionAnalyzer when it is ready.
// XYZ extrusionDirection = { 0, 0, -1 };
// XYZ modelOrigin = { 0, 0, 0 };
// XYZ floorOrigin = floor.GetVerticalProjectionPoint(modelOrigin, FloorFace.Top);
// XYZ floorDir = floor.GetNormalAtVerticalProjectionPoint(floorOrigin, FloorFace.Top);
// Plane floorPlane(floorDir, floorOrigin);
// ExtrusionAnalyzer floorExtrusion =
// ExtrusionAnalyzer.Create(geometryElement, floorPlane, extrusionDirection);
if (!exportedAsExtrusion)
{
IFCAnyHandle bodyRep = null;
IList<GeometryObject> geomObjects = new List<GeometryObject>();
geomObjects.Add(geometryElement);
bodyRep = BodyExporter.ExportBody(floor.Document.Application, exporterIFC, catId, geomObjects, true, null);
if (bodyRep == null || !bodyRep.HasValue)
{
tr.Commit();
return;
}
IFCAnyHandle prodDefHnd = file.CreateProductDefinitionShape(bodyRep);
if (!prodDefHnd.HasValue)
return;
reps.Add(prodDefHnd);
}
// Create the slab from either the extrusion or the BRep information.
IFCLabel ifcGUID = IFCLabel.CreateGUID(floor);
IList<IFCAnyHandle> slabHnds = new List<IFCAnyHandle>();
int numReps = reps.Count;
for (int ii = 0; ii < numReps; ii++)
{
IFCLabel ifcName = NamingUtil.GetNameOverride(floor, NamingUtil.CreateIFCName(exporterIFC, ii == 0 ? -1 : ii + 1));
IFCLabel ifcDescription = NamingUtil.GetDescriptionOverride(floor, IFCLabel.Create());
IFCLabel ifcObjectType = NamingUtil.GetObjectTypeOverride(floor, exporterIFC.GetFamilyNameFromExportState());
IFCLabel ifcElemId = NamingUtil.CreateIFCElementId(floor);
IFCLabel currentGUID = (ii == 0) ? ifcGUID : IFCLabel.CreateGUID();
IFCAnyHandle localPlacementHnd = exportedAsExtrusion ? localPlacements[ii] : localPlacement;
IFCAnyHandle slabHnd = file.CreateSlab(currentGUID,
ownerHistory,
ifcName,
ifcDescription,
ifcObjectType,
localPlacementHnd,
ifcElemId,
ifcEnumType,
reps[ii]);
if (!slabHnd.HasValue)
return;
slabHnds.Add(slabHnd);
}
for (int ii = 0; ii < numReps; ii++)
{
IFCExtrusionCreationData loopExtraParam = ii < loopExtraParams.Count ? loopExtraParams[ii] : null;
productWrapper.AddElement(slabHnds[ii], placementSetter, loopExtraParam, true);
}
if (exportedAsExtrusion)
ExporterIFCUtils.ExportExtrudedSlabOpenings(exporterIFC, floor, placementSetter,
localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper);
ExporterIFCUtils.CreateGenericElementPropertySet(exporterIFC, floor, productWrapper);
ExporterIFCUtils.ExportHostObject(exporterIFC, floor, geometryElement, productWrapper);
}
}
tr.Commit();
}
}