/// <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> /// <param name="exportParts"> /// Whether to export parts or not. /// </param> /// <returns> /// True if the floor is exported successfully, false otherwise. /// </returns> public static void ExportFloor(ExporterIFC exporterIFC, Element floorElement, GeometryElement geometryElement, string ifcEnumType, IFCProductWrapper productWrapper, bool exportParts) { if (geometryElement == null) { return; } IFCFile file = exporterIFC.GetFile(); IList <IFCAnyHandle> slabHnds = new List <IFCAnyHandle>(); using (IFCTransaction tr = new IFCTransaction(file)) { using (IFCTransformSetter transformSetter = IFCTransformSetter.Create()) { using (IFCPlacementSetter placementSetter = IFCPlacementSetter.Create(exporterIFC, floorElement)) { IFCAnyHandle localPlacement = placementSetter.GetPlacement(); IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle(); bool exportedAsInternalExtrusion = false; double scale = exporterIFC.LinearScale; ElementId catId = CategoryUtil.GetSafeCategoryId(floorElement); 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>(); if (!exportParts) { // 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. // if (floorElement is Floor) { Floor floor = floorElement as Floor; SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSolidMeshGeometry(geometryElement, Transform.Identity); IList <Solid> solids = solidMeshInfo.GetSolids(); IList <Mesh> meshes = solidMeshInfo.GetMeshes(); if (solids.Count == 1 && meshes.Count == 0) { IList <Solid> splitVolumes = SolidUtils.SplitVolumes(solids[0]); if (splitVolumes.Count == 1) { 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 = floor.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, floor, 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); reps.Add(prodRep); if (floorAndProperties.Data != null) { loopExtraParams.Add(floorAndProperties.Data); } } } } } } // Use internal routine as backup that handles openings. if (reps.Count == 0) { exportedAsInternalExtrusion = ExporterIFCUtils.ExportSlabAsExtrusion(exporterIFC, floorElement, geometryElement, transformSetter, localPlacement, out localPlacements, out reps, out extrusionLoops, out loopExtraParams, floorPlane); } if (reps.Count == 0) { using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData()) { BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true); bodyExporterOptions.TessellationLevel = BodyExporterOptions.BodyTessellationLevel.Coarse; IFCAnyHandle prodDefHnd = RepresentationUtil.CreateBRepProductDefinitionShape(floorElement.Document.Application, exporterIFC, floorElement, catId, geometryElement, bodyExporterOptions, null, ecData); if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodDefHnd)) { ecData.ClearOpenings(); return; } reps.Add(prodDefHnd); } } } // Create the slab from either the extrusion or the BRep information. string ifcGUID = ExporterIFCUtils.CreateGUID(floorElement); int numReps = exportParts ? 1 : reps.Count; for (int ii = 0; ii < numReps; ii++) { string ifcName = NamingUtil.GetNameOverride(floorElement, NamingUtil.CreateIFCName(exporterIFC, ii == 0 ? -1 : ii + 1)); string ifcDescription = NamingUtil.GetDescriptionOverride(floorElement, null); string ifcObjectType = NamingUtil.GetObjectTypeOverride(floorElement, exporterIFC.GetFamilyName()); string ifcElemId = NamingUtil.CreateIFCElementId(floorElement); string currentGUID = (ii == 0) ? ifcGUID : ExporterIFCUtils.CreateGUID(); IFCAnyHandle localPlacementHnd = exportedAsInternalExtrusion ? localPlacements[ii] : localPlacement; IFCSlabType slabType = GetIFCSlabType(ifcEnumType); IFCAnyHandle slabHnd = IFCInstanceExporter.CreateSlab(file, currentGUID, ownerHistory, ifcName, ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : reps[ii], ifcElemId, slabType); if (IFCAnyHandleUtil.IsNullOrHasNoValue(slabHnd)) { return; } if (exportParts) { PartExporter.ExportHostPart(exporterIFC, floorElement, slabHnd, productWrapper, placementSetter, localPlacementHnd, null); } slabHnds.Add(slabHnd); } bool associateElementToLevel = LevelUtil.AssociateElementToLevel(floorElement); for (int ii = 0; ii < numReps; ii++) { IFCExtrusionCreationData loopExtraParam = ii < loopExtraParams.Count ? loopExtraParams[ii] : null; productWrapper.AddElement(slabHnds[ii], placementSetter, loopExtraParam, associateElementToLevel); } if (exportedAsInternalExtrusion) { ExporterIFCUtils.ExportExtrudedSlabOpenings(exporterIFC, floorElement, placementSetter, localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper); } PropertyUtil.CreateInternalRevitPropertySets(exporterIFC, floorElement, productWrapper); } if (!exportParts) { HostObjectExporter.ExportHostObjectMaterials(exporterIFC, floorElement as HostObject, slabHnds, geometryElement, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3); } } tr.Commit(); return; } }
/// <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 ProductWrapper. /// </param> /// <param name="exportParts"> /// Whether to export parts or not. /// </param> /// <returns> /// True if the floor is exported successfully, false otherwise. /// </returns> public static void ExportFloor(ExporterIFC exporterIFC, Element floorElement, GeometryElement geometryElement, string ifcEnumType, ProductWrapper productWrapper, bool exportParts) { if (geometryElement == null) { return; } 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 (IFCPlacementSetter placementSetter = IFCPlacementSetter.Create(exporterIFC, floorElement, null, null, ExporterUtil.GetBaseLevelIdForElement(floorElement))) { IFCAnyHandle localPlacement = placementSetter.GetPlacement(); IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle(); bool exportedAsInternalExtrusion = false; double scale = exporterIFC.LinearScale; 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) { // 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. // if (floorElement is Floor) { Floor floor = floorElement as Floor; 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 = floor.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, floor, 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; // Allow export as IfcSlab or IfcFooting. Ignore altIfcEnumType value; use value passed in. string altIfcEnumType; IFCExportType exportAs = ExporterUtil.GetExportType(exporterIFC, floorElement, out altIfcEnumType); bool exportAsFooting = (exportAs == IFCExportType.ExportFooting); IFCFootingType?footingType = null; IFCSlabType? slabType = null; if (exportAsFooting) { footingType = FootingExporter.GetIFCFootingType(ifcEnumType); } else { slabType = GetIFCSlabType(ifcEnumType); } 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; if (exportAsFooting) { slabHnd = IFCInstanceExporter.CreateFooting(file, currentGUID, ownerHistory, ifcName, ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii], ifcTag, footingType.Value); } else { slabHnd = IFCInstanceExporter.CreateSlab(file, currentGUID, ownerHistory, ifcName, ifcDescription, ifcObjectType, localPlacementHnd, exportParts ? null : prodReps[ii], ifcTag, slabType.Value); } 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, localPlacements[0], slabHnds, extrusionLoops, floorPlane, productWrapper.ToNative()); } } if (!exportParts) { if (floorElement is HostObject) { HostObject hostObject = floorElement 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 (floorElement is FamilyInstance && slabHnds.Count > 0) { ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, floorElement); Document doc = floorElement.Document; foreach (IFCAnyHandle slabHnd in slabHnds) { CategoryUtil.CreateMaterialAssociation(exporterIFC, slabHnd, matId); } } } } tr.Commit(); return; } }
public static HandleAndData CreateExtrusionWithClippingAndProperties(ExporterIFC exporterIFC, Element element, ElementId catId, Solid solid, Plane plane, XYZ projDir, IFCRange range, out bool completelyClipped) { IList<Solid> solids = new List<Solid>(); solids.Add(solid); HashSet<ElementId> materialIds = null; HandleAndAnalyzer handleAndAnalyzer = CreateExtrusionWithClippingBase(exporterIFC, element, catId, solids, plane, projDir, range, out completelyClipped, out materialIds); HandleAndData ret = new HandleAndData(); ret.Handle = handleAndAnalyzer.Handle; if (handleAndAnalyzer.Analyzer != null) { ret.Data = GetExtrusionCreationDataFromAnalyzer(exporterIFC, projDir, handleAndAnalyzer.Analyzer); } return ret; }