Beispiel #1
0
        /// <summary>
        /// Exports curtain wall types to IfcCurtainWallType.
        /// </summary>
        /// <param name="exporterIFC">The exporter.</param>
        /// <param name="wrapper">The ProductWrapper class.</param>
        /// <param name="elementHandle">The element handle.</param>
        /// <param name="element">The element.</param>
        public static void ExportCurtainWallType(ExporterIFC exporterIFC, ProductWrapper wrapper, IFCAnyHandle elementHandle, Element element)
        {
            if (elementHandle == null || element == null)
            {
                return;
            }

            Document  doc         = element.Document;
            ElementId typeElemId  = element.GetTypeId();
            Element   elementType = doc.GetElement(typeElemId);

            if (elementType == null)
            {
                return;
            }

            IFCAnyHandle wallType = ExporterCacheManager.ElementTypeToHandleCache.Find(typeElemId);

            if (!IFCAnyHandleUtil.IsNullOrHasNoValue(wallType))
            {
                ExporterCacheManager.TypeRelationsCache.Add(wallType, elementHandle);
                return;
            }

            string elemName        = NamingUtil.GetNameOverride(elementType, NamingUtil.GetIFCName(elementType));
            string elemElementType = NamingUtil.GetOverrideStringValue(elementType, "IfcElementType", null);

            // Property sets will be set later.
            wallType = IFCInstanceExporter.CreateCurtainWallType(exporterIFC.GetFile(), elementType,
                                                                 null, null, elemElementType, (elemElementType != null) ? "USERDEFINED" : "NOTDEFINED");

            wrapper.RegisterHandleWithElementType(elementType as ElementType, wallType, null);

            ExporterCacheManager.TypeRelationsCache.Add(wallType, elementHandle);
        }
        /// <summary>
        /// Exports IFC type.
        /// </summary>
        /// <remarks>
        /// This method will override the default value of the elemId label for certain element types, and then pass it on
        /// to the generic routine.
        /// </remarks>
        /// <param name="exporterIFC">The ExporterIFC class.</param>
        /// <param name="type">The export type.</param>
        /// <param name="ifcEnumType">The string value represents the IFC type.</param>
        /// <param name="guid">The guid.</param>
        /// <param name="name">The name.</param>
        /// <param name="description">The description.</param>
        /// <param name="applicableOccurrence">The optional data type of the entity.</param>
        /// <param name="propertySets">The property sets.</param>
        /// <param name="representationMapList">List of representations.</param>
        /// <param name="elemId">The element id label.</param>
        /// <param name="typeName">The type name.</param>
        /// <param name="instance">The family instance.</param>
        /// <param name="symbol">The element type.</param>
        /// <returns>The handle.</returns>
        public static IFCAnyHandle ExportGenericType(ExporterIFC exporterIFC,
                                                     IFCExportType type,
                                                     string ifcEnumType,
                                                     string guid,
                                                     string name,
                                                     string description,
                                                     string applicableOccurrence,
                                                     HashSet <IFCAnyHandle> propertySets,
                                                     IList <IFCAnyHandle> representationMapList,
                                                     string elemId,
                                                     string typeName,
                                                     Element instance,
                                                     ElementType symbol)
        {
            IFCFile      file         = exporterIFC.GetFile();
            IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
            IFCAnyHandle typeHandle   = null;

            try
            {
                // Skip export type object that does not have associated IfcTypeObject
                if (type != IFCExportType.IfcSite && type != IFCExportType.IfcBuildingStorey && type != IFCExportType.IfcSystem &&
                    type != IFCExportType.IfcZone && type != IFCExportType.IfcGroup && type != IFCExportType.IfcGrid)
                {
                    string elemIdToUse         = elemId;
                    string instanceElementType = null;
                    switch (type)
                    {
                    case IFCExportType.IfcFurnitureType:
                    case IFCExportType.IfcMemberType:
                    case IFCExportType.IfcPlateType:
                    {
                        elemIdToUse         = NamingUtil.GetTagOverride(instance, NamingUtil.CreateIFCElementId(instance));
                        instanceElementType = NamingUtil.GetOverrideStringValue(instance, "IfcElementType", typeName);
                        break;
                    }
                    }

                    typeHandle = ExportGenericTypeBase(file, type, ifcEnumType, guid, ownerHistory, name, description, applicableOccurrence,
                                                       null, representationMapList, elemIdToUse, instanceElementType, instance, symbol);
                }
            }
            catch
            {
            }

            return(typeHandle);
        }
Beispiel #3
0
        private static void GetFabricSheetParams(FabricSheet sheet, out string steelGrade, out double meshLength, out double meshWidth,
                                                 out double longitudinalBarNominalDiameter, out double transverseBarNominalDiameter, out double longitudinalBarCrossSectionArea,
                                                 out double transverseBarCrossSectionArea, out double longitudinalBarSpacing, out double transverseBarSpacing)
        {
            steelGrade = String.Empty;
            meshLength = sheet.CutOverallLength;
            meshWidth  = sheet.CutOverallWidth;
            longitudinalBarNominalDiameter  = 0.0;
            transverseBarNominalDiameter    = 0.0;
            longitudinalBarCrossSectionArea = 0.0;
            transverseBarCrossSectionArea   = 0.0;
            longitudinalBarSpacing          = 0.0;
            transverseBarSpacing            = 0.0;

            if (sheet == null)
            {
                return;
            }

            Document        doc = sheet.Document;
            Element         fabricSheetTypeElem = doc?.GetElement(sheet.GetTypeId());
            FabricSheetType fabricSheetType     = fabricSheetTypeElem as FabricSheetType;

            steelGrade = NamingUtil.GetOverrideStringValue(sheet, "SteelGrade", null);

            Element        majorFabricWireTypeElem = doc?.GetElement(fabricSheetType?.MajorDirectionWireType);
            FabricWireType majorFabricWireType     = (majorFabricWireTypeElem == null) ? null : (majorFabricWireTypeElem as FabricWireType);

            if (majorFabricWireType != null)
            {
                longitudinalBarNominalDiameter = UnitUtil.ScaleLength(majorFabricWireType.WireDiameter);
                double localRadius = longitudinalBarNominalDiameter / 2.0;
                longitudinalBarCrossSectionArea = localRadius * localRadius * Math.PI;
            }

            Element        minorFabricWireTypeElem = doc?.GetElement(fabricSheetType?.MinorDirectionWireType);
            FabricWireType minorFabricWireType     = (minorFabricWireTypeElem == null) ? null : (minorFabricWireTypeElem as FabricWireType);

            if (minorFabricWireType != null)
            {
                transverseBarNominalDiameter = UnitUtil.ScaleLength(minorFabricWireType.WireDiameter);
                double localRadius = transverseBarNominalDiameter / 2.0;
                transverseBarCrossSectionArea = localRadius * localRadius * Math.PI;
            }

            longitudinalBarSpacing = UnitUtil.ScaleLength(fabricSheetType.MajorSpacing);
            transverseBarSpacing   = UnitUtil.ScaleLength(fabricSheetType.MinorSpacing);
        }
        /// <summary>
        /// Exports curtain wall types to IfcCurtainWallType.
        /// </summary>
        /// <param name="exporterIFC">The exporter.</param>
        /// <param name="wrapper">The ProductWrapper class.</param>
        /// <param name="elementHandle">The element handle.</param>
        /// <param name="element">The element.</param>
        public static void ExportCurtainWallType(ExporterIFC exporterIFC, ProductWrapper wrapper, IFCAnyHandle elementHandle, Element element)
        {
            if (elementHandle == null || element == null)
            {
                return;
            }

            Document  doc         = element.Document;
            ElementId typeElemId  = element.GetTypeId();
            Element   elementType = doc.GetElement(typeElemId);

            if (elementType == null)
            {
                return;
            }

            IFCAnyHandle wallType = null;

            if (ExporterCacheManager.WallTypeCache.TryGetValue(typeElemId, out wallType))
            {
                ExporterCacheManager.TypeRelationsCache.Add(wallType, elementHandle);
                return;
            }

            string elemGUID = GUIDUtil.CreateGUID(elementType);
            string elemName = NamingUtil.GetNameOverride(elementType, NamingUtil.GetIFCName(elementType));
            string elemDesc = NamingUtil.GetDescriptionOverride(elementType, null);
            string elemTag  = NamingUtil.GetTagOverride(elementType, NamingUtil.CreateIFCElementId(elementType));
            string elemApplicableOccurence = NamingUtil.GetOverrideStringValue(elementType, "IfcApplicableOccurence", null);
            string elemElementType         = NamingUtil.GetOverrideStringValue(elementType, "IfcElementType", null);

            // Property sets will be set later.
            wallType = IFCInstanceExporter.CreateCurtainWallType(exporterIFC.GetFile(), elemGUID, exporterIFC.GetOwnerHistoryHandle(),
                                                                 elemName, elemDesc, elemApplicableOccurence, null, null, elemTag, elemElementType,
                                                                 (elemElementType != null) ? IFCCurtainWallType.UserDefined : IFCCurtainWallType.NotDefined);

            wrapper.RegisterHandleWithElementType(elementType as ElementType, wallType, null);

            ExporterCacheManager.WallTypeCache[typeElemId] = wallType;
            ExporterCacheManager.TypeRelationsCache.Add(wallType, elementHandle);
        }
Beispiel #5
0
        /// <summary>
        /// Creates a new IfcBeamType and relates it to the current element.
        /// </summary>
        /// <param name="exporterIFC">The exporter.</param>
        /// <param name="wrapper">The ProductWrapper class.</param>
        /// <param name="elementHandle">The element handle.</param>
        /// <param name="element">The element.</param>
        /// <param name="overrideMaterialId">The material id used for the element type.</param>
        public static void ExportBeamType(ExporterIFC exporterIFC, ProductWrapper wrapper, IFCAnyHandle elementHandle, Element element, string predefinedType)
        {
            if (elementHandle == null || element == null)
            {
                return;
            }

            Document  doc         = element.Document;
            ElementId typeElemId  = element.GetTypeId();
            Element   elementType = doc.GetElement(typeElemId);

            if (elementType == null)
            {
                return;
            }

            IFCAnyHandle beamType = ExporterCacheManager.ElementToHandleCache.Find(typeElemId);

            if (!IFCAnyHandleUtil.IsNullOrHasNoValue(beamType))
            {
                ExporterCacheManager.TypeRelationsCache.Add(beamType, elementHandle);
                return;
            }

            string elemGUID = GUIDUtil.CreateGUID(elementType);
            string elemName = NamingUtil.GetNameOverride(elementType, NamingUtil.GetIFCName(elementType));
            string elemDesc = NamingUtil.GetDescriptionOverride(elementType, null);
            string elemTag  = NamingUtil.GetTagOverride(elementType, NamingUtil.CreateIFCElementId(elementType));
            string elemApplicableOccurence = NamingUtil.GetOverrideStringValue(elementType, "IfcApplicableOccurence", null);
            string elemElementType         = NamingUtil.GetOverrideStringValue(elementType, "IfcElementType", null);

            // Property sets will be set later.
            beamType = IFCInstanceExporter.CreateBeamType(exporterIFC.GetFile(), elemGUID, ExporterCacheManager.OwnerHistoryHandle,
                                                          elemName, elemDesc, elemApplicableOccurence, null, null, elemTag, elemElementType, GetBeamType(elementType, predefinedType));

            wrapper.RegisterHandleWithElementType(elementType as ElementType, beamType, null);

            ExporterCacheManager.TypeRelationsCache.Add(beamType, elementHandle);
            ExporterCacheManager.ElementToHandleCache.Register(typeElemId, beamType);
        }
        /// <summary>
        /// Exports an element as an IfcReinforcingMesh.
        /// </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 ExportFabricSheet(ExporterIFC exporterIFC, FabricSheet sheet,
                                             GeometryElement geometryElement, ProductWrapper productWrapper)
        {
            if (sheet == null || geometryElement == null)
            {
                return(false);
            }

            Document doc  = sheet.Document;
            IFCFile  file = exporterIFC.GetFile();

            using (IFCTransaction tr = new IFCTransaction(file))
            {
                using (IFCPlacementSetter placementSetter = IFCPlacementSetter.Create(exporterIFC, sheet, null, null, ExporterUtil.GetBaseLevelIdForElement(sheet)))
                {
                    using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
                    {
                        ecData.SetLocalPlacement(placementSetter.GetPlacement());

                        ElementId categoryId = CategoryUtil.GetSafeCategoryId(sheet);

                        ElementId materialId = ElementId.InvalidElementId;
                        ParameterUtil.GetElementIdValueFromElementOrSymbol(sheet, BuiltInParameter.MATERIAL_ID_PARAM, out materialId);
                        double scale = exporterIFC.LinearScale;

                        string       guid            = GUIDUtil.CreateGUID(sheet);
                        IFCAnyHandle ownerHistory    = exporterIFC.GetOwnerHistoryHandle();
                        string       revitObjectType = exporterIFC.GetFamilyName();
                        string       name            = NamingUtil.GetNameOverride(sheet, revitObjectType);
                        string       description     = NamingUtil.GetDescriptionOverride(sheet, null);
                        string       objectType      = NamingUtil.GetObjectTypeOverride(sheet, revitObjectType);

                        IFCAnyHandle localPlacement = ecData.GetLocalPlacement();
                        string       elementTag     = NamingUtil.CreateIFCElementId(sheet);

                        string steelGrade = NamingUtil.GetOverrideStringValue(sheet, "SteelGrade", null);
                        double?meshLength = sheet.CutOverallLength;
                        double?meshWidth  = sheet.CutOverallWidth;

                        Element         fabricSheetTypeElem = doc.GetElement(sheet.GetTypeId());
                        FabricSheetType fabricSheetType     = (fabricSheetTypeElem == null) ? null : (fabricSheetTypeElem as FabricSheetType);

                        double longitudinalBarNominalDiameter  = 0.0;
                        double transverseBarNominalDiameter    = 0.0;
                        double longitudinalBarCrossSectionArea = 0.0;
                        double transverseBarCrossSectionArea   = 0.0;
                        double longitudinalBarSpacing          = 0.0;
                        double transverseBarSpacing            = 0.0;
                        if (fabricSheetType != null)
                        {
                            Element        majorFabricWireTypeElem = doc.GetElement(fabricSheetType.MajorDirectionWireType);
                            FabricWireType majorFabricWireType     = (majorFabricWireTypeElem == null) ? null : (majorFabricWireTypeElem as FabricWireType);
                            if (majorFabricWireType != null)
                            {
                                longitudinalBarNominalDiameter = majorFabricWireType.WireDiameter * scale;
                                double localRadius = longitudinalBarNominalDiameter / 2.0;
                                longitudinalBarCrossSectionArea = localRadius * localRadius * Math.PI;
                            }

                            Element        minorFabricWireTypeElem = doc.GetElement(fabricSheetType.MinorDirectionWireType);
                            FabricWireType minorFabricWireType     = (minorFabricWireTypeElem == null) ? null : (minorFabricWireTypeElem as FabricWireType);
                            if (minorFabricWireType != null)
                            {
                                transverseBarNominalDiameter = minorFabricWireType.WireDiameter * scale;
                                double localRadius = transverseBarNominalDiameter / 2.0;
                                transverseBarCrossSectionArea = localRadius * localRadius * Math.PI;
                            }

                            longitudinalBarSpacing = fabricSheetType.MajorSpacing * scale;
                            transverseBarSpacing   = fabricSheetType.MinorSpacing * scale;
                        }

                        IList <IFCAnyHandle> bodyItems = new List <IFCAnyHandle>();

                        IList <Curve> wireCenterlines = sheet.GetWireCenterlines(WireDistributionDirection.Major);
                        foreach (Curve wireCenterline in wireCenterlines)
                        {
                            IFCAnyHandle bodyItem = CreateSweptDiskSolid(exporterIFC, file, wireCenterline, longitudinalBarNominalDiameter);
                            if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyItem))
                            {
                                bodyItems.Add(bodyItem);
                            }
                        }

                        wireCenterlines = sheet.GetWireCenterlines(WireDistributionDirection.Minor);
                        foreach (Curve wireCenterline in wireCenterlines)
                        {
                            IFCAnyHandle bodyItem = CreateSweptDiskSolid(exporterIFC, file, wireCenterline, transverseBarNominalDiameter);
                            if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyItem))
                            {
                                bodyItems.Add(bodyItem);
                            }
                        }

                        IFCAnyHandle shapeRep = (bodyItems.Count > 0) ?
                                                RepresentationUtil.CreateAdvancedSweptSolidRep(exporterIFC, sheet, categoryId, exporterIFC.Get3DContextHandle("Body"), bodyItems, null) :
                                                null;
                        IList <IFCAnyHandle> shapeReps = null;
                        if (shapeRep != null)
                        {
                            shapeReps = new List <IFCAnyHandle>();
                            shapeReps.Add(shapeRep);
                        }
                        IFCAnyHandle prodRep = (shapeReps != null) ? IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps) : null;

                        IFCAnyHandle fabricSheet = IFCInstanceExporter.CreateReinforcingMesh(file, guid,
                                                                                             ownerHistory, name, description, objectType, localPlacement, prodRep, elementTag,
                                                                                             steelGrade, meshLength, meshWidth, longitudinalBarNominalDiameter, transverseBarNominalDiameter,
                                                                                             longitudinalBarCrossSectionArea, transverseBarCrossSectionArea,
                                                                                             longitudinalBarSpacing, transverseBarSpacing);

                        ElementId fabricAreaId = sheet.FabricAreaOwnerId;
                        if (fabricAreaId != ElementId.InvalidElementId)
                        {
                            HashSet <IFCAnyHandle> fabricSheets = null;
                            if (!ExporterCacheManager.FabricAreaHandleCache.TryGetValue(fabricAreaId, out fabricSheets))
                            {
                                fabricSheets = new HashSet <IFCAnyHandle>();
                                ExporterCacheManager.FabricAreaHandleCache[fabricAreaId] = fabricSheets;
                            }
                            fabricSheets.Add(fabricSheet);
                        }

                        productWrapper.AddElement(sheet, fabricSheet, placementSetter.GetLevelInfo(), ecData, true);

                        CategoryUtil.CreateMaterialAssociation(exporterIFC, fabricSheet, materialId);
                    }
                }
                tr.Commit();
                return(true);
            }
        }
Beispiel #7
0
        /// <summary>
        /// Base implementation to export IFC site object.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="document">The Revit document.  It may be null if element isn't.</param>
        /// <param name="element">The element.  It may be null if document isn't.</param>
        /// <param name="geometryElement">The geometry element.</param>
        /// <param name="productWrapper">The ProductWrapper.</param>
        private static void ExportSiteBase(ExporterIFC exporterIFC, Document document, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
        {
            IFCAnyHandle siteHandle = ExporterCacheManager.SiteHandle;

            // Nothing to do if we've already created an IfcSite, and have no site element to try to
            // export or append to the existing site.
            if (element == null && !IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
            {
                return;
            }

            Document doc = document;

            if (doc == null)
            {
                if (element != null)
                {
                    doc = element.Document;
                }
                else
                {
                    throw new ArgumentException("Both document and element are null.");
                }
            }

            // Check the intended IFC entity or type name is in the exclude list specified in the UI
            Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcSite;
            if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
            {
                return;
            }

            IFCFile file = exporterIFC.GetFile();

            using (IFCTransaction tr = new IFCTransaction(file))
            {
                IFCAnyHandle siteRepresentation = null;
                if (element != null)
                {
                    // It would be possible that they actually represent several different sites with different buildings,
                    // but until we have a concept of a building in Revit, we have to assume 0-1 sites, 1 building.
                    bool appendedToSite     = false;
                    bool exportAsFacetation = !ExporterCacheManager.ExportOptionsCache.ExportAsCoordinationView2;
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
                    {
                        IList <IFCAnyHandle> representations = IFCAnyHandleUtil.GetProductRepresentations(siteHandle);
                        if (representations.Count > 0)
                        {
                            IFCAnyHandle bodyRep     = representations[0];
                            IFCAnyHandle boundaryRep = null;
                            if (representations.Count > 1)
                            {
                                boundaryRep = representations[1];
                            }

                            siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation, ref bodyRep, ref boundaryRep);
                            if (representations.Count == 1 && !IFCAnyHandleUtil.IsNullOrHasNoValue(boundaryRep))
                            {
                                // If the first site has no boundaryRep,
                                // we will add the boundaryRep from second site to it.
                                representations.Clear();
                                representations.Add(boundaryRep);
                                IFCAnyHandleUtil.AddProductRepresentations(siteHandle, representations);
                            }
                            appendedToSite = true;
                        }
                    }

                    if (!appendedToSite)
                    {
                        siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation);
                    }
                }

                List <int>      latitude     = new List <int>();
                List <int>      longitude    = new List <int>();
                ProjectLocation projLocation = doc.ActiveProjectLocation;

                IFCAnyHandle relativePlacement = null;
                double       unscaledElevation = 0.0;
                if (projLocation != null)
                {
                    const double scaleToDegrees = 180 / Math.PI;
                    double       latitudeInDeg  = projLocation.GetSiteLocation().Latitude *scaleToDegrees;
                    double       longitudeInDeg = projLocation.GetSiteLocation().Longitude *scaleToDegrees;

                    ExporterUtil.GetSafeProjectPositionElevation(doc, out unscaledElevation);

                    int latDeg     = ((int)latitudeInDeg); latitudeInDeg -= latDeg; latitudeInDeg *= 60;
                    int latMin     = ((int)latitudeInDeg); latitudeInDeg -= latMin; latitudeInDeg *= 60;
                    int latSec     = ((int)latitudeInDeg); latitudeInDeg -= latSec; latitudeInDeg *= 1000000;
                    int latFracSec = ((int)latitudeInDeg);
                    latitude.Add(latDeg);
                    latitude.Add(latMin);
                    latitude.Add(latSec);
                    if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
                    {
                        latitude.Add(latFracSec);
                    }

                    int longDeg     = ((int)longitudeInDeg); longitudeInDeg -= longDeg; longitudeInDeg *= 60;
                    int longMin     = ((int)longitudeInDeg); longitudeInDeg -= longMin; longitudeInDeg *= 60;
                    int longSec     = ((int)longitudeInDeg); longitudeInDeg -= longSec; longitudeInDeg *= 1000000;
                    int longFracSec = ((int)longitudeInDeg);
                    longitude.Add(longDeg);
                    longitude.Add(longMin);
                    longitude.Add(longSec);
                    if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
                    {
                        longitude.Add(longFracSec);
                    }

                    ExportOptionsCache.SiteTransformBasis transformBasis = ExporterCacheManager.ExportOptionsCache.SiteTransformation;

                    Transform siteSharedCoordinatesTrf = Transform.Identity;

                    if (transformBasis != ExportOptionsCache.SiteTransformBasis.Internal)
                    {
                        BasePoint basePoint = null;
                        if (transformBasis == ExportOptionsCache.SiteTransformBasis.Project)
                        {
                            basePoint = new FilteredElementCollector(doc).WherePasses(new ElementCategoryFilter(BuiltInCategory.OST_ProjectBasePoint)).First() as BasePoint;
                        }
                        else if (transformBasis == ExportOptionsCache.SiteTransformBasis.Site)
                        {
                            basePoint = new FilteredElementCollector(doc).WherePasses(new ElementCategoryFilter(BuiltInCategory.OST_SharedBasePoint)).First() as BasePoint;
                        }

                        if (basePoint != null)
                        {
                            BoundingBoxXYZ bbox = basePoint.get_BoundingBox(null);
                            XYZ            xyz  = bbox.Min;
                            siteSharedCoordinatesTrf = Transform.CreateTranslation(new XYZ(-xyz.X, -xyz.Y, unscaledElevation - xyz.Z));
                        }
                        else
                        {
                            siteSharedCoordinatesTrf = projLocation.GetTransform().Inverse;
                        }
                    }

                    if (!siteSharedCoordinatesTrf.IsIdentity)
                    {
                        double unscaledSiteElevation = ExporterCacheManager.ExportOptionsCache.IncludeSiteElevation ? 0.0 : unscaledElevation;
                        XYZ    orig = UnitUtil.ScaleLength(siteSharedCoordinatesTrf.Origin - new XYZ(0, 0, unscaledSiteElevation));
                        relativePlacement = ExporterUtil.CreateAxis2Placement3D(file, orig, siteSharedCoordinatesTrf.BasisZ, siteSharedCoordinatesTrf.BasisX);
                    }
                }

                // Get elevation for site.
                double elevation = UnitUtil.ScaleLength(unscaledElevation);

                if (IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement))
                {
                    relativePlacement = ExporterUtil.CreateAxis2Placement3D(file);
                }

                IFCAnyHandle localPlacement = IFCInstanceExporter.CreateLocalPlacement(file, null, relativePlacement);
                IFCAnyHandle ownerHistory   = ExporterCacheManager.OwnerHistoryHandle;
                string       siteObjectType = null;

                ProjectInfo projectInfo     = doc.ProjectInformation;
                Element     mainSiteElement = (element != null) ? element : projectInfo;

                bool   exportSite          = false;
                string siteGUID            = null;
                string siteName            = null;
                string siteLongName        = null;
                string siteLandTitleNumber = null;
                string siteDescription     = null;

                if (element != null)
                {
                    if (IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
                    {
                        exportSite = true;

                        // We will use the Project Information site name as the primary name, if it exists.
                        siteGUID = GUIDUtil.CreateSiteGUID(doc, element);

                        siteName        = NamingUtil.GetOverrideStringValue(projectInfo, "SiteName", NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element)));
                        siteDescription = NamingUtil.GetDescriptionOverride(element, null);

                        // Look in site element for "IfcLongName" or project information for either "IfcLongName" or "SiteLongName".
                        siteLongName = NamingUtil.GetLongNameOverride(projectInfo, NamingUtil.GetLongNameOverride(element, null));
                        if (string.IsNullOrWhiteSpace(siteLongName))
                        {
                            siteLongName = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLongName", null);
                        }

                        siteDescription = NamingUtil.GetOverrideStringValue(projectInfo, "SiteDescription", null);
                        siteObjectType  = NamingUtil.GetOverrideStringValue(projectInfo, "SiteObjectType", null);

                        // Look in site element for "IfcLandTitleNumber" or project information for "SiteLandTitleNumber".
                        siteLandTitleNumber = NamingUtil.GetOverrideStringValue(element, "IfcLandTitleNumber", null);
                        if (string.IsNullOrWhiteSpace(siteLandTitleNumber))
                        {
                            siteLandTitleNumber = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLandTitleNumber", null);
                        }
                    }
                }
                else
                {
                    exportSite = true;

                    siteGUID            = GUIDUtil.CreateProjectLevelGUID(doc, IFCProjectLevelGUIDType.Site);
                    siteName            = NamingUtil.GetOverrideStringValue(projectInfo, "SiteName", "Default");
                    siteLongName        = NamingUtil.GetLongNameOverride(projectInfo, NamingUtil.GetOverrideStringValue(projectInfo, "SiteLongName", null));
                    siteDescription     = NamingUtil.GetOverrideStringValue(projectInfo, "SiteDescription", null);
                    siteObjectType      = NamingUtil.GetOverrideStringValue(projectInfo, "SiteObjectType", null);
                    siteLandTitleNumber = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLandTitleNumber", null);

                    // don't bother if we have nothing in the site whatsoever.
                    if ((latitude.Count == 0 || longitude.Count == 0) && IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement) &&
                        string.IsNullOrWhiteSpace(siteLongName) && string.IsNullOrWhiteSpace(siteLandTitleNumber))
                    {
                        return;
                    }
                }

                COBieProjectInfo cobieProjectInfo = ExporterCacheManager.ExportOptionsCache.COBieProjectInfo;
                // Override Site information when it is a special COBie export
                if (ExporterCacheManager.ExportOptionsCache.ExportAs2x3COBIE24DesignDeliverable && cobieProjectInfo != null)
                {
                    siteName        = cobieProjectInfo.SiteLocation;
                    siteDescription = cobieProjectInfo.SiteDescription;
                }

                if (exportSite)
                {
                    IFCAnyHandle address = null;
                    if (Exporter.NeedToCreateAddressForSite(doc))
                    {
                        address = Exporter.CreateIFCAddress(file, doc, projectInfo);
                    }

                    siteHandle = IFCInstanceExporter.CreateSite(exporterIFC, element, siteGUID, ownerHistory, siteName, siteDescription, siteObjectType, localPlacement,
                                                                siteRepresentation, siteLongName, IFCElementComposition.Element, latitude, longitude, elevation, siteLandTitleNumber, address);
                    productWrapper.AddSite(mainSiteElement, siteHandle);
                    ExporterCacheManager.SiteHandle = siteHandle;


                    // Getting Pset_SiteCommon data from parameters
                    // IFC2x3: BuildableArea, TotalArea, BuildingHeightLimit
                    HashSet <IFCAnyHandle> properties = new HashSet <IFCAnyHandle>();
                    IFCAnyHandle           propSingleValue;
                    propSingleValue = PropertyUtil.CreateAreaMeasurePropertyFromElement(file, exporterIFC, projectInfo,
                                                                                        "Pset_SiteCommon.BuildableArea", "BuildableArea", PropertyValueType.SingleValue);
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(propSingleValue))
                    {
                        properties.Add(propSingleValue);
                    }

                    propSingleValue = PropertyUtil.CreateAreaMeasurePropertyFromElement(file, exporterIFC, projectInfo,
                                                                                        "Pset_SiteCommon.TotalArea", "TotalArea", PropertyValueType.SingleValue);
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(propSingleValue))
                    {
                        properties.Add(propSingleValue);
                    }

                    propSingleValue = PropertyUtil.CreatePositiveLengthMeasurePropertyFromElement(file, exporterIFC, projectInfo,
                                                                                                  "Pset_SiteCommon.BuildingHeightLimit", null, "BuildingHeightLimit", PropertyValueType.SingleValue);
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(propSingleValue))
                    {
                        properties.Add(propSingleValue);
                    }

                    if (!ExporterCacheManager.ExportOptionsCache.ExportAsOlderThanIFC4)
                    {
                        propSingleValue = PropertyUtil.CreateIdentifierPropertyFromElement(file, projectInfo,
                                                                                           "Pset_SiteCommon.Reference", "Reference", PropertyValueType.SingleValue);
                        if (!IFCAnyHandleUtil.IsNullOrHasNoValue(propSingleValue))
                        {
                            properties.Add(propSingleValue);
                        }

                        propSingleValue = PropertyUtil.CreatePositiveRatioPropertyFromElement(file, exporterIFC, projectInfo,
                                                                                              "Pset_SiteCommon.SiteCoverageRatio", "SiteCoverageRatio", PropertyValueType.SingleValue);
                        if (!IFCAnyHandleUtil.IsNullOrHasNoValue(propSingleValue))
                        {
                            properties.Add(propSingleValue);
                        }

                        propSingleValue = PropertyUtil.CreatePositiveRatioPropertyFromElement(file, exporterIFC, projectInfo,
                                                                                              "Pset_SiteCommon.FloorAreaRatio", "FloorAreaRatio", PropertyValueType.SingleValue);
                        if (!IFCAnyHandleUtil.IsNullOrHasNoValue(propSingleValue))
                        {
                            properties.Add(propSingleValue);
                        }
                    }

                    if (properties.Count > 0)
                    {
                        IFCInstanceExporter.CreatePropertySet(file,
                                                              GUIDUtil.CreateGUID(), ExporterCacheManager.OwnerHistoryHandle, "Pset_SiteCommon",
                                                              null, properties);
                    }
                }


                tr.Commit();
            }
        }
        /// <summary>
        /// Base implementation to export IFC site object.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="document">The Revit document.  It may be null if element isn't.</param>
        /// <param name="element">The element.  It may be null if document isn't.</param>
        /// <param name="geometryElement">The geometry element.</param>
        /// <param name="productWrapper">The ProductWrapper.</param>
        private static void ExportSiteBase(ExporterIFC exporterIFC, Document document, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
        {
            IFCAnyHandle siteHandle = ExporterCacheManager.SiteHandle;

            int numSiteElements = (!IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle) ? 1 : 0);

            if (element == null && (numSiteElements != 0))
            {
                return;
            }

            Document doc = document;

            if (doc == null)
            {
                if (element != null)
                {
                    doc = element.Document;
                }
                else
                {
                    throw new ArgumentException("Both document and element are null.");
                }
            }

            IFCFile file = exporterIFC.GetFile();

            using (IFCTransaction tr = new IFCTransaction(file))
            {
                IFCAnyHandle siteRepresentation = null;
                if (element != null)
                {
                    // It would be possible that they actually represent several different sites with different buildings,
                    // but until we have a concept of a building in Revit, we have to assume 0-1 sites, 1 building.
                    bool appendedToSite     = false;
                    bool exportAsFacetation = !ExporterCacheManager.ExportOptionsCache.ExportAsCoordinationView2;
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
                    {
                        IList <IFCAnyHandle> representations = IFCAnyHandleUtil.GetProductRepresentations(siteHandle);
                        if (representations.Count > 0)
                        {
                            IFCAnyHandle bodyRep     = representations[0];
                            IFCAnyHandle boundaryRep = null;
                            if (representations.Count > 1)
                            {
                                boundaryRep = representations[1];
                            }

                            siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation, ref bodyRep, ref boundaryRep);
                            if (representations.Count == 1 && !IFCAnyHandleUtil.IsNullOrHasNoValue(boundaryRep))
                            {
                                // If the first site has no boundaryRep,
                                // we will add the boundaryRep from second site to it.
                                representations.Clear();
                                representations.Add(boundaryRep);
                                IFCAnyHandleUtil.AddProductRepresentations(siteHandle, representations);
                            }
                            appendedToSite = true;
                        }
                    }

                    if (!appendedToSite)
                    {
                        siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation);
                    }
                }

                List <int>      latitude     = new List <int>();
                List <int>      longitude    = new List <int>();
                ProjectLocation projLocation = doc.ActiveProjectLocation;

                IFCAnyHandle relativePlacement = null;
                double       unscaledElevation = 0.0;
                if (projLocation != null)
                {
                    const double scaleToDegrees = 180 / Math.PI;
                    double       latitudeInDeg  = projLocation.SiteLocation.Latitude * scaleToDegrees;
                    double       longitudeInDeg = projLocation.SiteLocation.Longitude * scaleToDegrees;

                    ExporterUtil.GetSafeProjectPositionElevation(doc, out unscaledElevation);

                    int latDeg     = ((int)latitudeInDeg); latitudeInDeg -= latDeg; latitudeInDeg *= 60;
                    int latMin     = ((int)latitudeInDeg); latitudeInDeg -= latMin; latitudeInDeg *= 60;
                    int latSec     = ((int)latitudeInDeg); latitudeInDeg -= latSec; latitudeInDeg *= 1000000;
                    int latFracSec = ((int)latitudeInDeg);
                    latitude.Add(latDeg);
                    latitude.Add(latMin);
                    latitude.Add(latSec);
                    if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
                    {
                        latitude.Add(latFracSec);
                    }

                    int longDeg     = ((int)longitudeInDeg); longitudeInDeg -= longDeg; longitudeInDeg *= 60;
                    int longMin     = ((int)longitudeInDeg); longitudeInDeg -= longMin; longitudeInDeg *= 60;
                    int longSec     = ((int)longitudeInDeg); longitudeInDeg -= longSec; longitudeInDeg *= 1000000;
                    int longFracSec = ((int)longitudeInDeg);
                    longitude.Add(longDeg);
                    longitude.Add(longMin);
                    longitude.Add(longSec);
                    if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
                    {
                        longitude.Add(longFracSec);
                    }

                    Transform siteSharedCoordinatesTrf = projLocation.GetTransform().Inverse;
                    if (!siteSharedCoordinatesTrf.IsIdentity)
                    {
                        double unscaledSiteElevation = ExporterCacheManager.ExportOptionsCache.IncludeSiteElevation ? 0.0 : unscaledElevation;
                        XYZ    orig = UnitUtil.ScaleLength(siteSharedCoordinatesTrf.Origin - new XYZ(0, 0, unscaledSiteElevation));
                        relativePlacement = ExporterUtil.CreateAxis2Placement3D(file, orig, siteSharedCoordinatesTrf.BasisZ, siteSharedCoordinatesTrf.BasisX);
                    }
                }

                // Get elevation for site.
                double elevation = UnitUtil.ScaleLength(unscaledElevation);

                if (IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement))
                {
                    relativePlacement = ExporterUtil.CreateAxis2Placement3D(file);
                }

                IFCAnyHandle localPlacement = IFCInstanceExporter.CreateLocalPlacement(file, null, relativePlacement);
                IFCAnyHandle ownerHistory   = exporterIFC.GetOwnerHistoryHandle();
                string       siteObjectType = NamingUtil.CreateIFCObjectName(exporterIFC, element);

                ProjectInfo projectInfo     = doc.ProjectInformation;
                Element     mainSiteElement = (element != null) ? element : projectInfo;

                bool   exportSite          = false;
                string siteGUID            = null;
                string siteName            = null;
                string siteLongName        = null;
                string siteLandTitleNumber = null;
                string siteDescription     = null;

                if (element != null)
                {
                    if (IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
                    {
                        exportSite = true;

                        // We will use the Project Information site name as the primary name, if it exists.
                        siteGUID = GUIDUtil.CreateSiteGUID(doc, element);

                        siteName        = NamingUtil.GetOverrideStringValue(projectInfo, "SiteName", NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element)));
                        siteDescription = NamingUtil.GetDescriptionOverride(element, null);
                        siteObjectType  = NamingUtil.GetObjectTypeOverride(element, siteObjectType);

                        // Look in site element for "IfcLongName" or project information for either "IfcLongName" or "SiteLongName".
                        siteLongName = NamingUtil.GetLongNameOverride(projectInfo, NamingUtil.GetLongNameOverride(element, null));
                        if (string.IsNullOrWhiteSpace(siteLongName))
                        {
                            siteLongName = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLongName", null);
                        }

                        // Look in site element for "IfcLandTitleNumber" or project information for "SiteLandTitleNumber".
                        siteLandTitleNumber = NamingUtil.GetOverrideStringValue(element, "IfcLandTitleNumber", null);
                        if (string.IsNullOrWhiteSpace(siteLandTitleNumber))
                        {
                            siteLandTitleNumber = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLandTitleNumber", null);
                        }
                    }
                }
                else
                {
                    exportSite = true;

                    siteGUID            = GUIDUtil.CreateProjectLevelGUID(doc, IFCProjectLevelGUIDType.Site);
                    siteName            = NamingUtil.GetOverrideStringValue(projectInfo, "SiteName", "Default");
                    siteLongName        = NamingUtil.GetLongNameOverride(projectInfo, NamingUtil.GetOverrideStringValue(projectInfo, "SiteLongName", null));
                    siteLandTitleNumber = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLandTitleNumber", null);

                    // don't bother if we have nothing in the site whatsoever.
                    if ((latitude.Count == 0 || longitude.Count == 0) && IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement) &&
                        string.IsNullOrWhiteSpace(siteLongName) && string.IsNullOrWhiteSpace(siteLandTitleNumber))
                    {
                        return;
                    }
                }

                if (exportSite)
                {
                    siteHandle = IFCInstanceExporter.CreateSite(file, siteGUID, ownerHistory, siteName, siteDescription, siteObjectType, localPlacement,
                                                                siteRepresentation, siteLongName, Toolkit.IFCElementComposition.Element, latitude, longitude, elevation, siteLandTitleNumber, null);
                    productWrapper.AddSite(mainSiteElement, siteHandle);
                    ExporterCacheManager.SiteHandle = siteHandle;
                }


                tr.Commit();
            }
        }
        /// <summary>
        /// Exports a Rebar to IFC ReinforcingBar.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="rebarItem">The rebar to be exported.  This might be an element or a sub-element.</param>
        /// <param name="rebarElement">The element that contains the rebar to be exported.  This may be the same as rebarItem.</param>
        /// <param name="itemIndex">If greater than 0, the index of the first rebar in the rebarItem in the rebarElement, used for naming and GUID creation.</param>
        /// <param name="productWrapper">The ProductWrapper object.</param>
        /// <returns>The set of handles created, to add to the ProductWrapper in the calling function.</returns>
        private static ISet <DelayedProductWrapper> ExportRebar(ExporterIFC exporterIFC, object rebarItem, Element rebarElement, int itemIndex, ProductWrapper productWrapper)
        {
            // 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>("IfcReinforcingBar", out elementClassTypeEnum))
            {
                if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
                {
                    return(null);
                }
            }

            IFCFile file = exporterIFC.GetFile();
            HashSet <DelayedProductWrapper> createdRebars = new HashSet <DelayedProductWrapper>();

            int rebarQuantity = GetRebarQuantity(rebarItem);

            if (rebarQuantity == 0)
            {
                return(null);
            }

            using (IFCTransaction transaction = new IFCTransaction(file))
            {
                using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, rebarElement))
                {
                    bool         cannotExportRebar = false;
                    IFCAnyHandle rebarHandle       = ExportRebarAsProxyElementInView(exporterIFC, rebarElement, productWrapper, out cannotExportRebar);
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(rebarHandle) || cannotExportRebar)
                    {
                        if (!cannotExportRebar)
                        {
                            transaction.Commit();
                        }
                        return(null); // Rebar doesn't create a group.
                    }

                    IFCAnyHandle prodRep = null;

                    double totalBarLengthUnscale = GetRebarTotalLength(rebarItem);
                    double volumeUnscale         = GetRebarVolume(rebarItem);
                    double totalBarLength        = UnitUtil.ScaleLength(totalBarLengthUnscale);

                    if (MathUtil.IsAlmostZero(totalBarLength))
                    {
                        return(null);
                    }

                    ElementId materialId = ElementId.InvalidElementId;
                    ParameterUtil.GetElementIdValueFromElementOrSymbol(rebarElement, BuiltInParameter.MATERIAL_ID_PARAM, out materialId);

                    double diameter = GetBarDiameter(rebarItem);
                    double radius   = diameter / 2.0;
                    double longitudinalBarNominalDiameter  = diameter;
                    double longitudinalBarCrossSectionArea = UnitUtil.ScaleArea(volumeUnscale / totalBarLengthUnscale);

                    int numberOfBarPositions = GetNumberOfBarPositions(rebarItem);

                    string steelGrade = NamingUtil.GetOverrideStringValue(rebarElement, "SteelGrade", null);

                    // Allow use of IFC2x3 or IFC4 naming.
                    string predefinedType = NamingUtil.GetOverrideStringValue(rebarElement, "BarRole", null);
                    if (string.IsNullOrWhiteSpace(predefinedType))
                    {
                        predefinedType = NamingUtil.GetOverrideStringValue(rebarElement, "PredefinedType", null);
                    }
                    IFCReinforcingBarRole role = GetReinforcingBarRole(predefinedType);

                    string origRebarName = NamingUtil.GetNameOverride(rebarElement, NamingUtil.GetIFCName(rebarElement));

                    const int maxBarGUIDS = IFCReinforcingBarSubElements.BarEnd - IFCReinforcingBarSubElements.BarStart + 1;
                    ElementId categoryId  = CategoryUtil.GetSafeCategoryId(rebarElement);

                    IFCAnyHandle originalPlacement = setter.LocalPlacement;

                    // Potential issue : totalBarLength has a rounded value but individual lengths (from centerlines) do not have rounded values.
                    // Also dividing a rounded totalBarLength does not result in barLength rounded by the same round value.
                    double        barLength  = totalBarLength / rebarQuantity;
                    IList <Curve> baseCurves = GetRebarCenterlineCurves(rebarItem, true, false, false);

                    ElementId    barLengthParamId   = new ElementId(BuiltInParameter.REBAR_ELEM_LENGTH);
                    ParameterSet rebarElementParams = rebarElement.Parameters;
                    for (int ii = 0; ii < numberOfBarPositions; ii++)
                    {
                        if (!DoesBarExistAtPosition(rebarItem, ii))
                        {
                            continue;
                        }

                        Rebar rebar = rebarElement as Rebar;
                        if ((rebar != null) && (rebar.DistributionType == DistributionType.VaryingLength || rebar.IsRebarFreeForm()))
                        {
                            baseCurves = GetRebarCenterlineCurves(rebar, true, false, false, MultiplanarOption.IncludeOnlyPlanarCurves, ii);
                            DoubleParameterValue barLengthParamVal = rebar.GetParameterValueAtIndex(barLengthParamId, ii) as DoubleParameterValue;
                            if (barLengthParamVal != null)
                            {
                                barLength = barLengthParamVal.Value;
                            }
                        }

                        int indexForNamingAndGUID = (itemIndex > 0) ? ii + itemIndex : ii + 1;

                        string rebarName = NamingUtil.GetNameOverride(rebarElement, origRebarName + ": " + indexForNamingAndGUID);

                        Transform barTrf = GetBarPositionTransform(rebarItem, ii);

                        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, rebarElement, categoryId, exporterIFC.Get3DContextHandle("Body"), bodyItems, null);
                        IList <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
                        shapeReps.Add(shapeRep);
                        prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);

                        IFCAnyHandle copyLevelPlacement = (ii == 0) ? originalPlacement : ExporterUtil.CopyLocalPlacement(file, originalPlacement);

                        string rebarGUID = (indexForNamingAndGUID < maxBarGUIDS) ?
                                           GUIDUtil.CreateSubElementGUID(rebarElement, indexForNamingAndGUID + (int)IFCReinforcingBarSubElements.BarStart - 1) :
                                           GUIDUtil.CreateGUID();
                        IFCAnyHandle elemHnd = IFCInstanceExporter.CreateReinforcingBar(exporterIFC, rebarElement, rebarGUID, ExporterCacheManager.OwnerHistoryHandle,
                                                                                        copyLevelPlacement, prodRep, steelGrade, longitudinalBarNominalDiameter, longitudinalBarCrossSectionArea, barLength, role, null);
                        IFCAnyHandleUtil.SetAttribute(elemHnd, "Name", rebarName);

                        // We will not add the element ot the productWrapper here, but instead in the function that calls
                        // ExportRebar.  The reason for this is that we don't currently know if the handles such be associated
                        // to the level or not, depending on whether they will or won't be grouped.
                        createdRebars.Add(new DelayedProductWrapper(rebarElement, elemHnd, setter.LevelInfo));

                        CacheSubelementParameterValues(rebarElement, rebarElementParams, ii, elemHnd);

                        ExporterCacheManager.HandleToElementCache.Register(elemHnd, rebarElement.Id);
                        CategoryUtil.CreateMaterialAssociation(exporterIFC, elemHnd, materialId);
                    }
                }
                transaction.Commit();
            }
            return(createdRebars);
        }
Beispiel #10
0
        /// <summary>
        /// Exports an element as an IfcReinforcingMesh.
        /// </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 ExportFabricSheet(ExporterIFC exporterIFC, FabricSheet sheet,
                                             GeometryElement geometryElement, ProductWrapper productWrapper)
        {
            if (sheet == null || geometryElement == null)
            {
                return(false);
            }

            // Check the intended IFC entity or type name is in the exclude list specified in the UI
            Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcReinforcingMesh;
            if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
            {
                return(false);
            }

            Document doc  = sheet.Document;
            IFCFile  file = exporterIFC.GetFile();

            using (IFCTransaction tr = new IFCTransaction(file))
            {
                // Check for containment override
                IFCAnyHandle overrideContainerHnd = null;
                ElementId    overrideContainerId  = ParameterUtil.OverrideContainmentParameter(exporterIFC, sheet, out overrideContainerHnd);

                using (PlacementSetter placementSetter = PlacementSetter.Create(exporterIFC, sheet, null, null, overrideContainerId, overrideContainerHnd))
                {
                    using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
                    {
                        ecData.SetLocalPlacement(placementSetter.LocalPlacement);

                        ElementId categoryId = CategoryUtil.GetSafeCategoryId(sheet);

                        ElementId materialId = ElementId.InvalidElementId;
                        ParameterUtil.GetElementIdValueFromElementOrSymbol(sheet, BuiltInParameter.MATERIAL_ID_PARAM, out materialId);

                        string       guid            = GUIDUtil.CreateGUID(sheet);
                        IFCAnyHandle ownerHistory    = ExporterCacheManager.OwnerHistoryHandle;
                        string       revitObjectType = NamingUtil.GetFamilyAndTypeName(sheet);

                        IFCAnyHandle localPlacement = ecData.GetLocalPlacement();

                        string steelGrade = NamingUtil.GetOverrideStringValue(sheet, "SteelGrade", null);
                        double?meshLength = sheet.CutOverallLength;
                        double?meshWidth  = sheet.CutOverallWidth;

                        Element         fabricSheetTypeElem = doc.GetElement(sheet.GetTypeId());
                        FabricSheetType fabricSheetType     = (fabricSheetTypeElem == null) ? null : (fabricSheetTypeElem as FabricSheetType);

                        double longitudinalBarNominalDiameter  = 0.0;
                        double transverseBarNominalDiameter    = 0.0;
                        double longitudinalBarCrossSectionArea = 0.0;
                        double transverseBarCrossSectionArea   = 0.0;
                        double longitudinalBarSpacing          = 0.0;
                        double transverseBarSpacing            = 0.0;
                        if (fabricSheetType != null)
                        {
                            Element        majorFabricWireTypeElem = doc.GetElement(fabricSheetType.MajorDirectionWireType);
                            FabricWireType majorFabricWireType     = (majorFabricWireTypeElem == null) ? null : (majorFabricWireTypeElem as FabricWireType);
                            if (majorFabricWireType != null)
                            {
                                longitudinalBarNominalDiameter = UnitUtil.ScaleLength(majorFabricWireType.WireDiameter);
                                double localRadius = longitudinalBarNominalDiameter / 2.0;
                                longitudinalBarCrossSectionArea = localRadius * localRadius * Math.PI;
                            }

                            Element        minorFabricWireTypeElem = doc.GetElement(fabricSheetType.MinorDirectionWireType);
                            FabricWireType minorFabricWireType     = (minorFabricWireTypeElem == null) ? null : (minorFabricWireTypeElem as FabricWireType);
                            if (minorFabricWireType != null)
                            {
                                transverseBarNominalDiameter = UnitUtil.ScaleLength(minorFabricWireType.WireDiameter);
                                double localRadius = transverseBarNominalDiameter / 2.0;
                                transverseBarCrossSectionArea = localRadius * localRadius * Math.PI;
                            }

                            longitudinalBarSpacing = UnitUtil.ScaleLength(fabricSheetType.MajorSpacing);
                            transverseBarSpacing   = UnitUtil.ScaleLength(fabricSheetType.MinorSpacing);
                        }

                        ISet <IFCAnyHandle> bodyItems = new HashSet <IFCAnyHandle>();

                        IList <Curve> wireCenterlines = sheet.GetWireCenterlines(WireDistributionDirection.Major);
                        foreach (Curve wireCenterline in wireCenterlines)
                        {
                            IFCAnyHandle bodyItem = GeometryUtil.CreateSweptDiskSolid(exporterIFC, file, wireCenterline, longitudinalBarNominalDiameter, null);
                            if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyItem))
                            {
                                bodyItems.Add(bodyItem);
                            }
                        }

                        wireCenterlines = sheet.GetWireCenterlines(WireDistributionDirection.Minor);
                        foreach (Curve wireCenterline in wireCenterlines)
                        {
                            IFCAnyHandle bodyItem = GeometryUtil.CreateSweptDiskSolid(exporterIFC, file, wireCenterline, transverseBarNominalDiameter, null);
                            if (!IFCAnyHandleUtil.IsNullOrHasNoValue(bodyItem))
                            {
                                bodyItems.Add(bodyItem);
                            }
                        }

                        IFCAnyHandle shapeRep = (bodyItems.Count > 0) ?
                                                RepresentationUtil.CreateAdvancedSweptSolidRep(exporterIFC, sheet, categoryId, exporterIFC.Get3DContextHandle("Body"), bodyItems, null) :
                                                null;
                        IList <IFCAnyHandle> shapeReps = null;
                        if (shapeRep != null)
                        {
                            shapeReps = new List <IFCAnyHandle>();
                            shapeReps.Add(shapeRep);
                        }
                        IFCAnyHandle prodRep = (shapeReps != null) ? IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps) : null;

                        IFCAnyHandle fabricSheet = IFCInstanceExporter.CreateReinforcingMesh(exporterIFC, sheet, guid, ownerHistory, localPlacement,
                                                                                             prodRep, steelGrade, meshLength, meshWidth, longitudinalBarNominalDiameter, transverseBarNominalDiameter,
                                                                                             longitudinalBarCrossSectionArea, transverseBarCrossSectionArea, longitudinalBarSpacing, transverseBarSpacing);
                        IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcReinforcingMesh);

                        ElementId fabricAreaId = sheet.FabricAreaOwnerId;
                        if (fabricAreaId != ElementId.InvalidElementId)
                        {
                            HashSet <IFCAnyHandle> fabricSheets = null;
                            if (!ExporterCacheManager.FabricAreaHandleCache.TryGetValue(fabricAreaId, out fabricSheets))
                            {
                                fabricSheets = new HashSet <IFCAnyHandle>();
                                ExporterCacheManager.FabricAreaHandleCache[fabricAreaId] = fabricSheets;
                            }
                            fabricSheets.Add(fabricSheet);
                        }

                        productWrapper.AddElement(sheet, fabricSheet, placementSetter.LevelInfo, ecData, true, exportInfo);

                        CategoryUtil.CreateMaterialAssociation(exporterIFC, fabricSheet, materialId);
                    }
                }
                tr.Commit();
                return(true);
            }
        }
Beispiel #11
0
        /// <summary>
        /// Exports a Rebar to IFC ReinforcingBar.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="rebarItem">The rebar to be exported.  This might be an element or a sub-element.</param>
        /// <param name="rebarElement">The element that contains the rebar to be exported.  This may be the same as rebarItem.</param>
        /// <param name="itemIndex">If greater than 0, the index of the first rebar in the rebarItem in the rebarElement, used for naming and GUID creation.</param>
        /// <param name="productWrapper">The ProductWrapper object.</param>
        /// <returns>The set of handles created, to add to the ProductWrapper in the calling function.</returns>
        private static ISet <DelayedProductWrapper> ExportRebar(ExporterIFC exporterIFC, object rebarItem, Element rebarElement, int itemIndex, ProductWrapper productWrapper)
        {
            IFCFile file = exporterIFC.GetFile();
            HashSet <DelayedProductWrapper> createdRebars = new HashSet <DelayedProductWrapper>();

            int rebarQuantity = GetRebarQuantity(rebarItem);

            if (rebarQuantity == 0)
            {
                return(null);
            }

            using (IFCTransaction transaction = new IFCTransaction(file))
            {
                using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, rebarElement))
                {
                    bool         cannotExportRebar = false;
                    IFCAnyHandle rebarHandle       = ExportRebarAsProxyElementInView(exporterIFC, rebarElement, productWrapper, out cannotExportRebar);
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(rebarHandle) || cannotExportRebar)
                    {
                        if (!cannotExportRebar)
                        {
                            transaction.Commit();
                        }
                        return(null); // Rebar doesn't create a group.
                    }

                    IFCAnyHandle prodRep = null;

                    double totalBarLengthUnscale = GetRebarTotalLength(rebarItem);
                    double volumeUnscale         = GetRebarVolume(rebarItem);
                    double totalBarLength        = UnitUtil.ScaleLength(totalBarLengthUnscale);

                    if (MathUtil.IsAlmostZero(totalBarLength))
                    {
                        return(null);
                    }

                    ElementId materialId = ElementId.InvalidElementId;
                    ParameterUtil.GetElementIdValueFromElementOrSymbol(rebarElement, BuiltInParameter.MATERIAL_ID_PARAM, out materialId);

                    double diameter = GetBarDiameter(rebarItem);
                    double radius   = diameter / 2.0;
                    double longitudinalBarNominalDiameter  = diameter;
                    double longitudinalBarCrossSectionArea = UnitUtil.ScaleArea(volumeUnscale / totalBarLengthUnscale);

                    int numberOfBarPositions = GetNumberOfBarPositions(rebarItem);

                    string steelGrade = NamingUtil.GetOverrideStringValue(rebarElement, "SteelGrade", null);

                    // Allow use of IFC2x3 or IFC4 naming.
                    string predefinedType = NamingUtil.GetOverrideStringValue(rebarElement, "BarRole", null);
                    if (string.IsNullOrWhiteSpace(predefinedType))
                    {
                        predefinedType = NamingUtil.GetOverrideStringValue(rebarElement, "PredefinedType", null);
                    }
                    IFCReinforcingBarRole role = GetReinforcingBarRole(predefinedType);

                    string origRebarName    = NamingUtil.GetNameOverride(rebarElement, NamingUtil.GetIFCName(rebarElement));
                    string rebarDescription = NamingUtil.GetDescriptionOverride(rebarElement, null);
                    string rebarObjectType  = NamingUtil.GetObjectTypeOverride(rebarElement, NamingUtil.CreateIFCObjectName(exporterIFC, rebarElement));
                    string rebarTag         = NamingUtil.GetTagOverride(rebarElement, NamingUtil.CreateIFCElementId(rebarElement));

                    const int maxBarGUIDS = IFCReinforcingBarSubElements.BarEnd - IFCReinforcingBarSubElements.BarStart + 1;
                    ElementId categoryId  = CategoryUtil.GetSafeCategoryId(rebarElement);

                    IFCAnyHandle originalPlacement = setter.LocalPlacement;

                    double        barLength  = totalBarLength / rebarQuantity;
                    IList <Curve> baseCurves = GetRebarCenterlineCurves(rebarItem, true, false, false);

                    for (int ii = 0; ii < numberOfBarPositions; ii++)
                    {
                        if (!DoesBarExistAtPosition(rebarItem, ii))
                        {
                            continue;
                        }

                        int indexForNamingAndGUID = (itemIndex > 0) ? ii + itemIndex : ii + 1;

                        string rebarName = NamingUtil.GetNameOverride(rebarElement, origRebarName + ": " + indexForNamingAndGUID);

                        Transform barTrf = GetBarPositionTransform(rebarItem, ii);

                        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, rebarElement, categoryId, exporterIFC.Get3DContextHandle("Body"), bodyItems, null);
                        IList <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
                        shapeReps.Add(shapeRep);
                        prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);

                        IFCAnyHandle copyLevelPlacement = (ii == 0) ? originalPlacement : ExporterUtil.CopyLocalPlacement(file, originalPlacement);

                        string rebarGUID = (indexForNamingAndGUID < maxBarGUIDS) ?
                                           GUIDUtil.CreateSubElementGUID(rebarElement, indexForNamingAndGUID + (int)IFCReinforcingBarSubElements.BarStart - 1) :
                                           GUIDUtil.CreateGUID();
                        IFCAnyHandle elemHnd = IFCInstanceExporter.CreateReinforcingBar(file, rebarGUID, ExporterCacheManager.OwnerHistoryHandle,
                                                                                        rebarName, rebarDescription, rebarObjectType, copyLevelPlacement,
                                                                                        prodRep, rebarTag, steelGrade, longitudinalBarNominalDiameter, longitudinalBarCrossSectionArea,
                                                                                        barLength, role, null);

                        // We will not add the element ot the productWrapper here, but instead in the function that calls
                        // ExportRebar.  The reason for this is that we don't currently know if the handles such be associated
                        // to the level or not, depending on whether they will or won't be grouped.
                        createdRebars.Add(new DelayedProductWrapper(rebarElement, elemHnd, setter.LevelInfo));

                        ExporterCacheManager.HandleToElementCache.Register(elemHnd, rebarElement.Id);

                        CategoryUtil.CreateMaterialAssociation(exporterIFC, elemHnd, materialId);
                    }
                }
                transaction.Commit();
            }
            return(createdRebars);
        }
        /// <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);
        }
Beispiel #13
0
        /// <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);
        }
Beispiel #14
0
        /// <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();
            }
        }
Beispiel #15
0
        /// <summary>
        /// Base implementation to export IFC site object.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="document">The Revit document.  It may be null if element isn't.</param>
        /// <param name="element">The element.  It may be null if document isn't.</param>
        /// <param name="geometryElement">The geometry element.</param>
        /// <param name="productWrapper">The ProductWrapper.</param>
        private static void ExportSiteBase(ExporterIFC exporterIFC, Document document, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
        {
            IFCAnyHandle siteHandle = ExporterCacheManager.SiteHandle;

            // Nothing to do if we've already created an IfcSite, and have no site element to try to
            // export or append to the existing site.
            if (element == null && !IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
            {
                return;
            }

            Document doc = document;

            if (doc == null)
            {
                if (element != null)
                {
                    doc = element.Document;
                }
                else
                {
                    throw new ArgumentException("Both document and element are null.");
                }
            }

            // Check the intended IFC entity or type name is in the exclude list specified in the UI
            Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcSite;
            if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
            {
                return;
            }

            IFCFile file = exporterIFC.GetFile();

            using (IFCTransaction tr = new IFCTransaction(file))
            {
                IFCAnyHandle siteRepresentation = null;
                if (element != null)
                {
                    // It would be possible that they actually represent several different sites with different buildings,
                    // but until we have a concept of a building in Revit, we have to assume 0-1 sites, 1 building.
                    bool appendedToSite     = false;
                    bool exportAsFacetation = !ExporterCacheManager.ExportOptionsCache.ExportAsCoordinationView2;
                    if (!IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
                    {
                        IList <IFCAnyHandle> representations = IFCAnyHandleUtil.GetProductRepresentations(siteHandle);
                        if (representations.Count > 0)
                        {
                            IFCAnyHandle bodyRep     = representations[0];
                            IFCAnyHandle boundaryRep = null;
                            if (representations.Count > 1)
                            {
                                boundaryRep = representations[1];
                            }

                            siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation, ref bodyRep, ref boundaryRep);
                            if (representations.Count == 1 && !IFCAnyHandleUtil.IsNullOrHasNoValue(boundaryRep))
                            {
                                // If the first site has no boundaryRep,
                                // we will add the boundaryRep from second site to it.
                                representations.Clear();
                                representations.Add(boundaryRep);
                                IFCAnyHandleUtil.AddProductRepresentations(siteHandle, representations);
                            }
                            appendedToSite = true;
                        }
                    }

                    if (!appendedToSite)
                    {
                        siteRepresentation = RepresentationUtil.CreateSurfaceProductDefinitionShape(exporterIFC, element, geometryElement, true, exportAsFacetation);
                    }
                }

                List <int>      latitude     = new List <int>();
                List <int>      longitude    = new List <int>();
                ProjectLocation projLocation = doc.ActiveProjectLocation;

                double unscaledElevation = 0.0;
                if (projLocation != null)
                {
                    const double scaleToDegrees = 180 / Math.PI;
                    double       latitudeInDeg  = projLocation.GetSiteLocation().Latitude *scaleToDegrees;
                    double       longitudeInDeg = projLocation.GetSiteLocation().Longitude *scaleToDegrees;

                    ExporterUtil.GetSafeProjectPositionElevation(doc, out unscaledElevation);

                    int latDeg     = ((int)latitudeInDeg); latitudeInDeg -= latDeg; latitudeInDeg *= 60;
                    int latMin     = ((int)latitudeInDeg); latitudeInDeg -= latMin; latitudeInDeg *= 60;
                    int latSec     = ((int)latitudeInDeg); latitudeInDeg -= latSec; latitudeInDeg *= 1000000;
                    int latFracSec = ((int)latitudeInDeg);
                    latitude.Add(latDeg);
                    latitude.Add(latMin);
                    latitude.Add(latSec);
                    if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
                    {
                        latitude.Add(latFracSec);
                    }

                    int longDeg     = ((int)longitudeInDeg); longitudeInDeg -= longDeg; longitudeInDeg *= 60;
                    int longMin     = ((int)longitudeInDeg); longitudeInDeg -= longMin; longitudeInDeg *= 60;
                    int longSec     = ((int)longitudeInDeg); longitudeInDeg -= longSec; longitudeInDeg *= 1000000;
                    int longFracSec = ((int)longitudeInDeg);
                    longitude.Add(longDeg);
                    longitude.Add(longMin);
                    longitude.Add(longSec);
                    if (!ExporterCacheManager.ExportOptionsCache.ExportAs2x2)
                    {
                        longitude.Add(longFracSec);
                    }
                }

                // Get elevation for site.
                double elevation = UnitUtil.ScaleLength(unscaledElevation);

                IFCAnyHandle relativePlacement = null;
                IFCAnyHandle localPlacement    = null;
                if (ExporterCacheManager.ExportOptionsCache.ExportingLink)
                {
                    relativePlacement = ExporterUtil.CreateAxis2Placement3D(file, UnitUtil.ScaleLength(ExporterCacheManager.HostRvtFileWCS.Origin), ExporterCacheManager.HostRvtFileWCS.BasisZ, ExporterCacheManager.HostRvtFileWCS.BasisX);
                    localPlacement    = IFCInstanceExporter.CreateLocalPlacement(file, null, relativePlacement);
                }
                else
                {
                    Transform wcs = GeometryUtil.GetWCS(doc);
                    if (wcs != null && !wcs.IsIdentity)
                    {
                        relativePlacement = ExporterUtil.CreateAxis2Placement3D(file, wcs.Origin, wcs.BasisZ, wcs.BasisX);
                        localPlacement    = IFCInstanceExporter.CreateLocalPlacement(file, null, relativePlacement);
                        ExporterCacheManager.HostRvtFileWCS        = wcs;
                        ExporterCacheManager.HostRvtFileWCS.Origin = UnitUtil.UnscaleLength(ExporterCacheManager.HostRvtFileWCS.Origin);
                    }
                    else
                    {
                        ExporterCacheManager.HostRvtFileWCS = Transform.Identity;
                    }
                }

                if (IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement))
                {
                    relativePlacement = ExporterUtil.CreateAxis2Placement3D(file);
                }

                if (IFCAnyHandleUtil.IsNullOrHasNoValue(localPlacement))
                {
                    localPlacement = IFCInstanceExporter.CreateLocalPlacement(file, null, relativePlacement);
                }

                IFCAnyHandle ownerHistory   = ExporterCacheManager.OwnerHistoryHandle;
                string       siteObjectType = null;

                ProjectInfo projectInfo     = doc.ProjectInformation;
                Element     mainSiteElement = (element != null) ? element : projectInfo;

                string siteGUID            = null;
                string siteName            = null;
                string siteLongName        = null;
                string siteLandTitleNumber = null;
                string siteDescription     = null;
                bool   exportSite          = false;

                if ((element != null && IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle)) || (element == null))
                {
                    exportSite = true;

                    // We will use the Project Information site name as the primary name, if it exists.
                    siteGUID = (element != null) ? GUIDUtil.CreateSiteGUID(doc, element) : GUIDUtil.CreateProjectLevelGUID(doc, IFCProjectLevelGUIDType.Site);;

                    if (element != null)
                    {
                        siteName            = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
                        siteDescription     = NamingUtil.GetDescriptionOverride(element, null);
                        siteObjectType      = NamingUtil.GetObjectTypeOverride(element, null);
                        siteLongName        = NamingUtil.GetLongNameOverride(element, null);
                        siteLandTitleNumber = NamingUtil.GetOverrideStringValue(element, "IfcLandTitleNumber", null);
                    }
                    else
                    {
                        siteName = "Default";
                    }

                    siteName            = NamingUtil.GetOverrideStringValue(projectInfo, "SiteName", siteName);
                    siteDescription     = NamingUtil.GetOverrideStringValue(projectInfo, "SiteDescription", siteDescription);
                    siteObjectType      = NamingUtil.GetOverrideStringValue(projectInfo, "SiteObjectType", siteObjectType);
                    siteLongName        = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLongName", siteLongName);
                    siteLandTitleNumber = NamingUtil.GetOverrideStringValue(projectInfo, "SiteLandTitleNumber", siteLandTitleNumber);

                    if (element == null)
                    {
                        // don't bother exporting if we have nothing in the site whatsoever, and it is virtual.
                        if ((latitude.Count == 0 || longitude.Count == 0) &&
                            IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement) &&
                            string.IsNullOrWhiteSpace(siteLongName) &&
                            string.IsNullOrWhiteSpace(siteLandTitleNumber))
                        {
                            return;
                        }
                    }
                }

                COBieProjectInfo cobieProjectInfo = ExporterCacheManager.ExportOptionsCache.COBieProjectInfo;
                // Override Site information when it is a special COBie export
                if (ExporterCacheManager.ExportOptionsCache.ExportAs2x3COBIE24DesignDeliverable && cobieProjectInfo != null)
                {
                    siteName        = cobieProjectInfo.SiteLocation;
                    siteDescription = cobieProjectInfo.SiteDescription;
                }

                if (exportSite)
                {
                    IFCAnyHandle address = null;
                    if (Exporter.NeedToCreateAddressForSite(doc))
                    {
                        address = Exporter.CreateIFCAddress(file, doc, projectInfo);
                    }

                    siteHandle = IFCInstanceExporter.CreateSite(exporterIFC, element, siteGUID, ownerHistory, siteName, siteDescription, siteObjectType, localPlacement,
                                                                siteRepresentation, siteLongName, IFCElementComposition.Element, latitude, longitude, elevation, siteLandTitleNumber, address);
                    productWrapper.AddSite(mainSiteElement, siteHandle);
                    ExporterCacheManager.SiteHandle = siteHandle;
                }


                tr.Commit();
            }
        }