Example #1
0
        static IFCAnyHandle CreateLocalPlacementForConnector(ExporterIFC exporterIFC, Connector connector, IFCAnyHandle elementHandle,
                                                             IFCFlowDirection flowDir)
        {
            try
            {
                IFCFile file = exporterIFC.GetFile();

                IFCAnyHandle elementPlacement = IFCAnyHandleUtil.GetObjectPlacement(elementHandle);
                Transform    origTrf          = ExporterIFCUtils.GetUnscaledTransform(exporterIFC, elementPlacement);

                Transform connectorCoordinateSystem = connector.CoordinateSystem;
                if (flowDir == IFCFlowDirection.Sink)
                {
                    // Reverse the direction of the connector.
                    connectorCoordinateSystem.BasisX = -connectorCoordinateSystem.BasisX;
                    connectorCoordinateSystem.BasisZ = -connectorCoordinateSystem.BasisZ;
                }

                Transform relTransform = origTrf.Inverse.Multiply(connectorCoordinateSystem);
                XYZ       scaledOrigin = UnitUtil.ScaleLength(relTransform.Origin);

                IFCAnyHandle relLocalPlacement = ExporterUtil.CreateAxis2Placement3D(file,
                                                                                     scaledOrigin, relTransform.BasisZ, relTransform.BasisX);

                return(IFCInstanceExporter.CreateLocalPlacement(file, elementPlacement, relLocalPlacement));
            }
            catch
            {
            }
            return(null);
        }
Example #2
0
        /// <summary>
        /// Exports mullion.
        /// </summary>
        /// <param name="exporterIFC">
        /// The ExporterIFC object.
        /// </param>
        /// <param name="mullion">
        /// The mullion object.
        /// </param>
        /// <param name="geometryElement">
        /// The geometry element.
        /// </param>
        /// <param name="localPlacement">
        /// The local placement handle.
        /// </param>
        /// <param name="setter">
        /// The IFCPlacementSetter.
        /// </param>
        /// <param name="productWrapper">
        /// The ProductWrapper.
        /// </param>
        public static void Export(ExporterIFC exporterIFC, Mullion mullion, GeometryElement geometryElement,
                                  IFCAnyHandle localPlacement, IFCPlacementSetter setter, ProductWrapper productWrapper)
        {
            IFCFile file = exporterIFC.GetFile();

            using (IFCPlacementSetter mullionSetter = IFCPlacementSetter.Create(exporterIFC, mullion, null, null, ExporterUtil.GetBaseLevelIdForElement(mullion)))
            {
                using (IFCExtrusionCreationData extraParams = new IFCExtrusionCreationData())
                {
                    IFCAnyHandle mullionPlacement = mullionSetter.GetPlacement();

                    Transform relTrf     = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(localPlacement, mullionPlacement);
                    Transform inverseTrf = relTrf.Inverse;

                    IFCAnyHandle mullionRelativePlacement = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
                    IFCAnyHandle mullionLocalPlacement    = IFCInstanceExporter.CreateLocalPlacement(file, localPlacement, mullionRelativePlacement);

                    extraParams.SetLocalPlacement(mullionLocalPlacement);

                    ElementId catId = CategoryUtil.GetSafeCategoryId(mullion);

                    BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
                    IFCAnyHandle        repHnd = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, mullion, catId,
                                                                                                            geometryElement, bodyExporterOptions, null, extraParams, true);
                    if (IFCAnyHandleUtil.IsNullOrHasNoValue(repHnd))
                    {
                        extraParams.ClearOpenings();
                        return;
                    }

                    string       elemGUID       = GUIDUtil.CreateGUID(mullion);
                    IFCAnyHandle ownerHistory   = exporterIFC.GetOwnerHistoryHandle();
                    string       elemObjectType = NamingUtil.CreateIFCObjectName(exporterIFC, mullion);
                    string       name           = NamingUtil.GetNameOverride(mullion, elemObjectType);
                    string       description    = NamingUtil.GetDescriptionOverride(mullion, null);
                    string       objectType     = NamingUtil.GetObjectTypeOverride(mullion, elemObjectType);
                    string       elemTag        = NamingUtil.GetTagOverride(mullion, NamingUtil.CreateIFCElementId(mullion));

                    IFCAnyHandle mullionHnd = IFCInstanceExporter.CreateMember(file, elemGUID, ownerHistory, name, description, objectType,
                                                                               mullionLocalPlacement, repHnd, elemTag);
                    ExporterCacheManager.HandleToElementCache.Register(mullionHnd, mullion.Id);

                    productWrapper.AddElement(mullion, mullionHnd, mullionSetter, extraParams, false);

                    ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geometryElement, exporterIFC, mullion);
                    CategoryUtil.CreateMaterialAssociation(exporterIFC, mullionHnd, matId);
                }
            }
        }
        /// <summary>
        /// Update the local placements of the members of an assembly relative to the assembly.
        /// </summary>
        /// <param name="exporterIFC">The ExporerIFC.</param>
        /// <param name="assemblyPlacement">The assembly local placement handle.</param>
        /// <param name="elementPlacements">The member local placement handles.</param>
        public static void SetLocalPlacementsRelativeToAssembly(ExporterIFC exporterIFC, IFCAnyHandle assemblyPlacement, ICollection <IFCAnyHandle> elementPlacements)
        {
            foreach (IFCAnyHandle elementHandle in elementPlacements)
            {
                IFCAnyHandle elementPlacement = IFCAnyHandleUtil.GetObjectPlacement(elementHandle);

                Transform origTrf = ExporterIFCUtils.GetUnscaledTransform(exporterIFC, assemblyPlacement);
                if (!origTrf.IsIdentity)
                {
                    Transform relTrf     = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(assemblyPlacement, elementPlacement);
                    Transform inverseTrf = relTrf.Inverse;

                    IFCFile      file = exporterIFC.GetFile();
                    IFCAnyHandle relLocalPlacement = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);

                    // NOTE: caution that old IFCAXIS2PLACEMENT3D may be unused as the new one replace it.
                    // But we cannot delete it safely yet because we don't know if any handle is referencing it.
                    GeometryUtil.SetRelativePlacement(elementPlacement, relLocalPlacement);
                }
                GeometryUtil.SetPlacementRelTo(elementPlacement, assemblyPlacement);
            }
        }
        /// <summary>
        /// Exports an element as IFC covering.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="element">The element to be exported.</param>
        /// <param name="geometryElement">The geometry element.</param>
        /// <param name="productWrapper">The ProductWrapper.</param>
        public static void ExportCovering(ExporterIFC exporterIFC, Element element, GeometryElement geomElem, string ifcEnumType, ProductWrapper productWrapper)
        {
            bool exportParts = PartExporter.CanExportParts(element);

            if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
            {
                return;
            }

            // Check the intended IFC entity or type name is in the exclude list specified in the UI
            Common.Enums.IFCEntityType elementClassTypeEnum;
            if (Enum.TryParse <Common.Enums.IFCEntityType>("IfcCovering", out elementClassTypeEnum))
            {
                if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
                {
                    return;
                }
            }

            ElementType elemType = element.Document.GetElement(element.GetTypeId()) as ElementType;
            IFCFile     file     = exporterIFC.GetFile();

            using (IFCTransaction transaction = new IFCTransaction(file))
            {
                using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
                {
                    using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
                    {
                        ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);

                        IFCAnyHandle prodRep = null;
                        if (!exportParts)
                        {
                            ecData.SetLocalPlacement(setter.LocalPlacement);
                            ecData.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;

                            BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
                            prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, element,
                                                                                                 categoryId, geomElem, bodyExporterOptions, null, ecData, true);
                            if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
                            {
                                ecData.ClearOpenings();
                                return;
                            }
                        }

                        // We will use the category of the element to set a default value for the covering.
                        string defaultCoveringEnumType = null;

                        if (categoryId == new ElementId(BuiltInCategory.OST_Ceilings))
                        {
                            defaultCoveringEnumType = "CEILING";
                        }
                        else if (categoryId == new ElementId(BuiltInCategory.OST_Floors))
                        {
                            defaultCoveringEnumType = "FLOORING";
                        }
                        else if (categoryId == new ElementId(BuiltInCategory.OST_Roofs))
                        {
                            defaultCoveringEnumType = "ROOFING";
                        }

                        string instanceGUID        = GUIDUtil.CreateGUID(element);
                        string instanceName        = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
                        string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
                        string instanceObjectType  = NamingUtil.GetObjectTypeOverride(element, exporterIFC.GetFamilyName());
                        string instanceTag         = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
                        string coveringType        = IFCValidateEntry.GetValidIFCType(element, ifcEnumType, defaultCoveringEnumType);

                        IFCAnyHandle covering = IFCInstanceExporter.CreateCovering(file, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
                                                                                   instanceName, instanceDescription, instanceObjectType, setter.LocalPlacement, prodRep, instanceTag, coveringType);

                        if (exportParts)
                        {
                            PartExporter.ExportHostPart(exporterIFC, element, covering, productWrapper, setter, setter.LocalPlacement, null);
                        }

                        bool         containInSpace      = false;
                        IFCAnyHandle localPlacementToUse = setter.LocalPlacement;

                        // Ceiling containment in Space is generally required and not specific to any view
                        if (ExporterCacheManager.CeilingSpaceRelCache.ContainsKey(element.Id))
                        {
                            IList <ElementId> roomlist = ExporterCacheManager.CeilingSpaceRelCache[element.Id];

                            // Process Ceiling to be contained in a Space only when it is exactly bounding one Space
                            if (roomlist.Count == 1)
                            {
                                productWrapper.AddElement(element, covering, setter, null, false);

                                // Modify the Ceiling placement to be relative to the Space that it bounds
                                IFCAnyHandle roomPlacement     = IFCAnyHandleUtil.GetObjectPlacement(ExporterCacheManager.SpaceInfoCache.FindSpaceHandle(roomlist[0]));
                                Transform    relTrf            = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(roomPlacement, localPlacementToUse);
                                Transform    inverseTrf        = relTrf.Inverse;
                                IFCAnyHandle relLocalPlacement = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
                                IFCAnyHandleUtil.SetAttribute(localPlacementToUse, "PlacementRelTo", roomPlacement);
                                GeometryUtil.SetRelativePlacement(localPlacementToUse, relLocalPlacement);

                                ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomlist[0], covering);
                                containInSpace = true;
                            }
                        }

                        // if not contained in Space, assign it to default containment in Level
                        if (!containInSpace)
                        {
                            productWrapper.AddElement(element, covering, setter, null, true);
                        }

                        if (!exportParts)
                        {
                            Ceiling ceiling = element as Ceiling;
                            if (ceiling != null)
                            {
                                HostObjectExporter.ExportHostObjectMaterials(exporterIFC, ceiling, covering,
                                                                             geomElem, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, null);
                            }
                            else
                            {
                                ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geomElem, exporterIFC, element);
                                CategoryUtil.CreateMaterialAssociation(exporterIFC, covering, matId);
                            }
                        }

                        OpeningUtil.CreateOpeningsIfNecessary(covering, element, ecData, null,
                                                              exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
                    }
                }
                transaction.Commit();
            }
        }
        /// <summary>
        /// Exports a gutter element.
        /// </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>
        public static void ExportGutter(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
        {
            // Check the intended IFC entity or type name is in the exclude list specified in the UI
            Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcPipeSegmentType;
            if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
            {
                return;
            }

            IFCFile file = exporterIFC.GetFile();

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

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

                        ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);

                        BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
                        IFCAnyHandle        bodyRep             = BodyExporter.ExportBody(exporterIFC, element, categoryId, ElementId.InvalidElementId,
                                                                                          geometryElement, bodyExporterOptions, ecData).RepresentationHnd;
                        if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
                        {
                            if (ecData != null)
                            {
                                ecData.ClearOpenings();
                            }
                            return;
                        }
                        string originalTag = NamingUtil.CreateIFCElementId(element);

                        // In Revit, we don't have a corresponding type, so we create one for every gutter.
                        IFCAnyHandle        origin      = ExporterUtil.CreateAxis2Placement3D(file);
                        IFCAnyHandle        repMap3dHnd = IFCInstanceExporter.CreateRepresentationMap(file, origin, bodyRep);
                        List <IFCAnyHandle> repMapList  = new List <IFCAnyHandle>();
                        repMapList.Add(repMap3dHnd);
                        string elementTypeName = NamingUtil.CreateIFCObjectName(exporterIFC, element);

                        string       typeGuid = GUIDUtil.CreateSubElementGUID(element, (int)IFCHostedSweepSubElements.PipeSegmentType);
                        IFCAnyHandle style    = IFCInstanceExporter.CreatePipeSegmentType(file, null, null, repMapList, IFCPipeSegmentType.Gutter);
                        IFCAnyHandleUtil.OverrideNameAttribute(style, elementTypeName);
                        IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcPipeSegmentType, IFCPipeSegmentType.Gutter.ToString());

                        IFCAnyHandleUtil.SetAttribute(style, "Tag", originalTag);
                        ExporterUtil.SetGlobalId(style, typeGuid);
                        IFCAnyHandleUtil.SetAttribute(style, "ElementType", elementTypeName);

                        List <IFCAnyHandle> representationMaps = GeometryUtil.GetRepresentationMaps(style);
                        IFCAnyHandle        mappedItem         = ExporterUtil.CreateDefaultMappedItem(file, representationMaps[0]);

                        ISet <IFCAnyHandle> representations = new HashSet <IFCAnyHandle>();
                        representations.Add(mappedItem);

                        IFCAnyHandle bodyMappedItemRep = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC,
                                                                                                    element, categoryId, exporterIFC.Get3DContextHandle("Body"), representations);
                        if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyMappedItemRep))
                        {
                            return;
                        }

                        List <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
                        shapeReps.Add(bodyMappedItemRep);

                        IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
                        if (boundingBoxRep != null)
                        {
                            shapeReps.Add(boundingBoxRep);
                        }

                        IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
                        IFCAnyHandle localPlacementToUse;
                        ElementId    roomId = setter.UpdateRoomRelativeCoordinates(element, out localPlacementToUse);
                        if (roomId == ElementId.InvalidElementId)
                        {
                            localPlacementToUse = ecData.GetLocalPlacement();
                        }

                        string guid = GUIDUtil.CreateGUID(element);

                        IFCAnyHandle elemHnd = IFCInstanceExporter.CreateFlowSegment(exporterIFC, element, guid,
                                                                                     ExporterCacheManager.OwnerHistoryHandle, localPlacementToUse, prodRep);

                        bool containedInSpace = (roomId != ElementId.InvalidElementId);
                        productWrapper.AddElement(element, elemHnd, setter.LevelInfo, ecData, !containedInSpace, exportInfo);

                        if (containedInSpace)
                        {
                            ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomId, elemHnd);
                        }

                        // Associate segment with type.
                        ExporterCacheManager.TypeRelationsCache.Add(style, elemHnd);

                        OpeningUtil.CreateOpeningsIfNecessary(elemHnd, element, ecData, null,
                                                              exporterIFC, localPlacementToUse, setter, productWrapper);
                    }

                    tr.Commit();
                }
            }
        }
Example #6
0
        /// <summary>
        /// Exports the top stories of a multistory ramp.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="ramp">The ramp element.</param>
        /// <param name="numFlights">The number of flights for a multistory ramp.</param>
        /// <param name="ownerHistory">The owner history.</param>
        /// <param name="localPlacement">The local placement of the IfcRamp container.</param>
        /// <param name="containedRampLocalPlacement">The local placement of the IfcRamp containing the ramp geometry.</param>
        /// <param name="representation">The ramp geometry representation.</param>
        /// <param name="rampName">The ramp name.</param>
        /// <param name="rampObjectType">The ramp object type.</param>
        /// <param name="rampDescription">The ramp description.</param>
        /// <param name="elementTag">The ramp element tag.</param>
        /// <param name="rampType">The ramp type.</param>
        /// <param name="ecData">The extrusion creation data.</param>
        /// <param name="placementSetter">The placement setter.</param>
        /// <param name="productWrapper">The IFCProductWrapper.</param>
        public static void ExportMultistoryRamp(ExporterIFC exporterIFC, Element ramp, int numFlights,
                                                IFCAnyHandle ownerHistory, IFCAnyHandle localPlacement, IFCAnyHandle containedRampLocalPlacement, IFCAnyHandle representation,
                                                string rampName, string rampObjectType, string rampDescription, string elementTag, IFCRampType rampType,
                                                IFCExtrusionCreationData ecData, IFCPlacementSetter placementSetter, IFCProductWrapper productWrapper)
        {
            if (numFlights < 2)
            {
                return;
            }

            IFCFile file = exporterIFC.GetFile();

            IFCAnyHandle   relPlacement = GeometryUtil.GetRelativePlacementFromLocalPlacement(localPlacement);
            IFCAnyHandle   ptHnd        = IFCAnyHandleUtil.GetLocation(relPlacement);
            IList <double> origCoords   = IFCAnyHandleUtil.GetCoordinates(ptHnd);

            double heightNonScaled = GetRampHeight(exporterIFC, ramp);
            double scale           = exporterIFC.LinearScale;

            for (int ii = 1; ii < numFlights; ii++)
            {
                double       newOffsetScaled = 0.0;
                IFCAnyHandle newLevelHnd     = null;
                IFCLevelInfo currLevelInfo   =
                    placementSetter.GetOffsetLevelInfoAndHandle(heightNonScaled * ii, scale, out newLevelHnd, out newOffsetScaled);
                if (currLevelInfo == null)
                {
                    currLevelInfo = placementSetter.GetLevelInfo();
                }

                XYZ          orig = new XYZ(0.0, 0.0, newOffsetScaled);
                IFCAnyHandle relativePlacementHnd        = ExporterUtil.CreateAxis2Placement3D(file, orig);
                IFCAnyHandle containedLocalPlacementCopy = IFCInstanceExporter.CreateLocalPlacement(file, newLevelHnd, relativePlacementHnd);

                if (ptHnd.HasValue)
                {
                    IFCAnyHandle relPlacementCopy = GeometryUtil.GetRelativePlacementFromLocalPlacement(containedLocalPlacementCopy);
                    IFCAnyHandle newPt            = IFCAnyHandleUtil.GetLocation(relPlacement);

                    IList <double> newCoords = new List <double>();
                    newCoords.Add(origCoords[0]);
                    newCoords.Add(origCoords[1]);
                    newCoords.Add(origCoords[2]);
                    if (newPt.HasValue)
                    {
                        IList <double> addToCoords = IFCAnyHandleUtil.GetCoordinates(newPt);
                        newCoords[0] += addToCoords[0];
                        newCoords[1] += addToCoords[1];
                        newCoords[2]  = addToCoords[2];
                    }

                    IFCAnyHandle locPt = IFCInstanceExporter.CreateCartesianPoint(file, newCoords);
                    IFCAnyHandleUtil.SetAttribute(relPlacementCopy, "Location", locPt);
                }

                ElementId    catId = CategoryUtil.GetSafeCategoryId(ramp);
                IFCAnyHandle representationCopy = ExporterUtil.CopyProductDefinitionShape(exporterIFC, ramp, catId, representation);

                string localRampName = rampName + ":" + (ii + 1);

                List <IFCAnyHandle> components           = new List <IFCAnyHandle>();
                IFCAnyHandle        containedRampCopyHnd = IFCInstanceExporter.CreateRamp(file, ExporterIFCUtils.CreateGUID(), ownerHistory,
                                                                                          localRampName, rampDescription, rampObjectType, containedLocalPlacementCopy, representationCopy, elementTag, rampType);
                components.Add(containedRampCopyHnd);

                productWrapper.AddElement(containedRampCopyHnd, currLevelInfo, ecData, false);

                IFCAnyHandle rampLocalPlacementCopy = ExporterUtil.CopyLocalPlacement(file, containedRampLocalPlacement);

                IFCAnyHandle rampCopyHnd = IFCInstanceExporter.CreateRamp(file, ExporterIFCUtils.CreateGUID(), ownerHistory, localRampName,
                                                                          rampDescription, rampObjectType, rampLocalPlacementCopy, null, elementTag, rampType);

                productWrapper.AddElement(rampCopyHnd, currLevelInfo, ecData, LevelUtil.AssociateElementToLevel(ramp));

                StairRampContainerInfo stairRampInfo = new StairRampContainerInfo(rampCopyHnd, components, rampLocalPlacementCopy);
                ExporterCacheManager.StairRampContainerInfoCache.AppendStairRampContainerInfo(ramp.Id, stairRampInfo);
            }
        }
Example #7
0
        /// <summary>
        /// Exports a gutter element.
        /// </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>
        public static void ExportGutter(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement, ProductWrapper productWrapper)
        {
            IFCFile file = exporterIFC.GetFile();

            using (IFCTransaction tr = new IFCTransaction(file))
            {
                using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element))
                {
                    using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
                    {
                        ecData.SetLocalPlacement(setter.LocalPlacement);

                        ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);

                        BodyExporterOptions bodyExporterOptions = new BodyExporterOptions();
                        IFCAnyHandle        bodyRep             = BodyExporter.ExportBody(exporterIFC, element, categoryId, ElementId.InvalidElementId,
                                                                                          geometryElement, bodyExporterOptions, ecData).RepresentationHnd;
                        if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
                        {
                            if (ecData != null)
                            {
                                ecData.ClearOpenings();
                            }
                            return;
                        }

                        IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();
                        string       originalTag  = NamingUtil.CreateIFCElementId(element);

                        // In Revit, we don't have a corresponding type, so we create one for every gutter.
                        IFCAnyHandle        origin      = ExporterUtil.CreateAxis2Placement3D(file);
                        IFCAnyHandle        repMap3dHnd = IFCInstanceExporter.CreateRepresentationMap(file, origin, bodyRep);
                        List <IFCAnyHandle> repMapList  = new List <IFCAnyHandle>();
                        repMapList.Add(repMap3dHnd);
                        string elementTypeName = NamingUtil.CreateIFCObjectName(exporterIFC, element);

                        string       typeGuid = GUIDUtil.CreateSubElementGUID(element, (int)IFCHostedSweepSubElements.PipeSegmentType);
                        IFCAnyHandle style    = IFCInstanceExporter.CreatePipeSegmentType(file, typeGuid, ownerHistory,
                                                                                          elementTypeName, null, null, null, repMapList, originalTag,
                                                                                          elementTypeName, IFCPipeSegmentType.Gutter);

                        List <IFCAnyHandle> representationMaps = GeometryUtil.GetRepresentationMaps(style);
                        IFCAnyHandle        mappedItem         = ExporterUtil.CreateDefaultMappedItem(file, representationMaps[0]);

                        ISet <IFCAnyHandle> representations = new HashSet <IFCAnyHandle>();
                        representations.Add(mappedItem);

                        IFCAnyHandle bodyMappedItemRep = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC,
                                                                                                    element, categoryId, exporterIFC.Get3DContextHandle("Body"), representations);
                        if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyMappedItemRep))
                        {
                            return;
                        }

                        List <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
                        shapeReps.Add(bodyMappedItemRep);

                        IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geometryElement, Transform.Identity);
                        if (boundingBoxRep != null)
                        {
                            shapeReps.Add(boundingBoxRep);
                        }

                        IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
                        IFCAnyHandle localPlacementToUse;
                        ElementId    roomId = setter.UpdateRoomRelativeCoordinates(element, out localPlacementToUse);
                        if (roomId == ElementId.InvalidElementId)
                        {
                            localPlacementToUse = ecData.GetLocalPlacement();
                        }

                        string guid        = GUIDUtil.CreateGUID(element);
                        string name        = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
                        string description = NamingUtil.GetDescriptionOverride(element, null);
                        string objectType  = NamingUtil.GetObjectTypeOverride(element, elementTypeName);
                        string tag         = NamingUtil.GetTagOverride(element, originalTag);

                        IFCAnyHandle elemHnd = IFCInstanceExporter.CreateFlowSegment(file, guid,
                                                                                     ownerHistory, name, description, objectType, localPlacementToUse, prodRep, tag);

                        bool containedInSpace = (roomId != ElementId.InvalidElementId);
                        productWrapper.AddElement(element, elemHnd, setter.LevelInfo, ecData, !containedInSpace);

                        if (containedInSpace)
                        {
                            ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomId, elemHnd);
                        }

                        // Associate segment with type.
                        ExporterCacheManager.TypeRelationsCache.Add(style, elemHnd);

                        OpeningUtil.CreateOpeningsIfNecessary(elemHnd, element, ecData, null,
                                                              exporterIFC, localPlacementToUse, setter, productWrapper);
                    }

                    tr.Commit();
                }
            }
        }
Example #8
0
        /// <summary>
        /// Exports the top stories of a multistory ramp.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="ramp">The ramp element.</param>
        /// <param name="numFlights">The number of flights for a multistory ramp.</param>
        /// <param name="rampHnd">The stairs container handle.</param>
        /// <param name="components">The components handles.</param>
        /// <param name="ecData">The extrusion creation data.</param>
        /// <param name="componentECData">The extrusion creation data for the components.</param>
        /// <param name="placementSetter">The placement setter.</param>
        /// <param name="productWrapper">The ProductWrapper.</param>
        public static void ExportMultistoryRamp(ExporterIFC exporterIFC, Element ramp, int numFlights,
                                                IFCAnyHandle rampHnd, IList <IFCAnyHandle> components, IList <IFCExtrusionCreationData> componentECData,
                                                IFCPlacementSetter placementSetter, ProductWrapper productWrapper)
        {
            if (numFlights < 2)
            {
                return;
            }

            double scale = exporterIFC.LinearScale;

            double heightNonScaled = GetRampHeight(exporterIFC, ramp);

            if (heightNonScaled < MathUtil.Eps())
            {
                return;
            }

            if (IFCAnyHandleUtil.IsNullOrHasNoValue(rampHnd))
            {
                return;
            }

            IFCAnyHandle localPlacement = IFCAnyHandleUtil.GetObjectPlacement(rampHnd);

            if (IFCAnyHandleUtil.IsNullOrHasNoValue(localPlacement))
            {
                return;
            }

            IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();

            IFCFile file = exporterIFC.GetFile();

            IFCAnyHandle   relPlacement = GeometryUtil.GetRelativePlacementFromLocalPlacement(localPlacement);
            IFCAnyHandle   ptHnd        = IFCAnyHandleUtil.GetLocation(relPlacement);
            IList <double> origCoords   = IFCAnyHandleUtil.GetCoordinates(ptHnd);

            IList <IFCAnyHandle> rampLocalPlacementHnds = new List <IFCAnyHandle>();
            IList <IFCLevelInfo> levelInfos             = new List <IFCLevelInfo>();

            for (int ii = 0; ii < numFlights - 1; ii++)
            {
                double       newOffsetScaled = 0.0;
                IFCAnyHandle newLevelHnd     = null;
                levelInfos.Add(
                    placementSetter.GetOffsetLevelInfoAndHandle(heightNonScaled * (ii + 1), scale, out newLevelHnd, out newOffsetScaled));
                if (levelInfos[ii] == null)
                {
                    levelInfos[ii] = placementSetter.GetLevelInfo();
                }

                XYZ orig;
                if (ptHnd.HasValue)
                {
                    orig = new XYZ(origCoords[0], origCoords[1], newOffsetScaled);
                }
                else
                {
                    orig = new XYZ(0.0, 0.0, newOffsetScaled);
                }
                IFCAnyHandle relativePlacementHnd = ExporterUtil.CreateAxis2Placement3D(file, orig);
                rampLocalPlacementHnds.Add(IFCInstanceExporter.CreateLocalPlacement(file, newLevelHnd, relativePlacementHnd));
            }

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

            for (int ii = 0; ii < numFlights - 1; ii++)
            {
                newComponents.Add(new List <IFCAnyHandle>());
            }

            int       compIdx = 0;
            ElementId catId   = CategoryUtil.GetSafeCategoryId(ramp);

            foreach (IFCAnyHandle component in components)
            {
                string       componentName        = IFCAnyHandleUtil.GetStringAttribute(component, "Name");
                string       componentDescription = IFCAnyHandleUtil.GetStringAttribute(component, "Description");
                string       componentObjectType  = IFCAnyHandleUtil.GetStringAttribute(component, "ObjectType");
                string       componentElementTag  = IFCAnyHandleUtil.GetStringAttribute(component, "Tag");
                IFCAnyHandle componentProdRep     = IFCAnyHandleUtil.GetInstanceAttribute(component, "Representation");

                IList <string>       localComponentNames    = new List <string>();
                IList <IFCAnyHandle> componentPlacementHnds = new List <IFCAnyHandle>();

                IFCAnyHandle localLocalPlacement    = IFCAnyHandleUtil.GetObjectPlacement(component);
                IFCAnyHandle localRelativePlacement =
                    (localLocalPlacement == null) ? null : IFCAnyHandleUtil.GetInstanceAttribute(localLocalPlacement, "RelativePlacement");

                bool isSubRamp = component.IsSubTypeOf(IFCEntityType.IfcRamp.ToString());
                for (int ii = 0; ii < numFlights - 1; ii++)
                {
                    localComponentNames.Add((componentName == null) ? (ii + 2).ToString() : (componentName + ":" + (ii + 2)));
                    if (isSubRamp)
                    {
                        componentPlacementHnds.Add(ExporterUtil.CopyLocalPlacement(file, rampLocalPlacementHnds[ii]));
                    }
                    else
                    {
                        componentPlacementHnds.Add(IFCInstanceExporter.CreateLocalPlacement(file, rampLocalPlacementHnds[ii], localRelativePlacement));
                    }
                }

                IList <IFCAnyHandle> localComponentHnds = new List <IFCAnyHandle>();
                if (isSubRamp)
                {
                    string      componentType = IFCAnyHandleUtil.GetEnumerationAttribute(component, "ShapeType");
                    IFCRampType localRampType = GetIFCRampType(componentType);

                    for (int ii = 0; ii < numFlights - 1; ii++)
                    {
                        IFCAnyHandle representationCopy =
                            ExporterUtil.CopyProductDefinitionShape(exporterIFC, ramp, catId, componentProdRep);

                        localComponentHnds.Add(IFCInstanceExporter.CreateRamp(file, GUIDUtil.CreateGUID(), ownerHistory,
                                                                              localComponentNames[ii], componentDescription, componentObjectType, componentPlacementHnds[ii], representationCopy,
                                                                              componentElementTag, localRampType));
                    }
                }
                else if (IFCAnyHandleUtil.IsSubTypeOf(component, IFCEntityType.IfcRampFlight))
                {
                    for (int ii = 0; ii < numFlights - 1; ii++)
                    {
                        IFCAnyHandle representationCopy =
                            ExporterUtil.CopyProductDefinitionShape(exporterIFC, ramp, catId, componentProdRep);

                        localComponentHnds.Add(IFCInstanceExporter.CreateRampFlight(file, GUIDUtil.CreateGUID(), ownerHistory,
                                                                                    localComponentNames[ii], componentDescription, componentObjectType, componentPlacementHnds[ii], representationCopy,
                                                                                    componentElementTag));
                    }
                }
                else if (IFCAnyHandleUtil.IsSubTypeOf(component, IFCEntityType.IfcSlab))
                {
                    string      componentType    = IFCAnyHandleUtil.GetEnumerationAttribute(component, "PredefinedType");
                    IFCSlabType localLandingType = FloorExporter.GetIFCSlabType(componentType);

                    for (int ii = 0; ii < numFlights - 1; ii++)
                    {
                        IFCAnyHandle representationCopy =
                            ExporterUtil.CopyProductDefinitionShape(exporterIFC, ramp, catId, componentProdRep);

                        localComponentHnds.Add(IFCInstanceExporter.CreateSlab(file, GUIDUtil.CreateGUID(), ownerHistory,
                                                                              localComponentNames[ii], componentDescription, componentObjectType, componentPlacementHnds[ii], representationCopy,
                                                                              componentElementTag, localLandingType));
                    }
                }
                else if (IFCAnyHandleUtil.IsSubTypeOf(component, IFCEntityType.IfcMember))
                {
                    for (int ii = 0; ii < numFlights - 1; ii++)
                    {
                        IFCAnyHandle representationCopy =
                            ExporterUtil.CopyProductDefinitionShape(exporterIFC, ramp, catId, componentProdRep);

                        localComponentHnds.Add(IFCInstanceExporter.CreateMember(file, GUIDUtil.CreateGUID(), ownerHistory,
                                                                                localComponentNames[ii], componentDescription, componentObjectType, componentPlacementHnds[ii], representationCopy,
                                                                                componentElementTag));
                    }
                }

                for (int ii = 0; ii < numFlights - 1; ii++)
                {
                    if (localComponentHnds[ii] != null)
                    {
                        newComponents[ii].Add(localComponentHnds[ii]);
                        productWrapper.AddElement(null, localComponentHnds[ii], levelInfos[ii], componentECData[compIdx], false);
                    }
                }
                compIdx++;
            }

            // finally add a copy of the container.
            IList <IFCAnyHandle> rampCopyHnds = new List <IFCAnyHandle>();

            for (int ii = 0; ii < numFlights - 1; ii++)
            {
                string      rampName         = IFCAnyHandleUtil.GetStringAttribute(rampHnd, "Name");
                string      rampObjectType   = IFCAnyHandleUtil.GetStringAttribute(rampHnd, "ObjectType");
                string      rampDescription  = IFCAnyHandleUtil.GetStringAttribute(rampHnd, "Description");
                string      rampElementTag   = IFCAnyHandleUtil.GetStringAttribute(rampHnd, "Tag");
                string      rampTypeAsString = IFCAnyHandleUtil.GetEnumerationAttribute(rampHnd, "ShapeType");
                IFCRampType rampType         = GetIFCRampType(rampTypeAsString);

                string containerRampName = rampName + ":" + (ii + 2);
                rampCopyHnds.Add(IFCInstanceExporter.CreateRamp(file, GUIDUtil.CreateGUID(), ownerHistory,
                                                                containerRampName, rampDescription, rampObjectType, rampLocalPlacementHnds[ii], null, rampElementTag, rampType));

                productWrapper.AddElement(ramp, rampCopyHnds[ii], levelInfos[ii], null, true);
            }

            for (int ii = 0; ii < numFlights - 1; ii++)
            {
                StairRampContainerInfo stairRampInfo = new StairRampContainerInfo(rampCopyHnds[ii], newComponents[ii],
                                                                                  rampLocalPlacementHnds[ii]);
                ExporterCacheManager.StairRampContainerInfoCache.AppendStairRampContainerInfo(ramp.Id, stairRampInfo);
            }
        }
Example #9
0
        /// <summary>
        /// Exports an element as IFC covering.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="element">The element to be exported.</param>
        /// <param name="geometryElement">The geometry element.</param>
        /// <param name="productWrapper">The ProductWrapper.</param>
        public static void ExportCovering(ExporterIFC exporterIFC, Element element, ref GeometryElement geomElem, string ifcEnumType, ProductWrapper productWrapper)
        {
            // Check the intended IFC entity or type name is in the exclude list specified in the UI
            Common.Enums.IFCEntityType elementClassTypeEnum = Common.Enums.IFCEntityType.IfcCovering;
            if (ExporterCacheManager.ExportOptionsCache.IsElementInExcludeList(elementClassTypeEnum))
            {
                return;
            }

            ElementType          elemType     = element.Document.GetElement(element.GetTypeId()) as ElementType;
            IFCFile              file         = exporterIFC.GetFile();
            MaterialLayerSetInfo layersetInfo = new MaterialLayerSetInfo(exporterIFC, element, productWrapper);

            using (IFCTransaction transaction = new IFCTransaction(file))
            {
                // For IFC4RV export, Element will be split into its parts(temporarily) in order to export the wall by its parts
                // If Parts are created by code and not by user then their name should be equal to Material name.
                bool setMaterialNameToPartName         = ExporterUtil.CreateParts(element, layersetInfo.MaterialIds.Count, ref geomElem);
                ExporterUtil.ExportPartAs exportPartAs = ExporterUtil.CanExportByComponentsOrParts(element);
                bool exportByComponents = exportPartAs == ExporterUtil.ExportPartAs.ShapeAspect;
                bool exportParts        = exportPartAs == ExporterUtil.ExportPartAs.Part;

                if (exportParts && !PartExporter.CanExportElementInPartExport(element, element.LevelId, false))
                {
                    return;
                }

                // Check for containment override
                IFCAnyHandle         overrideContainerHnd = null;
                ElementId            overrideContainerId  = ParameterUtil.OverrideContainmentParameter(exporterIFC, element, out overrideContainerHnd);
                IList <IFCAnyHandle> representations      = new List <IFCAnyHandle>();

                using (PlacementSetter setter = PlacementSetter.Create(exporterIFC, element, null, null, overrideContainerId, overrideContainerHnd))
                {
                    using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
                    {
                        ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);

                        IFCAnyHandle prodRep = null;
                        if (!exportParts)
                        {
                            ecData.SetLocalPlacement(setter.LocalPlacement);
                            ecData.PossibleExtrusionAxes = IFCExtrusionAxes.TryZ;

                            BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
                            if (exportByComponents)
                            {
                                prodRep = RepresentationUtil.CreateProductDefinitionShapeWithoutBodyRep(exporterIFC, element, categoryId, geomElem, representations);
                            }
                            else
                            {
                                prodRep = RepresentationUtil.CreateAppropriateProductDefinitionShape(exporterIFC, element,
                                                                                                     categoryId, geomElem, bodyExporterOptions, null, ecData, true);
                            }

                            if (IFCAnyHandleUtil.IsNullOrHasNoValue(prodRep))
                            {
                                ecData.ClearOpenings();
                                return;
                            }
                        }

                        // We will use the category of the element to set a default value for the covering.
                        string defaultCoveringEnumType = null;

                        if (categoryId == new ElementId(BuiltInCategory.OST_Ceilings))
                        {
                            defaultCoveringEnumType = "CEILING";
                        }
                        else if (categoryId == new ElementId(BuiltInCategory.OST_Floors))
                        {
                            defaultCoveringEnumType = "FLOORING";
                        }
                        else if (categoryId == new ElementId(BuiltInCategory.OST_Roofs))
                        {
                            defaultCoveringEnumType = "ROOFING";
                        }

                        string instanceGUID = GUIDUtil.CreateGUID(element);
                        string coveringType = IFCValidateEntry.GetValidIFCPredefinedTypeType(/*element,*/ ifcEnumType, defaultCoveringEnumType, "IfcCoveringType");

                        IFCAnyHandle covering = IFCInstanceExporter.CreateCovering(exporterIFC, element, instanceGUID, ExporterCacheManager.OwnerHistoryHandle,
                                                                                   setter.LocalPlacement, prodRep, coveringType);

                        if (exportParts)
                        {
                            PartExporter.ExportHostPart(exporterIFC, element, covering, productWrapper, setter, setter.LocalPlacement, null, setMaterialNameToPartName);
                        }
                        else if (exportByComponents)
                        {
                            IFCAnyHandle hostShapeRepFromParts = PartExporter.ExportHostPartAsShapeAspects(exporterIFC, element, prodRep,
                                                                                                           productWrapper, setter, setter.LocalPlacement, ElementId.InvalidElementId, layersetInfo, ecData);
                        }

                        ExporterUtil.AddIntoComplexPropertyCache(covering, layersetInfo);

                        IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcCovering, IFCEntityType.IfcCoveringType, coveringType);
                        IFCAnyHandle      typeHnd    = ExporterUtil.CreateGenericTypeFromElement(element, exportInfo, file, ExporterCacheManager.OwnerHistoryHandle, coveringType, productWrapper);
                        ExporterCacheManager.TypeRelationsCache.Add(typeHnd, covering);

                        bool         containInSpace      = false;
                        IFCAnyHandle localPlacementToUse = setter.LocalPlacement;

                        // Ceiling containment in Space is generally required and not specific to any view
                        if (ExporterCacheManager.CeilingSpaceRelCache.ContainsKey(element.Id))
                        {
                            IList <ElementId> roomlist = ExporterCacheManager.CeilingSpaceRelCache[element.Id];

                            // Process Ceiling to be contained in a Space only when it is exactly bounding one Space
                            if (roomlist.Count == 1)
                            {
                                productWrapper.AddElement(element, covering, setter, ecData, false, exportInfo);

                                // Modify the Ceiling placement to be relative to the Space that it bounds
                                IFCAnyHandle roomPlacement     = IFCAnyHandleUtil.GetObjectPlacement(ExporterCacheManager.SpaceInfoCache.FindSpaceHandle(roomlist[0]));
                                Transform    relTrf            = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(roomPlacement, localPlacementToUse);
                                Transform    inverseTrf        = relTrf.Inverse;
                                IFCAnyHandle relLocalPlacement = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
                                IFCAnyHandleUtil.SetAttribute(localPlacementToUse, "PlacementRelTo", roomPlacement);
                                GeometryUtil.SetRelativePlacement(localPlacementToUse, relLocalPlacement);

                                ExporterCacheManager.SpaceInfoCache.RelateToSpace(roomlist[0], covering);
                                containInSpace = true;
                            }
                        }

                        // if not contained in Space, assign it to default containment in Level
                        if (!containInSpace)
                        {
                            productWrapper.AddElement(element, covering, setter, ecData, true, exportInfo);
                        }

                        if (!exportParts)
                        {
                            Ceiling ceiling = element as Ceiling;
                            if (ceiling != null)
                            {
                                HostObjectExporter.ExportHostObjectMaterials(exporterIFC, ceiling, covering,
                                                                             geomElem, productWrapper, ElementId.InvalidElementId, Toolkit.IFCLayerSetDirection.Axis3, null, null);
                            }
                            else
                            {
                                ElementId matId = BodyExporter.GetBestMaterialIdFromGeometryOrParameter(geomElem, element);
                                CategoryUtil.CreateMaterialAssociation(exporterIFC, covering, matId);
                            }
                        }

                        OpeningUtil.CreateOpeningsIfNecessary(covering, element, ecData, null,
                                                              exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);
                    }
                }
                transaction.Commit();
            }
        }
Example #10
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();
            }
        }
        /// <summary>
        /// Exports an element as IFC railing.
        /// </summary>
        /// <param name="exporterIFC">
        /// The ExporterIFC object.
        /// </param>
        /// <param name="element">
        /// The element to be exported.
        /// </param>
        /// <param name="geometryElement">
        /// The geometry element.
        /// </param>
        /// <param name="productWrapper">
        /// The ProductWrapper.
        /// </param>
        public static void ExportRailing(ExporterIFC exporterIFC, Element element, GeometryElement geomElem, string ifcEnumType, ProductWrapper productWrapper)
        {
            ElementType elemType    = element.Document.GetElement(element.GetTypeId()) as ElementType;
            IFCFile     file        = exporterIFC.GetFile();
            Options     geomOptions = GeometryUtil.GetIFCExportGeometryOptions();

            using (IFCTransaction transaction = new IFCTransaction(file))
            {
                using (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, element, null, null, ExporterUtil.GetBaseLevelIdForElement(element)))
                {
                    using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
                    {
                        IFCAnyHandle           localPlacement = setter.GetPlacement();
                        StairRampContainerInfo stairRampInfo  = null;
                        ElementId hostId = GetStairOrRampHostId(exporterIFC, element as Railing);
                        if (hostId != ElementId.InvalidElementId)
                        {
                            stairRampInfo = ExporterCacheManager.StairRampContainerInfoCache.GetStairRampContainerInfo(hostId);
                            IFCAnyHandle stairRampLocalPlacement = stairRampInfo.LocalPlacements[0];
                            Transform    relTrf     = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(stairRampLocalPlacement, localPlacement);
                            Transform    inverseTrf = relTrf.Inverse;

                            IFCAnyHandle relativePlacement     = ExporterUtil.CreateAxis2Placement3D(file, inverseTrf.Origin, inverseTrf.BasisZ, inverseTrf.BasisX);
                            IFCAnyHandle railingLocalPlacement = ExporterUtil.CreateLocalPlacement(file, stairRampLocalPlacement, relativePlacement);
                            localPlacement = railingLocalPlacement;
                        }
                        ecData.SetLocalPlacement(localPlacement);

                        SolidMeshGeometryInfo solidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(geomElem);
                        IList <Solid>         solids        = solidMeshInfo.GetSolids();
                        IList <Mesh>          meshes        = solidMeshInfo.GetMeshes();

                        Railing           railingElem   = element as Railing;
                        IList <ElementId> subElementIds = CollectSubElements(railingElem);

                        foreach (ElementId subElementId in subElementIds)
                        {
                            Element subElement = railingElem.Document.GetElement(subElementId);
                            if (subElement != null)
                            {
                                GeometryElement subElementGeom = GeometryUtil.GetOneLevelGeometryElement(subElement.get_Geometry(geomOptions));

                                SolidMeshGeometryInfo subElementSolidMeshInfo = GeometryUtil.GetSplitSolidMeshGeometry(subElementGeom);
                                IList <Solid>         subElementSolids        = subElementSolidMeshInfo.GetSolids();
                                IList <Mesh>          subElementMeshes        = subElementSolidMeshInfo.GetMeshes();
                                foreach (Solid subElementSolid in subElementSolids)
                                {
                                    solids.Add(subElementSolid);
                                }
                                foreach (Mesh subElementMesh in subElementMeshes)
                                {
                                    meshes.Add(subElementMesh);
                                }
                            }
                        }

                        ElementId           catId               = CategoryUtil.GetSafeCategoryId(element);
                        BodyData            bodyData            = null;
                        BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true);
                        bodyExporterOptions.TessellationLevel = BodyExporter.GetTessellationLevel();
                        //bodyExporterOptions.UseGroupsIfPossible = true;
                        //bodyExporterOptions.UseMappedGeometriesIfPossible = true;

                        if (solids.Count > 0 || meshes.Count > 0)
                        {
                            bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId, solids, meshes, bodyExporterOptions, ecData);
                        }
                        else
                        {
                            IList <GeometryObject> geomlist = new List <GeometryObject>();
                            geomlist.Add(geomElem);
                            bodyData = BodyExporter.ExportBody(exporterIFC, element, catId, ElementId.InvalidElementId, geomlist, bodyExporterOptions, ecData);
                        }

                        IFCAnyHandle bodyRep = bodyData.RepresentationHnd;
                        if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
                        {
                            if (ecData != null)
                            {
                                ecData.ClearOpenings();
                            }
                            return;
                        }

                        IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
                        representations.Add(bodyRep);

                        IList <GeometryObject> geomObjects = new List <GeometryObject>();
                        foreach (Solid solid in solids)
                        {
                            geomObjects.Add(solid);
                        }
                        foreach (Mesh mesh in meshes)
                        {
                            geomObjects.Add(mesh);
                        }

                        Transform    boundingBoxTrf = (bodyData.OffsetTransform != null) ? bodyData.OffsetTransform.Inverse : Transform.Identity;
                        IFCAnyHandle boundingBoxRep = BoundingBoxExporter.ExportBoundingBox(exporterIFC, geomObjects, boundingBoxTrf);
                        if (boundingBoxRep != null)
                        {
                            representations.Add(boundingBoxRep);
                        }

                        IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, representations);

                        IFCAnyHandle ownerHistory = exporterIFC.GetOwnerHistoryHandle();

                        string instanceGUID                = GUIDUtil.CreateGUID(element);
                        string instanceName                = NamingUtil.GetNameOverride(element, NamingUtil.GetIFCName(element));
                        string instanceDescription         = NamingUtil.GetDescriptionOverride(element, null);
                        string instanceObjectType          = NamingUtil.GetObjectTypeOverride(element, exporterIFC.GetFamilyName());
                        string instanceTag                 = NamingUtil.GetTagOverride(element, NamingUtil.CreateIFCElementId(element));
                        Toolkit.IFCRailingType railingType = GetIFCRailingType(element, ifcEnumType);

                        IFCAnyHandle railing = IFCInstanceExporter.CreateRailing(file, instanceGUID, ownerHistory,
                                                                                 instanceName, instanceDescription, instanceObjectType, ecData.GetLocalPlacement(),
                                                                                 prodRep, instanceTag, railingType);

                        bool associateToLevel = (hostId == ElementId.InvalidElementId);

                        productWrapper.AddElement(element, railing, setter, ecData, associateToLevel);
                        OpeningUtil.CreateOpeningsIfNecessary(railing, element, ecData, bodyData.OffsetTransform,
                                                              exporterIFC, ecData.GetLocalPlacement(), setter, productWrapper);

                        CategoryUtil.CreateMaterialAssociations(exporterIFC, railing, bodyData.MaterialIds);

                        // Create multi-story duplicates of this railing.
                        if (stairRampInfo != null)
                        {
                            stairRampInfo.AddComponent(0, railing);

                            List <IFCAnyHandle> stairHandles = stairRampInfo.StairOrRampHandles;
                            for (int ii = 1; ii < stairHandles.Count; ii++)
                            {
                                IFCAnyHandle railingLocalPlacement = stairRampInfo.LocalPlacements[ii];
                                if (!IFCAnyHandleUtil.IsNullOrHasNoValue(railingLocalPlacement))
                                {
                                    IFCAnyHandle railingHndCopy = CopyRailingHandle(exporterIFC, element, catId, railingLocalPlacement, railing);
                                    stairRampInfo.AddComponent(ii, railingHndCopy);
                                    productWrapper.AddElement(element, railingHndCopy, (IFCLevelInfo)null, ecData, false);
                                    CategoryUtil.CreateMaterialAssociations(exporterIFC, railingHndCopy, bodyData.MaterialIds);
                                }
                            }

                            ExporterCacheManager.StairRampContainerInfoCache.AddStairRampContainerInfo(hostId, stairRampInfo);
                        }
                    }
                    transaction.Commit();
                }
            }
        }
Example #12
0
        /// <summary>
        /// Base implementation to export IFC site object.
        /// </summary>
        /// <param name="exporterIFC">
        /// The ExporterIFC object.
        /// </param>
        /// <param name="document">
        /// The Revit document.
        /// </param>
        /// <param name="element">
        /// The element.
        /// </param>
        /// <param name="geometryElement">
        /// The geometry element.
        /// </param>
        /// <param name="productWrapper">
        /// The IFCProductWrapper.
        /// </param>
        private static void ExportSiteBase(ExporterIFC exporterIFC, Document document, Element element, GeometryElement geometryElement, IFCProductWrapper productWrapper)
        {
            IFCAnyHandle siteHandle = exporterIFC.GetSite();

            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;
                    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, true, ref bodyRep, ref boundaryRep);
                            appendedToSite     = true;
                        }
                    }

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

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

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


                    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 (!exporterIFC.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 (!exporterIFC.ExportAs2x2)
                    {
                        longitude.Add(longFracSec);
                    }

                    Transform siteSharedCoordinatesTrf = projLocation.GetTransform().Inverse;
                    if (!siteSharedCoordinatesTrf.IsIdentity)
                    {
                        XYZ orig = siteSharedCoordinatesTrf.Origin;
                        orig = orig.Multiply(exporterIFC.LinearScale);
                        relativePlacement = ExporterUtil.CreateAxis2Placement3D(file, orig, siteSharedCoordinatesTrf.BasisZ, siteSharedCoordinatesTrf.BasisX);
                    }
                }

                // Get elevation for site.
                elevation = -LevelUtil.GetReferenceHeightForRelativeElevation(doc) * exporterIFC.LinearScale;

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

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

                if (element != null)
                {
                    if (IFCAnyHandleUtil.IsNullOrHasNoValue(siteHandle))
                    {
                        string instanceGUID        = ExporterIFCUtils.CreateGUID(element);
                        string origInstanceName    = exporterIFC.GetName();
                        string instanceName        = NamingUtil.GetNameOverride(element, origInstanceName);
                        string instanceDescription = NamingUtil.GetDescriptionOverride(element, null);
                        string instanceObjectType  = NamingUtil.GetObjectTypeOverride(element, objectType);
                        string instanceElemId      = NamingUtil.CreateIFCElementId(element);

                        siteHandle = IFCInstanceExporter.CreateSite(file, instanceGUID, ownerHistory, instanceName, instanceDescription, instanceObjectType, localPlacement,
                                                                    siteRepresentation, null, Toolkit.IFCElementComposition.Element, latitude, longitude, elevation, null, null);
                    }
                }
                else
                {
                    // don't bother if we have nothing in the site whatsoever.
                    if ((latitude.Count == 0 || longitude.Count == 0) && IFCAnyHandleUtil.IsNullOrHasNoValue(relativePlacement))
                    {
                        return;
                    }

                    string defaultSiteName = "Default";
                    siteHandle = IFCInstanceExporter.CreateSite(file, ExporterIFCUtils.CreateProjectLevelGUID(doc, IFCProjectLevelGUIDType.Site), ownerHistory, defaultSiteName, null, objectType, localPlacement,
                                                                null, null, Toolkit.IFCElementComposition.Element, latitude, longitude, elevation, null, null);
                }

                productWrapper.AddSite(siteHandle);
                exporterIFC.SetSite(siteHandle);

                tr.Commit();
            }
        }
Example #13
0
        /// <summary>
        /// Exports a gutter element.
        /// </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 IFCProductWrapper.</param>
        public static void ExportGutter(ExporterIFC exporterIFC, Element element, GeometryElement geometryElement, IFCProductWrapper productWrapper)
        {
            IFCFile file = exporterIFC.GetFile();

            using (IFCTransaction tr = new IFCTransaction(file))
            {
                using (IFCPlacementSetter setter = IFCPlacementSetter.Create(exporterIFC, element))
                {
                    using (IFCExtrusionCreationData ecData = new IFCExtrusionCreationData())
                    {
                        ecData.SetLocalPlacement(setter.GetPlacement());

                        ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);

                        BodyExporterOptions bodyExporterOptions = new BodyExporterOptions();
                        IFCAnyHandle        bodyRep             = BodyExporter.ExportBody(element.Document.Application, exporterIFC, element, categoryId,
                                                                                          geometryElement, bodyExporterOptions, ecData).RepresentationHnd;
                        if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyRep))
                        {
                            if (ecData != null)
                            {
                                ecData.ClearOpenings();
                            }
                            return;
                        }

                        IFCAnyHandle        origin      = ExporterUtil.CreateAxis2Placement3D(file);
                        IFCAnyHandle        repMap3dHnd = IFCInstanceExporter.CreateRepresentationMap(file, origin, bodyRep);
                        List <IFCAnyHandle> repMapList  = new List <IFCAnyHandle>();
                        repMapList.Add(repMap3dHnd);
                        string       elementTypeName = NamingUtil.CreateIFCObjectName(exporterIFC, element);
                        IFCAnyHandle style           = IFCInstanceExporter.CreatePipeSegmentType(file, ExporterIFCUtils.CreateGUID(element), exporterIFC.GetOwnerHistoryHandle(),
                                                                                                 elementTypeName, null, null, null, repMapList, NamingUtil.CreateIFCElementId(element), elementTypeName, IFCPipeSegmentType.Gutter);


                        List <IFCAnyHandle> representationMaps = GeometryUtil.GetRepresentationMaps(style);
                        IFCAnyHandle        mappedItem         = ExporterUtil.CreateDefaultMappedItem(file, representationMaps[0]);

                        IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
                        representations.Add(mappedItem);

                        IFCAnyHandle bodyMappedItemRep = RepresentationUtil.CreateBodyMappedItemRep(exporterIFC,
                                                                                                    element, categoryId, exporterIFC.Get3DContextHandle("Body"), representations);
                        if (IFCAnyHandleUtil.IsNullOrHasNoValue(bodyMappedItemRep))
                        {
                            return;
                        }

                        List <IFCAnyHandle> shapeReps = new List <IFCAnyHandle>();
                        shapeReps.Add(bodyMappedItemRep);

                        IFCAnyHandle prodRep = IFCInstanceExporter.CreateProductDefinitionShape(file, null, null, shapeReps);
                        IFCAnyHandle localPlacementToUse;
                        ElementId    roomId = setter.UpdateRoomRelativeCoordinates(element, out localPlacementToUse);
                        if (roomId == ElementId.InvalidElementId)
                        {
                            localPlacementToUse = ecData.GetLocalPlacement();
                        }
                        string       name        = NamingUtil.GetNameOverride(element, NamingUtil.CreateIFCName(exporterIFC, -1));
                        string       description = NamingUtil.GetDescriptionOverride(element, null);
                        string       objectType  = NamingUtil.GetObjectTypeOverride(element, elementTypeName);
                        IFCAnyHandle elemHnd     = IFCInstanceExporter.CreateFlowSegment(file, ExporterIFCUtils.CreateGUID(element),
                                                                                         exporterIFC.GetOwnerHistoryHandle(), name, description, objectType, localPlacementToUse, prodRep,
                                                                                         NamingUtil.CreateIFCElementId(element));

                        if (roomId == ElementId.InvalidElementId)
                        {
                            productWrapper.AddElement(elemHnd, setter.GetLevelInfo(), ecData, true);
                        }
                        else
                        {
                            exporterIFC.RelateSpatialElement(roomId, elemHnd);
                            productWrapper.AddElement(elemHnd, setter.GetLevelInfo(), ecData, false);
                        }

                        OpeningUtil.CreateOpeningsIfNecessary(elemHnd, element, ecData, exporterIFC,
                                                              localPlacementToUse, setter, productWrapper);
                    }

                    tr.Commit();
                }
            }
        }