Esempio n. 1
0
        /// <summary>
        /// Gets material handle from material id or creates one if there is none.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="materialId">The material id.</param>
        /// <returns>The handle.</returns>
        public static IFCAnyHandle GetOrCreateMaterialHandle(ExporterIFC exporterIFC, ElementId materialId)
        {
            Document     document           = ExporterCacheManager.Document;
            IFCAnyHandle materialNameHandle = ExporterCacheManager.MaterialHandleCache.Find(materialId);

            if (IFCAnyHandleUtil.IsNullOrHasNoValue(materialNameHandle))
            {
                string materialName = " <Unnamed>";
                string description  = null;
                string category     = null;
                if (materialId != ElementId.InvalidElementId)
                {
                    Material material = document.GetElement(materialId) as Material;
                    if (material != null)
                    {
                        materialName = NamingUtil.GetNameOverride(material, material.Name);

                        if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
                        {
                            category = NamingUtil.GetOverrideStringValue(material, "IfcCategory",
                                                                         NamingUtil.GetOverrideStringValue(material, "Category", material.MaterialCategory));
                            description = NamingUtil.GetOverrideStringValue(material, "IfcDescription", null);
                        }
                    }
                }

                materialNameHandle = IFCInstanceExporter.CreateMaterial(exporterIFC.GetFile(), materialName, description: description, category: category);

                ExporterCacheManager.MaterialHandleCache.Register(materialId, materialNameHandle);

                // associate Material with SurfaceStyle if necessary.
                IFCFile file = exporterIFC.GetFile();
                if (materialId != ElementId.InvalidElementId && !ExporterCacheManager.ExportOptionsCache.ExportAs2x2 && materialNameHandle.HasValue)
                {
                    HashSet <IFCAnyHandle> matRepHandles = IFCAnyHandleUtil.GetHasRepresentation(materialNameHandle);
                    if (matRepHandles.Count == 0)
                    {
                        Material matElem = document.GetElement(materialId) as Material;

                        // TODO_DOUBLE_PATTERN - deal with background pattern
                        ElementId fillPatternId       = (matElem != null) ? matElem.CutForegroundPatternId : ElementId.InvalidElementId;
                        Autodesk.Revit.DB.Color color = (matElem != null) ? GetSafeColor(matElem.CutForegroundPatternColor) : new Color(0, 0, 0);

                        double planScale = 100.0;

                        HashSet <IFCAnyHandle> styles = new HashSet <IFCAnyHandle>();

                        bool hasFill = false;

                        IFCAnyHandle styledRepItem = null;
                        IFCAnyHandle matStyleHnd   = CategoryUtil.GetOrCreateMaterialStyle(document, exporterIFC, materialId);
                        if (!IFCAnyHandleUtil.IsNullOrHasNoValue(matStyleHnd) && !ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
                        {
                            styles.Add(matStyleHnd);

                            bool supportCutStyles = !ExporterCacheManager.ExportOptionsCache.ExportAsCoordinationView2;
                            if (fillPatternId != ElementId.InvalidElementId && supportCutStyles)
                            {
                                IFCAnyHandle cutStyleHnd = exporterIFC.GetOrCreateFillPattern(fillPatternId, color, planScale);
                                if (cutStyleHnd.HasValue)
                                {
                                    styles.Add(cutStyleHnd);
                                    hasFill = true;
                                }
                            }

                            IFCAnyHandle styledItemHnd;
                            if (ExporterCacheManager.ExportOptionsCache.ExportAsOlderThanIFC4)
                            {
                                IFCAnyHandle presStyleHnd = IFCInstanceExporter.CreatePresentationStyleAssignment(file, styles);

                                HashSet <IFCAnyHandle> presStyleSet = new HashSet <IFCAnyHandle>();
                                presStyleSet.Add(presStyleHnd);

                                styledItemHnd = IFCInstanceExporter.CreateStyledItem(file, styledRepItem, presStyleSet, null);
                            }
                            else
                            {
                                styledItemHnd = IFCInstanceExporter.CreateStyledItem(file, styledRepItem, styles, null);
                            }

                            IFCAnyHandle contextOfItems = exporterIFC.Get3DContextHandle("");

                            string repId   = "Style";
                            string repType = (hasFill) ? "Material and Cut Pattern" : "Material";
                            HashSet <IFCAnyHandle> repItems = new HashSet <IFCAnyHandle>();

                            repItems.Add(styledItemHnd);

                            IFCAnyHandle styleRepHnd = IFCInstanceExporter.CreateStyledRepresentation(file, contextOfItems, repId, repType, repItems);

                            List <IFCAnyHandle> repList = new List <IFCAnyHandle>();
                            repList.Add(styleRepHnd);

                            IFCAnyHandle matDefRepHnd = IFCInstanceExporter.CreateMaterialDefinitionRepresentation(file, null, null, repList, materialNameHandle);
                        }
                    }
                }
            }
            return(materialNameHandle);
        }
        private void GenerateIFCObjectsIfNeeded()
        {
            if (m_needToGenerateIFCObjects)
            {
                m_needToGenerateIFCObjects = false;
            }
            else
            {
                return;
            }

            IFCAnyHandle materialLayerSet = null;

            if (m_ProductWrapper != null && !m_ProductWrapper.ToNative().IsValidObject)
            {
                m_ProductWrapper = null;
            }

            m_ProductWrapper?.ClearFinishMaterials();

            // We can't create IfcMaterialLayers without creating an IfcMaterialLayerSet.  So we will simply collate here.
            IList <IFCAnyHandle> materialHnds = new List <IFCAnyHandle>();
            IList <int>          widthIndices = new List <int>();
            double thickestLayer = 0.0;

            for (int ii = 0; ii < MaterialIds.Count; ++ii)
            {
                // Require positive width for IFC2x3 and before, and non-negative width for IFC4.
                if (MaterialIds[ii].m_matWidth < -MathUtil.Eps())
                {
                    continue;
                }

                bool almostZeroWidth = MathUtil.IsAlmostZero(MaterialIds[ii].m_matWidth);
                if (!ExporterCacheManager.ExportOptionsCache.ExportAs4 && almostZeroWidth)
                {
                    continue;
                }

                if (almostZeroWidth)
                {
                    MaterialIds[ii].m_matWidth = 0.0;
                }

                IFCAnyHandle materialHnd = CategoryUtil.GetOrCreateMaterialHandle(m_ExporterIFC, MaterialIds[ii].m_baseMatId);
                if (m_PrimaryMaterialHandle == null || (MaterialIds[ii].m_matWidth > thickestLayer))
                {
                    m_PrimaryMaterialHandle = materialHnd;
                    thickestLayer           = MaterialIds[ii].m_matWidth;
                }

                widthIndices.Add(ii);
                materialHnds.Add(materialHnd);

                if ((m_ProductWrapper != null) && (MaterialIds[ii].m_function == MaterialFunctionAssignment.Finish1 || MaterialIds[ii].m_function == MaterialFunctionAssignment.Finish2))
                {
                    m_ProductWrapper.AddFinishMaterial(materialHnd);
                }
            }

            int numLayersToCreate = widthIndices.Count;

            if (numLayersToCreate == 0)
            {
                m_MaterialLayerSetHandle = materialLayerSet;
                return;
            }

            // If it is a single material, check single material override (only IfcMaterial without IfcMaterialLayerSet with only 1 member)
            if (numLayersToCreate == 1 && ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
            {
                m_MaterialLayerSetHandle = ExporterUtil.GetSingleMaterial(m_ExporterIFC, m_Element,
                                                                          MaterialIds[0].m_baseMatId) ?? materialHnds[0];
                return;
            }

            IFCFile  file     = m_ExporterIFC.GetFile();
            Document document = ExporterCacheManager.Document;

            IList <IFCAnyHandle> layers = new List <IFCAnyHandle>(numLayersToCreate);
            IList <Tuple <string, IFCAnyHandle> > layerWidthQuantities = new List <Tuple <string, IFCAnyHandle> >();
            HashSet <string> layerNameUsed = new HashSet <string>();
            double           totalWidth    = 0.0;

            for (int ii = 0; ii < numLayersToCreate; ii++)
            {
                int    widthIndex  = widthIndices[ii];
                double scaledWidth = UnitUtil.ScaleLength(MaterialIds[widthIndex].m_matWidth);

                string layerName   = "Layer";
                string description = null;
                string category    = null;
                int?   priority    = null;

                IFCLogical?isVentilated = null;
                int        isVentilatedValue;

                Material material = document.GetElement(MaterialIds[ii].m_baseMatId) as Material;
                if (material != null)
                {
                    if (ParameterUtil.GetIntValueFromElement(material, "IfcMaterialLayer.IsVentilated", out isVentilatedValue) != null)
                    {
                        if (isVentilatedValue == 0)
                        {
                            isVentilated = IFCLogical.False;
                        }
                        else if (isVentilatedValue == 1)
                        {
                            isVentilated = IFCLogical.True;
                        }
                    }

                    if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
                    {
                        layerName = MaterialIds[ii].m_layerName;
                        if (string.IsNullOrEmpty(layerName))
                        {
                            layerName = "Layer";
                        }

                        // Ensure layer name is unique
                        layerName = NamingUtil.GetUniqueNameWithinSet(layerName, ref layerNameUsed);

                        description = NamingUtil.GetOverrideStringValue(material, "IfcMaterialLayer.Description",
                                                                        IFCAnyHandleUtil.GetStringAttribute(materialHnds[ii], "Description"));
                        category = NamingUtil.GetOverrideStringValue(material, "IfcMaterialLayer.Category",
                                                                     IFCAnyHandleUtil.GetStringAttribute(materialHnds[ii], "Category"));
                        int priorityValue;
                        if (ParameterUtil.GetIntValueFromElement(material, "IfcMaterialLayer.Priority", out priorityValue) != null)
                        {
                            priority = priorityValue;
                        }
                    }
                }

                if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
                {
                    // Skip component that has zero width (the will be no geometry associated to it
                    if (MathUtil.IsAlmostZero(scaledWidth))
                    {
                        continue;
                    }

                    IFCAnyHandle materialConstituent = IFCInstanceExporter.CreateMaterialConstituent(file, materialHnds[ii],
                                                                                                     name: layerName, description: description, category: category);
                    layers.Add(materialConstituent);

                    IFCAnyHandle layerQtyHnd = IFCInstanceExporter.CreateQuantityLength(file, "Width", description, null, scaledWidth);
                    totalWidth += scaledWidth;
                    layerWidthQuantities.Add(new Tuple <string, IFCAnyHandle>(layerName, layerQtyHnd));
                }
                else
                {
                    IFCAnyHandle materialLayer = IFCInstanceExporter.CreateMaterialLayer(file, materialHnds[ii], scaledWidth, isVentilated,
                                                                                         name: layerName, description: description, category: category, priority: priority);
                    layers.Add(materialLayer);
                }
            }

            ElementId typeElemId = m_Element.GetTypeId();

            if (layers.Count > 0)
            {
                Element type         = document.GetElement(typeElemId);
                string  layerSetName = NamingUtil.GetOverrideStringValue(type, "IfcMaterialLayerSet.Name", m_ExporterIFC.GetFamilyName());
                string  layerSetDesc = NamingUtil.GetOverrideStringValue(type, "IfcMaterialLayerSet.Description", null);

                if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
                {
                    HashSet <IFCAnyHandle> constituents = new HashSet <IFCAnyHandle>(layers);
                    m_MaterialLayerSetHandle = IFCInstanceExporter.CreateMaterialConstituentSet(file, constituents, name: layerSetName, description: layerSetDesc);
                    foreach (Tuple <string, IFCAnyHandle> layerWidthQty in layerWidthQuantities)
                    {
                        m_LayerQuantityWidthHnd.Add(IFCInstanceExporter.CreatePhysicalComplexQuantity(file, layerWidthQty.Item1, null,
                                                                                                      new HashSet <IFCAnyHandle>()
                        {
                            layerWidthQty.Item2
                        }, "Layer", null, null));
                    }
                    // Finally create the total width as a quantity
                    m_LayerQuantityWidthHnd.Add(IFCInstanceExporter.CreateQuantityLength(file, "Width", null, null, totalWidth));
                }
                else
                {
                    m_MaterialLayerSetHandle = IFCInstanceExporter.CreateMaterialLayerSet(file, layers, layerSetName, layerSetDesc);
                }

                ExporterCacheManager.MaterialSetCache.RegisterLayerSet(typeElemId, m_MaterialLayerSetHandle, this);
            }

            if (!IFCAnyHandleUtil.IsNullOrHasNoValue(m_PrimaryMaterialHandle))
            {
                ExporterCacheManager.MaterialSetCache.RegisterPrimaryMaterialHnd(typeElemId, m_PrimaryMaterialHandle);
            }
        }
        /// <summary>
        /// Collect information about material layer.
        ///   For IFC4RV Architectural exchange, it will generate IfcMatrialConstituentSet along with the relevant IfcShapeAspect and the width in the quantityset
        ///   For IFC4RV Structural exchange, it will generate multiple components as IfcBuildingElementPart for each layer
        ///   For others IfcMaterialLayer will be created
        /// </summary>
        private void CollectMaterialLayerSet()
        {
            ElementId    typeElemId       = m_Element.GetTypeId();
            IFCAnyHandle materialLayerSet = ExporterCacheManager.MaterialSetCache.FindLayerSet(typeElemId);

            // Roofs with no components are only allowed one material.  We will arbitrarily choose the thickest material.
            m_PrimaryMaterialHandle = ExporterCacheManager.MaterialSetCache.FindPrimaryMaterialHnd(typeElemId);

            bool materialHandleIsNotValid = IFCAnyHandleUtil.IsNullOrHasNoValue(materialLayerSet);

            if (IFCAnyHandleUtil.IsNullOrHasNoValue(materialLayerSet) || materialHandleIsNotValid)
            {
                if (materialHandleIsNotValid)
                {
                    UnregisterIFCHandles();
                }
                m_needToGenerateIFCObjects = true;

                List <double> widths = new List <double>();
                List <MaterialFunctionAssignment> functions = new List <MaterialFunctionAssignment>();

                HostObjAttributes hostObjAttr = m_Element.Document.GetElement(typeElemId) as HostObjAttributes;
                if (hostObjAttr == null)
                {
                    // It does not have the HostObjAttribute (where we will get the compound structure for material layer set.
                    // We will define a single material instead and create the material layer set of this single material if there is enough information (At least Material id and thickness)
                    FamilyInstance familyInstance = m_Element as FamilyInstance;
                    if (familyInstance == null)
                    {
                        return;
                    }

                    FamilySymbol            familySymbol = familyInstance.Symbol;
                    ICollection <ElementId> famMatIds    = familySymbol.GetMaterialIds(false);
                    if (famMatIds.Count == 0)
                    {
                        // For some reason Plate type may not return any Material id
                        ElementId baseMatId = CategoryUtil.GetBaseMaterialIdForElement(m_Element);
                        Material  material  = m_Element.Document.GetElement(baseMatId) as Material;
                        if (material == null)
                        {
                            return;
                        }

                        string    layerName    = NamingUtil.GetMaterialLayerName(material);
                        double    matWidth     = 0.0;
                        Parameter thicknessPar = familySymbol.get_Parameter(BuiltInParameter.CURTAIN_WALL_SYSPANEL_THICKNESS);
                        if (thicknessPar != null)
                        {
                            matWidth = thicknessPar.AsDouble();
                        }
                        widths.Add(matWidth);

                        if (baseMatId != ElementId.InvalidElementId)
                        {
                            MaterialIds.Add(new MaterialInfo(baseMatId, layerName, matWidth, MaterialFunctionAssignment.None));
                        }
                        // How to get the thickness? For CurtainWall Panel (PanelType), there is a builtin parameter CURTAINWALL_SYSPANEL_THICKNESS

                        functions.Add(MaterialFunctionAssignment.None);
                    }
                    else
                    {
                        foreach (ElementId matid in famMatIds)
                        {
                            // How to get the thickness? For CurtainWall Panel (PanelType), there is a builtin parameter CURTAINWALL_SYSPANEL_THICKNESS
                            double matWidth = familySymbol.get_Parameter(BuiltInParameter.CURTAIN_WALL_SYSPANEL_THICKNESS)?.AsDouble() ??
                                              ParameterUtil.GetSpecialThicknessParameter(familySymbol);

                            if (MathUtil.IsAlmostZero(matWidth))
                            {
                                continue;
                            }

                            widths.Add(matWidth);
                            ElementId baseMatId = CategoryUtil.GetBaseMaterialIdForElement(m_Element);
                            if (matid != ElementId.InvalidElementId)
                            {
                                Material material = m_Element.Document.GetElement(matid) as Material;
                                if (material != null)
                                {
                                    string layerName = NamingUtil.GetMaterialLayerName(material);
                                    MaterialIds.Add(new MaterialInfo(matid, layerName, matWidth, MaterialFunctionAssignment.None));
                                }
                            }
                            else
                            {
                                MaterialIds.Add(new MaterialInfo(baseMatId, null, matWidth, MaterialFunctionAssignment.None));
                            }

                            functions.Add(MaterialFunctionAssignment.None);
                        }
                    }
                }
                else
                {
                    ElementId         baseMatId = CategoryUtil.GetBaseMaterialIdForElement(m_Element);
                    CompoundStructure cs        = hostObjAttr.GetCompoundStructure();

                    if (cs != null)
                    {
                        double scaledOffset = 0.0, scaledWallWidth = 0.0, wallHeight = 0.0;
                        Wall   wall = m_Element as Wall;
                        if (wall != null)
                        {
                            scaledWallWidth = UnitUtil.ScaleLength(wall.Width);
                            scaledOffset    = -scaledWallWidth / 2.0;
                            BoundingBoxXYZ boundingBox = wall.get_BoundingBox(null);
                            if (boundingBox != null)
                            {
                                wallHeight = boundingBox.Max.Z - boundingBox.Min.Z;
                            }
                        }

                        //TODO: Vertically compound structures are not yet supported by export.
                        if (!cs.IsVerticallyHomogeneous() && !MathUtil.IsAlmostZero(wallHeight))
                        {
                            cs = cs.GetSimpleCompoundStructure(wallHeight, wallHeight / 2.0);
                        }

                        for (int ii = 0; ii < cs.LayerCount; ++ii)
                        {
                            double matWidth = cs.GetLayerWidth(ii);

                            ElementId matId = cs.GetMaterialId(ii);
                            widths.Add(matWidth);
                            // save layer function into ProductWrapper,
                            // it's used while exporting "Function" of Pset_CoveringCommon
                            functions.Add(cs.GetLayerFunction(ii));

                            if (matId != ElementId.InvalidElementId)
                            {
                                Material material = m_Element.Document.GetElement(matId) as Material;
                                if (material != null)
                                {
                                    string layerName = NamingUtil.GetMaterialLayerName(material);
                                    MaterialIds.Add(new MaterialInfo(matId, layerName, matWidth, functions.Last()));
                                }
                            }
                            else
                            {
                                MaterialIds.Add(new MaterialInfo(baseMatId, null, matWidth, functions.Last()));
                            }
                        }
                    }

                    if (MaterialIds.Count == 0)
                    {
                        double matWidth = cs?.GetWidth() ?? 0.0;
                        widths.Add(matWidth);
                        if (baseMatId != ElementId.InvalidElementId)
                        {
                            Material material = m_Element.Document.GetElement(baseMatId) as Material;
                            if (material != null)
                            {
                                string layerName = NamingUtil.GetMaterialLayerName(material);
                                MaterialIds.Add(new MaterialInfo(baseMatId, layerName, matWidth, MaterialFunctionAssignment.None));
                            }
                        }
                        functions.Add(MaterialFunctionAssignment.None);
                    }
                }
            }
            else
            {
                m_needToGenerateIFCObjects = false;

                m_MaterialLayerSetHandle = materialLayerSet;

                MaterialLayerSetInfo mlsInfo = ExporterCacheManager.MaterialSetCache.FindMaterialLayerSetInfo(typeElemId);
                if (mlsInfo != null)
                {
                    MaterialIds             = mlsInfo.MaterialIds;
                    m_PrimaryMaterialHandle = mlsInfo.PrimaryMaterialHandle;
                    m_LayerQuantityWidthHnd = mlsInfo.LayerQuantityWidthHnd;
                }
            }

            return;
        }
Esempio n. 4
0
        /// <summary>
        /// Creates an opening from extrusion data.
        /// </summary>
        /// <param name="exporterIFC">The exporter.</param>
        /// <param name="hostObjHnd">The host handle.</param>
        /// <param name="hostPlacement">The host placement.</param>
        /// <param name="hostElement">The host element.</param>
        /// <param name="insertElement">The opening element.</param>
        /// <param name="openingGUID">The opening GUID.</param>
        /// <param name="extrusionData">The extrusion data.</param>
        /// <param name="lcs">The local coordinate system of the base of the extrusion.</param>
        /// <param name="isRecess">True if it is a recess.</param>
        /// <returns>The opening handle.</returns>
        static public IFCAnyHandle CreateOpening(ExporterIFC exporterIFC, IFCAnyHandle hostObjHnd, IFCAnyHandle hostPlacement, Element hostElement,
                                                 Element insertElement, string openingGUID, IFCExtrusionData extrusionData, Transform lcs, bool isRecess,
                                                 PlacementSetter setter, ProductWrapper localWrapper)
        {
            IFCFile file = exporterIFC.GetFile();

            IList <CurveLoop> curveLoops = extrusionData.GetLoops();

            if (curveLoops.Count == 0)
            {
                return(null);
            }

            if (lcs == null)
            {
                // assumption: first curve loop defines the plane.
                if (!curveLoops[0].HasPlane())
                {
                    return(null);
                }
                lcs = GeometryUtil.CreateTransformFromPlane(curveLoops[0].GetPlane());
            }

            ElementId catId = CategoryUtil.GetSafeCategoryId(insertElement);

            IFCAnyHandle openingProdRepHnd = RepresentationUtil.CreateExtrudedProductDefShape(exporterIFC, insertElement, catId,
                                                                                              curveLoops, lcs, extrusionData.ExtrusionDirection, extrusionData.ScaledExtrusionLength);

            string       openingObjectType = isRecess ? "Recess" : "Opening";
            IFCAnyHandle ownerHistory      = ExporterCacheManager.OwnerHistoryHandle;
            string       openingName       = NamingUtil.GetNameOverride(insertElement, null);

            if (string.IsNullOrEmpty(openingName))
            {
                openingName = NamingUtil.GetNameOverride(hostElement, NamingUtil.CreateIFCObjectName(exporterIFC, hostElement));
            }
            string       openingDescription = NamingUtil.GetDescriptionOverride(insertElement, null);
            string       openingTag         = NamingUtil.GetTagOverride(insertElement);
            IFCAnyHandle openingHnd         = IFCInstanceExporter.CreateOpeningElement(exporterIFC,
                                                                                       openingGUID, ownerHistory, openingName, openingDescription, openingObjectType,
                                                                                       ExporterUtil.CreateLocalPlacement(file, hostPlacement, null), openingProdRepHnd, openingTag);
            IFCExportInfoPair        exportInfo = new IFCExportInfoPair(IFCEntityType.IfcOpeningElement, openingObjectType);
            IFCExtrusionCreationData ecData     = null;

            if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
            {
                double height, width;
                ecData = new IFCExtrusionCreationData();
                if (GeometryUtil.ComputeHeightWidthOfCurveLoop(curveLoops[0], lcs, out height, out width))
                {
                    ecData.ScaledHeight = UnitUtil.ScaleLength(height);
                    ecData.ScaledWidth  = UnitUtil.ScaleLength(width);
                }
                else
                {
                    double area = ExporterIFCUtils.ComputeAreaOfCurveLoops(curveLoops);
                    ecData.ScaledArea = UnitUtil.ScaleArea(area);
                }
                PropertyUtil.CreateOpeningQuantities(exporterIFC, openingHnd, ecData);
            }

            if (localWrapper != null)
            {
                Element elementForProperties = null;
                if (GUIDUtil.IsGUIDFor(insertElement, openingGUID))
                {
                    elementForProperties = insertElement;
                }

                localWrapper.AddElement(elementForProperties, openingHnd, setter, ecData, true, exportInfo);
            }

            string voidGuid = GUIDUtil.CreateGUID();

            IFCInstanceExporter.CreateRelVoidsElement(file, voidGuid, ownerHistory, null, null, hostObjHnd, openingHnd);
            return(openingHnd);
        }
Esempio n. 5
0
        /// <summary>
        /// Creates openings if there is necessary.
        /// </summary>
        /// <param name="elementHandle">The element handle to create openings.</param>
        /// <param name="element">The element to create openings.</param>
        /// <param name="info">The extrusion data.</param>
        /// <param name="extraParams">The extrusion creation data.</param>
        /// <param name="offsetTransform">The offset transform from ExportBody, or the identity transform.</param>
        /// <param name="exporterIFC">The ExporterIFC object.</param>
        /// <param name="originalPlacement">The original placement handle.</param>
        /// <param name="setter">The PlacementSetter.</param>
        /// <param name="wrapper">The ProductWrapper.</param>
        private static void CreateOpeningsIfNecessaryBase(IFCAnyHandle elementHandle, Element element, IList <IFCExtrusionData> info,
                                                          IFCExtrusionCreationData extraParams, Transform offsetTransform, ExporterIFC exporterIFC,
                                                          IFCAnyHandle originalPlacement, PlacementSetter setter, ProductWrapper wrapper)
        {
            if (IFCAnyHandleUtil.IsNullOrHasNoValue(elementHandle))
            {
                return;
            }

            int sz = info.Count;

            if (sz == 0)
            {
                return;
            }

            using (TransformSetter transformSetter = TransformSetter.Create())
            {
                if (offsetTransform != null)
                {
                    transformSetter.Initialize(exporterIFC, offsetTransform.Inverse);
                }

                IFCFile   file       = exporterIFC.GetFile();
                ElementId categoryId = CategoryUtil.GetSafeCategoryId(element);
                Document  document   = element.Document;

                string openingObjectType = "Opening";

                int openingNumber = 1;
                for (int curr = info.Count - 1; curr >= 0; curr--)
                {
                    Transform    extrusionTrf    = Transform.Identity;
                    IFCAnyHandle extrusionHandle =
                        ExtrusionExporter.CreateExtrudedSolidFromExtrusionData(exporterIFC, element, info[curr], out extrusionTrf);
                    if (IFCAnyHandleUtil.IsNullOrHasNoValue(extrusionHandle))
                    {
                        continue;
                    }

                    BodyExporter.CreateSurfaceStyleForRepItem(exporterIFC, document, extrusionHandle, ElementId.InvalidElementId);

                    HashSet <IFCAnyHandle> bodyItems = new HashSet <IFCAnyHandle>();
                    bodyItems.Add(extrusionHandle);

                    IFCAnyHandle         contextOfItems  = exporterIFC.Get3DContextHandle("Body");
                    IFCAnyHandle         bodyRep         = RepresentationUtil.CreateSweptSolidRep(exporterIFC, element, categoryId, contextOfItems, bodyItems, null);
                    IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();
                    representations.Add(bodyRep);

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

                    IFCAnyHandle openingPlacement   = ExporterUtil.CopyLocalPlacement(file, originalPlacement);
                    string       guid               = GUIDUtil.CreateGUID();
                    IFCAnyHandle ownerHistory       = ExporterCacheManager.OwnerHistoryHandle;
                    string       openingName        = NamingUtil.GetIFCNamePlusIndex(element, openingNumber++);
                    string       openingDescription = NamingUtil.GetDescriptionOverride(element, null);
                    string       openingTag         = NamingUtil.GetTagOverride(element);
                    IFCAnyHandle openingElement     = IFCInstanceExporter.CreateOpeningElement(exporterIFC,
                                                                                               guid, ownerHistory, openingName, openingDescription, openingObjectType,
                                                                                               openingPlacement, openingRep, openingTag);
                    IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcOpeningElement);
                    wrapper.AddElement(null, openingElement, setter, extraParams, true, exportInfo);
                    if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities && (extraParams != null))
                    {
                        PropertyUtil.CreateOpeningQuantities(exporterIFC, openingElement, extraParams);
                    }

                    string voidGuid = GUIDUtil.CreateGUID();
                    IFCInstanceExporter.CreateRelVoidsElement(file, voidGuid, ownerHistory, null, null, elementHandle, openingElement);
                }
            }
        }
Esempio n. 6
0
        /// <summary>
        /// Creates an opening from a solid.
        /// </summary>
        /// <param name="exporterIFC">The exporter.</param>
        /// <param name="hostObjHnd">The host object handle.</param>
        /// <param name="hostElement">The host element.</param>
        /// <param name="insertElement">The insert element.</param>
        /// <param name="openingGUID">The GUID for the opening, depending on how the opening is created.</param>
        /// <param name="solid">The solid.</param>
        /// <param name="scaledHostWidth">The scaled host width.</param>
        /// <param name="isRecess">True if it is recess.</param>
        /// <param name="extrusionCreationData">The extrusion creation data.</param>
        /// <param name="setter">The placement setter.</param>
        /// <param name="localWrapper">The product wrapper.</param>
        /// <returns>The created opening handle.</returns>
        static public IFCAnyHandle CreateOpening(ExporterIFC exporterIFC, IFCAnyHandle hostObjHnd, Element hostElement, Element insertElement, string openingGUID,
                                                 Solid solid, double scaledHostWidth, bool isRecess, IFCExtrusionCreationData extrusionCreationData, PlacementSetter setter, ProductWrapper localWrapper)
        {
            IFCFile file = exporterIFC.GetFile();

            ElementId catId = CategoryUtil.GetSafeCategoryId(insertElement);

            XYZ  prepToWall;
            bool isLinearWall = GetOpeningDirection(hostElement, out prepToWall);

            if (isLinearWall)
            {
                extrusionCreationData.CustomAxis            = prepToWall;
                extrusionCreationData.PossibleExtrusionAxes = IFCExtrusionAxes.TryCustom;
            }

            BodyExporterOptions bodyExporterOptions = new BodyExporterOptions(true, ExportOptionsCache.ExportTessellationLevel.ExtraLow);
            BodyData            bodyData            = BodyExporter.ExportBody(exporterIFC, insertElement, catId, ElementId.InvalidElementId,
                                                                              solid, bodyExporterOptions, extrusionCreationData);

            IFCAnyHandle openingRepHnd = bodyData.RepresentationHnd;

            if (IFCAnyHandleUtil.IsNullOrHasNoValue(openingRepHnd))
            {
                extrusionCreationData.ClearOpenings();
                return(null);
            }
            IList <IFCAnyHandle> representations = new List <IFCAnyHandle>();

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

            IFCAnyHandle openingPlacement    = extrusionCreationData.GetLocalPlacement();
            IFCAnyHandle hostObjPlacementHnd = IFCAnyHandleUtil.GetObjectPlacement(hostObjHnd);
            Transform    relTransform        = ExporterIFCUtils.GetRelativeLocalPlacementOffsetTransform(openingPlacement, hostObjPlacementHnd);

            openingPlacement = ExporterUtil.CreateLocalPlacement(file, hostObjPlacementHnd,
                                                                 relTransform.Origin, relTransform.BasisZ, relTransform.BasisX);

            IFCAnyHandle ownerHistory        = ExporterCacheManager.OwnerHistoryHandle;
            double       scaledOpeningLength = extrusionCreationData.ScaledLength;
            string       openingObjectType   = "Opening";

            if (!MathUtil.IsAlmostZero(scaledHostWidth) && !MathUtil.IsAlmostZero(scaledOpeningLength))
            {
                openingObjectType = scaledOpeningLength < (scaledHostWidth - MathUtil.Eps()) ? "Recess" : "Opening";
            }
            else
            {
                openingObjectType = isRecess ? "Recess" : "Opening";
            }

            string openingName = NamingUtil.GetNameOverride(insertElement, null);

            if (string.IsNullOrEmpty(openingName))
            {
                if (!IFCAnyHandleUtil.IsNullOrHasNoValue(hostObjHnd))
                {
                    openingName = IFCAnyHandleUtil.GetStringAttribute(hostObjHnd, "Name");
                }
                else
                {
                    openingName = NamingUtil.GetNameOverride(hostElement, NamingUtil.CreateIFCObjectName(exporterIFC, hostElement));
                }
            }

            string       openingDescription = NamingUtil.GetDescriptionOverride(insertElement, null);
            string       openingTag         = NamingUtil.GetTagOverride(insertElement);
            IFCAnyHandle openingHnd         = IFCInstanceExporter.CreateOpeningElement(exporterIFC,
                                                                                       openingGUID, ownerHistory, openingName, openingDescription, openingObjectType,
                                                                                       openingPlacement, prodRep, openingTag);
            IFCExportInfoPair exportInfo = new IFCExportInfoPair(IFCEntityType.IfcOpeningElement, openingObjectType);

            if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
            {
                PropertyUtil.CreateOpeningQuantities(exporterIFC, openingHnd, extrusionCreationData);
            }

            if (localWrapper != null)
            {
                Element elementForProperties = null;
                if (GUIDUtil.IsGUIDFor(insertElement, openingGUID))
                {
                    elementForProperties = insertElement;
                }

                localWrapper.AddElement(insertElement, openingHnd, setter, extrusionCreationData, false, exportInfo);
            }

            string voidGuid = GUIDUtil.CreateGUID();

            IFCInstanceExporter.CreateRelVoidsElement(file, voidGuid, ownerHistory, null, null, hostObjHnd, openingHnd);
            return(openingHnd);
        }