예제 #1
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="plane">The plane.</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, Plane plane, bool isRecess,
                                                 PlacementSetter setter, ProductWrapper localWrapper)
        {
            IFCFile file = exporterIFC.GetFile();

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

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

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

            ElementId catId = CategoryUtil.GetSafeCategoryId(insertElement);

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

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

            if (string.IsNullOrEmpty(openingName))
            {
                openingName = NamingUtil.GetNameOverride(hostElement, NamingUtil.CreateIFCObjectName(exporterIFC, hostElement));
            }
            IFCAnyHandle openingHnd = IFCInstanceExporter.CreateOpeningElement(file, openingGUID, ownerHistory, openingName, null,
                                                                               openingObjectType, ExporterUtil.CreateLocalPlacement(file, hostPlacement, null), openingProdRepHnd, null);
            IFCExtrusionCreationData ecData = null;

            if (ExporterCacheManager.ExportOptionsCache.ExportBaseQuantities)
            {
                double height, width;
                ecData = new IFCExtrusionCreationData();
                if (GeometryUtil.ComputeHeightWidthOfCurveLoop(curveLoops[0], plane, 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);
            }

            string voidGuid = GUIDUtil.CreateGUID();

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