C# ExporterIFC.GetOptions方法代码示例

        /// <summary>
        /// Performs the export of elements, including spatial and non-spatial elements.
        /// </summary>
        /// <param name="exporterIFC">The IFC exporter object.</param>
        /// <param name="element ">The element to export.</param>
        public virtual void ExportElement(ExporterIFC exporterIFC, Autodesk.Revit.DB.Element element)
        {
            if (!CanExportElement(exporterIFC, element))
            {
                if (element is RevitLinkInstance && !ExporterCacheManager.ExportOptionsCache.ExportingLink)
                {
                    IDictionary<String, String> options = exporterIFC.GetOptions();
                    bool? bExportLinks = ExportOptionsCache.GetNamedBooleanOption(options, "ExportLinkedFiles");
                    if (bExportLinks.HasValue && bExportLinks.Value == true)
                    {
                        bool bStoreIFCGUID = ExporterCacheManager.ExportOptionsCache.GUIDOptions.StoreIFCGUID;
                        ExporterCacheManager.ExportOptionsCache.GUIDOptions.StoreIFCGUID = true;
                        GUIDUtil.CreateGUID(element);
                        ExporterCacheManager.ExportOptionsCache.GUIDOptions.StoreIFCGUID = bStoreIFCGUID;
                    }
                }
                return;
            }

            //WriteIFCExportedElements
            if (m_Writer != null)
            {
                Category category = element.Category;
                m_Writer.WriteLine(String.Format("{0},{1},{2}", element.Id, category == null ? "null" : category.Name, element.GetType().Name));
            }

            try
            {
                using (ProductWrapper productWrapper = ProductWrapper.Create(exporterIFC, true))
                {
                    ExportElementImpl(exporterIFC, element, productWrapper);
                    ExporterUtil.ExportRelatedProperties(exporterIFC, element, productWrapper);
                }

                // We are going to clear the parameter cache for the element (not the type) after the export.
                // We do not expect to need the parameters for this element again, so we can free up the space.
                if (!(element is ElementType) && !ExporterStateManager.ShouldPreserveElementParameterCache(element))
                    ParameterUtil.RemoveElementFromCache(element);
            }
            catch (System.Exception ex)
            {
                HandleUnexpectedException(ex, exporterIFC, element);
            }
        }

        /// <summary>
        /// Creates a new export options cache from the data in the ExporterIFC passed from Revit.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC handle passed during export.</param>
        /// <returns>The new cache.</returns>
        public static ExportOptionsCache Create(ExporterIFC exporterIFC, Document document, Autodesk.Revit.DB.View filterView)
        {
            IDictionary<String, String> options = exporterIFC.GetOptions();

            ExportOptionsCache cache = new ExportOptionsCache();
            cache.FileVersion = exporterIFC.FileVersion;
            cache.FileName = exporterIFC.FileName;
            cache.ExportBaseQuantities = exporterIFC.ExportBaseQuantities;
            cache.WallAndColumnSplitting = exporterIFC.WallAndColumnSplitting;
            cache.SpaceBoundaryLevel = exporterIFC.SpaceBoundaryLevel;
            // Export Part element only if 'Current View Only' is checked and 'Show Parts' is selected. 
            cache.ExportParts = filterView != null && filterView.PartsVisibility == PartsVisibility.ShowPartsOnly;
            cache.ExportPartsAsBuildingElementsOverride = null;
            cache.ExportAllLevels = false;
            cache.ExportAnnotationsOverride = null;
            cache.FilterViewForExport = filterView;
            cache.ExportBoundingBoxOverride = null;
            cache.IncludeSiteElevation = false;
            cache.UseCoarseTessellation = true;

            cache.PropertySetOptions = PropertySetOptions.Create(exporterIFC, cache);

            String use2DRoomBoundary = Environment.GetEnvironmentVariable("Use2DRoomBoundaryForRoomVolumeCalculationOnIFCExport");
            bool? use2DRoomBoundaryOption = GetNamedBooleanOption(options, "Use2DRoomBoundaryForVolume");
            cache.Use2DRoomBoundaryForRoomVolumeCreation =
                ((use2DRoomBoundary != null && use2DRoomBoundary == "1") ||
                cache.ExportAs2x2 ||
                (use2DRoomBoundaryOption != null && use2DRoomBoundaryOption.GetValueOrDefault()));

            bool? exportAdvancedSweptSolids = GetNamedBooleanOption(options, "ExportAdvancedSweptSolids");
            cache.ExportAdvancedSweptSolids = (exportAdvancedSweptSolids.HasValue) ? exportAdvancedSweptSolids.Value : false;

            // Set GUIDOptions here.
            {
                // This option should be rarely used, and is only for consistency with old files.  As such, it is set by environment variable only.
                String use2009GUID = Environment.GetEnvironmentVariable("Assign2009GUIDToBuildingStoriesOnIFCExport");
                cache.GUIDOptions.Use2009BuildingStoreyGUIDs = (use2009GUID != null && use2009GUID == "1");

                bool? allowGUIDParameterOverride = GetNamedBooleanOption(options, "AllowGUIDParameterOverride");
                if (allowGUIDParameterOverride != null)
                    cache.GUIDOptions.AllowGUIDParameterOverride = allowGUIDParameterOverride.Value;

                bool? storeIFCGUID = GetNamedBooleanOption(options, "StoreIFCGUID");
                if (storeIFCGUID != null)
                    cache.GUIDOptions.StoreIFCGUID = storeIFCGUID.Value;
            }

            // Set NamingOptions here.
            cache.NamingOptions = new NamingOptions();
            {
                bool? useFamilyAndTypeNameForReference = GetNamedBooleanOption(options, "UseFamilyAndTypeNameForReference");
                cache.NamingOptions.UseFamilyAndTypeNameForReference =
                    (useFamilyAndTypeNameForReference != null) && useFamilyAndTypeNameForReference.GetValueOrDefault();

                bool? useVisibleRevitNameAsEntityName = GetNamedBooleanOption(options, "UseVisibleRevitNameAsEntityName");
                cache.NamingOptions.UseVisibleRevitNameAsEntityName =
                    (useVisibleRevitNameAsEntityName != null) && useVisibleRevitNameAsEntityName.GetValueOrDefault();
            }

            // "SingleElement" export option - useful for debugging - only one input element will be processed for export
            String singleElementValue;
            String elementsToExportValue;
            if (options.TryGetValue("SingleElement", out singleElementValue))
            {
                ElementId elementId = ParseElementId(singleElementValue);
                
                List<ElementId> ids = new List<ElementId>();
                ids.Add(elementId);
                cache.ElementsForExport = ids;
            }
            else if (options.TryGetValue("ElementsForExport", out elementsToExportValue))
            {
                IList<ElementId> ids = ParseElementIds(elementsToExportValue);
                cache.ElementsForExport = ids;
            }
            else
            {
                cache.ElementsForExport = new List<ElementId>();
            }

            // "ExportAnnotations" override
            cache.ExportAnnotationsOverride = GetNamedBooleanOption(options, "ExportAnnotations");

            // "ExportSeparateParts" override
            cache.ExportPartsAsBuildingElementsOverride = GetNamedBooleanOption(options, "ExportPartsAsBuildingElements");

            // "ExportBoundingBox" override
            cache.ExportBoundingBoxOverride = GetNamedBooleanOption(options, "ExportBoundingBox");

            // Using the alternate UI or not.
            cache.AlternateUIVersionOverride = GetNamedStringOption(options, "AlternateUIVersion");

            // Include IFCSITE elevation in the site local placement origin
            bool? includeIfcSiteElevation = GetNamedBooleanOption(options, "IncludeSiteElevation");
            cache.IncludeSiteElevation = includeIfcSiteElevation != null ? includeIfcSiteElevation.Value : false;
//.........这里部分代码省略.........

        /// <summary>
        /// Creates a new property set options cache from the data in the ExporterIFC passed from Revit.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC handle passed during export.</param>
        /// <returns>The new cache.</returns>
        /// <remarks>Please initialize this after all other code, as it relies on a consistent cache otherwise.</remarks>
        public static PropertySetOptions Create(ExporterIFC exporterIFC, Autodesk.Revit.DB.View filterView,
            ExportOptionsCache cache)
        {
            IDictionary<String, String> options = exporterIFC.GetOptions();

            PropertySetOptions propertySetOptions = new PropertySetOptions();

            propertySetOptions.m_ExportInternalRevit = (cache.FileVersion != IFCVersion.IFC2x3CV2);

            // "Revit property sets" override
            propertySetOptions.ExportInternalRevitOverride = ExportOptionsCache.GetNamedBooleanOption(options, "ExportInternalRevitPropertySets");

            // "ExportIFCCommonPropertySets" override
            propertySetOptions.ExportIFCCommonOverride = ExportOptionsCache.GetNamedBooleanOption(options, "ExportIFCCommonPropertySets");

            return propertySetOptions;
        }

        /// <summary>
        /// Creates a new export options cache from the data in the ExporterIFC passed from Revit.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC handle passed during export.</param>
        /// <returns>The new cache.</returns>
        public static ExportOptionsCache Create(ExporterIFC exporterIFC, Document document, Autodesk.Revit.DB.View filterView)
        {
            IDictionary<String, String> options = exporterIFC.GetOptions();

            ExportOptionsCache cache = new ExportOptionsCache();
            cache.FileVersion = exporterIFC.FileVersion;
            cache.FileName = exporterIFC.FileName;
            cache.ExportBaseQuantities = exporterIFC.ExportBaseQuantities;
            cache.WallAndColumnSplitting = exporterIFC.WallAndColumnSplitting;
            cache.SpaceBoundaryLevel = exporterIFC.SpaceBoundaryLevel;
            // Export Part element only if 'Current View Only' is checked and 'Show Parts' is selected. 
            cache.ExportParts = filterView != null && filterView.PartsVisibility == PartsVisibility.ShowPartsOnly;
            cache.ExportPartsAsBuildingElementsOverride = null;
            cache.ExportAllLevels = false;
            cache.ExportAnnotationsOverride = null;

            // There is a bug in the native code that doesn't allow us to cast the filterView to any sub-type of View.  Work around this by re-getting the element pointer.
            if (filterView != null)
                cache.FilterViewForExport = filterView.Document.GetElement(filterView.Id) as View;
            else
                cache.FilterViewForExport = null;

            cache.ExportBoundingBoxOverride = null;
            cache.IncludeSiteElevation = false;

            cache.PropertySetOptions = PropertySetOptions.Create(exporterIFC, cache);

            String use2DRoomBoundary = Environment.GetEnvironmentVariable("Use2DRoomBoundaryForRoomVolumeCalculationOnIFCExport");
            bool? use2DRoomBoundaryOption = GetNamedBooleanOption(options, "Use2DRoomBoundaryForVolume");
            cache.Use2DRoomBoundaryForRoomVolumeCreation =
                ((use2DRoomBoundary != null && use2DRoomBoundary == "1") ||
                cache.ExportAs2x2 ||
                (use2DRoomBoundaryOption != null && use2DRoomBoundaryOption.GetValueOrDefault()));

            bool? exportAdvancedSweptSolids = GetNamedBooleanOption(options, "ExportAdvancedSweptSolids");
            cache.ExportAdvancedSweptSolids = (exportAdvancedSweptSolids.HasValue) ? exportAdvancedSweptSolids.Value : false;

            // Set GUIDOptions here.
            {
                // This option should be rarely used, and is only for consistency with old files.  As such, it is set by environment variable only.
                String use2009GUID = Environment.GetEnvironmentVariable("Assign2009GUIDToBuildingStoriesOnIFCExport");
                cache.GUIDOptions.Use2009BuildingStoreyGUIDs = (use2009GUID != null && use2009GUID == "1");

                bool? allowGUIDParameterOverride = GetNamedBooleanOption(options, "AllowGUIDParameterOverride");
                if (allowGUIDParameterOverride != null)
                    cache.GUIDOptions.AllowGUIDParameterOverride = allowGUIDParameterOverride.Value;

                bool? storeIFCGUID = GetNamedBooleanOption(options, "StoreIFCGUID");
                if (storeIFCGUID != null)
                    cache.GUIDOptions.StoreIFCGUID = storeIFCGUID.Value;
            }

            // Set NamingOptions here.
            cache.NamingOptions = new NamingOptions();
            {
                bool? useFamilyAndTypeNameForReference = GetNamedBooleanOption(options, "UseFamilyAndTypeNameForReference");
                cache.NamingOptions.UseFamilyAndTypeNameForReference =
                    (useFamilyAndTypeNameForReference != null) && useFamilyAndTypeNameForReference.GetValueOrDefault();

                bool? useVisibleRevitNameAsEntityName = GetNamedBooleanOption(options, "UseVisibleRevitNameAsEntityName");
                cache.NamingOptions.UseVisibleRevitNameAsEntityName =
                    (useVisibleRevitNameAsEntityName != null) && useVisibleRevitNameAsEntityName.GetValueOrDefault();
            }

            // "SingleElement" export option - useful for debugging - only one input element will be processed for export
            String singleElementValue;
            String elementsToExportValue;
            if (options.TryGetValue("SingleElement", out singleElementValue))
            {
                ElementId elementId = ParseElementId(singleElementValue);

                List<ElementId> ids = new List<ElementId>();
                ids.Add(elementId);
                cache.ElementsForExport = ids;
            }
            else if (options.TryGetValue("ElementsForExport", out elementsToExportValue))
            {
                IList<ElementId> ids = ParseElementIds(elementsToExportValue);
                cache.ElementsForExport = ids;
            }
            else
            {
                cache.ElementsForExport = new List<ElementId>();
            }

            // "ExportAnnotations" override
            cache.ExportAnnotationsOverride = GetNamedBooleanOption(options, "ExportAnnotations");

            // "ExportSeparateParts" override
            cache.ExportPartsAsBuildingElementsOverride = GetNamedBooleanOption(options, "ExportPartsAsBuildingElements");

            // "ExportBoundingBox" override
            cache.ExportBoundingBoxOverride = GetNamedBooleanOption(options, "ExportBoundingBox");

            bool? exportRoomsInView = GetNamedBooleanOption(options, "ExportRoomsInView");
//.........这里部分代码省略.........

        /// <summary>
        /// Creates a new export options cache from the data in the ExporterIFC passed from Revit.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC handle passed during export.</param>
        /// <returns>The new cache.</returns>
        public static ExportOptionsCache Create(ExporterIFC exporterIFC, Autodesk.Revit.DB.View filterView)
        {
            IDictionary<String, String> options = exporterIFC.GetOptions();

            ExportOptionsCache cache = new ExportOptionsCache();
            cache.FileVersion = exporterIFC.FileVersion;
            cache.FileName = exporterIFC.FileName;
            cache.ExportBaseQuantities = exporterIFC.ExportBaseQuantities;
            cache.WallAndColumnSplitting = exporterIFC.WallAndColumnSplitting;
            cache.SpaceBoundaryLevel = exporterIFC.SpaceBoundaryLevel;
            // Export Part element only if 'Current View Only' is checked and 'Show Parts' is selected. 
            cache.ExportParts = filterView != null && filterView.PartsVisibility == PartsVisibility.ShowPartsOnly;
            cache.ExportPartsAsBuildingElementsOverride = null;
            cache.ExportAllLevels = false;
            cache.ExportAnnotationsOverride = null;
            cache.FilterViewForExport = filterView;
            cache.ExportSurfaceStylesOverride = null;
            cache.ExportBoundingBoxOverride = null;
            
            cache.PropertySetOptions = PropertySetOptions.Create(exporterIFC, filterView, cache);

            String use2DRoomBoundary = Environment.GetEnvironmentVariable("Use2DRoomBoundaryForRoomVolumeCalculationOnIFCExport");
            bool? use2DRoomBoundaryOption = GetNamedBooleanOption(options, "Use2DRoomBoundaryForVolume");
            cache.Use2DRoomBoundaryForRoomVolumeCreation =
                ((use2DRoomBoundary != null && use2DRoomBoundary == "1") ||
                cache.ExportAs2x2 ||
                (use2DRoomBoundaryOption != null && use2DRoomBoundaryOption.GetValueOrDefault()));

                bool? exportAdvancedSweptSolids = GetNamedBooleanOption(options, "ExportAdvancedSweptSolids");
            cache.ExportAdvancedSweptSolids = (exportAdvancedSweptSolids.HasValue) ? exportAdvancedSweptSolids.Value : false;
            
            // Set GUIDOptions here.
            cache.GUIDOptions = new GUIDOptions();
            {
                // This option should be rarely used, and is only for consistency with old files.  As such, it is set by environment variable only.
                String use2009GUID = Environment.GetEnvironmentVariable("Assign2009GUIDToBuildingStoriesOnIFCExport");
                cache.GUIDOptions.Use2009BuildingStoreyGUIDs = (use2009GUID != null && use2009GUID == "1");

                bool? allowGUIDParameterOverride = GetNamedBooleanOption(options, "AllowGUIDParameterOverride");
                if (allowGUIDParameterOverride != null)
                    cache.GUIDOptions.AllowGUIDParameterOverride = allowGUIDParameterOverride.Value;
            }

            // Set NamingOptions here.
            cache.NamingOptions = new NamingOptions();
            {
                bool? useFamilyAndTypeNameForReference = GetNamedBooleanOption(options, "UseFamilyAndTypeNameForReference");
                cache.NamingOptions.UseFamilyAndTypeNameForReference =
                    (useFamilyAndTypeNameForReference != null) && useFamilyAndTypeNameForReference.GetValueOrDefault();

                bool? useVisibleRevitNameAsEntityName = GetNamedBooleanOption(options, "UseVisibleRevitNameAsEntityName");
                cache.NamingOptions.UseVisibleRevitNameAsEntityName =
                    (useVisibleRevitNameAsEntityName != null) && useVisibleRevitNameAsEntityName.GetValueOrDefault();
            }

            // "SingleElement" export option - useful for debugging - only one input element will be processed for export
            String singleElementValue;
            String elementsToExportValue;
            if (options.TryGetValue("SingleElement", out singleElementValue))
            {
                int elementIdAsInt;
                if (Int32.TryParse(singleElementValue, out elementIdAsInt))
                {
                    List<ElementId> ids = new List<ElementId>();
                    ids.Add(new ElementId(elementIdAsInt));
                    cache.ElementsForExport = ids;
                }
                else
                {
                    // Error - the option supplied could not be mapped to int.
                    // TODO: consider logging this error later and handling results better.
                    throw new Exception("Option 'SingleElement' did not map to a usable element id");
                }
            }
            else if (options.TryGetValue("ElementsForExport", out elementsToExportValue))
            {
                String[] elements = elementsToExportValue.Split(';');
                List<ElementId> ids = new List<ElementId>();
                foreach (String element in elements)
                {
                    int elementIdAsInt;
                    if (Int32.TryParse(element, out elementIdAsInt))
                    {
                        ids.Add(new ElementId(elementIdAsInt));
                    }
                    else
                    {
                        // Error - the option supplied could not be mapped to int.
                        // TODO: consider logging this error later and handling results better.
                        throw new Exception("Option 'ElementsForExport' substring " + element + " did not map to a usable element id");
                    }
                }
                cache.ElementsForExport = ids;
            }
            else
//.........这里部分代码省略.........

        /// <summary>
        /// Creates a new property set options cache from the data in the ExporterIFC passed from Revit.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC handle passed during export.</param>
        /// <returns>The new cache.</returns>
        /// <remarks>Please initialize this after all other code, as it relies on a consistent cache otherwise.</remarks>
        public static PropertySetOptions Create(ExporterIFC exporterIFC, ExportOptionsCache cache)
        {
            IDictionary<String, String> options = exporterIFC.GetOptions();

            PropertySetOptions propertySetOptions = new PropertySetOptions();

            propertySetOptions.m_ExportInternalRevit = (cache.FileVersion != IFCVersion.IFC2x3CV2);

            // "Revit property sets" override
            propertySetOptions.ExportInternalRevitOverride = ExportOptionsCache.GetNamedBooleanOption(options, "ExportInternalRevitPropertySets");

            // "ExportIFCCommonPropertySets" override
            propertySetOptions.ExportIFCCommonOverride = ExportOptionsCache.GetNamedBooleanOption(options, "ExportIFCCommonPropertySets");

            // "ExportSchedulesAsPsets" override
            propertySetOptions.ExportSchedulesAsPsetsOverride = ExportOptionsCache.GetNamedBooleanOption(options, "ExportSchedulesAsPsets");
            
            // "ExportUserDefinedPsets" override
            propertySetOptions.ExportUserDefinedPsetsOverride = ExportOptionsCache.GetNamedBooleanOption(options, "ExportUserDefinedPsets");

            // "ExportUserDefinedPsetsFileName" override
            propertySetOptions.ExportUserDefinedPsetsFileName = ExportOptionsCache.GetNamedStringOption(options, "ExportUserDefinedPsetsFileName");
           
            return propertySetOptions;
        }

        /// <summary>
        /// Creates a new export options cache from the data in the ExporterIFC passed from Revit.
        /// </summary>
        /// <param name="exporterIFC">The ExporterIFC handle passed during export.</param>
        /// <returns>The new cache.</returns>
        public static ExportOptionsCache Create(ExporterIFC exporterIFC, Autodesk.Revit.DB.View filterView)
        {
            IDictionary<String, String> options = exporterIFC.GetOptions();

            ExportOptionsCache cache = new ExportOptionsCache();
            cache.FileVersion = exporterIFC.FileVersion;
            cache.FileName = exporterIFC.FileName;
            cache.ExportBaseQuantities = exporterIFC.ExportBaseQuantities;
            cache.WallAndColumnSplitting = exporterIFC.WallAndColumnSplitting;
            cache.SpaceBoundaryLevel = exporterIFC.SpaceBoundaryLevel;
            // Export Part element only if 'Current View Only' is checked and 'Show Parts' is selected. 
            cache.ExportParts = filterView != null && filterView.PartsVisibility == PartsVisibility.ShowPartsOnly;
            cache.ExportPartsAsBuildingElementsOverride = null;
            cache.ExportAllLevels = false;
            cache.ExportAnnotationsOverride = null;
            cache.ExportInternalRevitPropertySetsOverride = null;
            cache.FilterViewForExport = filterView;

            String use2009GUID = Environment.GetEnvironmentVariable("Assign2009GUIDToBuildingStoriesOnIFCExport");
            cache.Use2009BuildingStoreyGUIDs = (use2009GUID != null && use2009GUID == "1");

            String use2DRoomBoundary = Environment.GetEnvironmentVariable("Use2DRoomBoundaryForRoomVolumeCalculationOnIFCExport");
            bool? use2DRoomBoundaryOption = GetNamedBooleanOption(options, "Use2DRoomBoundaryForVolume");
            cache.Use2DRoomBoundaryForRoomVolumeCreation =
                ((use2DRoomBoundary != null && use2DRoomBoundary == "1") || 
                cache.ExportAs2x2 || 
                (use2DRoomBoundaryOption != null && use2DRoomBoundaryOption.GetValueOrDefault()));

            bool? useFamilyAndTypeNameForReference = GetNamedBooleanOption(options, "UseFamilyAndTypeNameForReference");
            cache.UseFamilyAndTypeNameForReference = (useFamilyAndTypeNameForReference != null) && useFamilyAndTypeNameForReference.GetValueOrDefault();

            // "SingleElement" export option - useful for debugging - only one input element will be processed for export
            String singleElementValue;
            String elementsToExportValue;
            if (options.TryGetValue("SingleElement", out singleElementValue))
            {
                int elementIdAsInt;
                if (Int32.TryParse(singleElementValue, out elementIdAsInt))
                {
                    List<ElementId> ids = new List<ElementId>();
                    ids.Add(new ElementId(elementIdAsInt));
                    cache.ElementsForExport = ids;
                }
                else
                {
                    // Error - the option supplied could not be mapped to int.
                    // TODO: consider logging this error later and handling results better.
                    throw new Exception("Option 'SingleElement' did not map to a usable element id");
                }
            }
            else if (options.TryGetValue("ElementsForExport", out elementsToExportValue))
            {
                String[] elements = elementsToExportValue.Split(';');
                List<ElementId> ids = new List<ElementId>();
                foreach (String element in elements)
                {
                    int elementIdAsInt;
                    if (Int32.TryParse(element, out elementIdAsInt))
                    {
                        ids.Add(new ElementId(elementIdAsInt));
                    }
                    else
                    {
                        // Error - the option supplied could not be mapped to int.
                        // TODO: consider logging this error later and handling results better.
                        throw new Exception("Option 'ElementsForExport' substring " + element + " did not map to a usable element id");
                    }
                }
                cache.ElementsForExport = ids;
            }
            else
            {
                cache.ElementsForExport = new List<ElementId>();
            }

            // "ExportAnnotations" override
            cache.ExportAnnotationsOverride = GetNamedBooleanOption(options, "ExportAnnotations");

            // "Revit property sets" override
            cache.ExportInternalRevitPropertySetsOverride = GetNamedBooleanOption(options, "ExportInternalRevitPropertySets");

            // "ExportSeparateParts" override
            cache.ExportPartsAsBuildingElementsOverride = GetNamedBooleanOption(options, "ExportPartsAsBuildingElements");

            // "FileType" - note - setting is not respected yet
            ParseFileType(options, cache);

            return cache;
        }