/// <summary>
/// Creates or populates Revit elements based on the information contained in this class.
/// </summary>
/// <param name="doc">The document.</param>
protected override void Create(Document doc)
{
// If we created an element above, then we will set the shape of it to be the same of the shapes of the contained spaces.
IList <GeometryObject> geomObjs = new List <GeometryObject>();
foreach (IFCObjectDefinition objDef in RelatedObjects)
{
if (!(objDef is IFCSpace))
{
continue;
}
// This lets us create a copy of the space geometry with the Zone graphics style.
IList <IFCSolidInfo> solids = IFCElement.CloneElementGeometry(doc, objDef as IFCProduct, this, false);
if (solids != null)
{
foreach (IFCSolidInfo solidGeom in solids)
{
geomObjs.Add(solidGeom.GeometryObject);
}
}
}
DirectShape zoneElement = IFCElementUtil.CreateElement(doc, CategoryId, GlobalId, geomObjs);
if (zoneElement != null)
{
CreatedElementId = zoneElement.Id;
CreatedGeometry = geomObjs;
}
base.Create(doc);
}
/// <summary>
/// Gets the elements hosted by this host element, if any.
/// </summary>
/// <param name="hostElement">The host element.</param>
/// <returns>The hosted elements, or null. An unfilled opening counts as a hosted element.</returns>
static public IList<IFCElement> GetHostedElements(IFCElement hostElement)
{
if (hostElement == null)
return null;
ICollection<IFCFeatureElementSubtraction> openings = hostElement.Openings;
if (openings == null || (openings.Count == 0))
return null;
IList<IFCElement> hostedElements = new List<IFCElement>();
foreach (IFCFeatureElementSubtraction opening in openings)
{
if (!(opening is IFCOpeningElement))
hostedElements.Add(opening);
else
{
IFCOpeningElement openingElement = opening as IFCOpeningElement;
if (openingElement.FilledByElement != null)
hostedElements.Add(openingElement.FilledByElement);
else
hostedElements.Add(openingElement);
}
}
return hostedElements;
}
/// <summary>
/// Processes IfcOpeningElement attributes.
/// </summary>
/// <param name="ifcOpeningElement">The IfcOpeningElement handle.</param>
protected override void Process(IFCAnyHandle ifcOpeningElement)
{
base.Process(ifcOpeningElement);
ICollection <IFCAnyHandle> hasFillings = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcOpeningElement, "HasFillings");
if (hasFillings != null)
{
// Assume that there is only one filling for the opening, and take first found.
foreach (IFCAnyHandle hasFilling in hasFillings)
{
IFCAnyHandle relatedFillingElement = IFCAnyHandleUtil.GetInstanceAttribute(hasFilling, "RelatedBuildingElement");
if (IFCAnyHandleUtil.IsNullOrHasNoValue(relatedFillingElement))
{
continue;
}
IFCEntity filledByElement;
IFCImportFile.TheFile.EntityMap.TryGetValue(relatedFillingElement.StepId, out filledByElement);
if (filledByElement == null)
{
FilledByElement = IFCElement.ProcessIFCElement(relatedFillingElement);
}
else
{
FilledByElement = filledByElement as IFCElement;
}
FilledByElement.FillsOpening = this;
break;
}
}
}
/// <summary>
/// Processes an IFCElementComponent object.
/// </summary>
/// <param name="ifcElementComponent">The IfcElementComponent handle.</param>
/// <returns>The IFCElementComponent object.</returns>
/// <remarks>IFCBuildingElementPart has changed from a subtype of the abstract IFCBuildingElement to IFCElementComponent from IFC2x3 to IFC4.
/// Instead of having different parents, we will keep IFCBuildingElementPart as a child of IFCBuildingElement. This means, though, that
/// this function can only return an IFCElement, the (normally) abstract parent of each.</remarks>
public static IFCElement ProcessIFCElementComponent(IFCAnyHandle ifcElementComponent)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcElementComponent))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcElementComponent);
return(null);
}
IFCEntity elementComponent;
IFCImportFile.TheFile.EntityMap.TryGetValue(ifcElementComponent.StepId, out elementComponent);
if (elementComponent != null)
{
return(elementComponent as IFCElement);
}
IFCElement newIFCElementComponent = null;
// other subclasses not handled yet.
if (IFCImportFile.TheFile.SchemaVersionAtLeast(IFCSchemaVersion.IFC4Obsolete) && IFCAnyHandleUtil.IsValidSubTypeOf(ifcElementComponent, IFCEntityType.IfcBuildingElementPart))
{
newIFCElementComponent = IFCBuildingElementPart.ProcessIFCBuildingElementPart(ifcElementComponent);
}
else
{
newIFCElementComponent = new IFCElementComponent(ifcElementComponent);
}
return(newIFCElementComponent);
}
private IList <GeometryObject> GetOrCloneGeometry(Document doc, IFCObjectDefinition objectDefinition)
{
if (!(objectDefinition is IFCBuildingElementPart))
{
return(objectDefinition.CreatedGeometry);
}
// In the case of IFCBuildingElementPart, we want the container to have a copy of the geometry in the category of the parent,
// as otherwise the geometry will be controlled by default by the Parts category instead of the parent category.
IList <IFCSolidInfo> clonedGeometry = IFCElement.CloneElementGeometry(doc, objectDefinition as IFCProduct, this, false);
if (clonedGeometry == null)
{
return(null);
}
IList <GeometryObject> geomObjs = new List <GeometryObject>();
foreach (IFCSolidInfo solid in clonedGeometry)
{
geomObjs.Add(solid.GeometryObject);
}
return(geomObjs);
}
/// <summary>
/// Processes IfcOpeningElement attributes.
/// </summary>
/// <param name="ifcOpeningElement">The IfcOpeningElement handle.</param>
protected override void Process(IFCAnyHandle ifcOpeningElement)
{
base.Process(ifcOpeningElement);
ICollection<IFCAnyHandle> hasFillings = IFCAnyHandleUtil.GetAggregateInstanceAttribute<List<IFCAnyHandle>>(ifcOpeningElement, "HasFillings");
if (hasFillings != null)
{
// Assume that there is only one filling for the opening, and take first found.
foreach (IFCAnyHandle hasFilling in hasFillings)
{
IFCAnyHandle relatedFillingElement = IFCAnyHandleUtil.GetInstanceAttribute(hasFilling, "RelatedBuildingElement");
if (IFCAnyHandleUtil.IsNullOrHasNoValue(relatedFillingElement))
continue;
IFCEntity filledByElement;
IFCImportFile.TheFile.EntityMap.TryGetValue(relatedFillingElement.StepId, out filledByElement);
if (filledByElement == null)
FilledByElement = IFCElement.ProcessIFCElement(relatedFillingElement);
else
FilledByElement = filledByElement as IFCElement;
FilledByElement.FillsOpening = this;
break;
}
}
}
/// <summary>
/// Processes an IfcElement object.
/// </summary>
/// <param name="ifcElement">The IfcElement handle.</param>
/// <returns>The IFCElement object.</returns>
public static IFCElement ProcessIFCElement(IFCAnyHandle ifcElement)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcElement))
{
IFCImportFile.TheLog.LogNullError(IFCEntityType.IfcElement);
return(null);
}
IFCEntity cachedIFCElement;
IFCImportFile.TheFile.EntityMap.TryGetValue(ifcElement.StepId, out cachedIFCElement);
if (cachedIFCElement != null)
{
return(cachedIFCElement as IFCElement);
}
IFCElement newIFCElement = null;
// other subclasses not handled yet!
if (IFCAnyHandleUtil.IsSubTypeOf(ifcElement, IFCEntityType.IfcFeatureElement))
{
newIFCElement = IFCFeatureElement.ProcessIFCFeatureElement(ifcElement);
}
else
{
newIFCElement = new IFCElement(ifcElement);
}
return(newIFCElement);
}
/// <summary>
/// Create a copying of the geometry of an entity with a different graphics style.
/// </summary>
/// <param name="doc">The document.</param>
/// <param name="original">The IFCProduct we are partially copying.</param>
/// <param name="parentEntity">The IFCObjectDefinition we are going to add the geometry to.</param>
/// <param name="cloneParentMaterial">Determine whether to use the one material of the parent entity, if it exists and is unique.</param>
/// <returns>The list of geometries created with a new category and possibly material.</returns>
public static IList <IFCSolidInfo> CloneElementGeometry(Document doc, IFCProduct original, IFCObjectDefinition parentEntity, bool cloneParentMaterial)
{
using (TemporaryDisableLogging disableLogging = new TemporaryDisableLogging())
{
IFCElement clone = new IFCElement();
// Note that the GlobalId is left to null here; this allows us to later decide not to create a DirectShape for the result.
// Get the ObjectLocation and ProductRepresentation from the original entity, which is all we need to create geometry.
clone.ObjectLocation = original.ObjectLocation;
clone.ProductRepresentation = original.ProductRepresentation;
clone.MaterialSelect = original.MaterialSelect;
// Get the EntityType and PredefinedType from the parent to ensure that it "matches" the category and graphics style of the parent.
clone.EntityType = parentEntity.EntityType;
clone.PredefinedType = parentEntity.PredefinedType;
if (cloneParentMaterial)
{
// This will only work if the parent entity has one material.
IFCMaterial parentMaterial = parentEntity.GetTheMaterial();
if (parentMaterial != null)
{
clone.MaterialSelect = parentMaterial;
}
}
IList <GeometryObject> geomObjs = new List <GeometryObject>();
CreateElement(doc, clone);
return(clone.Solids);
}
}
/// <summary>
/// Gets the host of a hosted element, if any.
/// </summary>
/// <param name="hostedElement">The hosted element.</param>
/// <returns>The host, or null.</returns>
static public IFCElement GetHost(IFCElement hostedElement)
{
if (hostedElement == null)
return null;
IFCFeatureElementSubtraction fillsOpening = hostedElement.FillsOpening;
if (fillsOpening == null)
return null;
return fillsOpening.VoidsElement;
}
/// <summary>
/// Post-process IfcPort attributes.
/// </summary>
public override void PostProcess()
{
base.PostProcess();
// Force ContainedIn, ConnectedFrom and ConnectedTo to be created in the respective getters.
IFCElement containedIn = ContainedIn;
IFCPort connectedFrom = ConnectedFrom;
IFCPort connectedTo = ConnectedTo;
}
/// <summary>
/// Processes an IfcProduct object.
/// </summary>
/// <param name="ifcProduct">The IfcProduct handle.</param>
/// <returns>The IFCProduct object.</returns>
public static IFCProduct ProcessIFCProduct(IFCAnyHandle ifcProduct)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcProduct))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcProduct);
return(null);
}
try
{
IFCEntity cachedProduct;
if (IFCImportFile.TheFile.EntityMap.TryGetValue(ifcProduct.StepId, out cachedProduct))
{
return(cachedProduct as IFCProduct);
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcProduct, IFCEntityType.IfcSpatialStructureElement))
{
return(IFCSpatialStructureElement.ProcessIFCSpatialStructureElement(ifcProduct));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcProduct, IFCEntityType.IfcElement))
{
return(IFCElement.ProcessIFCElement(ifcProduct));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcProduct, IFCEntityType.IfcGrid))
{
return(IFCGrid.ProcessIFCGrid(ifcProduct));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcProduct, IFCEntityType.IfcProxy))
{
return(IFCProxy.ProcessIFCProxy(ifcProduct));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcProduct, IFCEntityType.IfcDistributionPort))
{
return(IFCDistributionPort.ProcessIFCDistributionPort(ifcProduct));
}
}
catch (Exception ex)
{
HandleError(ex.Message, ifcProduct, true);
return(null);
}
Importer.TheLog.LogUnhandledSubTypeError(ifcProduct, IFCEntityType.IfcProduct, false);
return(null);
}
/// <summary>
/// Creates or populates Revit element params based on the information contained in this class.
/// </summary>
/// <param name="doc">The document.</param>
/// <param name="element">The element.</param>
protected override void CreateParametersInternal(Document doc, Element element)
{
base.CreateParametersInternal(doc, element);
if (element != null)
{
Category category = IFCPropertySet.GetCategoryForParameterIfValid(element, Id);
// Set "Tag" parameter.
string ifcTag = Tag;
if (!string.IsNullOrWhiteSpace(ifcTag))
{
IFCPropertySet.AddParameterString(doc, element, category, "IfcTag", ifcTag, Id);
}
IFCFeatureElementSubtraction ifcFeatureElementSubtraction = FillsOpening;
if (ifcFeatureElementSubtraction != null)
{
IFCElement ifcElement = ifcFeatureElementSubtraction.VoidsElement;
if (ifcElement != null)
{
string ifcContainerName = ifcElement.Name;
IFCPropertySet.AddParameterString(doc, element, category, "IfcContainedInHost", ifcContainerName, Id);
}
}
// Create two parameters for each port: one for name, and one for GUID.
// Note that Ports will never be null, as it is initialized the first time it is accessed.
int numPorts = 0;
foreach (IFCPort port in Ports)
{
string name = port.Name;
string guid = port.GlobalId;
if (!string.IsNullOrWhiteSpace(name))
{
string parameterName = "IfcElement HasPorts Name " + ((numPorts == 0) ? "" : (numPorts + 1).ToString());
IFCPropertySet.AddParameterString(doc, element, category, parameterName, name, Id);
}
if (!string.IsNullOrWhiteSpace(guid))
{
string parameterName = "IfcElement HasPorts IfcGUID " + ((numPorts == 0) ? "" : (numPorts + 1).ToString());
IFCPropertySet.AddParameterString(doc, element, category, parameterName, guid, Id);
}
numPorts++;
}
}
}
/// <summary>
/// Create a simplified copy of a IFCFeatureElement, intended explicitly for the purpose of voiding a particular IFCElement.
/// </summary>
/// <param name="original">The IFCFeatureElement we are partially copying.</param>
/// <param name="parentEntity">The IFCElement we are voiding.</param>
/// <returns>A new IFCFeatureElement that is a minimal copy of original with influence by parentEntity.</returns>
public static IFCFeatureElement CreateOpeningClone(IFCFeatureElement original, IFCElement parentEntity)
{
IFCFeatureElement clone = new IFCFeatureElement();
// Note that the GlobalId is left to null here; this allows us to later decide not to create a DirectShape for the result.
// Get the ObjectLocation and ProductRepresentation from the original entity, which is all we need to create geometry.
clone.ObjectLocation = original.ObjectLocation;
clone.ProductRepresentation = original.ProductRepresentation;
// Get the EntityType and ShapeType from the parent to ensure that it "matches" the category and graphics style of the parent.
clone.EntityType = parentEntity.EntityType;
clone.ShapeType = parentEntity.ShapeType;
// Copy the material of the parent entity to try to match the color of the opening faces.
// This will work nicely if the parent entity is one material.
IFCMaterial parentMaterial = parentEntity.GetTheMaterial();
if (parentMaterial != null)
clone.MaterialSelect = parentMaterial;
return clone;
}
/// <summary>
/// Create a simplified copy of a IFCFeatureElement, intended explicitly for the purpose of voiding a particular IFCElement.
/// </summary>
/// <param name="original">The IFCFeatureElement we are partially copying.</param>
/// <param name="parentEntity">The IFCElement we are voiding.</param>
/// <returns>A new IFCFeatureElement that is a minimal copy of original with influence by parentEntity.</returns>
public static IFCFeatureElement CreateOpeningClone(IFCFeatureElement original, IFCElement parentEntity)
{
IFCFeatureElement clone = new IFCFeatureElement();
// Note that the GlobalId is left to null here; this allows us to later decide not to create a DirectShape for the result.
// Get the ObjectLocation and ProductRepresentation from the original entity, which is all we need to create geometry.
clone.ObjectLocation = original.ObjectLocation;
clone.ProductRepresentation = original.ProductRepresentation;
// Get the EntityType and ShapeType from the parent to ensure that it "matches" the category and graphics style of the parent.
clone.EntityType = parentEntity.EntityType;
clone.ShapeType = parentEntity.ShapeType;
// Copy the material of the parent entity to try to match the color of the opening faces.
// This will work nicely if the parent entity is one material.
IFCMaterial parentMaterial = parentEntity.GetTheMaterial();
if (parentMaterial != null)
{
clone.MaterialSelect = parentMaterial;
}
return(clone);
}
/// <summary>
/// Create a copying of the geometry of an entity with a different graphics style.
/// </summary>
/// <param name="doc">The document.</param>
/// <param name="original">The IFCProduct we are partially copying.</param>
/// <param name="parentEntity">The IFCObjectDefinition we are going to add the geometry to.</param>
/// <param name="cloneParentMaterial">Determine whether to use the one material of the parent entity, if it exists and is unique.</param>
/// <returns>The list of geometries created with a new category and possibly material.</returns>
public static IList<IFCSolidInfo> CloneElementGeometry(Document doc, IFCProduct original, IFCObjectDefinition parentEntity, bool cloneParentMaterial)
{
using (TemporaryDisableLogging disableLogging = new TemporaryDisableLogging())
{
IFCElement clone = new IFCElement();
// Note that the GlobalId is left to null here; this allows us to later decide not to create a DirectShape for the result.
// Get the ObjectLocation and ProductRepresentation from the original entity, which is all we need to create geometry.
clone.ObjectLocation = original.ObjectLocation;
clone.ProductRepresentation = original.ProductRepresentation;
clone.MaterialSelect = original.MaterialSelect;
// Get the EntityType and PredefinedType from the parent to ensure that it "matches" the category and graphics style of the parent.
clone.EntityType = parentEntity.EntityType;
clone.PredefinedType = parentEntity.PredefinedType;
if (cloneParentMaterial)
{
// This will only work if the parent entity has one material.
IFCMaterial parentMaterial = parentEntity.GetTheMaterial();
if (parentMaterial != null)
clone.MaterialSelect = parentMaterial;
}
IList<GeometryObject> geomObjs = new List<GeometryObject>();
CreateElement(doc, clone);
return clone.Solids;
}
}
/// <summary>
/// Creates or populates Revit elements based on the information contained in this class.
/// </summary>
/// <param name="doc">The document.</param>
protected override void Create(Document doc)
{
bool preventInstances = false;
IFCElement element = this as IFCElement;
if (element != null)
{
preventInstances = this is IFCOpeningElement;
foreach (IFCFeatureElement opening in element.Openings)
{
try
{
preventInstances = true;
// Create the actual Revit element based on the IFCFeatureElement here.
ElementId openingId = CreateElement(doc, opening);
// This gets around the issue that the Boolean operation between the void(s) in the IFCFeatureElement and
// the solid(s) in the IFCElement may use the Graphics Style of the voids in the resulting Solid(s), meaning
// that some faces may disappear when we turn off the visibility of IfcOpeningElements.
IList <IFCSolidInfo> voids = IFCElement.CloneElementGeometry(doc, opening, this, true);
if (voids != null)
{
foreach (IFCSolidInfo voidGeom in voids)
{
IFCVoidInfo voidInfo = new IFCVoidInfo(voidGeom);
if (!Importer.TheProcessor.ApplyTransforms)
{
// If we aren't applying transforms, then the Voids and Solids will be
// in different coordinate spaces, so we need the transform of the
// void, so we can transform it into the Solid coordinate space
voidInfo.TotalTransform = opening?.ObjectLocation?.TotalTransform;
}
Voids.Add(voidInfo);
}
}
}
catch (Exception ex)
{
Importer.TheLog.LogError(opening.Id, ex.Message, false);
}
}
}
if (HasValidTopLevelGeometry())
{
using (IFCImportShapeEditScope shapeEditScope = IFCImportShapeEditScope.Create(doc, this))
{
shapeEditScope.GraphicsStyleId = GraphicsStyleId;
shapeEditScope.CategoryId = CategoryId;
shapeEditScope.PreventInstances = preventInstances;
// The name can be added as well. but it is usually less useful than 'oid'
string myId = GlobalId; // + "(" + Name + ")";
Transform lcs = IFCImportFile.TheFile.IFCProject.WorldCoordinateSystem;
if (lcs == null)
{
lcs = (ObjectLocation != null) ? ObjectLocation.TotalTransform : Transform.Identity;
}
else if (ObjectLocation != null)
{
lcs = lcs.Multiply(ObjectLocation.TotalTransform);
}
// If we are not applying transforms to the geometry, then pass in the identity matrix.
// Lower down this method we then pass lcs to the consumer element, so that it can apply
// the transform as required.
Transform transformToUse = Importer.TheProcessor.ApplyTransforms ? lcs : Transform.Identity;
ProductRepresentation.CreateProductRepresentation(shapeEditScope, transformToUse, transformToUse, myId);
int numSolids = Solids.Count;
// Attempt to cut each solid with each void.
for (int solidIdx = 0; solidIdx < numSolids; solidIdx++)
{
if (!CutSolidByVoids(Solids[solidIdx]))
{
Solids.RemoveAt(solidIdx);
solidIdx--;
numSolids--;
}
}
bool addedCurves = shapeEditScope.AddPlanViewCurves(FootprintCurves, Id);
if ((numSolids > 0 || addedCurves))
{
if (GlobalId != null)
{
// If the GlobalId is null, this is a fake IfcProduct that we don't want to create into a DirectShape, or
// add to the caches in any way. We only wanted to gather its geometry.
DirectShape shape = Importer.TheCache.UseElementByGUID <DirectShape>(doc, GlobalId);
if (shape == null)
{
shape = IFCElementUtil.CreateElement(doc, CategoryId, GlobalId, null, Id, EntityType);
}
List <GeometryObject> directShapeGeometries = new List <GeometryObject>();
foreach (IFCSolidInfo geometryObject in Solids)
{
// We need to check if the solid created is good enough for DirectShape. If not, warn and use a fallback Mesh.
GeometryObject currObject = geometryObject.GeometryObject;
if (currObject is Solid)
{
Solid solid = currObject as Solid;
if (!shape.IsValidGeometry(solid))
{
Importer.TheLog.LogWarning(Id, "Couldn't create valid solid, reverting to mesh.", false);
directShapeGeometries.AddRange(IFCGeometryUtil.CreateMeshesFromSolid(solid));
currObject = null;
}
}
if (currObject != null)
{
directShapeGeometries.Add(currObject);
}
}
// We will use the first IfcTypeObject id, if it exists. In general, there should be 0 or 1.
IFCTypeObject typeObjectToUse = null;
foreach (IFCTypeObject typeObject in TypeObjects)
{
if (typeObject.IsValidForCreation && typeObject.CreatedElementId != ElementId.InvalidElementId)
{
typeObjectToUse = typeObject;
break;
}
}
if (!Importer.TheProcessor.PostProcessProduct(Id, typeObjectToUse?.Id, lcs,
directShapeGeometries))
{
if (shape != null)
{
shape.SetShape(directShapeGeometries);
shapeEditScope.SetPlanViewRep(shape);
if (typeObjectToUse != null && typeObjectToUse.CreatedElementId != ElementId.InvalidElementId)
{
shape.SetTypeId(typeObjectToUse.CreatedElementId);
}
}
}
PresentationLayerNames.UnionWith(shapeEditScope.PresentationLayerNames);
CreatedElementId = shape.Id;
CreatedGeometry = directShapeGeometries;
}
}
}
}
else
{
if (this is IFCElement || this is IFCGrid)
{
IList <IFCEntity> visitedEntities = new List <IFCEntity>();
visitedEntities.Add(this);
if (!HasValidSubElementGeometry(visitedEntities))
{
// We will not warn if this is an IfcSpatialStructureElement; those aren't expected to have their own geometry.
Importer.TheLog.LogWarning(Id, "There is no valid geometry for this " + EntityType.ToString() + "; entity will not be built.", false);
}
}
}
base.Create(doc);
}
/// <summary>
/// Creates or populates Revit elements based on the information contained in this class.
/// </summary>
/// <param name="doc">The document.</param>
protected override void Create(Document doc)
{
bool preventInstances = false;
IFCElement element = this as IFCElement;
if (element != null)
{
IFCOpeningElement openingElement = element as IFCOpeningElement;
if (openingElement != null)
{
preventInstances = true;
}
foreach (IFCFeatureElement opening in element.Openings)
{
try
{
preventInstances = true;
// Create the actual Revit element based on the IFCFeatureElement here.
ElementId openingId = CreateElement(doc, opening);
// This gets around the issue that the Boolean operation between the void(s) in the IFCFeatureElement and
// the solid(s) in the IFCElement may use the Graphics Style of the voids in the resulting Solid(s), meaning
// that some faces may disappear when we turn off the visibility of IfcOpeningElements.
IList <IFCSolidInfo> voids = IFCElement.CloneElementGeometry(doc, opening, this, true);
if (voids != null)
{
foreach (IFCSolidInfo voidGeom in voids)
{
Voids.Add(voidGeom);
}
}
}
catch (Exception ex)
{
Importer.TheLog.LogError(opening.Id, ex.Message, false);
}
}
}
if (HasValidTopLevelGeometry())
{
using (IFCImportShapeEditScope shapeEditScope = IFCImportShapeEditScope.Create(doc, this))
{
shapeEditScope.GraphicsStyleId = GraphicsStyleId;
shapeEditScope.CategoryId = CategoryId;
shapeEditScope.PreventInstances = preventInstances;
// The name can be added as well. but it is usually less useful than 'oid'
string myId = GlobalId; // + "(" + Name + ")";
Transform lcs = IFCImportFile.TheFile.IFCProject.WorldCoordinateSystem;
if (lcs == null)
{
lcs = (ObjectLocation != null) ? ObjectLocation.TotalTransform : Transform.Identity;
}
else if (ObjectLocation != null)
{
lcs = lcs.Multiply(ObjectLocation.TotalTransform);
}
ProductRepresentation.CreateProductRepresentation(shapeEditScope, lcs, lcs, myId);
int numSolids = Solids.Count;
int numVoids = Voids.Count;
if ((numSolids > 0) && (numVoids > 0))
{
// This may be different than before, with the addition of solids from FamilyInstances.
numSolids = Solids.Count;
// Attempt to cut each solid with each void.
for (int solidIdx = 0; solidIdx < numSolids; solidIdx++)
{
// We only cut body representation items.
if (Solids[solidIdx].RepresentationType != IFCRepresentationIdentifier.Body)
{
continue;
}
if (!(Solids[solidIdx].GeometryObject is Solid))
{
string typeName = (Solids[solidIdx].GeometryObject is Mesh) ? "mesh" : "instance";
Importer.TheLog.LogError(Id, "Can't cut " + typeName + " geometry, ignoring " + numVoids + " void(s).", false);
continue;
}
for (int voidIdx = 0; voidIdx < numVoids; voidIdx++)
{
if (!(Voids[voidIdx].GeometryObject is Solid))
{
Importer.TheLog.LogError(Id, "Can't cut Solid geometry with a Mesh (# " + Voids[voidIdx].Id + "), ignoring.", false);
continue;
}
Solids[solidIdx].GeometryObject =
IFCGeometryUtil.ExecuteSafeBooleanOperation(Solids[solidIdx].Id, Voids[voidIdx].Id,
Solids[solidIdx].GeometryObject as Solid, Voids[voidIdx].GeometryObject as Solid,
BooleanOperationsType.Difference, null);
if ((Solids[solidIdx].GeometryObject as Solid).Faces.IsEmpty)
{
Solids.RemoveAt(solidIdx);
solidIdx--;
numSolids--;
break;
}
}
}
}
bool addedCurves = shapeEditScope.AddPlanViewCurves(FootprintCurves, Id);
if ((numSolids > 0 || addedCurves))
{
if (GlobalId != null)
{
// If the GlobalId is null, this is a fake IfcProduct that we don't want to create into a DirectShape, or
// add to the caches in any way. We only wanted to gather its geometry.
DirectShape shape = Importer.TheCache.UseElementByGUID <DirectShape>(doc, GlobalId);
if (shape == null)
{
shape = IFCElementUtil.CreateElement(doc, CategoryId, GlobalId, null, Id);
}
List <GeometryObject> directShapeGeometries = new List <GeometryObject>();
foreach (IFCSolidInfo geometryObject in Solids)
{
// We need to check if the solid created is good enough for DirectShape. If not, warn and use a fallback Mesh.
GeometryObject currObject = geometryObject.GeometryObject;
if (currObject is Solid)
{
Solid solid = currObject as Solid;
if (!shape.IsValidGeometry(solid))
{
Importer.TheLog.LogWarning(Id, "Couldn't create valid solid, reverting to mesh.", false);
directShapeGeometries.AddRange(IFCGeometryUtil.CreateMeshesFromSolid(solid));
currObject = null;
}
}
if (currObject != null)
{
directShapeGeometries.Add(currObject);
}
}
// We will use the first IfcTypeObject id, if it exists. In general, there should be 0 or 1.
ElementId typeId = ElementId.InvalidElementId;
foreach (IFCTypeObject typeObject in TypeObjects)
{
if (typeObject.IsValidForCreation && typeObject.CreatedElementId != ElementId.InvalidElementId)
{
typeId = typeObject.CreatedElementId;
break;
}
}
shape.SetShape(directShapeGeometries);
shapeEditScope.SetPlanViewRep(shape);
if (typeId != ElementId.InvalidElementId)
{
shape.SetTypeId(typeId);
}
PresentationLayerNames.UnionWith(shapeEditScope.PresentationLayerNames);
CreatedElementId = shape.Id;
CreatedGeometry = directShapeGeometries;
}
}
}
}
else
{
if (this is IFCElement || this is IFCGrid)
{
IList <IFCEntity> visitedEntities = new List <IFCEntity>();
visitedEntities.Add(this);
if (!HasValidSubElementGeometry(visitedEntities))
{
// We will not warn if this is an IfcSpatialStructureElement; those aren't expected to have their own geometry.
Importer.TheLog.LogWarning(Id, "There is no valid geometry for this " + EntityType.ToString() + "; entity will not be built.", false);
}
}
}
base.Create(doc);
}
/// <summary>
/// Processes an IfcElement object.
/// </summary>
/// <param name="ifcElement">The IfcElement handle.</param>
/// <returns>The IFCElement object.</returns>
public static IFCElement ProcessIFCElement(IFCAnyHandle ifcElement)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcElement))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcElement);
return null;
}
IFCEntity cachedIFCElement;
IFCImportFile.TheFile.EntityMap.TryGetValue(ifcElement.StepId, out cachedIFCElement);
if (cachedIFCElement != null)
return (cachedIFCElement as IFCElement);
IFCElement newIFCElement = null;
// other subclasses not handled yet.
if (IFCAnyHandleUtil.IsSubTypeOf(ifcElement, IFCEntityType.IfcBuildingElement))
newIFCElement = IFCBuildingElement.ProcessIFCBuildingElement(ifcElement);
else if (IFCAnyHandleUtil.IsSubTypeOf(ifcElement, IFCEntityType.IfcFeatureElement))
newIFCElement = IFCFeatureElement.ProcessIFCFeatureElement(ifcElement);
else if (IFCAnyHandleUtil.IsSubTypeOf(ifcElement, IFCEntityType.IfcElementAssembly))
newIFCElement = IFCElementAssembly.ProcessIFCElementAssembly(ifcElement);
else if (IFCAnyHandleUtil.IsSubTypeOf(ifcElement, IFCEntityType.IfcElementComponent))
newIFCElement = IFCElementComponent.ProcessIFCElementComponent(ifcElement);
else
newIFCElement = new IFCElement(ifcElement);
return newIFCElement;
}
