/// <summary>
/// Processes IfcRelDefinesByType.
/// </summary>
/// <param name="ifcRelDefinesByType">The IfcRelDefinesByType handle.</param>
void ProcessIFCRelDefinesByType(IFCAnyHandle ifcRelDefinesByType)
{
IFCAnyHandle typeObject = IFCAnyHandleUtil.GetInstanceAttribute(ifcRelDefinesByType, "RelatingType");
if (IFCAnyHandleUtil.IsNullOrHasNoValue(typeObject))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcTypeObject);
return;
}
if (!IFCAnyHandleUtil.IsSubTypeOf(typeObject, IFCEntityType.IfcTypeObject))
{
Importer.TheLog.LogUnhandledSubTypeError(typeObject, IFCEntityType.IfcTypeObject, false);
return;
}
IFCTypeObject ifcTypeObject = IFCTypeObject.ProcessIFCTypeObject(typeObject);
if (ifcTypeObject != null)
TypeObjects.Add(ifcTypeObject);
}
/// <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);
}
