/// <summary>
/// Create geometry for a particular representation item.
/// </summary>
/// <param name="shapeEditScope">The geometry creation scope.</param>
/// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
/// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
/// <param name="guid">The guid of an element for which represntation is being created.</param>
protected override void CreateShapeInternal(IFCImportShapeEditScope shapeEditScope, Transform lcs, Transform scaledLcs, string guid)
{
if (shapeEditScope.BuilderType != IFCShapeBuilderType.TessellatedShapeBuilder)
{
throw new InvalidOperationException("Currently BrepBuilder is only used to support IFCAdvancedFace");
}
base.CreateShapeInternal(shapeEditScope, lcs, scaledLcs, guid);
// we would only be in this code if we are not processing and IfcAdvancedBrep, since IfcAdvancedBrep must have IfcAdvancedFace
if (shapeEditScope.BuilderScope == null)
{
throw new InvalidOperationException("BuilderScope has not been initialized");
}
TessellatedShapeBuilderScope tsBuilderScope = shapeEditScope.BuilderScope as TessellatedShapeBuilderScope;
bool addFace = true;
bool canTriangulate = (Bounds.Count == 1);
ElementId materialId = GetMaterialElementId(shapeEditScope);
// We can only really triangulate faces with one boundary with 4 vertices,
// but we don't really know how many vertices the boundary has until later.
// So this is just the first block. Later, we can try to extend to generic
// polygons.
tsBuilderScope.StartCollectingFace(materialId, canTriangulate);
foreach (IFCFaceBound faceBound in Bounds)
{
faceBound.CreateShape(shapeEditScope, lcs, scaledLcs, guid);
// If we can't create the outer face boundary, we will abort the creation of this face.
// In that case, return, unless we can triangulate it.
if (!tsBuilderScope.HaveActiveFace())
{
addFace = false;
break;
}
}
tsBuilderScope.StopCollectingFace(addFace, false);
IList <List <XYZ> > delayedFaceBoundaries = CreateTriangulation(tsBuilderScope.DelayedFaceBoundary);
if (delayedFaceBoundaries != null)
{
bool extraFace = false;
foreach (List <XYZ> delayedBoundary in delayedFaceBoundaries)
{
bool addTriangulatedFace = true;
tsBuilderScope.StartCollectingFace(GetMaterialElementId(shapeEditScope), false);
if (!tsBuilderScope.AddLoopVertices(Id, delayedBoundary))
{
Importer.TheLog.LogComment(Id, "Bounded loop plane is slightly non-planar, couldn't triangulate.", false);
addTriangulatedFace = false;
}
tsBuilderScope.StopCollectingFace(addTriangulatedFace, extraFace);
extraFace = true;
}
}
}
/// <summary>
/// Create geometry for a particular representation item.
/// </summary>
/// <param name="shapeEditScope">The geometry creation scope.</param>
/// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
/// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
/// <param name="guid">The guid of an element for which represntation is being created.</param>
protected override void CreateShapeInternal(IFCImportShapeEditScope shapeEditScope, Transform lcs, Transform scaledLcs, string guid)
{
if (shapeEditScope.BuilderType != IFCShapeBuilderType.TessellatedShapeBuilder)
{
throw new InvalidOperationException("Currently BrepBuilder is only used to support IFCAdvancedFace");
}
base.CreateShapeInternal(shapeEditScope, lcs, scaledLcs, guid);
// we would only be in this code if we are not processing and IfcAdvancedBrep, since IfcAdvancedBrep must have IfcAdvancedFace
if (shapeEditScope.BuilderScope == null)
{
throw new InvalidOperationException("BuilderScope has not been initialized");
}
TessellatedShapeBuilderScope tsBuilderScope = shapeEditScope.BuilderScope as TessellatedShapeBuilderScope;
tsBuilderScope.StartCollectingFace(GetMaterialElementId(shapeEditScope));
foreach (IFCFaceBound faceBound in Bounds)
{
faceBound.CreateShape(shapeEditScope, lcs, scaledLcs, guid);
// If we can't create the outer face boundary, we will abort the creation of this face. In that case, return.
if (!tsBuilderScope.HaveActiveFace())
{
tsBuilderScope.AbortCurrentFace();
return;
}
}
tsBuilderScope.StopCollectingFace();
}