Merge branch 'master' into v0.6.0

src/ifcgeom/IfcGeomShapes.cpp

@@ -842,25 +842,33 @@ bool IfcGeom::Kernel::convert(const IfcSchema::IfcCsgSolid* l, TopoDS_Shape& sha
 
 bool IfcGeom::Kernel::convert(const IfcSchema::IfcCurveBoundedPlane* l, TopoDS_Shape& face) {
 	gp_Pln pln;
-	IfcGeom::Kernel::convert(l->BasisSurface(), pln);
+	if (!IfcGeom::Kernel::convert(l->BasisSurface(), pln)) {
+		return false;
+	}
 
 	gp_Trsf trsf;
 	trsf.SetTransformation(pln.Position(), gp::XOY());
 	
 	TopoDS_Wire outer;
-	convert_wire(l->OuterBoundary(), outer);
+	if (!convert_wire(l->OuterBoundary(), outer)) {
+		return false;
+	}
 	
-	BRepBuilderAPI_MakeFace mf (outer);
+	BRepBuilderAPI_MakeFace mf(outer);
-	mf.Add(outer);
+
+	if (!mf.IsDone() || mf.Shape().IsNull()) {
+		Logger::Error("Invalid outer boundary:", l->OuterBoundary());
+		return false;
+	}
 	
 	IfcSchema::IfcCurve::list::ptr boundaries = l->InnerBoundaries();
 
 	for (IfcSchema::IfcCurve::list::it it = boundaries->begin(); it != boundaries->end(); ++it) {
 		TopoDS_Wire inner;
-		convert_wire(*it, inner);
+		if (convert_wire(*it, inner)) {
-		
 			mf.Add(inner);
 		}
+	}
 
 	ShapeFix_Shape sfs(mf.Face());
 	sfs.Perform();

src/ifcgeom_schema_agnostic/Kernel.cpp

@@ -177,6 +177,15 @@ std::map<std::string, IfcUtil::IfcBaseEntity*> IfcGeom::Kernel::get_layers(IfcUt
 }
 
 bool IfcGeom::Kernel::is_manifold(const TopoDS_Shape& a) {
+	if (a.ShapeType() == TopAbs_COMPOUND) {
+		TopoDS_Iterator it(a);
+		for (; it.More(); it.Next()) {
+			if (!is_manifold(it.Value())) {
+				return false;
+			}
+		}
+		return true;
+	} else {
 		TopTools_IndexedDataMapOfShapeListOfShape map;
 		TopExp::MapShapesAndAncestors(a, TopAbs_EDGE, TopAbs_FACE, map);
 
@@ -187,4 +196,5 @@ bool IfcGeom::Kernel::is_manifold(const TopoDS_Shape& a) {
 		}
 
 		return true;
+	}
 }