- Make distinction between single shape and list of shapes

- Store shapes in std::vectors rather than TopoDS_Compounds
- Apply transformation only on triangulated meshes or when processing openings
- Store transformations in a gp_GTrsf to allow arbitrary transformations
- Support IfcCartesianTransformationOperator3DnonUniform
- TODO: Create proper class for ShapeList
- TODO: Carefully check for null pointers returned from IfcGeom::convert_shape()

src/ifcgeom/IfcRegisterConvertShapes.h

@@ -0,0 +1,8 @@
+#include "IfcRegisterUndef.h"
+#define SHAPES(T) \
+	if ( l->is(T::Class()) ) { \
+		return IfcGeom::convert((T*)l,r); \
+	}
+#include "IfcRegisterDef.h"
+
+#include "IfcRegister.h"