ZTable*         O_OBJECT
TriangleMesh*         O_OBJECT
Point*         O_OBJECT
Line*           O_OBJECT
Polyline*       O_OBJECT
Polygon*        O_OBJECT
ExPolygon*      O_OBJECT
ExPolygonCollection*    O_OBJECT
ExtrusionPath*  O_OBJECT
ExtrusionLoop*  O_OBJECT
Surface*        O_OBJECT
SurfaceCollection*      O_OBJECT

ExtrusionRole     T_UV
SurfaceType     T_UV