if (aShapesOp->_is_nil())
return GEOM::GEOM_Object::_nil();
GEOM::GEOM_Object_wrap subShape = aShapesOp->GetSubShape (theMainShape,theID);
if (aShapesOp->_is_nil())
return GEOM::GEOM_Object::_nil();
GEOM::GEOM_Object_wrap subShape = aShapesOp->GetSubShape (theMainShape,theID);