Fixed grouped transforms in vHelix parser

mrdna/readers/polygon_mesh.py

@@ -76,30 +76,16 @@ class MayaObj():
 
     def get_position(self):
         if self.parent is not None:
-            return self.parent._transform_child_position(self.position)
+            return self.parent.get_orientation().dot(self.position) + self.parent.get_position()
         else:
             return self.position
 
     def get_orientation(self):
         if self.parent is not None:
-            return self.parent._transform_child_orientation(self.orientation)
+            return self.parent.get_orientation().dot(self.orientation)
         else:
             return self.orientation
 
-    def _transform_child_position(self, position):
-        if self.parent is not None:
-            p = self.parent._transform_child_position( position )
-        else:
-            p = position
-        return self.orientation.dot(p)+self.position
-
-    def _transform_child_orientation(self, orientation):
-        if self.parent is not None:
-            o = self.parent._transform_child_orientation( orientation )
-        else:
-            o = orientation
-        return self.orientation.dot(o)
-
     def get_full_name(self):
         ret = self.name
         if self.parent is not None: