Hi, I was trying to work with the mlab.pipeline.triangle_filter in mayavi but couldn't figure out how the method works or how to work with the returned data structure. I assume it is similar to working with the edges in the Delaunay Graph Example: http://github.enthought.com/mayavi/mayavi/auto/example_delaunay_graph.html#e... , but I would need a bit more information particular to this triangle filter. The final data structure I would like to get it the triangles in is OBJ format (triangle indices into vectors array). Thanks for any help. Martin