Is there a solution for polygons obscuring lines...?

[Louis le Grange]

Dear VTK Users

Is there a solution for the problems of polygons obscuring lines such as in
the attached bitmap?

In the current case I have tried

   Actor->GetProperty()->SetLineWidth(3);

but with the same result - improving a bit but not giving nice and crisp
look for the mesh lines.

Does this behaviour (see the bitmap) have anything to do with my screen
driver?

I have also received the following idea
           "use vtkTubeFilter to place polygonal tubes around lines"

Is this a good alternative for obtaining good resolution for grid lines?
Would this be very expensive when there are many grid lines?

Thanks in advance, Louis
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