[vtk-developers] [vtkusers] Find center of polydata

[David Thompson]

Hi Laurent,

> Yes, you're right. What I was trying to find is the medial axis of the shape. Can this axis be a curve ?

In 2D it usually is a curve. In 3D it is usually a (non-manifold) surface.

> My problem is, I want to display a plane around the polydata model, but as I explained, like the green one, not the red one:
> 
> <Screen Shot 2013-03-12 at 10.45.11 AM.png>
> 
> I would like my plane to "follow" the mesh (that's why I was trying to find the medial axis, to use it as the center of my plane).

The problem is that this concept is not well-defined for all shapes. What happens with the letters X or Y, for example?

	David