[vtkusers] Is there any way to preserve some of the original points thru decimation?

[Mathieu Malaterre]

Chris,

	No I don't think there is such options in vtkDecimate* class. What do 
you call a subset ? Any kind or a particular one? Such as boundary 
vertex ? If so then yes you can 'freeze' the boundary vertex 
(BoundaryVertexDeletionOff).

	Otherwise you'll have to look at the code to implement such 
enhancement. How do you plan to pass such arbitrary points ? User 
interaction ?

Thanks
Mathieu

Chris Zakrewsky wrote:
> Hi all,
> 
> I send a message a few days ago on this subject but I've got no
> response yet and I am very keen to find out the answer. A simple
> pointer would do.
> 
>     Is there any way to preserve some arbitrary subset of vertices
>     (from a mesh) unchanged thru the decimation process? (i.e. freeze
>     some vertices, while the rest can be decimated by vtkDecimate or
>     alike)
> 
> Is this capability available in VTK at all?
> 
> 
> Very best regards,
> /Chris Zakrewsky
> http://www.ustation.se
> Sweden
> 
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