[vtkusers] Selecting a subset of points out of a vtkPolyData using a sphere

[jonathan grimm]

The easiest way I'm found to do this is to maintain the original ID as a
scalar using vtkIdFilter.

On 1/4/07, Boettcher, Dr. Peter <Boettcher at kleintierklinik.uni-leipzig.de>
wrote:
>
>  I would like to select/mark the points of a polydata object which are
> lying inside a sphere. Using vtkClipper or vtkExtractGeometry gives me those
> points, however I loose the ids of the original polydata object. Is there a
> way to get those point keeping the original references so that I can do some
> calculations on the points' scalars and write them back onto the original
> polydata object? I looked at vtkCutter, however I do not see a good way
> using it for my purpose.
>
>
>
> Regards, Peter.
>
>  ------------------------------------
> Peter Böttcher, Dr med vet, DipECVS
> European Veterinary Specialist in Surgery
> Fachtierarzt für Kleintierchirurgie
> Klinik für Kleintiere
> Universität Leipzig
> An den Tierkliniken 23
> D-04103 Leipzig (Germany)
> Tel: +49-341-9738700
> Fax: +49-341-9738799
> email: boettcher at kleintierklinik.uni-leipzig.de
>
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-- 
Sometimes it's hard to tell the dancer from the dance - Corwin in CoC
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