[vtkusers] Replacing Points in polydata mesh

[Andy Bauer]

Hi Chris,

This isn't done very often in VTK since filters aren't allowed to modify
their inputs.  That being said, you could do something like the following
if you wanted to change the coordinate location of a point:
vtkPoints* points = poly->GetPoints();
points->SetPoint();

If you wanted to change your grid topology you'll have to get depper and
modify the appropriate vtkCellArray of the polydata.

Hope this helps,
Andy

On Thu, Apr 12, 2012 at 12:03 PM, Bayliss, Chris (Chicago) <
cbayliss at gnresound.com> wrote:

> Hello Users,****
>
> ** **
>
> I am looking for a way to replace points in vtkPolyData.  I already have a
> polydata surface and I would like to drag the points on that surface to new
> locations while maintaining the existing surface.  If I create a new set of
> polydata points, I would have to reconstruct the surface, which I am having
> trouble with.  Vtksurfacereconstruction filter does not produce a
> representative surface and I cannot get vtkpowercrustsurfacereconstruction
> filter to work.****
>
> ** **
>
> I can’t seem to figure out which functions in vtkPolyData would produce
> the desired result.  Any advice would be greatly appreciated.  Any ideas on
> how to get vtkpowercrustrsurfacereconstruction filter to work would also be
> very helpful.****
>
> ** **
>
> Thanks,****
>
> ** **
>
> Chris****
>
> ** **
>
> ** **
>
> ** **
>
>
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