[vtkusers] reducing number of points and polygons in polydata

[Sylvain Jaume]

try PreserveTopologyOff in vtkDecimate
or use vtkQuadricClustering.

Sylvain

On Mon, 1 Oct 2001, Sarika Paranjape wrote:

> 
> Hi all,
> 
> I am using Marching Cubes to extract skin from visible human data and
> using the polydata as an input to fem program. The number of points for
> 10 slices is over 50000 points and 75000 polygons.I want to reduce these
> number of points as well as the number of polygons. I used vtkDecimate
> and vtkCleanPolyData. That didn't seem to help much, because it does not
> reduce the data after some point. Is there any way to control number of
> points generated by marching cubes or is there any way to decimate the
> number of points as much as we want?
> 
> my pipeline goes somewhat like this:
> 
> vtkImageReader=>vtkMarchingCubes=>vtkCleanPolyData=>vtkDecimate=>vtkPolyDataMap
> er=>vtkActor... 
> 
> Any help greatly appreciated!
> 
> thanks
> 
> sarika
> 
> 
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