[vtkusers] Re: vtkDecimatePro Bug + hanging

[Dave Reed]

First, please turn off the HTML in your mail client to reduce the
size of your message when posting to mailing lists.

I can't really help you, but you need to provide more information. At
a minimum, what version of VTK are you using? Other helpful
information is your platform (Windows, Linux, etc.).

Dave


> From: "Sebastien_MARAUX" <maraux at ondim.fr>
> 
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> I experienced some problems using decimatePro:
> 
> 1. with a number of points =3D 29160, vtkDecimatePro Hangs. Is there =
> some allocation=20
> to do ?
> 
> 2. with a number of point =3D 25000 or less :
> vtkDecimatePro runs but does not produce correct
> output :
> 
>  decimation->SetInput(myPolyData);
>  decimation->PreserveTopologyOn();
>  decimation->BoundaryVertexDeletionOff();
>  decimation->SetMaximumError(0.0);
>  decimation->Update();
> 
> doed not respect 0 error, even when specified with=20
> absolute error. It keeps decimating till 10 %=20
> polygons  number target is reached even with a=20
> "not flat" set of triangles.
> 
> Setting another target percentage does affect the=20
> output.
> 
> I can produce more tests if needed.
> 
> Sebastien MARAUX