[vtkusers] Filter with input: vtkPolyData, output: vtkGraph

[David Doria]

On Sat, Nov 14, 2009 at 5:26 PM, David Doria
<daviddoria+vtk at gmail.com<daviddoria%2Bvtk at gmail.com>
> wrote:

> (warning - crosspost. This was on the devel list a week ago with no
> resolution).
>
> I am trying to make a filter that takes a vtkPolyData as input and produces
> a vtkGraph as output:
> http://rpi.edu/~doriad/VTK_List/vtkNearestNeighborGraph/<http://rpi.edu/%7Edoriad/VTK_List/vtkNearestNeighborGraph/>
>
> I get a bunch of these errors that make it look like I have not set an
> input:
> vtkStreamingDemandDrivenPipeline (0x89d60a0): Input port 0 of
> algorithm vtkGraphToPolyData(0x89d5ac8) has 0 connections but is not
> optional.
>
> but as far as I can tell I have set all the connections properly. Can
> anyone see something I have done wrong?
>
> Thanks,
>
> David
>

Is this a valid thing to do? Have a filter with input PolyData and output
Graph?

Thanks,

David
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