[vtkusers] Using vtkTransformPolyDataFilter Locks Up Application

[Bill Lorensen]

Look at this example:
http://vtk.org/Wiki/VTK/Examples/Cxx/VisualizationAlgorithms/BandedPolyDataContourFilter


On Sun, Jan 5, 2014 at 8:08 PM, zmanvortex
<donny.zimmerman at willowpointsoftware.com> wrote:
> Hi Bill. Thanks for reading my thread.
>
> Yes, I am trying to create filled contours. I am visualizing high resolution
> weather radar data. Maybe you can help me find a better way. I am able to
> visualize the raw data by creating polygons (quads) and using a simple
> polygons->polydatamapper->actor pipeline. Here is a screenshot:
>
> <http://vtk.1045678.n5.nabble.com/file/n5725223/raw_data.png>
>
> I save memory by creating polygons directly from my data, but instead I am
> using vtkImageCanvasSource2D and drawing the two triangles of each quad to a
> 2d image, which takes more memory. I do this so I can use the
> MarchingSquares algorithm to get the contours. Is there a way I can get
> filled contours from my polygon approach so it looks somewhat like the
> following screenshot:
>
> <http://vtk.1045678.n5.nabble.com/file/n5725223/contoured_radar.png>
>
> I have been browsing through the different classes in VTK and I am unable to
> really come up with a good way.
>
> Any help would be appreciated.
>
>
>
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