[vtkusers] Visualizing a vector field from a vtkImageData

[David Doria]

On Tue, Sep 20, 2011 at 10:31 AM, Eric E. Monson <emonson at cs.duke.edu> wrote:
> I don't have time to play with it right now, but I suspect the extraction routine is expecting scalars and your "ImageScalars" is the vectors. You could try creating scalars which are the vector magnitudes and then threshold on that.
>
> -Eric

I used vtkThresholdPoints instead of vtkExtractSelectedThresholds and
it worked fine. vtkExtractSelectedThresholds needs a massive
documentation overhaul...

David