I have a vtkUnstructuredGrid with a bunch of points and lines. For each
of the lines I want to overlay a tube and change it so it arcs like a
rainbow. What is the best way to go about doing this?
Right now it looks like I need to use splines and tubes, however it
seems difficult to create a spline between two points. I have the two
point ids in vtkIdType or the cell id of the line in vtkIdType. It looks
like it requires a vtkPoints*. I'm not sure how to get a subset from my
unstructured grid's points in that form.
Any ideas or example code would be great.
Thanks,
Brian Panneotn
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