I am trying to write a plugin as a Paraview interface to vtkLandmarkTransform. The idea is to select three points in data set A and three points in data set B and pass them to the plugin to perform the computation.
1) Is the best way to do this to extract the points from the data set using the Extract Selection filter first? This seems a little bit awkward for the user. 2) Is there a way to select separate points in a single selection in Paraview? I tried using "Select Points Through" and then holding CTRL and doing it again but the selection is simply changed, not appended. As an example, say I have a ring of points and I want to select 4 points, one at the top, bottom, left, and right of the ring, but not the points between them - how would I do this? Thanks, David
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