Hi all, I often do something similar when reading data originally from a text table. In this case I need to turn 3 arrays into a single 3-component uchar array for the purpose of RGB coloring. I found that I can also use the following python calculator expression to accomplish this goal (assuming the arrays are named 'R', 'G', 'B' respectively). This assumes the values are already scaled between 0-255.
hstack([inputs[0].PointData['R'], inputs[0].PointData['G'], inputs[0].PointData['B']]).astype(uint8) -- Casey B. Goodlett, Ph.D. Technical Leader Kitware, Inc. - North Carolina Office http://www.kitware.com (919) 969-6990 x310
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