Hello, I'm trying to use a programmable filter to apply colors to an ExodusII data set. What I'd like to do is to use some of the cell data arrays to calculate the rgb colors I want to apply, and then insert them into the data set for display.
I found a partial answer (maybe?) in the mailing list archives http://www.paraview.org/pipermail/paraview/2012-February/024097.html >From that what I assume I have to do is create a vtkUnsignedCharArray with length equal to the number of cells in the model, assign my colors, and then display. The problem I'm having is with the ExodusIIReader data structure. 1) I understand the ExodusIIReader is, well, a reader -- it will generate the data blocks, it's not actually representing the data. But I don't get how to access at the generated data. Say I have a single block of elements called 'hexes' with cell data 'stresses', how do I access that cell data in the programmable filter? 2) Where should I insert the new array of rgb colors in the filter output so that I can display them? (Answering 1 may answer this equation). Thanks, Mark
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