Greg, I would not use Fetch to do what you need. Here is something that should work:
# reuse your wake_out proxy di = wake_out.GetDataInformation() rowInfo = di.GetRowDataInformation() # get largest magnitude value from column 2 rowInfo.GetArrayInformation(1).GetComponentRange(0)[1] #You then use a programmable filter with the following copy op. #one deepcopy to get your initial array, and then you scale it the way you want # you may discard the old array later import vtk input = self.GetInput() newcol0 = vtk.vtkDoubleArray() newcol0.DeepCopy(input.GetColumn(0)) for i in range(newcol0.GetNumberOfTuples()): newcol0.SetValue(i, 2.0 * newcol0.GetValue(i)) # rescale by a factor of 2 output = self.GetOutputDataObject(0) output.AddColumn(newcol0) print output.GetNumberOfColumns() ----------------- Jean M. Favre Swiss National Supercomputing Center _______________________________________________ Powered by www.kitware.com Visit other Kitware open-source projects at http://www.kitware.com/opensource/opensource.html Please keep messages on-topic and check the ParaView Wiki at: http://paraview.org/Wiki/ParaView Follow this link to subscribe/unsubscribe: http://www.paraview.org/mailman/listinfo/paraview
