Did you call an UpdatePipeline before checking for point-data arrays? e.g. ProgrammableFilter1.UpdatePipeline() print ProgrammableFilter1.PointData.GetNumberOfArrays()
Utkarsh On Wed, Mar 5, 2014 at 8:31 PM, Simon Couture <[email protected]> wrote: > Hi everyone, > > I am trying to use paraview from an external python program where I import > paraview.simple and mostly use python code generated by Paraview's trace tool > to accomplish what I want. In general it works well, but in one instance I > need > to generate a new data array from my source/reader, and as far as I know, the > programmable filter is the only way to do this (the actual PointData arrays of > the sources are not directly visible/editable through the python shell). Now > when I try to execute the python code that I get from trace to insert a > programmable filter with a given script, the PointData array that the > programmable filter's script is supposed to create is not created (and it does > work when I create the programmable filter using the Paraview GUI). > > To be more clear, here is the python code that I run (cutting out camera and > rendering commands): > > mysource = AVSUCDReader( FileNames=['/home/myfile.inp'] ) > > mysource.PointArrayStatus = [] > mysource.CellArrayStatus = [] > > RenderView1 = GetRenderView() > DataRepresentation3 = Show() > ProgrammableFilter1 = ProgrammableFilter() > DataRepresentation4 = Show() > ProgrammableFilter1.RequestUpdateExtentScript = '' > ProgrammableFilter1.PythonPath = '' > ProgrammableFilter1.RequestInformationScript = '' > ProgrammableFilter1.Script = "pdi = self.GetInput()\nnbpoints = > pdi.GetNumberOfPoints()\ninput_pointdata = pdi.GetPointData().GetArray('data') > [... the rest of my script here]" > > After running this in either the paraview python shell or from an external > python program, if I do for instance: > > ProgrammableFilter1.PointData.GetNumberOfArrays() > > I get 0 meaning that no PointData array was created, whereas if the same > programmable filter is created in the paraview GUI, I would get 1. Please note > that I am not using the Copy Arrays option of the programmable filter. > > Has anyone successfully used the programmable filter from a python script? > > _______________________________________________ > 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 _______________________________________________ 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
