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<p class="MsoNormal">Dear All,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif";color:#212121;background:white">I am interested in using the matplotlib library to plot the data filtered through "PlotOverLine" filter. I believe this is of type vtkMultiBlockDataSet with
1 child (vtkPolyData)<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif";color:#212121;background:white"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-family:"Tahoma","sans-serif";color:#212121;background:white">I am having issues with
</span><span style="font-family:"Arial","sans-serif";color:#4B4B4C;background:white"> SetAttributeArrayStatus(…) for an array in
</span><span style="font-family:"Tahoma","sans-serif";color:#212121;background:white">vtkMultiBlockDataSet.
<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt;color:black"><o:p> </o:p></span></b></p>
<p class="MsoNormal">Here is the script, I used:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">def setup_data(view):<o:p></o:p></p>
<p class="MsoNormal"> from paraview.numpy_support import vtk_to_numpy<o:p></o:p></p>
<p class="MsoNormal"> for i in xrange(view.GetNumberOfVisibleDataObjects()):<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> dataObject = view.GetVisibleDataObjectForSetup(i).GetBlock(0) #Accessing the point data<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;background:white"> pressure = dataObject.GetPointData().GetArray("p")<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;background:white"> print vtk_to_numpy(pressure) # prints the pressure array<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> view.DisableAllAttributeArrays()<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in"> view.SetAttributeArrayStatus(i, vtkDataObject.POINT, "p", 1) # code breaks here! Could not pass the vtkDataObject.POINT array<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">def render(view, width, height):<o:p></o:p></p>
<p class="MsoNormal"> from paraview.numpy_support import vtk_to_numpy<o:p></o:p></p>
<p class="MsoNormal"> from paraview import python_view<o:p></o:p></p>
<p class="MsoNormal"> figure = python_view.matplotlib_figure(width, height)<o:p></o:p></p>
<p class="MsoNormal" style="background:white"> for i in xrange(view.GetNumberOfVisibleDataObjects()):<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;background:white"> dataObject = view.GetVisibleDataObjectForRendering(i) .GetBlock(0)
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;background:white"> pressure = dataObject.GetPointData().GetArray("p")
<o:p></o:p></p>
<p class="MsoNormal" style="margin-left:.5in;background:white"> print vtk_to_numpy(pressure)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Any help is much appreciated.<o:p></o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Jay<o:p></o:p></p>
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