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<p style="margin-top:0;margin-bottom:0">Dear Paraviewers,</p>
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<p style="margin-top:0;margin-bottom:0">I am trying to visualize Vorticities and Q criterion , for the damBreak case (2D) with catalyst (Paraview 5.5.1). The GradientOfUnstructuredDataSet filter has both of them, unfortunately this filter is not to be found
in manifest.json file inside <span>Paraview/Catalyst/Editions/Extras</span> of github.</p>
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<p style="margin-top:0;margin-bottom:0">Separately, I've also tried doing the following filters for vorticities, but it wouldnt work.</p>
<p style="margin-top:0;margin-bottom:0">1) ComputeDerivative() , gives <span>NameError: name 'ComputeDerivative' is not defined</span></p>
<p style="margin-top:0;margin-bottom:0">2) python calculator with vorticity(U) as Expression, gives
<span>Failed to create 'vtkPythonCalculator'</span> error</p>
<p style="margin-top:0;margin-bottom:0">3) GradientofUnstructuredDataSet(), again gives
<span>NameError: name '<span>GradientofUnstructuredDataSet</span>' is not defined</span>.</p>
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<p style="margin-top:0;margin-bottom:0">Focussing on the last error, could someone guide me on what else could I do I visualize vorticities and Q-criterion in Catalyst.</p>
<p style="margin-top:0;margin-bottom:0">Or perhaps a way to add to the manifest.json file so that my filters work with catalyst, if that would be a better option?<br>
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Sincerly, <br>
Atul Singh.<br>
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