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I'd suggest section 2.2 and 3.3 and in particular page 42 of the User Guide. The Guide is a fantastic resource.<br>
<br>
https://www.paraview.org/paraview-downloads/download.php?submit=Download&version=v5.5&type=data&os=Sources&downloadFile=ParaViewGuide-5.5.0.pdf<br>
<br>
Jean<br>
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