[Paraview] Mask values using the stl mesh file

[hanieh mirzaee]

Dear all,
I would like to know, if there is a way in paraview to mask data arrays with a stl mesh file. For example, let's say we have a tube and  volumetric pressure values. However, the pressure data  extends outside of the tube. Is there a way to mask out those points?
Best,Hanieh
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