After importing the STL file, “Resample with Dataset” is used to map the results on the STL mesh.
From there “Normal Glyphs” are used to define the Normals of the imported STL mesh.
But I am missing how to proceed to get the normals in the Calculator in order to compute the velocity projection along these normals and perpandiculars.
“Surface Vectors”, or “GenerateSurfaceNormals” should do the job too. Shown as Glyphs the produced results have nothing to do with the direction of the imported STL, so I am missing a step here too.
The similar topics are
but cannot figure out how to apply in this context
Generate Surface Normals should be the right thing to do. In fact, Normal Glyphs is a compound filter that uses Generate Surface Normals internally, so it makes little sense that one would work and the other would not.
Can you be more specific about how the result is wrong? Can you perhaps share your STL data for us to take a look?
Thank you for your feedback. I’ll try to be more specific: whether I apply one or the other method, there is no ‘’ Normals ‘’ available in the calculator, so I cannot proceed with the calculations I would like to do.
“Normal Glyphs” is a display filter so it makes sense there is no “Normals” in the “Calculator”. “GenerateSurfaceNormals” leads to the correct results when visualised properly together with the Glyph filter. Happy to close this topic, thank you for you time.