The surface models module creates point normals by default. How can I create an array containing normals of all of the cells (not point normals)?
Use the normals filter with this option:
https://vtk.org/doc/nightly/html/classvtkPolyDataNormals.html#a4c27b2bfa1f4924ada7cffccf5aae643
Search on the forum (or on google) how to calculate normals if you don’t know how to use this filter. I’m sure there are examples
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