I have a structured grid with a temperature array. I have verified that it has nonzero data stored in this array, checked with: vtk_to_numpy(volume.GetPointData().GetArray("Temperature")). I am trying to probe a ray through this volume to get the temperatures along this ray. By construction, I kno…

The issue is the ordering of numpy multidimensional arrays, and in particular the use of meshgrid. Try switching your meshgrid around like this: Z, Y, X = np.meshgrid( np.linspace(-0.012, 0.036, 21), # Z space np.linspace(-0.006, 0.027, 21), # Y space np.linspace( 0.120, 0.225, 51), …

Getting the samples out of vtkProbeFilter ...

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rexthor June 6, 2024, 3:53pm 2

Apparently I have been down this road before, and nobody seemed to know then either: