Thany again Cory, I suppose my table has 40 point in X, 101 in Y and 3 in Z. So I did set accordling the filter, and I get no error.
So a big THANK YOU for your answer!
Aftert that, you may want to help me further, I need a finer resolution of the geometry.
As I do apply the Isovolume filter to get the virtually reconstructed surfaces, but the resolution seems not better than with the other way, “tabletopoints” filter. You may compare the two results in the enclosed pictures (Isovolume 1 is via the “tabletostructuredgrid” filter, Isovolume 2 is via the “tabletopoints” filter)
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So I have one filter less in the chain (i.e. "dalaunay3d), but I would like to have a finer resolution.
I did try the contour filter as well, and gives quite similar results.
Have you any hints how to improve the resolution ? would it be an idea to scale up the model since I can’t find a way to have a finer detail in the resultion of filter ?