Curvature lines on mesh

Hello friends
How can I get curved lines in the mesh like the picture?model-example.gh (25.0 KB)Capture111

Hi -
Some of this might get you started…
Principal curvature approximation on meshes - Grasshopper - McNeel Forum

Rhino Open Projects | Food4Rhino

Mesh Curvature | Food4Rhino
-wim

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