How to determine the maximum posible size of a inside shell before extruding the external surface?

[mau_igna_06 (Mauro I. Dominguez)]

Im my opinion this can be automated.

First you need to get the anatomical axis of the long bone. Look at this code to get an idea of something you could improve:

SlicerIGT/SlicerBoneReconstructionPlanner/blob/699c9970f163a14c7289dd8c8a7aa8b7346969d3/BoneReconstructionPlanner/BoneReconstructionPlanner.py#L3042

You can see my post about finding the anatomical axis also:
https://discourse.slicer.org/t/approximate-anatomical-axis-curve-of-long-bone/

Please let me know if you achieve it

Hope it helps

Mauro