Function to calculate the principal curvatures on a triangular mesh. Approximations of curvature are based on local (N=1) neighborhood elements and vertices.



Note: Directions of curvatures aren t calculated appropriately. Will post an updated version once this is implemented.



Note that calculations at vertices with few adjacent triangles, and hence few adjacent vertices, are expanded to a greater neighborhood.



Reference:

1) Chen and Schmitt (1992) Intrinsic surface properties from surface triangulation

2) Dong et al. (2005) Curvature estimation on triangular mesh, JZUS



This code makes use of routines: buildInverseTriangualtion.m & removeDO.m

initially written by: David Gringas. He is gratefully acknowledged