Can you explain some datails of the curvature

Forceflow / trimesh2

C++ library and set of utilities for input, output, and basic manipulation of 3D triangle meshes

GNU General Public License v2.0

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Closed 461353349 closed 4 years ago

461353349 commented 5 years ago

libsrc/TriMesh_curvature.cc, starting from line 194th:

The following Ax=b would be solved. I just want to know where the left matrix come from? Why is it three rows and three collonms? Thanks.

uu uv 0	x1	dnu*u
0 uu+vv u*v	x2	dnuv + dnvu
0 0 v*v	x3	dnv*v