CGAL users discussion list

[Olumide <>]

Hello -

I'm looking to use the jet-fitting algorithm to compute the principal 
curvature and directions at various non-vertex points of a (triangular 
mesh) i.e. my points of interest lie on the faces of a mesh, and by 
definition, do not coincide with its vertexes.

My question however concerns the method used by the implementation of 
the jet-fitting algorithm in this case. I would like to confirm if the 
jet-fitting algorithm uses an (a) interpolation or (b) approximation 
approach to compute the differential properties at such no-vertex points 
-- the former would be preferred.

I'm aware that this issue was discussed on page 12 of "Jet fitting 3: A 
Generic C++ Package for Estimating the Differential Properties on 
Sampled Surfaces via Polynomial Fitting", but I found the reading a bit 
confusing probably because I'm only just learning the algorithm.

Thanks,

- Olumide