errors about curvature calculation

[developerVertexLab]

hello,

I'm running your code on my own mesh, and I have found that this assertation fails at line 222 of Preprocess\preprocess_ortho_param.m:

assert(norm(wrapToPi(dec.d1d*para_trans - K)) < 1e-6, 'Gaussian curvature incompatible with angle defect.');

I would like to know the reasons of this error. Does this algorithm require input meshes with specific properties?

Thank you for your excellent work.