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I am stuck trying to understand how to construct a specific laplacian matrix to fair meshes. The original paper is here:
https://www.cs.toronto.edu/~jacobson/seminar/botsch-and-kobbelt-2004.pdf
And there is a relevant talk in section 4.3 of this book:
http://staff.ustc.edu.cn/~lgliu/Courses/DGP_2014_autumn-winter/References/Book_Polygon%20Mesh%20Processing.pdf
The last question I asked about this topic is here:
https://scicomp.stackexchange.com/questions/43241/computing-discrete-laplacian-matrix-for-mesh-fairing
All in all I just don;t understand how to actually build up the matrix to compute the fairing of the mesh.