While I am learning some concepts from (discrete)differential geometry, I find it intuitive to visualize them on the mesh as various hues. For this job I need to locate the corresponding position on the mesh for each given UV coordinate.
I write an operator
to illustrate how this can be done using
Almost all of this implementation is learned from CoDEmanX’s answer
in this BlenderArtists post.
Later I will rewrite this in C for optimal performance.