Dear all, I have to solve a PDE on the Torus surface. After some work I was able to create the entire Triangulation<2,3> and Boundary<2,3> classes.I had to call the create_trianguation_compatibility() function because the coarsest mesh (the Triangulation<,>) was created with the right hand numbering scheme (anticlockwise order) for vertices in cells.
Now, I want to check that the normals of the coarsest mesh are effectively pointing outwards from the surface, as I originally took care using the right hand convention. I have read in the create_trianguation() source code that this function takes care of making the numbering of the vertices in such a way that the normal field is continuous. So, I think that I just have to pick only one cell, take its first and second vertices, take the cross product and see if is pointing outwards from the surface. Is this correct? Thanks. Daniel.
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