Compute tangent vector in an intrinsic triangulation for vertices

[jjcasmar]

I have a a gc::Vector2 defined for some vertices on an extrinsic triangulation. These vectors are defined in the tangent basis for each vertex.

I am trying to transport these vectors to the rest of the mesh using the heat method, but since my mesh is shitty, it works very bad.

I have tried to convert the mesh to an intrinsic triangulation, refine and make it delaunay, but now I am stuck, as apparently there is no way to get the tangent basis for the intrinsic vertices.

Is there any way to convert the 2D vectors in the extrinsic triangulation to 2D vectors in the intrinsic triangulation so I can use the heat method?

[nzfeng]

I'm not sure, assuming you really only have intrinsic vectors, and that these vectors didn't come from other data that might more easily be transferred, for example using the functions described here.

Talking with @MarkGillespie, it seems that if you are using a SignpostIntrinsicTriangulation then you should be able to use the original gc::Vector2s, since SignpostIntrinsicTriangulations keep the same tangent basis. I'm not sure if that holds for IntegerCoordinatesIntrinsicTriangulation.