nuto
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GmshWriter::Write() exports wrong normals in 2D
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The normals of the interface quads are opposite to the other normals. Since we currently just take the normals from gmsh and do no further checking, this results in an inconsistent det(Jacobian).
Any reasons why we do not just check all det(J)>0?
This would be one option to warn the user. (The discussion on that is here #174) It does not fix the problem though. :cry:
We have to fix the GmshWriter code, but I have no time for that currently.