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worked on tangents to faces of tetrahedra. They are computed automatically from the reference geometry. the first tangent on a face runs from vertex 0 to vertex 1 of that face. The second runs in the direction from the edge between vertex 0 and vertex 1 to vertex 2, perpendicular to the edge.

To: fiat-dev@xxxxxxxxxx
From: fiat@xxxxxxxxxx
Date: Thu, 15 Sep 2005 19:54:21 +0200
Sender: "Robert C. Kirby" <kirby@xxxxxxxxxx>

Commit from kirby (2005-09-15 19:54 CEST)
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worked on tangents to faces of tetrahedra.  They are computed automatically from the reference geometry.  the first tangent on a face runs from vertex 0 to vertex 1 of that face.  The second runs in the direction from the edge between vertex 0 and vertex 1 to vertex 2, perpendicular to the edge.

  fiat  FIAT/shapes.py  1.5