triangulation_orient_test

triangulation_orient_test, a Fortran90 code which calls triangulation_orient(), which reads a triangulation, and reorients each triangle that has a negative area. If at least one such triangle is encountered, the program writes out a new copy of the triangle file in which all the triangles have been correctly oriented.

Licensing:

The information on this web page is distributed under the MIT license.

Related Data and Programs:

triangulation_orient, a Fortran90 code which reads a triangulation, and reorients each triangle that has a negative area. If at least one such triangle is encountered, the program writes out a new copy of the triangle file in which all the triangles have been correctly oriented.

Source Code:

• triangulation_orient_test.sh, runs all the tests.
• triangulation_orient_test.txt, the output file.

P15 is a triangulation created by DISTMESH. Unfortunately, 512 of the triangles have a negative orientation. In this example, TRIANGULATION_ORIENT was used to reorient those triangles.

• p15_nodes.txt, a set of nodes.
• p15_elements.txt, a set of order 3 triangles.
• p15_orient_elements.txt, the set of order 3 triangles after TRIANGULATION_ORIENT has reoriented them.