triangulation_triangle_neighbors_test

triangulation_triangle_neighbors_test, an Octave code which calls triangulation_triangle_neighbors(), which computes the three neighboring triangles of each triangle in a triangulation.

Licensing:

The computer code and data files described and made available on this web page are distributed under the MIT license

Related Data and Programs:

triangulation_triangle_neighbors, an Octave code which reads data defining a triangulation, determines the neighboring triangles of each triangle, and writes that information to a file.

Source Code:

• triangulation_triangle_neighbors_test.m, calls all the tests.
• triangulation_triangle_neighbors_test.sh, runs all the tests.
• triangulation_triangle_neighbors_test.txt, the output file.

BIG_CAVITY is a triangulation using 8,195 nodes and 4,000 elements.

• big_cavity_nodes.txt, the node coordinates.
• big_cavity_elements.txt, the triangulation;
• big_cavity_triangulation.png, a PNG image of the triangulation;
• big_cavity_element_neighbors.txt, the neighbor triangles.

BOX3 is a triangulation of order 3, using 20 nodes and 24 elements:

• box3_nodes.txt, the node coordinates.
• box3_elements.txt, the triangulation;
• box3_triangulation.png, a PNG image of the triangulation;
• box3_element_neighbors.txt, the neighbor triangles.

BOX6 is a triangulation of order 6:

• box6_nodes.txt, the node coordinates.
• box6_elements.txt, the triangulation;
• box6_triangulation.png, a PNG image the triangulation;
• box6_element_neighbors.txt, the neighbor triangles.

GREENLAND is a triangulation using 33,343 nodes and 64,125 elements.

• greenland_nodes.txt, the node coordinates.
• greenland_elements.txt, the triangulation;
• greenland_element_neighbors.txt, the neighbor triangles.

LAKE_COARSE is an irregular lake with an island.
There are 621 nodes and 974 elements and 1 hole.

• lake_coarse_nodes.txt, the node coordinates.
• lake_coarse_elements.txt, the triangulation;
• lake_coarse_triangulation.png, a PNG image of the triangulation.
• lake_coarse_element_neighbors.txt, the neighbor triangles.

LAKE3 is an irregular lake with an island.
The smallest angle is 23.46 degrees.
There are 1552 nodes and 2820 elements and 1 hole.

• lake3_nodes.txt, the node coordinates.
• lake3_elements.txt, the triangulation;
• lake3_triangulation.png, a PNG image of the triangulation.
• lake3_element_neighbors.txt, the neighbor triangles.