triangulation_boundary_nodes_test

triangulation_boundary_nodes_test, a MATLAB program which calls triangulation_boundary_nodes() to analyze the triangulation of a region, and identifies each boundary node with the label "1".

Licensing:

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

Related Programs:

triangulation_boundary_nodes, a MATLAB program which reads data defining a triangulation, determines which nodes lie on the boundary, and writes their coordinates to a file.

Source Code:

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

ELBOW is a curved region, looking like an elbow, that lies inside the unit square. It is triangulated using order 3 triangles. There are 320 nodes and 568 triangles. There are 66 nodes on the boundary.

• elbow_nodes.txt, the node file.
• elbow_nodes.png, a PNG image of the nodes.
• elbow_elements.txt, the triangles.
• elbow.txt, the printed output from a run of the sample program.
• elbow_boundary_nodes.txt, the boundary node file.
• elbow_boundary_nodes.png, a PNG image of the boundary nodes.

LAKE is an irregular lake-shaped region with an "island". It is triangulated using order 3 triangles.

• lake_nodes.txt, the node file.
• lake_nodes.png, a PNG image of the nodes.
• lake_elements.txt, the triangles.
• lake.txt, the printed output from a run of the sample program.
• lake_boundary_nodes.txt, the boundary node file.
• lake_boundary_nodes.png, a PNG image of the boundary nodes.