triangulation_boundary_edges_test

triangulation_boundary_edges_test, a MATLAB program which calls triangulation_boundary_edges() to analyze the triangulation of a region, identify the edges that form the boundaries, organize the boundary edges into one or more connected components, and write a file describing the components and the sequence of boundary edges.

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_edges, a MATLAB program which reads data defining a triangulation, determines which edges lie on the boundary, organizes them into connected components, and writes this information to a file.

Source Code:

• triangulation_boundary_edges_test.m, calls all the tests.
• triangulation_boundary_edges_test.sh, runs all the tests.
• triangulation_boundary_edges_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_elements.txt, the triangles.
• elbow.txt, the printed output from a run of the sample program.
• elbow_boundary_edges.txt, the boundary edge file.

ELL is an L-shaped region, using 96 triangles and 65 nodes. It is triangulated using order 3 triangles.

• ell_nodes.txt, the node file.
• ell_elements.txt, the triangles.
• ell.txt, the printed output from a run of the sample program.
• ell_boundary_edges.txt, the boundary edge file.

LAKE is an irregular lake-shaped region with an "island", which means the boundary is made of two components. It is triangulated using order 3 triangles.

• lake_nodes.txt, the node file.
• lake_elements.txt, the triangles.
• lake.txt, the printed output from a run of the sample program.
• lake_boundary_edges.txt, the boundary edge file.