**triangulation_display_test**,
a MATLAB program which
calls triangulation_display() to plot a triangulation.

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

triangulation_display, a MATLAB program which reads files defining a triangulation and displays an image.

**BOX4** is an order 4 triangulation.

- box4_nodes.txt, the nodes.
- box4_nodes.png, an image of the nodes.
- box4_elements.txt, the elements.
- box4_elements.png, an image of the elements.
- box4_element_neighbors.txt, the element neighbors.
- box4_element_neighbors.png, an image of the element neighbors.

**CIRCLE** is a circular region, triangulated using
order 3 elements.

- circle_nodes.txt the point coordinates.
- circle_nodes.png an image of the elements.
- circle_elements.txt the elements
- circle_elements.png an image of the elements.

**ELBOW3** is an elbow-shaped region, triangulated using
order 3 elements.

- elbow3_nodes.txt the point coordinates.
- elbow3_nodes.png an image of the nodes.
- elbow3_elements.txt the elements.
- elbow3_elements.png an image of the elements.

**ELL3** is an order 3 triangulation of a set of nodes in an L-shaped region.

- ell3_nodes.txt, the nodes.
- ell3_nodes.png, an image of the nodes.
- ell3_elements.txt, the elements.
- ell3_elements.png, an image of the elements.
- ell3_element_neighbors.txt, the element neighbor array.
- ell3_element_neighbors.png, an image of the element neighbor labels.

**GREENLAND** is a triangulation of Greenland, using 33,343 nodes and
64,125 elements of order 3 elements. The image is too dense to display
in full, so MATLAB's "zoom" facility was used to display a small portion
of the mesh.

- greenland_nodes.txt, the nodes.
- greenland_elements.txt, the elements.
- greenland_elements.png, an image of the elements, after "zooming in" twice.

**HEX_HOLES3** puts a set of nodes into the double hexagonal
hole region using CVT techniques, and creates an order 3 triangulation
using TABLE_DELAUNAY.

- hex_holes3_nodes.txt, the nodes.
- hex_holes3_elements.txt, the elements.
- hex_holes3_elements.png, an image of the elements.

**IRREG6** is an order 6 triangulation.

- irreg6_nodes.txt, the nodes.
- irreg6_elements.txt, the elements.
- irreg6_elements.png, an image of the elements.

**LAKE3** uses constrained CVT methods to place nodes inside
and on the boundary of the problem 14 triangulation region,
a lake with an island. An order 3 triangulation is used.

- lake3_nodes.txt, the nodes;
- lake3_elements.txt, the elements;
- lake3_elements.png, an image of the elements.