TRIANGLE_DISPLAY is a MATLAB program which plots a triangulation using files associated with Jonathan Shewchuk's triangle() program.
TRIANGLE_DISPLAY reads the node and element files created by the TRIANGLE program, and displays the information. The user controls how "visible" the nodes and elements are; in particular, nodes can be suppressed, or displayed, or displayed and numbered, and the same is true for elements.
TRIANGLE_DISPLAY is essentially a version of TRIANGULATION_DISPLAY modified to read input files that use the TRIANGLE format.
Jonathan Shewchuk provides a program called showme(), which is able to show the same information, and to perform other interesting operations. However, there are at least three reasons why the TRIANGLE_DISPLAY program is useful:
triangle_display ( 'prefix', node_vis, element_vis )where 'prefix' is the common prefix for the node and element files.
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
TRIANGLE_DISPLAY is available in a MATLAB version.
FEM_BASIS_T3_DISPLAY, a MATLAB program which displays a basis function associated with a linear triangle ("T3") mesh.
FEM_BASIS_T6_DISPLAY, a MATLAB program which reads a quadratic triangle mesh and displays any associated basis function.
GRIDLINES, a MATLAB library which gives the user more control over drawing gridlines on a graph than the builtin "grid on" command.
MESH_DISPLAY, a MATLAB program which reads data defining a polygonal mesh and displays it, with optional numbering.
MPAS_GRID_DISPLAY, MATLAB programs which can read an MPAS NETCDF grid file and display the primary polygonal mesh or the dual triangular mesh.
PLY_DISPLAY, a MATLAB program which displays an image of a 3D graphics file in PLY format;
SHOWME, a C program which uses the X Window library to display triangulatons, by Jonathan Shewchuk.
TRI_SURFACE_DISPLAY, a MATLAB program which reads data defining a triangular mesh of a 3D surface and displays it.
TRIANGLE, a C program which computes a triangulation of a geometric region, by Jonathan Shewchuk.
TRIANGLE_FILES, a data directory of examples of files used by the triangle and showme programs.
TRIANGLE_IO, a MATLAB library which can read or write some of the files created by Jonathan Shewchuk's triangle() program.
TRIANGULATION_DISPLAY, a MATLAB program which reads files defining a triangulation and displays an image.
TRIANGULATION_DISPLAY_OPENGL, a C++ program which reads files defining a triangulation and displays an image using Open GL.
TRIANGULATION_PLOT, a MATLAB program which plots a triangulation as a PostScript file.
GREENLAND is a triangulation of Greenland, using a graded (varying-size) mesh of 33,343 nodes and 64,125 nodes. The resulting image is essentially a red blob the shape of Greenland. However, using the ZOOM tool, it is possible to see interesting details of the mesh.
SQUARE_CIRCLE_HOLE.1 is a square region with a circular hole. 826 nodes and 1517 elements are used.
You can go up one level to the MATLAB source codes.