triangulation_plot


triangulation_plot, a MATLAB code which plots a triangulation.

TRIANGULATION_PLOT reads one file listing the nodes, and a second file consisting of groups of 3 or 6 nodes that make up triangles, and creates an Encapsulated PostScript image of the triangulation.

Usage:

triangulation_plot ( 'prefix', node_vis, triangle_vis )
where 'prefix' is the common prefix for the node and triangle files, and will also be used to name the output file: and node_vis is an integer defining the node visibility: and triangle_vis is an integer defining the triangle visibility:

Licensing:

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

Languages:

triangulation_plot is available in a C++ version and a FORTRAN90 version and a MATLAB version.

Related Data and Programs:

fem_basis_t3_display, a MATLAB code which displays a basis function associated with a linear triangle ("t3") mesh.

fem_basis_t6_display, a MATLAB code which reads a quadratic triangle mesh and displays any associated basis function.

tri_surface_display, a MATLAB code which reads data defining a triangular mesh of a 3d surface and displays it.

triangulation, a MATLAB code which is useful for working with triangulations.

triangulation_corner, a MATLAB code which patches triangulations so that no triangle has two sides on the boundary.

triangulation_delaunay_discrepancy, a MATLAB code which measures the amount by which a triangulation fails the local delaunay test;

triangulation_display, a MATLAB code which displays the nodes and elements of a triangulation on the MATLAB graphics screen;

triangulation_histogram, a MATLAB code which computes histograms of data over a triangulation.

triangulation_mask, a MATLAB code which takes an existing triangulation and deletes triangles and their corresponding nodes as requested by the user.

triangulation_order3, a data directory which describes the node and triangle files used for an order 3 triangulation.

triangulation_order6, a data directory which describes the node and triangle files used for an order 6 triangulation.

triangulation_orient, a MATLAB code which reads data defining a triangulation, makes sure that every triangle has positive orientation, and if not, writes a corrected triangle file.

triangulation_plot_test

triangulation_quad, a MATLAB code which estimates the integral of a function over a triangulated region.

triangulation_refine, a MATLAB code which reads data defining a triangulation, replaces each triangle by four congruent smaller ones, and writes the new triangulation information to a file.

triangulation_svg, a MATLAB code which creates an svg image of a triangulation, which can be displayed by an web browser.

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

Reference:

  1. Marc deBerg, Marc Krevald, Mark Overmars, Otfried Schwarzkopf,
    Computational Geometry,
    Springer, 2000,
    ISBN: 3-540-65620-0,
    LC: QA448.D38.C65.
  2. Joseph ORourke,
    Computational Geometry,
    Second Edition,
    Cambridge, 1998,
    ISBN: 0521649765,
    LC: QA448.D38.

Source Code:


Last revised on 10 April 2019.