triangulation_histogram, an Octave code which computes the number of points from a dataset that are contained in each triangle of a triangulation.
One application of this program is simply to determine whether the dataset represents an approximately uniform sampling of the region covered by the triangulation.
triangulation_histogram ( 'prefix', 'data_filename' )where 'prefix' is the common prefix for the node and element files
The information on this web page is distributed under the MIT license.
triangulation_histogram is available in a C++ version and a Fortran90 version and a MATLAB version and an Octave version.
random_data, an Octave code which generates sample points for various probability distributions, spatial dimensions, and geometries;
triangle_histogram, an Octave code which computes histograms of data on the unit triangle.
triangulation, an Octave code which performs various operations on order 3 (linear) or order 6 (quadratic) triangulations.
triangulation_boundary_edges, an Octave code 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.
triangulation_boundary_nodes, an Octave code which reads data defining a triangulation, determines which nodes lie on the boundary, and writes their coordinates to a file.
triangulation_corner, an Octave code which patches triangulations so that no triangle has two sides on the boundary.
triangulation_delaunay_discrepancy, an Octave code which measures the amount by which a triangulation fails the local Delaunay test;
triangulation_l2q, an Octave code which reads data defining a 3-node triangulation and generates midside nodes and writes out the corresponding 6-node triangulation.
triangulation_mask, an Octave code which takes an existing triangulation and deletes triangles and their corresponding nodes as requested by the user.
triangulation_order3, a data directory which contains a description and examples of order 3 triangulations.
triangulation_order6, a data directory which contains a description and examples of order 6 triangulations.
triangulation_orient, an Octave 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, an Octave code which reads data defining a triangulation and creates a Postscript image of the nodes and triangles.
triangulation_q2l, an Octave code which reads data defining a 6-node triangulation, and subdivides each triangle into 4 3-node triangles, writing the resulting triangulation to a file.
triangulation_quad, an Octave code which estimates the integral of a function over a triangulated region.
triangulation_quality an Octave code which reads data defining a triangulation and computes a number of quality measures.
triangulation_rcm an Octave code which reads data defining a triangulation, determines an ordering of the nodes that will reduce the bandwidth of the adjacency matrix, and writes the new triangulation information to a file.
triangulation_refine an Octave 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_triangle_neighbors an Octave code which reads data defining a triangulation, determines the neighboring triangles of each triangle, and writes that information to a file.