triangulation_histogram, a C++ 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_filenamewhere 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, a C++ code which generates sample points for various probability distributions, spatial dimensions, and geometries;
triangle_histogram, a C++ code which computes histograms of data on the unit triangle.
triangulation, a C++ code which performs various operations on order 3 ("linear") or order 6 ("quadratic") triangulations.
triangulation_boundary_nodes, a C++ code which reads data defining a triangulation, determines which nodes lie on the boundary, and writes their coordinates to a file.
triangulation_corner, a C++ code which patches triangulations so that no triangle has two sides on the boundary.
triangulation_delaunay_discrepancy, a C++ code which measures the amount by which a triangulation fails the local Delaunay test;
triangulation_display_opengl, a C++ code which reads files defining a triangulation and displays an image using OpenGL.
triangulation_l2q, a C++ code which reads data defining a 3-node triangulation and generates midside nodes and writes out the corresponding 6-node triangulation.
triangulation_mask, a C++ code which takes an existing triangulation and deletes triangles and their corresponding nodes as requested by the user.
triangulation_node_to_element, a C++ code which reads files describing a set of nodes, their triangulation, and the value of one or more quantities at each node, and outputs a file that averages the quantities for each element. This operation in effect creates an "order1" finite element model of the data.
triangulation_order3, a directory which contains a description and examples of order 3 triangulations.
triangulation_order6, a directory which contains a description and examples of order 6 triangulations.
triangulation_orient, a C++ 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, a C++ code which reads data defining a triangulation and creates a PostScript image of the nodes and triangles.
triangulation_q2l, a C++ 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, a C++ code which estimates the integral of a function over a triangulated region.
triangulation_quality, a C++ code which reads data defining a triangulation and computes a number of quality measures.
triangulation_rcm, a C++ 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, a C++ 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, a C++ code which reads data defining a triangulation, determines the neighboring triangles of each triangle, and writes that information to a file.