triangulation_node_to_element, a C++ code which reads datafiles 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.
The program reads three data files:
triangulation_node_to_element prefixwhere
The information on this web page is distributed under the MIT license.
triangulation_node_to_element is available in a C version and a C++ version and a Fortran90 version and a MATLAB version and an Octave version.
triangulation_node_to_element_test
triangulation, a C++ code which carries out various operations on order 3 ("linear") or order 6 ("quadratic") triangulations.
triangulation_l2q, a C++ code which reads information about a 3-node (linear) triangulation and creates data defining a corresponding 6-node (quadratic) triangulation;
triangulation_q2l, a C++ code which reads information about a 6-node (quadratic) triangulation and creates data defining a corresponding 3-node (linear) triangulation;