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:
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
TRIANGULATION_NODE_TO_ELEMENT is available in a C version and a C++ version and a FORTRAN90 version and a MATLAB version.
TRIANGULATION, a C++ library which carries out various operations on order 3 ("linear") or order 6 ("quadratic") triangulations.
TRIANGULATION_L2Q, a C++ program which reads information about a 3-node (linear) triangulation and creates data defining a corresponding 6-node (quadratic) triangulation;
TRIANGULATION_Q2L, a C++ program which reads information about a 6-node (quadratic) triangulation and creates data defining a corresponding 3-node (linear) triangulation;