FEM3D_SAMPLE, a C++ program which evaluates a finite element function of a 3D argument.
The current version of the program can only handle tetrahedral finite element meshes using linear basis functions.
The current version of the program uses a NAIVE search algorithm to locate points within the mesh. It is intended that this search algorithm be replaced by a Delaunay search.
fem3d_sample fem_prefix sample_prefixwhere fem_prefix is the common prefix for the FEM files:
The computer code and data files described and made available on this web page are distributed under the GNU LGPL license.
FEM3D_SAMPLE is available in a C++ version and a FORTRAN90 version and a MATLAB version.
FEM_IO, a C++ library which reads or writes node, element and data files defining a finite element model.
FEM1D_SAMPLE, a C++ program which samples a scalar or vector finite element function of one variable, defined by FEM files, returning interpolated values at the sample points.
FEM2D_SAMPLE, a C++ program which samples a scalar or vector finite element function of 2 variables defined by FEM files, returning interpolated values at the sample points.
FEM3D, a data directory which contains examples of 3D FEM files, three text files that describe a 3D finite element geometry;
FEM3D_PACK, a C++ library which contains utilities for 3D finite element calculations.
FEM3D_PROJECT, a C++ program which projects a function F(X,Y,Z), given as a data, into a given finite element space of piecewise linear tetrahedral elements.
HISTOGRAM_DATA_2D_SAMPLE, a C++ program which demonstrates how to construct a Probability Density Function (PDF) from a frequency table over a 2D domain, and then to use that PDF to create new samples.