**tetrahedron_grid**,
a Python code which
generates a grid of points
over the interior of a tetrahedron in 3D.

Starting with any 4 points A, B, C and D that define a tetrahedron, we can divide each edge of the tetrahedron into N subintervals, and create a tetrahedral grid. This defines ((N+1)*(N+2)*(N+3))/6 points that lie on the intersections of grid lines.

The code includes a routine which allows the user to pick an arbitrary tetrahedron and an arbitrary number of subdivisions. It then returns the tetrahedral gridpoints defined by that choice.

The computer code and data files described and made available on this web page are distributed under the MIT license

**tetrahedron_grid** is available in
a C version and
a C++ version and
a FORTRAN90 version and
a MATLAB version and
a Python version.

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- tetrahedron_grid.py, the source code.
- tetrahedron_grid.sh, runs all the tests.
- tetrahedron_grid.txt, the output file.

- tetrahedron_grid_points.xyz, a sample set of grid points written to a file.
- tetrahedron_grid_points.png, a plot of a sample set of points.
- tetrahedron_grid_display.png, a demonstration of the output of tetrahedron_grid_display().