sphere_llq_grid_test, a MATLAB code which calls sphere_llq_grid(), which uses longitudes and latitudes to create grids of points, lines, and quadrilaterals over the surface of a sphere in 3D.
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sphere_llq_grid, a MATLAB code which uses longitudes and latitudes to create grids of points, lines, and quadrilaterals on the surface of the unit sphere in 3D.