earth_sphere, a MATLAB code which displays a 3D image of the earth, including oceans, continents, and topography, by Clay Thompson and Will Campbell.
earth_spheresimply displays a 3D image of the earth's surface.
[ x, y, z ] = earth_sphere ( n )
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earth_sphere is available in a MATLAB version.
sphere_grid, a MATLAB code which provides a number of ways of generating grids of points, or of points and lines, or of points and lines and faces, over the unit sphere.
sphere_stereograph, a MATLAB code which computes the stereographic mapping between points on the unit sphere and points on the plane Z = 1; a generalized mapping is also available