Fast Spherical Harmonic Transform Fast Spherical Harmonic Transform – Perform fast spherical harmonic transform and inverse transform using S2kit C code.

Fast Spherical Harmonic Transform – Perform fast spherical harmonic transform and inverse transform using S2kit C code. A MATLAB interface to S2kit, with routines for spherical harmonic decompositions of spherical data. Computes the fast spherical harmonic transform and its inverse. See README.MEX for more details. See Test.m and TestInv.m for example scripts. Requirements: MATLAB Release: R14SP1 on Linux. Probably works on later versions. Some users have reported success from Windows too.

This file was previously hosted at http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=8427&objectType=FILE until Mathworks decided to delete all code licenced under the GPL from their site!

Download S2kit MEX source code package here.

[Optionally: download the original S2kit archive here.]