computes an approximation from a given spherical axis field by computing the spherical Fourier coefficients with quadrature componentwise.
Syntax
sAF = S2AxisFieldHarmonic.approximate(f)
sAF = S2AxisFieldHarmonic.approximate(f, 'bandwidth', bw)Input
| f | function handle in vector3d |
Output
| sAF | S2AxisFieldHarmonic |
Options
| bw | degree of the spherical harmonic (default: 128) |