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SHCoeffs

Subclasses
SHRealCoeffs Real spherical harmonic coefficient class.
SHComplexCoeffs Complex spherical harmonic coefficient class.
Initialization
x = SHCoeffs.from_array() Initialize using coefficients from an array.
x = SHCoeffs.from_random() Initialize using random coefficients with a prescribed power spectrum.
x = SHCoeffs.from_zeros() Initialize with coefficients set to zero.
x = SHCoeffs.from_file() Initialize using coefficients from a file.
Class attributes
lmax The maximum spherical harmonic degree of the coefficients.
coeffs The raw coefficients with the specified normalization and phase conventions.
normalization The normalization of the coefficients: '4pi', 'ortho', or 'schmidt'.
csphase Defines whether the Condon-Shortley phase is used (1) or not (-1).
mask A boolean mask that is True for the permissible values of degree l and order m.
kind The coefficient data type: either 'complex' or 'real'.
Class methods
to_file() Save raw spherical harmonic coefficientsto a text or binary file.
to_array() Return an array of spherical harmonics coefficients with a different normalization convention.
degrees() Return an array listing the spherical harmonic degrees from 0 to lmax.
spectrum() Return the spectrum of the function.
set_coeffs() Set coefficients in-place to specified values.
rotate() Rotate the coordinate system used to express the spherical harmonics coefficients and return a new class instance.
convert() Return a new class instance using a different normalization convention.
expand() Evaluate the coefficients either on a spherical grid and return an SHGrid class instance, or for a list of latitude and longitude coordinates.
copy() Return a copy of the class instance.
plot_spectrum() Plot the spectrum as a function of spherical harmonic degree.
plot_spectrum2d() Plot the spectrum of all spherical-harmonic coefficients.
info() Print a summary of the data stored in the SHCoeffs instance.

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