sphtfunc
– Spherical harmonic transforms¶
From map to spherical harmonics¶
anafast (map1[, map2, nspec, lmax, mmax, …]) |
Computes the power spectrum of a Healpix map, or the cross-spectrum between two maps if map2 is given. |
map2alm (maps[, lmax, mmax, iter, pol, …]) |
Computes the alm of a Healpix map. |
From spherical harmonics to map¶
synfast (cls, nside[, lmax, mmax, alm, pol, …]) |
Create a map(s) from cl(s). |
alm2map (alms, nside[, lmax, mmax, pixwin, …]) |
Computes a Healpix map given the alm. |
alm2map_der1 (alm, nside[, lmax, mmax]) |
Computes a Healpix map and its first derivatives given the alm. |
Spherical harmonic transform tools¶
smoothing (map_in, *args, **kwds) |
Smooth a map with a Gaussian symmetric beam. |
smoothalm (alms[, fwhm, sigma, beam_window, …]) |
Smooth alm with a Gaussian symmetric beam function. |
alm2cl (alms1[, alms2, lmax, mmax, lmax_out, …]) |
Computes (cross-)spectra from alm(s). |
synalm (cls[, lmax, mmax, new, verbose]) |
Generate a set of alm given cl. |
almxfl (alm, fl[, mmax, inplace]) |
Multiply alm by a function of l. |
pixwin (nside[, pol]) |
Return the pixel window function for the given nside. |
Alm () |
This class provides some static methods for alm index computation. |
Other tools¶
gauss_beam (fwhm[, lmax, pol]) |
Gaussian beam window function |