Sky2Pix_HEALPixPolar

class astropy.modeling.projections.Sky2Pix_HEALPixPolar(*args, meta=None, name=None, **kwargs)[source] [edit on github]

Bases: astropy.modeling.projections.Sky2PixProjection, astropy.modeling.projections.HEALPix

HEALPix polar, aka “butterfly” projection - pixel to sky.

Corresponds to the XPH projection in FITS WCS.

Methods Summary

evaluate(phi, theta)

Methods Documentation

classmethod evaluate(phi, theta)[source] [edit on github]