Sky2Pix_HEALPixPolar¶
- class astropy.modeling.projections.Sky2Pix_HEALPixPolar(*args, **kwargs)[source]¶
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.