Pix2Sky_ZenithalEqualArea

class astropy.modeling.projections.Pix2Sky_ZenithalEqualArea(*args, **kwargs)

Bases: astropy.modeling.projections.Pix2SkyProjection, astropy.modeling.projections.Zenithal

Zenithal equidistant projection - pixel to sky.

Corresponds to the ZEA projection in FITS WCS.

See Zenithal for a definition of the full transformation.

\[\theta = 90^\circ - 2 \sin^{-1} \left(\frac{\pi R_\theta}{360^\circ}\right)\]

Methods Summary

evaluate(x, y)

Evaluate the model on some input variables.

Methods Documentation

classmethod evaluate(x, y)

Evaluate the model on some input variables.