Sky2Pix_HEALPix#

class astropy.modeling.projections.Sky2Pix_HEALPix(*args, **kwargs)[source]#

Bases: Sky2PixProjection, HEALPix

HEALPix projection - sky to pixel.

Corresponds to the HPX projection in FITS WCS.

Parameters:
Hfloat

The number of facets in longitude direction.

Xfloat

The number of facets in latitude direction.

Attributes Summary

H

X

param_names

Names of the parameters that describe models of this type.

Attributes Documentation

H = _ParameterDS('H', value=4.0)#
X = _ParameterDS('X', value=3.0)#
param_names = ('H', 'X')#

Names of the parameters that describe models of this type.

The parameters in this tuple are in the same order they should be passed in when initializing a model of a specific type. Some types of models, such as polynomial models, have a different number of parameters depending on some other property of the model, such as the degree.

When defining a custom model class the value of this attribute is automatically set by the Parameter attributes defined in the class body.