Coordinates & Cosmology

There are two utility classes in yet_another_wizz that are used to handle angular coordinates and distance computations in angular and 3-dimensional Euclidean coordintes:

AngularCoordinates(data)	Container for angular coordinates in radian.
AngularDistances(data)	Container for angular distances in radian.

In many cases, the code needs to convert physical or comoving distances to angles at a given redshift. Although the final clustering redshifts should only very weakly depend on the exact cosmological model, it is possible to choose the cosmology freely. Valid cosmologies must be either astropy cosmologies or a subclass of CustomCosmology:

cosmology.CustomCosmology()	Meta-class that defines the interface for custom cosmologies.
cosmology.get_default_cosmology()	Returns the default Planck 2015 cosmology.