nifty8.domains.gl_space module#

class GLSpace(nlat, nlon=None)[source]#

Bases: StructuredDomain

Represents a 2-sphere with Gauss-Legendre pixelization.

Its harmonic partner domain is the LMSpace.

Parameters:

nlat (int) – Number of latitudinal bins (or rings) that are used for this pixelization.
nlon (int, optional) – Number of longitudinal bins that are used for this pixelization. Default value is 2*nlat - 1.

__init__(nlat, nlon=None)[source]#

__repr__()[source]#: Return repr(self).

check_codomain(codomain)[source]#: Raises TypeError if codomain is not a matching partner domain for self.

Notes

This function only checks whether codomain is of type LMSpace.

property dvol#

pixel volume(s)

Returns the volume factors of this domain, either as a floating point scalar (if the volume factors are all identical) or as a floating point array with a shape of self.shape.

Type:: float or numpy.ndarray(dtype=float)

get_default_codomain()[source]#

Returns a LMSpace object, which is capable of storing an accurate representation of data residing on self (if this data is band-limited).

Returns:: The partner domain
Return type:: LMSpace

property harmonic#

True iff this domain is a harmonic domain.

Type:: bool

property nlat#

number of rings in this domain

Type:: int

property nlon#

pixels per ring in this domain

Type:: int

property scalar_dvol#

uniform pixel volume, if applicable

Returns the volume factors of this domain as a floating point scalar, if the volume factors are all identical, otherwise returns None.

Type:: float or None

property shape#

number of pixels along each axis

The shape of the array-like object required to store information defined on the domain.

Type:: tuple of int

property size#

total number of pixels.

Equivalent to the products over all entries in the domain’s shape.

Type:: int

property total_volume#

Total domain volume.

Returns the sum over all the domain’s pixel volumes.

Type:: float