autogalaxy.profiles.geometry_profiles.SphProfile#

class SphProfile[source]#

Bases: GeometryProfile

A spherical profile, which describes profiles with y and x centre Cartesian coordinates.

Parameters:: centre (Tuple[float, float]) – The (y,x) arc-second coordinates of the profile centre.

Methods

`angle_to_profile_grid_from`	Convert a grid of angles, defined in degrees counter-clockwise from the positive x-axis, to a grid of angles between the input angles and the profile.
`has`	Does this instance have an attribute which is of type cls?
`radial_grid_from`	Convert a grid of (y, x) coordinates, to their radial distances from the profile centre (e.g.
`transformed_from_reference_frame_grid_from`	Transform a grid of (y,x) coordinates from the reference frame of the profile to the original observer reference frame.
`transformed_to_reference_frame_grid_from`	Transform a grid of (y,x) coordinates to the reference frame of the profile.

radial_grid_from(grid)[source]#

Convert a grid of (y, x) coordinates, to their radial distances from the profile centre (e.g. :math: r = x**2 + y**2).

Parameters:: grid (Union[ndarray, Grid2D, Grid2DIterate, Grid2DIrregular]) – The grid of (y, x) coordinates which are converted to radial distances.
Return type:: ndarray

angle_to_profile_grid_from(grid_angles)[source]#

Convert a grid of angles, defined in degrees counter-clockwise from the positive x-axis, to a grid of angles between the input angles and the profile.

Parameters:: grid_angles (ndarray) – The angle theta counter-clockwise from the positive x-axis to each coordinate in radians.
Return type:: Tuple[ndarray, ndarray]

transformed_to_reference_frame_grid_from(grid)[source]#

Transform a grid of (y,x) coordinates to the reference frame of the profile.

This performs a translation to the profile’s centre.

Parameters:: grid – The (y, x) coordinates in the original reference frame of the grid.

transformed_from_reference_frame_grid_from(grid)[source]#

Transform a grid of (y,x) coordinates from the reference frame of the profile to the original observer reference frame.

This performs a translation from the profile’s centre.

Parameters:: grid – The (y, x) coordinates in the reference frame of the profile.