autogalaxy.profiles.geometry_profiles.SphProfile

class SphProfile

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	Returns True if any attribute of this profile is an instance of the input class cls, else False.
radial_grid_from	Convert a grid of (y, x) coordinates, to their radial distances from the profile centre (e.g. :math: r = sqrt(x**2 + y**2)).
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, xp=<module 'numpy' from '/home/docs/checkouts/readthedocs.org/user_builds/pyautogalaxy/envs/latest/lib/python3.11/site-packages/numpy/__init__.py'>, **kwargs)

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

Parameters:

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

angle_to_profile_grid_from(grid_angles, xp=<module 'numpy' from '/home/docs/checkouts/readthedocs.org/user_builds/pyautogalaxy/envs/latest/lib/python3.11/site-packages/numpy/__init__.py'>, **kwargs)

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.

transformed_to_reference_frame_grid_from(grid, xp=<module 'numpy' from '/home/docs/checkouts/readthedocs.org/user_builds/pyautogalaxy/envs/latest/lib/python3.11/site-packages/numpy/__init__.py'>, **kwargs)

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, xp=<module 'numpy' from '/home/docs/checkouts/readthedocs.org/user_builds/pyautogalaxy/envs/latest/lib/python3.11/site-packages/numpy/__init__.py'>, **kwargs)

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.