Rotation2D

class astropy.modeling.rotations.Rotation2D(angle=0.0)

Bases: astropy.modeling.Model

Perform a 2D rotation given an angle in degrees.

Positive angles represent a counter-clockwise rotation and vice-versa.

Parameters:

angle : float

angle of rotation in deg

Attributes Summary

angle
input_names	list() -> new empty list
n_inputs	int(x=0) -> int or long
n_outputs	int(x=0) -> int or long
param_names	list() -> new empty list

Methods Summary

eval(*args, **kwargs)	Deprecated since version 1.0.
evaluate(x, y, angle)	Apply the rotation to a set of 2D Cartesian coordinates given as two lists–one for the x coordinates and one for a y coordinates–or a single coordinate pair.
inverse()	Inverse rotation.

Attributes Documentation

angle

input_names = []

n_inputs = 2

n_outputs = 2

param_names = ['angle']

Methods Documentation

eval(*args, **kwargs)

Deprecated since version 1.0: The eval function is deprecated and may be removed in a future version. Use Rotation2D.evaluate instead.

Apply the rotation to a set of 2D Cartesian coordinates given as two lists–one for the x coordinates and one for a y coordinates–or a single coordinate pair.

Parameters:

x, y : array, float

x and y coordinates

evaluate(x, y, angle)

Apply the rotation to a set of 2D Cartesian coordinates given as two lists–one for the x coordinates and one for a y coordinates–or a single coordinate pair.

Parameters:

x, y : array, float

x and y coordinates

inverse()

Inverse rotation.