EulerAngleRotation#

class astropy.modeling.rotations.EulerAngleRotation(phi, theta, psi, axes_order, **kwargs)[source]#

Bases: _EulerRotation, Model

Implements Euler angle intrinsic rotations.

Rotates one coordinate system into another (fixed) coordinate system. All coordinate systems are right-handed. The sign of the angles is determined by the right-hand rule..

Parameters:

phi, theta, psifloat or Quantity [:ref: ‘angle’]: “proper” Euler angles in deg. If floats, they should be in deg.
axes_orderstr: A 3 character string, a combination of ‘x’, ‘y’ and ‘z’, where each character denotes an axis in 3D space.

Attributes Summary

`n_inputs`	The number of inputs.
`n_outputs`	The number of outputs.
`param_names`	Names of the parameters that describe models of this type.
`phi`
`psi`
`theta`

Methods Summary

`__call__`(*inputs[, model_set_axis, ...])	Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated.
`evaluate`(alpha, delta, phi, theta, psi)	Evaluate the model on some input variables.

Attributes Documentation

n_inputs = 2#: The number of inputs.

n_outputs = 2#: The number of outputs.

param_names = ('phi', 'theta', 'psi')#

Names of the parameters that describe models of this type.

The parameters in this tuple are in the same order they should be passed in when initializing a model of a specific type. Some types of models, such as polynomial models, have a different number of parameters depending on some other property of the model, such as the degree.

When defining a custom model class the value of this attribute is automatically set by the Parameter attributes defined in the class body.

phi = Parameter('phi', value=0.0)#

psi = Parameter('psi', value=0.0)#

theta = Parameter('theta', value=0.0)#

Methods Documentation

__call__(*inputs, model_set_axis=None, with_bounding_box=False, fill_value=nan, equivalencies=None, inputs_map=None, **new_inputs)#: Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated.

evaluate(alpha, delta, phi, theta, psi)[source]#: Evaluate the model on some input variables.