IdealToV2V3

class stdatamodels.jwst.transforms.IdealToV2V3(v3idlyangle, v2ref, v3ref, vparity, name='idl2V', **kwargs)

Bases: Model

Perform the transform from Ideal to telescope V2,V3 coordinate system.

The two systems have the same origin: V2_REF, V3_REF.

Note that this model has no schema implemented.

Attributes Summary

`n_inputs`
`n_outputs`
`param_names`	Names of the parameters that describe models of this type.
`v2ref`
`v3idlyangle`
`v3ref`
`vparity`

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`(xidl, yidl, v3idlyangle, v2ref, ...)	Transform from Ideal to V2, V3 telescope system.

Attributes Documentation

n_inputs = 2

n_outputs = 2

param_names = ('v3idlyangle', 'v2ref', 'v3ref', 'vparity')

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 ~astropy.modeling.Parameter attributes defined in the class body.

v2ref

v3idlyangle

v3ref

vparity

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.

static evaluate(xidl, yidl, v3idlyangle, v2ref, v3ref, vparity)

Transform from Ideal to V2, V3 telescope system.

Parameters:

xidl, yidlndarray-like: Coordinates in Ideal System [in arcsec]
v3idlyanglefloat: Angle between Ideal Y-axis and V3 [ in deg]
v2ref, v3refndarray-like: Coordinates in V2, V3 [in arcsec]
vparityint: Parity.

Returns:

v2, v3ndarray-like: Coordinates in the (V2, V3) telescope system [in arcsec].