# InverseSIP¶

class astropy.modeling.polynomial.InverseSIP(ap_order, bp_order, ap_coeff={}, bp_coeff={}, n_models=None, model_set_axis=None, name=None, meta=None)[source]

Inverse Simple Imaging Polynomial

Parameters: ap_order : int order for the inverse transformation (AP coefficients) bp_order : int order for the inverse transformation (BP coefficients) ap_coeff : dict coefficients for the inverse transform bp_coeff : dict coefficients for the inverse transform

Attributes Summary

Methods Summary

 __call__(x, y[, model_set_axis, …]) Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated. evaluate(x, y) Evaluate the model on some input variables.

Attributes Documentation

inputs = ('x', 'y')
outputs = ('u', 'v')

Methods Documentation

__call__(x, y, model_set_axis=None, with_bounding_box=False, fill_value=nan, equivalencies=None)

Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated.

evaluate(x, y)[source]

Evaluate the model on some input variables.