AffineTransformation2D¶
-
class
astropy.modeling.projections.
AffineTransformation2D
(matrix=[[1.0, 0.0], [0.0, 1.0]], translation=[0.0, 0.0], **kwargs)[source] [edit on github]¶ Bases:
astropy.modeling.Model
Perform an affine transformation in 2 dimensions.
Parameters: matrix : array
A 2x2 matrix specifying the linear transformation to apply to the inputs
translation : array
A 2D vector (given as either a 2x1 or 1x2 array) specifying a translation to apply to the inputs
Attributes Summary
inputs
matrix
outputs
param_names
standard_broadcasting
translation
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, matrix, translation)Apply the transformation 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. Attributes Documentation
-
inputs
= ('x', 'y')¶
-
matrix
¶
-
outputs
= ('x', 'y')¶
-
param_names
= ('matrix', 'translation')¶
-
standard_broadcasting
= False¶
-
translation
¶
Methods Documentation
-
__call__
(x, y, model_set_axis=None, with_bounding_box=False, fill_value=nan, equivalencies=None) [edit on github]¶ Evaluate this model using the given input(s) and the parameter values that were specified when the model was instantiated.
-
classmethod
evaluate
(x, y, matrix, translation)[source] [edit on github]¶ Apply the transformation 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
-