radial_distance¶
- astroimtools.utils.radial_distance(position, shape)[source]¶
Return an array where each value is the Euclidean distance from a given position.
- Parameters:
- positiontuple
An
(x, y)
tuple of pixel coordinates for the central position (i.e., zero radial distance).- shapetuple
The size of the output array along each axis.
- Returns:
- result
ndarray
An array containing the Euclidean radial distances from the input
position
.
- result
Examples
>>> from astroimtools import radial_distance >>> radial_distance((1, 1), (3, 3)) array([[1.41421356, 1. , 1.41421356], [1. , 0. , 1. ], [1.41421356, 1. , 1.41421356]])