/usr/lib/python3/dist-packages/reproject/spherical_intersect/overlap.py is in python3-reproject 0.3.1-4.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 | from __future__ import (absolute_import, division, print_function,
unicode_literals)
import numpy as np
from ._overlap import _compute_overlap
__all__ = ['compute_overlap']
def compute_overlap(ilon, ilat, olon, olat):
"""Compute the overlap between two 'pixels' in spherical coordinates.
Parameters
----------
ilon : np.ndarray with shape (N, 4)
The longitudes (in radians) defining the four corners of the input pixel
ilat : np.ndarray with shape (N, 4)
The latitudes (in radians) defining the four corners of the input pixel
olon : np.ndarray with shape (N, 4)
The longitudes (in radians) defining the four corners of the output pixel
olat : np.ndarray with shape (N, 4)
The latitudes (in radians) defining the four corners of the output pixel
Returns
-------
overlap : np.ndarray of length N
Pixel overlap solid angle in steradians
area_ratio : np.ndarray of length N
TODO
"""
ilon = np.asarray(ilon, dtype=np.float64)
ilat = np.asarray(ilat, dtype=np.float64)
olon = np.asarray(olon, dtype=np.float64)
olat = np.asarray(olat, dtype=np.float64)
return _compute_overlap(ilon, ilat, olon, olat)
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