Created
December 11, 2019 14:51
-
-
Save bombsimon/bd92fe84b9b6ef4a27affc976265bbd1 to your computer and use it in GitHub Desktop.
Get the outer frame coordiantes from a 2D array
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
def outer_coordiantes(arr): | |
""" | |
Get the outer most coordiantes for a 2D array, starting at 0,0. | |
>>> outer_coordiantes([[0,0,0],[0,0,0][0,0,0]]) | |
[(0,0), (0,1), (0,2), (1,2), (2,2), (2,1), (2,0), (1,0)] | |
""" | |
# Top row | |
frame_coordiantes = [(0, x) for x in range(len(arr[0]) - 1)] | |
# Right row | |
frame_coordiantes += [(x, len(arr) - 1) for x in range(len(arr) - 1)] | |
# Bottom row | |
frame_coordiantes += [ | |
(len(arr[0]) - 1, x) for x in reversed(range(len(arr[0]))) | |
] | |
# Left row | |
frame_coordiantes += [(x, 0) for x in reversed(range(1, len(arr) - 1))] | |
return frame_coordiantes |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment