Trying to adapt code

[github-throwaway]

I'm adapting the code for a 12x12 word clock without any minute LEDs and a Z-shaped wiring.

------->
0 1 2 3 4
<-------
9 8 7 6 5
-------->
......

I was wondering what the difference between setColorBy1DCoordinates in wiring.py and in wordclock_display.py is. Could you elaborate on this?