'Maxicode' uses a hexagonal pattern to encode the data - it's probably how this idea would evolve if you wanted to store the data in the pattern itself: https:

'Maxicode' uses a hexagonal pattern to encode the data - it's probably how this idea would evolve if you wanted to store the data in the pattern itself: https://en.wikipedia.org/wiki/MaxiCode https://en.wikipedia.org/wiki/MaxiCode