Sort patches by id

user_9744837 0
Viewed 24

I know that patches are sorted with the top left-most patch first and the bottom right-most patch last. My question is: if patches have an id patches-own[id] is it possible to sort patches by id. I don't want a list but an agenset?

Thanks

netlogo patch sorting
1 Answers

Alas, as noted here

https://ccl.northwestern.edu/netlogo/docs/programming.html#agentsets

agentsets are always in random order. As you likely know, however, you can make an ordered list of patches by id and then loop or map through it. The sort-on primitive will do that. As an example,

patches-own [ id ]
to test
  ask patches [set id random 10000]  ; assign random ids to patches
  let sorted-patches sort-on [id] patches
  show sorted-patches
  show map [[p] -> [id] of p] sorted-patches
end

gives you a sorted list of the patch ids.

Charles

user_29319250
Related