Link Breeds Example

;; every link breed must be declared as either directed or undirected
directed-link-breed [red-links red-link]
undirected-link-breed [blue-links blue-link]

blue-links-own [ weight ]  ;; link breeds can own variables just like turtle breeds

to setup
  clear-all
  create-ordered-turtles 10 [
    fd 5
    set color gray
  ]
  ask n-of 5 turtles [
    ;; create--with is used to make undirected links
    create-blue-link-with one-of other turtles [
      set color blue
      set weight random 10
      set label weight
    ]
  ]
  ;; different breeds can have different default shapes
  set-default-shape red-links "curved link"
  ask n-of 5 turtles [
    ;; create--to/from are used to make directed links
    create-red-link-to one-of other turtles [
      set color red
    ]
  ]
end 


; Public Domain:
; To the extent possible under law, Uri Wilensky has waived all
; copyright and related or neighboring rights to this model.