在Netlogo中是否可以创建由面片颜色定义的边界?

对于周长问题,如果我理解您的问题,您可以在面片设置中这样做,以在最大坐标处定义周长:

ask patches with [
    pxcor = max-pxcor or
    pxcor = min-pxcor or
    pycor = max-pycor or
    pycor = min-pycor ] [
    set pcolor red ;; This setup a red perimeter
  ]

否则,您可以选择这样的精确坐标(16x16正方形示例):

ask patches with [ pycor >= -16  and pycor >= 16] 
  [ set pcolor red ]
    ask patches with [ pycor <= -16  and pycor <= 16]
  [ set pcolor red ]
    ask patches with [ pxcor >= -16  and pxcor >= 16]
  [ set pcolor red ]
    ask patches with [ pxcor <= -16  and pxcor <= 16]
  [ set pcolor red ]

然后将其放在巡逻步骤中,以禁止在红色斑块上行走:

ifelse [pcolor] of patch-ahead 1 = red
      [ lt random-float 360 ]   ;; See a red patch ahead : turn left randomly
      [ fd 1 ]                  ;; Otherwise, its safe to go foward.