Question

我有一个netlogo gis模型。 gis形状文件包含建筑物覆盖区（以多边形的形式）。我想在特定建筑物的中心创建一个ID为“ 66445345”（多边形ID）的品种。没有很多建筑物/多边形，但我只想在这个多边形上建立品种任何想法如何做到这一点？

breed [blds bld]

set guo-building gis:load-dataset "guo-building.shp"
gis:drawing-color gray
gis:draw guo-buildings 1.0

foreach gis:vertex-list-of guo-buildings[
    i ->
    let bld-no gis:property-value i "id"
    let center gis:centroid-of i
    let center-location gis:location-of center

    if bld-no = 66445345
      [create-blds 1
      [
       set xcor (item 0 center-location)
       set ycor (item 1 center-location)
       set color red
       set size 5
      ]
      ]
]

Answer 1

对问题进行了排序。需要插入blds-own变量并存储ID。

breeds [blds bld]
breeds-own [building-no]
to setup-pma-locations
foreach gis:feature-list-of guo-buildings[
i ->
  let bld-no gis:property-value i "ID"
  let center gis:centroid-of i 
  let center-coordinates gis:location-of center

  if not empty? center-coordinates [
    create-blds 1
    [
     set xcor (item 0 center-coordinates)
     set ycor (item 1 center-coordinates)
     set color red
     set size 0
     set building-no bld-no  ;store in blds-own variable
    ]

    ]
    ] 
ask blds[
let pma blds with [building-no = "66445345"]
  ask pma [set color red
  set size 5]
]

Netlogo，在特定多边形的中心创建品种（即ID = 123456）

1 个答案: