我有一个网络徽标 GIS 模型。 GIS 形状文件由建筑物覆盖区(多边形形式(组成。我想在特定建筑物的中心创建一个品种,id = "66445345"(多边形 id(。建筑物/多边形的数量很多,但我只对在这个多边形上创建品种感兴趣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
]
]
]
对问题进行了排序。需要插入 blds 自己的变量和存储 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]
]