如何从ArcGIS shapefile创建网络徽标中的链接

Question

我已经成功地加载了其他ArcGIS shapefile，例如，我正在尝试通过加载折线shapefile来绘制/创建链接的river polygon.However。以下是代码的摘录。

set river_area gis:load-dataset "River_data/April_28_2018_800m_Lines.shp"
set river_zones gis:load-dataset "River_data/May 5 2018_River_polygon_Zones.shp"
set polylines_links gis:load-dataset "River_data/Milford_Possible_routes_Polylines.shp"

下面是用于创建链接和节点的代码(来自其他来源)。我如何修改它以在我正在开发的代码上工作？

foreach polylines-of polylines_links node-precision [
    (foreach butlast ? butfirst ? [ if ?1 != ?2 [      
let n1 new-node-at first ?1 last ?1
      let n2 new-node-at first ?2 last ?2
      ask n1 [create-link-with n2]
    ]])
  ]

Answer 1

我猜这就是你要找的。祝你编码愉快！

foreach polylines-of polylines_links node-precision [
    x ->
    (foreach  butlast x butfirst x  [
      [a b] ->  if  a != b
      [
       let n1 new-node-at first a last a
       let n2 new-node-at first b last b
        ask n1 [create-link-with n2]
      ]
    ])
  ]