YY. GeoJSON

GeoJSON 反序列化工具, GeoJSON SPEC

creation

• constructor()

example

GeoJSON-江苏省

  let json = {
          "type": "Feature",
          "properties": {
              "name": "北京"
          },
          "geometry": {
              "type": "Point",
              "coordinates": [116.3671875, 39.977120098439634]
          }

          let point = YY.GeoJSON.toGeometry(json);
          vectorLayer.addOverlay(point);

          let json = {
              "type": "Feature",
              "properties": {},
              "geometry": {
                  "type": "LineString",
                  "coordinates": [
                      [
                          128.34228515625,
                          44.574817404670306
                      ],
                      [
                          131.19873046875,
                          44.465151013519616
                      ],
                      [
                          131.06689453125,
                          42.88401467044253
                      ],
                      [
                          132.967529296875,
                          42.374778361114195
                      ]
                  ]
              }
          }

          let line = YY.GeoJSON.toGeometry(json);
          vectorLayer.addOverlay(line);

method

TIP

static 表示静态方法, 即对象直接访问, 无需new

static toGeometry(json, fn)

• 将 geojson 序列化成 OverLayer 对象
• 参数
  • {Object} json: geojson
  • {function} fn: 回调函数
• 返回值： YY. Overlay||Array[YY. Overlay]

static get(url, fn)

• ajax 获取 geojson 数据
• 参数
  • {String} url: geojson url
  • {function} fn: 回调函数
• 返回值：