geoJson格式说明

发表于

GeoJSON

GeoJSON是一种对各种地理数据结构进行编码的格式，GeoJSON对象可以表示几何、特征或者特征集合。

GeoJSON支持下面几何类型：点、线、面、多点、多线、多面和几何集合。

GeoJSON里的特征包含一个几何对象和其他属性，特征集合表示一系列特征。


注：

  • GeoJSON对象可能有任何数目成员（名/值对）

  • GeoJSON对象必须由一个名字为type的成员，值必须是下面之一：

    1
    2
    Point, MultiPoint, LineString, MultiLineString, Polygon, MultiPolygon,
    GeometryCollection, Feature, FeatureCollection

  • GeoJSON对象可能有一个可选的crs成员，它的值必须是一个坐标参考系统的对象

  • GeoJSON对象可能有一个bbox成员，它的值必须是边界框数组


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{
  "type": "FeatureCollection",
  "features": [
    // 点
    {
      "type": "Feature",
      "geometry": {"type": "Point", "coordinates": [102.0, 0.5]},
      "properties": {"prop0": "value0"}
    },
    // 线
    {
      "type": "Feature",
      "geometry": {
        "type": "LineString",
        "coordinates": [
            [102.0, 0.0],
            [103.0, 1.0], 
            [104.0, 0.0], 
            [105.0, 1.0]
        ]
      },
      "properties": {
        "prop0": "value0",
        "prop1": 0.0
      }
    },
    // 面
    {
      "type": "Feature",
       "geometry": {
         "type": "Polygon",
         "coordinates": [
             [ 
               [100.0, 0.0], 
               [101.0, 0.0], 
               [101.0, 1.0],
               [100.0, 1.0], 
               [100.0, 0.0]
             ]
         ]
       },
       "properties": {
         "prop0": "value0",
         "prop1": {"this": "that"}
       }
    }
  ]
}


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{
    "type":"Feature",
    "properties":{

    },
    "geometry":{
        "type":"MultiPolygon",
        "coordinates":[
            // 多个Polygon
            [
                [
                    [101.6455078125,27.68352808378776],
                    [114.78515624999999,27.68352808378776],
                    [114.78515624999999,35.209721645221386],
                    [101.6455078125,35.209721645221386],
                    [101.6455078125,27.68352808378776]
                ]
            ],
            [
                [
                    [104.2822265625,30.107117887092357],
                    [108.896484375,30.107117887092357],
                    [108.896484375,33.76088200086917],
                    [104.2822265625,33.76088200086917],
                    [104.2822265625,30.107117887092357]
                ]
            ]
        ]
    }
}


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{
    "type":"Feature",
    "properties":{

    },
    "geometry":{
        "type":"MultiPolygon",
        "coordinates":[
            [
                // 多个LineString
                [
                    [101.6455078125,27.68352808378776],
                    [114.78515624999999,27.68352808378776],
                    [114.78515624999999,35.209721645221386],
                    [101.6455078125,35.209721645221386],
                    [101.6455078125,27.68352808378776]
                ],
                [
                    [104.2822265625,30.107117887092357],
                    [108.896484375,30.107117887092357],
                    [108.896484375,33.76088200086917],
                    [104.2822265625,33.76088200086917],
                    [104.2822265625,30.107117887092357]
                ]
            ]
        ]
    }
}

传送门：GeoJson在线预览、GeoJson在线获取