{
  "type": "FeatureCollection",
  "features": [
    {
      "type": "Feature",
      "properties": {
        "name": "北京首都国际机场",
        "category": "Airport"
      },
      "geometry": {
        "type": "Point",
        "coordinates": [116.5873, 40.0779]
      }
    },
    {
      "type": "Feature",
      "properties": {
        "name": "示例区域",
        "category": "Park"
      },
      "geometry": {
        "type": "Polygon",
        "coordinates": [
          [
            [116.38, 39.90],
            [116.40, 39.90],
            [116.40, 39.92],
            [116.38, 39.92],
            [116.38, 39.90]
          ]
        ]
      }
    }
  ]
}