在Leaflet中可视化带有属性的线串

Question

我想可视化以下发送到我的Leaflet / JavaScript应用程序的GeoJSON对象。 我如何可视化所有线串，显示每个线串的properties.name参数（例如，通过ToolTip）。

{ “特征”：[{ “类型”： “功能”， “属性”：{ “名称”： “0”}， “几何”：{ “类型”： “线段形式”， “坐标”：[[10.941445541381836， 52.438697814941406]，[10.941454124450684,52.4387092590332]，[10.941451263427734,52.43870544433594]，[10.941445541381836,52.438697814941406]，[10.941254806518555,52.440738677978516]]}}，{ “类型”： “功能”， “属性”：{ “名称”：“0 “}，” 几何 “：{” 类型 “：” 线段形式”， “坐标”：[[10.941445541381836,52.438697814941406]，[10.941454124450684,52.4387092590332]，[10.941451263427734,52.43870544433594]，[10.941445541381836,52.438697814941406]，[10.941254806518555,52.440738677978516] ]}}}

任何帮助将是巨大的！

谢谢

Answer 1

您没有正确使用GeoJSON。 如果您具有多个功能，则应使用功能集合： https : //geojson.org/geojson-spec.html

然后使用此网站来具有正确的格式： https : //jsonformatter.curiousconcept.com/

然后，如果您想添加工具提示，请参考本教程： http : //leafletjs.com/examples/geojson/

var geojsonFeature = {
   "type":"FeatureCollection",
   "features":[
      {
         "type":"Feature",
         "geometry":{
            "type":"LineString",
            "coordinates":[
               [
                  10.941445541381836,
                  52.438697814941406
               ],
               [
                  10.941454124450684,
                  52.4387092590332
               ],
               [
                  10.941451263427734,
                  52.43870544433594
               ],
               [
                  10.941445541381836,
                  52.438697814941406
               ],
               [
                  10.941254806518555,
                  52.440738677978516
               ]
            ]
         },
         "properties":{
            "name":"0"
         }
      },
      {
         "type":"Feature",
         "geometry":{
            "type":"LineString",
            "coordinates":[
               [
                  10.941445541381836,
                  52.438697814941406
               ],
               [
                  10.941454124450684,
                  52.4387092590332
               ],
               [
                  10.941451263427734,
                  52.43870544433594
               ],
               [
                  10.941445541381836,
                  52.438697814941406
               ],
               [
                  10.941254806518555,
                  52.440738677978516
               ]
            ]
        },
        "properties":{
           "name":"0"
        }
      }
   ]
};

function onEachFeature(feature, layer) {
    // This is where it loop through your features
    if (feature.properties) {
        // If there is a properties document we bind a tooltip with your property : name
        layer.bindTooltip(feature.properties.name);
    }
}

L.geoJSON(geojsonFeature, {
    onEachFeature: onEachFeature
}).addTo(map);