leaflet保存pm绘图geojson数据

//生成geojson数据
function CreateGeoJson() {
    var layerArray = new Array();
    map.eachLayer(function (layer) {
        if (layer.pm != 'undefined' && layer.pm != null && layer.pm != '') {
            if (layer.pm._enabled == false && layer.pm.options.draggable == true) {
                layerArray.push(layer);
            }
        }
    })
    var geojson = L.layerGroup(layerArray).toGeoJSON();
    for (var n = 0; n < geojson.features.length; n++) {
        var nowJson = JSON.stringify(geojson.features[n]);
        for (var m = n + 1; m < geojson.features.length; m++) {
            var nextJson = JSON.stringify(geojson.features[m]);
            if (nowJson == nextJson) {
                geojson.features.splice(n, 1);
            }
        }
    }
    return geojson;
}


//重新加载geojson数据
L.geoJson(geojson).addTo(map);

转载自：https://blog.csdn.net/STRIVEYe/article/details/88306935