我的目标是有一张地图，我可以添加标记/多边形/ ...这些元素将保存到对象中以便保存。以后可以编辑/删除或添加绘制的元素。
我已成功设法创建/编辑/删除它们，但是当我使用保存的对象初始化我的地图时，它们无法再次编辑。
工作小提琴：http://jsfiddle.net/4fq6m3dc/1/
我的代码：
leafletData.getMap().then(function (map) {
var drawnItems = $scope.controls.edit.featureGroup;
// Init the map with the saved elements
for (var i = 0; i < $scope.savedItems.length; i++) {
layer = new L.GeoJSON($scope.savedItems[i].geoJSON);
drawnItems.addLayer(layer);
}
map.on('draw:created', function (e) {
var layer = e.layer;
drawnItems.addLayer(layer);
$scope.savedItems.push({
id: layer._leaflet_id,
geoJSON: layer.toGeoJSON()
});
});
map.on('draw:edited', function (e) {
var layers = e.layers;
layers.eachLayer(function (layer) {
for (var i = 0; i < $scope.savedItems.length; i++) {
if ($scope.savedItems[i].id == layer._leaflet_id) {
$scope.savedItems[i].geoJSON = layer.toGeoJSON();
}
}
});
});
map.on('draw:deleted', function (e) {
var layers = e.layers;
layers.eachLayer(function (layer) {
for (var i = 0; i < $scope.savedItems.length; i++) {
if ($scope.savedItems[i].id == layer._leaflet_id) {
$scope.savedItems.splice(i, 1);
}
}
});
});
});
答案 0 :(得分：3)
我修改了你的代码，似乎我已经修复了你的错误。这是我的代码。
<!DOCTYPE html>
<html ng-app="demoapp">
<head>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<script src="http://tombatossals.github.io/angular-leaflet-directive/bower_components/angular/angular.min.js"></script>
<script src="http://tombatossals.github.io/angular-leaflet-directive/bower_components/leaflet/dist/leaflet.js"></script>
<script src="http://tombatossals.github.io/angular-leaflet-directive/dist/angular-leaflet-directive.min.js"></script>
<script src="http://tombatossals.github.io/angular-leaflet-directive/bower_components/leaflet.draw/dist/leaflet.draw.js"></script>
<link rel="stylesheet" href="http://tombatossals.github.io/angular-leaflet-directive/bower_components/leaflet/dist/leaflet.css" />
<link rel="stylesheet" href="http://tombatossals.github.io/angular-leaflet-directive/bower_components/leaflet.draw/dist/leaflet.draw.css" />
<script>
var app = angular.module("demoapp", ["leaflet-directive"]);
app.controller("ControlsDrawController", ["$scope", "leafletData", function($scope, leafletData) {
$scope.savedItems = [{
"id": 721,
"geoJSON": {
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [-0.626220703125,
48.1367666796927
]
}
}
}, {
"id": 724,
"geoJSON": {
"type": "Feature",
"geometry": {
"type": "Point",
"coordinates": [-0.274658203125,
49.13859653703879
]
}
}
}, {
"id": 725,
"geoJSON": {"type":"Feature","properties":{},"geometry":{"type":"Polygon","coordinates":[[[-18.10546875,53.38332836757156],[-10.107421874999998,55.92458580482951],[-3.33984375,53.9560855309879],[-10.634765625,47.635783590864854],[-17.2265625,45.767522962149904],[-18.10546875,53.38332836757156]]]}}
}];
var drawnItems = new L.FeatureGroup();
for (var i = 0; i < $scope.savedItems.length; i++) {
L.geoJson($scope.savedItems[i].geoJSON, {
style: function(feature) {
return {
color: '#bada55'
};
},
onEachFeature: function (feature, layer) {
drawnItems.addLayer(layer);
}
});
}
angular.extend($scope, {
london: {
lat: 51.505,
lng: -0.09,
zoom: 4
},
controls: {
draw: {},
edit: {
featureGroup: drawnItems
}
}
});
leafletData.getMap().then(function(map) {
var drawnItems = $scope.controls.edit.featureGroup;
// Init the map with the saved elements
var printLayers = function () {
console.log("After: ");
map.eachLayer(function(layer) {
console.log(layer);
});
};
drawnItems.addTo(map);
printLayers();
map.on('draw:created', function(e) {
var layer = e.layer;
drawnItems.addLayer(layer);
console.log(JSON.stringify(layer.toGeoJSON()));
$scope.savedItems.push({
id: layer._leaflet_id,
geoJSON: layer.toGeoJSON()
});
});
map.on('draw:edited', function(e) {
var layers = e.layers;
layers.eachLayer(function(layer) {
for (var i = 0; i < $scope.savedItems.length; i++) {
if ($scope.savedItems[i].id == layer._leaflet_id) {
$scope.savedItems[i].geoJSON = layer.toGeoJSON();
}
}
});
});
map.on('draw:deleted', function(e) {
var layers = e.layers;
layers.eachLayer(function(layer) {
for (var i = 0; i < $scope.savedItems.length; i++) {
if ($scope.savedItems[i].id == layer._leaflet_id) {
$scope.savedItems.splice(i, 1);
}
}
});
});
});
}]);
</script>
<style>
input {
width: 120px;
margin-right: 10px;
}
</style>
</head>
<body ng-controller="ControlsDrawController">
<leaflet center="london" controls="controls" width="100%" height="400"></leaflet>
<h1>Draw control example</h1>
<p>Draw a shape and a geoJSON data structure will be shown on the console.log.</p>
</body>
</html>