[Leaflet]如何改变每个区域的颜色并使其可编辑？
[Leaflet]How to change the color of each area and make it editable?
我在传单中创建了一张地图，这是示例图片
http://i58.tinypic.com/2a7xwqo.jpg
根据您看到的图片，左侧的边框区域是可编辑的，而世界其他地方则不可。现在我的问题是如何使右侧的地图与左侧的地图相同？我的意思是它们都是可编辑的，而世界其他地方不是？以及如何改变它们的颜色？
这是代码
<center> <div id="map" style="width: 1200px; height: 700px"></div></center>
<div id="menu">
<ul>
<td>
<br>
</td>
</table>
<br>
<script
src="http://cdn.leafletjs.com/leaflet-0.7/leaflet.js">
</script>
<script
src="http://leaflet.github.io/Leaflet.draw/leaflet.draw.js">
</script>
<script>
// credits: https://github.com/turban/Leaflet.Mask
L.Mask = L.Polygon.extend({
options: {
stroke: false,
color: '#333',
fillOpacity: 0.5,
clickable: true,
outerBounds: new L.LatLngBounds([-90, -360], [90, 360])
},
initialize: function (latLngs, options) {
var outerBoundsLatLngs = [
this.options.outerBounds.getSouthWest(),
this.options.outerBounds.getNorthWest(),
this.options.outerBounds.getNorthEast(),
this.options.outerBounds.getSouthEast()
];
L.Polygon.prototype.initialize.call(this, [outerBoundsLatLngs, latLngs], options);
},
});
L.mask = function (latLngs, options) {
return new L.Mask(latLngs, options);
};
// Polygon created with http://geojson.io/
var sanbartolome = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {},
"geometry": {
"type": "Polygon",
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};
var sanbartolome1 = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {},
"geometry": {
"type": "Polygon",
"coordinates": [
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]
};
var map = new L.Map('map');
var osmUrl='http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
var osmAttrib='Map data © OpenStreetMap contributors';
var osm = new L.TileLayer(osmUrl, {minZoom: 15, maxZoom: 18, attribution: osmAttrib});
map.addLayer(osm);
map.setView([14.7053533,121.031448],15);
// transform geojson coordinates into an array of L.LatLng
var coordinates = sanbartolome.features[0].geometry.coordinates[0];
var latLngs = [];
for (i=0; i<coordinates.length; i++) {
latLngs.push(new L.LatLng(coordinates[i][1], coordinates[i][0]));
}
L.mask(latLngs).addTo(map);
var layerpoly = new L.geoJson(sanbartolome.features,myStyle).addTo(map);
var layerpoly = new L.geoJson(sanbartolome1.features,myStyle).addTo(map);
var myStyle = {
"color": "#fff",
"weight": 5,
"opacity": 0.001,
};
</script>
TY
任何帮助都会很棒
目前地图上右侧的 GeoJSON 图层被您为左侧图层创建的遮罩覆盖。因此，如果您将正确的坐标添加到遮罩中，它也会使地图的那部分远离遮罩：
// Coordinates of first GeoJSON feature
var coordinates = sanbartolome.features[0].geometry.coordinates[0];
// Coordinates of second GeoJSON feature
var coordinates1 = sanbartolome1.features[0].geometry.coordinates[0];
// Empty array for storing all coordinates
var latLngs = [];
// Loop over first feature
for (i=0; i<coordinates.length; i++) {
// Add coordinates to array
latLngs.push(new L.LatLng(coordinates[i][1], coordinates[i][0]));
}
// Loop over second feature
for (i=0; i<coordinates1.length; i++) {
// Add coordinates to array
latLngs.push(new L.LatLng(coordinates1[i][1], coordinates1[i][0]));
}
// Instanciate mask with coordinates array
L.mask(latLngs).addTo(map);
现在这两个特征都不会被遮罩覆盖。至于颜色。创建 GeoJSON 层时，您首先使用名为 myStyle 的变量。然后，您声明它。那永远行不通。您首先需要声明一个变量，然后才能使用它。您可能已经在您的控制台中看到了这一点，因为它会抛出一个错误：myStyle is not defined。此外，您尝试执行的操作也不正确。 L.GeoJSON 采用一个选项数组，其样式 属性 应包含一个函数，该函数 returns 一个具有样式属性的对象。正确的方法是：
// First declare options object
var options = {
style: function (feature) {
return {
"color": "yellow",
"weight": 5,
"opacity": 0.001,
"fillColor": "red",
"fillOpacity": 0.1
};
}
};
// Then use the options object
var layerpoly = new L.geoJson(sanbartolome.features,options).addTo(map);
var layerpoly1 = new L.geoJson(sanbartolome1.features,options).addTo(map);
这是一个关于 Plunker 的工作示例：http://plnkr.co/edit/1I7dIw?p=preview
我在传单中创建了一张地图，这是示例图片
http://i58.tinypic.com/2a7xwqo.jpg
根据您看到的图片，左侧的边框区域是可编辑的，而世界其他地方则不可。现在我的问题是如何使右侧的地图与左侧的地图相同？我的意思是它们都是可编辑的，而世界其他地方不是？以及如何改变它们的颜色？
这是代码
<center> <div id="map" style="width: 1200px; height: 700px"></div></center>
<div id="menu">
<ul>
<td>
<br>
</td>
</table>
<br>
<script
src="http://cdn.leafletjs.com/leaflet-0.7/leaflet.js">
</script>
<script
src="http://leaflet.github.io/Leaflet.draw/leaflet.draw.js">
</script>
<script>
// credits: https://github.com/turban/Leaflet.Mask
L.Mask = L.Polygon.extend({
options: {
stroke: false,
color: '#333',
fillOpacity: 0.5,
clickable: true,
outerBounds: new L.LatLngBounds([-90, -360], [90, 360])
},
initialize: function (latLngs, options) {
var outerBoundsLatLngs = [
this.options.outerBounds.getSouthWest(),
this.options.outerBounds.getNorthWest(),
this.options.outerBounds.getNorthEast(),
this.options.outerBounds.getSouthEast()
];
L.Polygon.prototype.initialize.call(this, [outerBoundsLatLngs, latLngs], options);
},
});
L.mask = function (latLngs, options) {
return new L.Mask(latLngs, options);
};
// Polygon created with http://geojson.io/
var sanbartolome = {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"properties": {},
"geometry": {
"type": "Polygon",
"coordinates": [
[
[
121.0207986831665,
14.71238001066067
],
[
121.02015495300293,
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],
[
121.01968288421631,
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],
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var sanbartolome1 = {
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{
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var map = new L.Map('map');
var osmUrl='http://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png';
var osmAttrib='Map data © OpenStreetMap contributors';
var osm = new L.TileLayer(osmUrl, {minZoom: 15, maxZoom: 18, attribution: osmAttrib});
map.addLayer(osm);
map.setView([14.7053533,121.031448],15);
// transform geojson coordinates into an array of L.LatLng
var coordinates = sanbartolome.features[0].geometry.coordinates[0];
var latLngs = [];
for (i=0; i<coordinates.length; i++) {
latLngs.push(new L.LatLng(coordinates[i][1], coordinates[i][0]));
}
L.mask(latLngs).addTo(map);
var layerpoly = new L.geoJson(sanbartolome.features,myStyle).addTo(map);
var layerpoly = new L.geoJson(sanbartolome1.features,myStyle).addTo(map);
var myStyle = {
"color": "#fff",
"weight": 5,
"opacity": 0.001,
};
</script>
TY
任何帮助都会很棒目前地图上右侧的 GeoJSON 图层被您为左侧图层创建的遮罩覆盖。因此，如果您将正确的坐标添加到遮罩中，它也会使地图的那部分远离遮罩：
// Coordinates of first GeoJSON feature
var coordinates = sanbartolome.features[0].geometry.coordinates[0];
// Coordinates of second GeoJSON feature
var coordinates1 = sanbartolome1.features[0].geometry.coordinates[0];
// Empty array for storing all coordinates
var latLngs = [];
// Loop over first feature
for (i=0; i<coordinates.length; i++) {
// Add coordinates to array
latLngs.push(new L.LatLng(coordinates[i][1], coordinates[i][0]));
}
// Loop over second feature
for (i=0; i<coordinates1.length; i++) {
// Add coordinates to array
latLngs.push(new L.LatLng(coordinates1[i][1], coordinates1[i][0]));
}
// Instanciate mask with coordinates array
L.mask(latLngs).addTo(map);
现在这两个特征都不会被遮罩覆盖。至于颜色。创建 GeoJSON 层时，您首先使用名为 myStyle 的变量。然后，您声明它。那永远行不通。您首先需要声明一个变量，然后才能使用它。您可能已经在您的控制台中看到了这一点，因为它会抛出一个错误：myStyle is not defined。此外，您尝试执行的操作也不正确。 L.GeoJSON 采用一个选项数组，其样式 属性 应包含一个函数，该函数 returns 一个具有样式属性的对象。正确的方法是：
// First declare options object
var options = {
style: function (feature) {
return {
"color": "yellow",
"weight": 5,
"opacity": 0.001,
"fillColor": "red",
"fillOpacity": 0.1
};
}
};
// Then use the options object
var layerpoly = new L.geoJson(sanbartolome.features,options).addTo(map);
var layerpoly1 = new L.geoJson(sanbartolome1.features,options).addTo(map);
这是一个关于 Plunker 的工作示例：http://plnkr.co/edit/1I7dIw?p=preview