问题描述
使用了两个文件，以便可以在带有Open Layers映射的html页面上公开跟踪traccar gps设备，该页面带有从traccar服务器生成的traccar用户令牌。
现在我看到“开放层”也在使用Bing地图，那么我可以将Bing地图用作traccar的默认嵌入式地图，而不是此默认开放层地图吗？
这是追踪车的原始两个文件（一个是 js 文件，另一个是 html 文件），该文件用于在html页面上获取嵌入式地图：
* copyright 2016 - 2017 Anton Tananaev (anton@traccar.org)
*
* Licensed under the Apache License,Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,software
* distributed under the License is distributed on an "AS IS" BASIS,* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
if (!Array.prototype.find) {
Object.defineProperty(Array.prototype,"find",{
value: function(predicate) {
var value;
for (var i = 0; i < this.length; i++) {
value = this[i];
if (predicate.call(arguments[1],value,i,this)) {
return value;
}
}
return undefined;
}
});
}
var getQueryParameter = function(name) {
return (window.location.search.match('[?&]' + name + '=([^&]*)') || [])[1];
};
var url = window.location.protocol + '//' + window.location.host;
var token = getQueryParameter('token');
var style = function (label) {
return new ol.style.Style({
image: new ol.style.Circle({
fill: new ol.style.Fill({
color: 'teal'
}),stroke: new ol.style.stroke({
color: 'black',width: 2
}),radius: 7
}),text: new ol.style.Text({
text: label,fill: new ol.style.Fill({
color: 'black'
}),stroke: new ol.style.stroke({
color: 'white',font: 'bold 12px sans-serif',offsetY: -16
})
});
};
var source = new ol.source.Vector();
var markers = {};
var map = new ol.Map({
layers: [
new ol.layer.Tile({
source: new ol.source.OSM()
}),new ol.layer.Vector({
source: source
})
],target: 'map',view: new ol.View({
center: ol.proj.fromLonLat([0,0]),zoom: 2
})
});
var ajax = function (method,url,callback) {
var xhr = new XMLHttpRequest();
xhr.withCredentials = true;
xhr.open(method,true);
xhr.onreadystatechange = function () {
if (xhr.readyState == 4) {
callback(JSON.parse(xhr.responseText));
}
};
if (method == 'POST') {
xhr.setRequestHeader('Content-type','application/json');
}
xhr.send()
};
ajax('GET',url + '/api/server',function(server) {
ajax('GET',url + '/api/session?token=' + token,function(user) {
map.getView().setCenter(ol.proj.fromLonLat([
parseFloat(getQueryParameter('longitude')) || user.longitude || server.longitude || 0.0,parseFloat(getQueryParameter('latitude')) || user.latitude || server.latitude || 0.0
]));
map.getView().setZoom(parseFloat(getQueryParameter('zoom')) || user.zoom || server.zoom || 2);
ajax('GET',url + '/api/devices',function(devices) {
var socket = new WebSocket('ws' + url.substring(4) + '/api/socket');
socket.onclose = function (event) {
console.log('socket closed');
};
socket.onmessage = function (event) {
var data = JSON.parse(event.data);
if (data.positions) {
for (i = 0; i < data.positions.length; i++) {
var position = data.positions[i];
var marker = markers[position.deviceid];
var point = new ol.geom.Point(ol.proj.fromLonLat([position.longitude,position.latitude]));
if (!marker) {
var device = devices.find(function (device) { return device.id === position.deviceid });
marker = new ol.Feature(point);
marker.setStyle(style(device.name));
markers[position.deviceid] = marker;
source.addFeature(marker);
} else {
marker.setGeometry(point);
}
}
}
};
});
});
});
第二个文件是index.html
<html>
<head>
<Meta charset="UTF-8">
<Meta name="viewport" content="width=device-width,initial-scale=1,maximum-scale=1,user-scalable=no">
<title>traccar</title>
<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.20.1/ol.css" type="text/css">
</head>
<body style="margin: 0; padding: 0;">
<div id="map" style="width: 100%; height: 100%; position:fixed;"></div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ol3/3.20.1/ol.js" type="text/javascript"></script>
<script id="loadScript" src="app.js"></script>
</body>
</html>
这是开放层必应地图，我想将其用作嵌入式html页面上的默认地图，其中包含三个文件（来源：Open Layers Bing Map）
import BingMaps from 'ol/source/BingMaps';
import Map from 'ol/Map';
import TileLayer from 'ol/layer/Tile';
import View from 'ol/View';
var styles = [
'Roadondemand','Aerial','AerialWithLabelsondemand','CanvasDark','OrdnanceSurvey' ];
var layers = [];
var i,ii;
for (i = 0,ii = styles.length; i < ii; ++i) {
layers.push(
new TileLayer({
visible: false,preload: Infinity,source: new BingMaps({
key: 'Your Bing Maps Key from http://www.bingmapsportal.com/ here',imagerySet: styles[i],// use maxZoom 19 to see stretched tiles instead of the BingMaps
// "no photos at this zoom level" tiles
// maxZoom: 19
}),})
);
}
var map = new Map({
layers: layers,view: new View({
center: [-6655.5402445057125,6709968.258934638],zoom: 13,}),});
var select = document.getElementById('layer-select');
function onChange() {
var style = select.value;
for (var i = 0,ii = layers.length; i < ii; ++i) {
layers[i].setVisible(styles[i] === style);
}
}
select.addEventListener('change',onChange);
onChange();
第二个文件是index.html
<html lang="en">
<head>
<title>Bing Maps</title>
<!-- Pointer events polyfill for old browsers,see https://caniuse.com/#feat=pointer -->
<script src="https://unpkg.com/elm-pep"></script>
<style>
.map {
width: 100%;
height:400px;
}
</style>
</head>
<body>
<div id="map" class="map"></div>
<select id="layer-select">
<option value="Aerial">Aerial</option>
<option value="AerialWithLabelsondemand" selected>Aerial with labels</option>
<option value="Roadondemand">Road</option>
<option value="CanvasDark">Road dark</option>
<option value="OrdnanceSurvey">Ordnance Survey</option>
</select>
<script src="main.js"></script>
</body>
</html>
"name": "bing-maps","dependencies": {
"ol": "6.4.3"
},"devDependencies": {
"parcel": "1.11.0"
},"scripts": {
"start": "parcel index.html","build": "parcel build --experimental-scope-hoisting --public-url . index.html"
}
}
我的问题是，如何将traccar嵌入的html页面用于Open Layers Bing地图？
解决方法
用Bing路线图替换OpenStreetMap
更改
source: new ol.source.OSM()
到
source: new ol.source.BingMaps({
key: 'xxxxxx',imagerySet: 'RoadOnDemand'
})
（用https://www.microsoft.com/en-us/maps/create-a-bing-maps-key中的API密钥替换xxxxxx）