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在index.html中引入
<script charset="utf-8" src="https://map.qq.com/api/gljs?v=1.exp&key=IVJBZ-PXLCP-GURDR-VROBE-4HQAF-U4FDK"></script>
main.js jsonp的回调函数,必须在window下,不然指向不到
- // 腾讯地图--做路线规划
- window.cb = function(ret) {
- var coords = ret.result.routes[0].polyline,
- pl = [];
- //坐标解压(返回的点串坐标,通过前向差分进行压缩)
- var kr = 1000000;
- for (var i = 2; i < coords.length; i++) {
- coords[i] = Number(coords[i - 2]) + Number(coords[i]) / kr;
- }
- //将解压后的坐标放入点串数组pl中
- for (var i = 0; i < coords.length; i += 2) {
- pl.push(new TMap.LatLng(coords[i], coords[i + 1]));
- }
- display_polyline(pl); //显示路线
- //标记起终点marker
-
- }
-
- window.display_polyline = function(pl) {
- //创建 MultiPolyline显示折线
- var polylineLayer = new TMap.MultiPolyline({
- id: "polyline-layer", //图层唯一标识
- map: map, //绘制到目标地图
- //折线样式定义
- styles: {
- style_blue: new TMap.PolylineStyle({
- color: "#3777FF", //线填充色
- width: 8, //折线宽度
- borderWidth: 5, //边线宽度
- borderColor: "#FFF", //边线颜色
- lineCap: "round", //线端头方式
- }),
- },
- //折线数据定义
- geometries: [
- {
- id: "pl_1", //折线唯一标识,删除时使用
- styleId: "style_blue", //绑定样式名
- paths: pl,
- },
- ],
- });
- }
地图
- <div id="mapContainer"></div>
- initMap() {
- //初始化地图
- window.map = new TMap.Map(document.getElementById("mapContainer"), {
- center: new TMap.LatLng(34.22621,108.884623), //地图显示中心点,经纬度
- zoom: 14, //缩放级别
- disableDefaultUI: true,
- });
- //WebServiceAPI请求URL(驾车路线规划默认会参考实时路况进行计算)
- var url = `https://apis.map.qq.com/ws/direction/v1/driving/?from=${this.orderLocationList[0].latitude},${this.orderLocationList[0].longitude}&to=${this.orderLocationList[1].latitude},${this.orderLocationList[1].longitude}&output=jsonp&callback=cb&key=IVJBZ-PXLCP-GURDR-VROBE-4HQAF-U4FDK`
- this.jsonp_request(url);
- var marker = new TMap.MultiMarker({
- id: "marker-layer",
- map: map,
- styles: {
- start: new TMap.MarkerStyle({
- width: 25,
- height: 35,
- anchor: { x: 16, y: 32 },
- src:"https://mapapi.qq.com/web/lbs/javascriptGL/demo/img/start.png",
- }),
- end: new TMap.MarkerStyle({
- width: 25,
- height: 35,
- anchor: { x: 16, y: 32 },
- src: "https://mapapi.qq.com/web/lbs/javascriptGL/demo/img/end.png",
- }),
- },
- geometries: [
- {
- id: "start",
- styleId: "start",
- position: new TMap.LatLng(34.22621,108.884623),
- },
- {
- id: "end",
- styleId: "end",
- position: new TMap.LatLng(34.22621,108.884623),
- },
- ],
- });
- },
- //浏览器调用WebServiceAPI需要通过Jsonp的方式,此处定义了发送JOSNP请求的函数
- jsonp_request(url) {
- var script = document.createElement("script");
- script.src = url;
- document.body.appendChild(script);
- }
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