时间:2021-02-17 14:03:53 | 栏目:vue | 点击:次
1.在index.html引入高德地图JSAPI
<script src="https://webapi.amap.com/maps?v=1.3&key=xxx"></script>
2.地图dom
<div class="map-container"> <div id="container" style="width:100%;height:500px"></div> </div>
3.js实现
export default { data() {}, methods:{ initMap(){ let map = new AMap.Map('container', { features: ['bg', 'road'], resizeEnable: true, center: [116.397428, 39.90923], zoom: 11, viewMode: '2D', pitch: 50, showZoomBar:true, }); if (!this.isSupportCanvas()) { this.$Message.info('热力图仅对支持canvas的浏览器适用,您所使用的浏览器不能使用热力图功能,请换个浏览器试试~') } let heatmap; let heatmapData=[]; //从接口获取数据 //官网示例数据结构 http://a.amap.com/jsapi_demos/static/resource/heatmapData.js this.$axios.get("/map/data").then(res => { if(res.success) { if(res.data){ res.data.forEach(item=>{ let obj={ lng:item.longitude, lat:item.latitude, count:item.count, } heatmapData.push(obj); }) map.plugin(["AMap.Heatmap"], function() { //初始化heatmap对象 heatmap = new AMap.Heatmap(map, { radius: 25, //给定半径 opacity: [0, 0.8], gradient:{ 0.5: 'blue', 0.65: 'rgb(117,211,248)', 0.7: 'rgb(0, 255, 0)', 0.9: '#ffea00', 1.0: 'red' } }); //设置数据集 heatmap.setDataSet({ data: heatmapData, max: 5 }); }); }else{ heatmapData =[]; } } else { heatmapData =[]; } }); } }, isSupportCanvas() {//判断浏览区是否支持canvas var elem = document.createElement('canvas'); return !!(elem.getContext && elem.getContext('2d')); }, }
参考:https://lbs.amap.com/api/javascript-api/example/selflayer/heatmap