VUE 记一次高德地图和Echarts（中国地图）

摘要：效果图准备工作高德地图申请安装中国地图高德地图官方点我进入创建动态创建标签后的是需要的插件中国地图安装开始使用创建组件写入需要的分布指数高低写入高德地图需要的

准备工作

高德地图申请key

安装Echarts 中国地图

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高德地图

官方API：点我进入

创建AMap.js

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export default function MapLoader () {
    return new Promise((resolve, reject) => {
      if (window.AMap) {
        resolve(window.AMap)
      } else {
      // 动态创建script标签
        var script = document.createElement("script")
        script.type = "text/javascript"
        script.async = true
        script.src = "https://webapi.amap.com/maps");;
        // plugin后的是需要的插件
        script.onerror = reject
        document.head.appendChild(script)
      }
      window.initAMap = () => {
        resolve(window.AMap)
      }
    })
}

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Echarts 中国地图

安装Echarts

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npm install echarts -S

开始使用

创建组件 distribution.vue

写入Echarts 需要的DOM

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分布指数
                
                    高
                    
                    
                    
                    
                    
                    低
                
        
    

写入高德地图需要的DOM

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引入高德地图、Echarts

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    import "echarts/map/js/china"; //中国地图js
    import MapLoader from "components/home/AMap"

Echarts方法

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generateEcharts() {
    var echarts = require("echarts");
    var myChart = echarts.init(this.$refs.main);  // 基于准备好的dom，初始化echarts实例
    this.$ajax.get(this.HOST + "/redesign/home/findEnterpriseistribution").then( (res) => {
        // 数据格式
        // [
        //   {name: "北京", value: 3, ranking: 1},
        //   {name: "河北", value: 2, ranking: 2},
        //   {name: "上海", value: 1, ranking: 3},
        //   {name: "广东", value: 1, ranking: 4}
        //   ...
        // ]
        this.homebution = res.data.resultObject;
        var data = [];
        for (let i = 0; i < res.data.resultObject.length; i++) {
            this.homebutionnum += res.data.resultObject[i].value;
            let classnum = ""
            // 排名显示样式
            if(res.data.resultObject[i].ranking == 1) { 
                classnum = "#1669e6"
            }else if(res.data.resultObject[i].ranking > 1 && res.data.resultObject[i].ranking <= 4) {
                classnum = "#31a4ed"
            }else if(res.data.resultObject[i].ranking > 4 && res.data.resultObject[i].ranking <= 10) {
                classnum = "#2cccfd"
            }else if(res.data.resultObject[i].ranking > 10 && res.data.resultObject[i].ranking <= 20) {
                classnum = "#7fe2fd"
            }else {
                classnum = "#d9f4fe"
            }
            data.push(
                {
                    name: res.data.resultObject[i].name,
                    itemStyle: {
                        normal: {
                            areaColor: classnum,
                            // borderWidth: 2
                        },
                        emphasis: {//高亮状态下的多边形和标签样式
                            borderWidth: 1,
                            // borderColor: "#d9f4fe",
                            areaColor: "#d9f4fe",
                            label: {
                                shadowColor: "#d9f4fe", //默认透明
                                shadowBlur: 10,
                                show: true,
                                textStyle: {
                                    fontSize: 12,
                                    color: "#3db77f"
                                }
                            }
                        }
                    },
                    label: {
                        normal: {
                            show: true,
                            textStyle: {
                                fontSize: 12,
                                color: "#0d6fb8"
                            }
                        },
                        emphasis: {
                            show: true,
                            color: "#3db77f"
                        }
                    },
                    value: res.data.resultObject[i].value ");"",
                    ranking: res.data.resultObject[i].ranking ");""
                }
            )
        }
        // 准备提示数据
        var option = {
            tooltip: {
                formatter:  (params) => {
                    var info = "";
                        if(params.data) {
                            info = `
                                
${ params.name }
                                
${ params.data.value }
                                
排名：${ params.data.ranking }
                            `
                        }else {
                            info = `
                                
${ params.name }
                            `
                        }
                    return info;
                },
                backgroundColor: "rgba(0,0,0,.6)",//提示标签背景颜色
                textStyle: { color: "#fff" } //提示标签字体颜色
            },
            //配置属性
            series: [{  
                name: "数据",  
                type: "map",  
                mapType: "china",   
                roam: true,  
                label: {  
                    normal: {  
                        show: false  //省份名称  
                    },  
                    emphasis: { 
                        show: false  
                    }  
                },  
                data: data  //数据
            }],
        };
        //使用制定的配置项和数据显示图表
        myChart.setOption(option);
    })
}

高德地图方法

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Scottmap() {
    let that = this;
    that.map = "";
    MapLoader().then(AMap => {
        console.log("地图加载成功")
        that.map = new AMap.Map("container", {
            center: [116.05438, 38.98065],
            // center: [116.397428, 39.90923],
            zoom: 5
        })
        // 由于项目是按雄安地区使用 API暂时还未把雄安划分 所以决定把安新县、雄县、容城县（三县合一就是雄安）绘制成高亮
        // 绘制高亮
        var district = new AMap.DistrictSearch({
            // 返回行政区边界坐标等具体信息
            extensions: "all",
            // 设置查询行政区级别为 区 
            level: "district"
        })
        var polygons=[];
        var polygons2=[];
        var polygons3=[];
        district.search("安新县", (status, result) => {
            if(polygons) {
                that.map.remove(polygons)//清除上次结果
            }
            polygons = [];
            let bounds = result.districtList[0].boundaries;
            if (bounds) {
                for (let i = 0; i < bounds.length; i++) {
                    //生成行政区划polygon
                    var polygon = new AMap.Polygon({
                        strokeWeight: 1,
                        path: bounds[i],
                        fillOpacity: 0.4,
                        fillColor: "#80d8ff",
                        strokeColor: "#0091ea"
                    });
                    polygons.push(polygon);
                }
            }
            that.map.add(polygons);
        });
        district.search("雄县", (status2, result2) => {
            if(polygons2) {
                that.map.remove(polygons2)//清除上次结果
            }
            polygons2 = [];
            let bounds = result2.districtList[0].boundaries;
            if (bounds) {
                for (let i = 0; i < bounds.length; i++) {
                    //生成行政区划polygon
                    var polygon = new AMap.Polygon({
                        strokeWeight: 1,
                        path: bounds[i],
                        fillOpacity: 0.4,
                        fillColor: "#80d8ff",
                        strokeColor: "#0091ea"
                    });
                    polygons2.push(polygon);
                }
            }
            that.map.add(polygons2)
        })
        district.search("容城县", (status2, result2) => {
            if(polygons3) {
                that.map.remove(polygons2)//清除上次结果
            }
            polygons3 = [];
            let bounds = result2.districtList[0].boundaries;
            if (bounds) {
                for (let i = 0; i < bounds.length; i++) {
                    //生成行政区划polygon
                    var polygon = new AMap.Polygon({
                        strokeWeight: 1,
                        path: bounds[i],
                        fillOpacity: 0.4,
                        fillColor: "#80d8ff",
                        strokeColor: "#0091ea"
                    });
                    polygons3.push(polygon);
                }
            }
            that.map.add(polygons3)
        })
        // 构造矢量圆形（圆）
        let circle = new AMap.Circle({
            center:  [116.05438, 38.98065], // 雄安的中心点
            radius: that.distance * 1000,  //半径
            strokeColor: "#ffffff",  //线颜色
            strokeOpacity: 1,  //线透明度
            strokeWeight: 3,  //线粗细度
            fillColor: "#276cd4",  //填充颜色
            fillOpacity: 0.2 //填充透明度
        });
        that.map.add(circle);
        that.map.setFitView(circle);
        let lnglat = new AMap.LngLat(116.05438, 38.98065) // lng, lat 替换成传入的坐标 
        let polylinePath = [
            new AMap.LngLat(116.05438, 38.98065),
            new AMap.LngLat(lnglat.offset(that.distance * 1000,0).lng,38.98065)
        ];
        // 创建线覆盖物
        let polyline = new AMap.Polyline({
            path: polylinePath,
            strokeColor: "#ffffff", //线颜色
            strokeOpacity: 1,       //线透明度
            strokeWeight: 2,        //线宽
            strokeStyle: "solid",   //线样式
            strokeDasharray: [10, 5] //补充线样式
        });
        that.map.add(polyline);
        // 绘制字
        let textPos = lnglat.offset(that.distance * 500,that.distance * 50);
        let text = new AMap.Text({
            text: `${ that.distance }公里`,
            position: textPos,
            map: this.map,
            style:{
                    "background": "transparent",
                    "border": "0 none",
                    "color": "#276cd4",
                    "font-size":"14px"}
        })
        that.map.add(text);
        // 测试距离
        let Centralpoint = [116.05438, 38.98065];
        let targetpoint = this.region
        // debugger
        // 转经纬度
        let geocoder = new AMap.Geocoder({
            city: "全国", //城市设为北京，默认：“全国”
        });
        let markernum = 0
        for (let i = 0; i < targetpoint.length; i++) {
            geocoder.getLocation(targetpoint[i], (status, result) => {
                if (status === "complete"&& result.geocodes.length) {
                    let dis = AMap.GeometryUtil.distance(Centralpoint,result.geocodes[0].location);
                    // 绘制点标记显示内容，HTML要素字符串
                    if(dis <= that.distance * 1000) {
                        markernum++;
                        let markerContent = "" +
                            "
" +
                            "   " +
                            "
"+ markernum +"
"+
                            "";
                        this.$ajax.get(this.HOST + "/redesign/home/findCompanyAll").then( (res) => {
                            this.matchingenterpriseList.push(res.data.resultObject[i])
                        })
                        let marker = new AMap.Marker({
                            content: markerContent,                                
                            position: result.geocodes[0].location,
                            offset: new AMap.Pixel(-13, -30),
                            extData:{
                                id: markernum
                            }
                        });
                        that.markers.push(marker);
                        marker.setMap(this.map);
                    }
                }
        })
        }
        that.matchingenterpriseState = true;
    }, e => {
        console.log("地图加载失败" ,e)
    })
},

左侧企业列表

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// 企业鼠标经过
matchingenterprisemouseenter(item,index) {
    this.activemetchmouseenter = index;
    let targetMarker = {};
    for (let i = 0; i < this.markers.length; i++) {
        let id = this.markers[i].getExtData().id;
        if(id == index){
            targetMarker = this.markers[i];
            break;
        }
    }
    // 重新替换样式
    let markerContent = "" +
        "
" +
        "   " +
        "
"+ index +"
"+
        "";
    // targetMarker.setIcon("//a.amap.com/jsapi_demos/static/demo-center/icons/poi-marker-default.png");
    targetMarker.setContent(markerContent)
    let position =  targetMarker.getPosition();
    this.infoWindow = new AMap.InfoWindow({
        position: position,
        offset: new AMap.Pixel(0, -35),
        content: item.companyName
    });
    this.infoWindow.open(this.map);
},

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// 企业鼠标离开
matchingenterprisemouseleave(item,index) {
    this.activemetchmouseenter = "";
    let targetMarker = {};
    for (let i = 0; i < this.markers.length; i++) {
        let id = this.markers[i].getExtData().id;
        if(id == index){
            targetMarker = this.markers[i];
            break;
        }
    }
    let markerContent = "" +
        "
" +
        "   " +
        "
"+ index +"
"+
        "";
    // targetMarker.setIcon("//a.amap.com/jsapi_demos/static/demo-center/icons/poi-marker-default.png");
    targetMarker.setContent(markerContent)
    this.map.remove(this.infoWindow);
},

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// 企业点击
matchingenterpriseclick(item,index) {
    this.activeState3 = true;
    this.activeState1 = false;
    this.activeState = false;
    this.itemList = item;
    // this.map.remove(overlayGroups);
    let geocoder = new AMap.Geocoder({
        city: "全国", //城市设为北京，默认：“全国”
    });
    geocoder.getLocation(item.address, (status, result) => {
        this.map.setCenter(result.geocodes[0].location); //设置地图中心点
        this.map.setZoom(30); // 缩放级别
    })
},

具体代码