cityfenbu.vue
代码语言：javascript复制<template>
<div >
<el-card class="seriesmap-box-card">
<div slot="header" class="clearfix">
<span>城市分布图 (点击可下钻到县)</span>
</div>
<div>
<div class="series-map" :style="{height:height,width:width}" ref="seriesMap"></div>
</div>
</el-card>
</div>
</template>
<script>
import resize from './resize.js';
import echarts from 'echarts';
import { getGeoJson } from './getGeoJson.js';
import { getMapChartData } from './getMapChartData.js';
export default {
name: 'cityfenbu',
mixins: [resize],
props: {
width: {
type: String,
default: '100%'
},
height: {
type: String,
default: '608px'
}
},
data() {
return {
geoJson: {},
parentInfo: [
{
cityName: '全国',
code: 100000
}
]
};
},
mounted() {
this.$nextTick(() => {
this.getMapJson();
});
},
methods: {
//获取geoJson 地图 已封装好直接传citycode就行
getMapJson() {
getGeoJson(this.parentInfo[this.parentInfo.length - 1].code).then(data => {
this.geoJson = data;
this.getMapData();
});
},
//获取地图数据 模拟数据 数据格式：[{name:'武汉市',value:96},{name:'长沙市',value:75}]
// 必须要写成这种,而且name名字要和地图的geoJson名字一样，不然渲染不出来
getMapData() {
getMapChartData(this.parentInfo[this.parentInfo.length - 1].code).then(res => {
const data = res.data;
this.initEchart(data);
});
},
initEchart(data) {
this.myChart = echarts.init(this.$refs.seriesMap);
//设置为 china 则显示南海诸岛 ，不需要可以去掉
echarts.registerMap(this.parentInfo.length === 1 ? 'china' : 'map', this.geoJson); //注册
const mapData = data.sort((a, b) => {
return b.value - a.value;
});
let max = mapData[0].value;
let min = mapData[mapData.length - 1].value;
if (mapData.length === 1) {
min = 0;
}
this.myChart.setOption(
{
tooltip: {},
visualMap: {
min: min,
max: max,
left: '3%',
bottom: '1%',
calculable: true,
inRange: {
color: ['#24CFF4', '#2E98CA', '#1E62AC']
},
textStyle: {
color: '#24CFF4'
}
},
series: [
{
name: '地图',
type: 'map',
map: this.parentInfo.length === 1 ? 'china' : 'map',
roam: true, //是否可缩放
zoom: 1.22, //缩放比例
// left: '',
// top: '15%', //可移动地图的位置
data: mapData,
label: {
normal: {
show: true,
color: 'rgb(249, 249, 249)', //省份标签字体颜色
formatter: p => {
switch (p.name) {
case '内蒙古自治区':
p.name = '内蒙古';
break;
case '西藏自治区':
p.name = '西藏';
break;
case '新疆维吾尔自治区':
p.name = '新疆';
break;
case '宁夏回族自治区':
p.name = '宁夏';
break;
case '广西壮族自治区':
p.name = '广西';
break;
case '香港特别行政区':
p.name = '香港';
break;
case '澳门特别行政区':
p.name = '澳门';
break;
default:
break;
}
return p.name;
}
},
emphasis: {
show: true,
color: '#f75a00'
}
},
itemStyle: {
normal: {
areaColor: '#24CFF4',
borderColor: '#53D9FF',
borderWidth: 1.3,
shadowBlur: 15,
shadowColor: 'rgb(58,115,192)',
shadowOffsetX: 7,
shadowOffsetY: 6
},
emphasis: {
areaColor: '#8dd7fc',
borderWidth: 1.6,
shadowBlur: 25
}
}
}
]
},
true
);
this.myChart.getZr().off('click');
this.myChart.getZr().on('click', params => {
if (params.target) {
// 点的是地图
const index = params.target.dataIndex;
if (index && data[index]) {
//如果当前是最后一级了，就直接return
if (this.parentInfo[this.parentInfo.length - 1].code == data[index].adcode) {
return;
}
//根据这个level判断是否下钻到县
// if (data[index].level == 'city') {
// return
// }
this.parentInfo.push({
cityName: data[index].name,
code: data[index].adcode
});
this.getMapJson();
this.$notify.info({
title: '温馨提示',
message: '点击地图空白处即可返回上一级'
});
}
} else {
//点的空白部分
if (this.parentInfo.length === 1) {
return;
}
this.parentInfo.pop();
this.getMapJson();
}
});
}
}
};
</script>
<style lang="scss" scoped>
.seriesmap-box-card {
color:rgb(191, 203, 217);
background:#2d3a4b;
width: 100%;
height: 100%;
font-size: 14px;
.clearfix:before,
.clearfix:after {
display: table;
content: "";
}
.clearfix:after {
clear: both
}
.series-map {
cursor:move;
}
}
</style>resize.js
代码语言：javascript复制import { debounce } from "./debounce.js";
export default {
data() {
return {
myChart: null,
resizeHandler: null
};
},
computed: {},
mounted() {
this.resizeHandler = debounce(() => {
if (this.myChart) {
this.myChart.resize();
}
}, 100);
this.initResizeEvent();
},
methods: {
//监听resize
initResizeEvent() {
window.addEventListener("resize", this.resizeHandler);
},
//移除resize
destroyResizeEvent() {
window.removeEventListener("resize", this.resizeHandler);
}
},
beforeDestroy() {
this.destroyResizeEvent();
if (!this.myChart) {
return;
}
this.myChart.dispose();
this.myChart.off("click");
this.myChart = null;
},
activated() {
this.initResizeEvent();
if (this.myChart) {
this.myChart.resize();
}
},
deactivated() {
this.destroyResizeEvent();
},
watch: {}
};getGeoJson.js
代码语言：javascript复制/**
* 获取geoJson数据 通过高德获取 递归获取区县geoJson
* @param {string} adcode 行政区code
* @param {string} childAdcode 区县级行政区code
* @return {Array}
*/
import remoteLoad from "./remoteLoad.js";
const {AMapCDN, AMapUiCDN} = require("./cdn.js");
export function getGeoJson(adcode, childAdcode = "") {
return new Promise((resolve, reject) => {
if (window.AMap && window.AMapUI) {
insideFun(adcode, childAdcode);
} else {
remoteLoad(AMapCDN).then(() => {
if (window.AMap) {
remoteLoad(AMapUiCDN).then(() => {
if (window.AMapUI) {
insideFun(adcode, childAdcode);
} else {
console.error("AMapUI获取失败");
}
});
} else {
console.error("AMap获取失败");
}
});
}
function insideFun(adcode, childAdcode) {
// eslint-disable-next-line
AMapUI.loadUI(["geo/DistrictExplorer"], DistrictExplorer => {
var districtExplorer = new DistrictExplorer();
districtExplorer.loadAreaNode(adcode, function(error, areaNode) {
if (error) {
console.error(error);
reject(error);
return;
}
let Json = areaNode.getSubFeatures();
if (Json.length === 0) {
let parent = areaNode._data.geoData.parent.properties.acroutes;
insideFun(parent[parent.length - 1], adcode);
return;
}
if (childAdcode) {
Json = Json.filter(item => {
return item.properties.adcode == childAdcode;
});
}
let mapJson = {
features: Json
};
resolve(mapJson);
});
});
}
});
}getMapChartData.js
代码语言：javascript复制import { getGeoJson } from "./getGeoJson.js";
/** 地图数据
* @param {string} adcode 城市code
* @returns {Array}
*/
export function getMapChartData(adcode) {
return new Promise((resolve, reject) => {
getGeoJson(adcode)
.then(res => {
const data = res.features;
const mapData = data.map(item => {
return {
name: item.properties.name,
value: parseFloat((Math.random() * 3000).toFixed(2)),
adcode: item.properties.adcode,
level: item.properties.level
};
});
resolve({
code: 200,
data: mapData
});
})
.catch(error => {
reject(error);
});
});
}
/** 地图数据 散点
* @param {string} adcode 城市code
* @returns {Array}
*/
export function getPointChartData(adcode) {
return new Promise((resolve, reject) => {
getGeoJson(adcode)
.then(res => {
const data = res.features;
const mapData = data.map(item => {
return {
name: item.properties.name,
value: [
item.properties.center[0],
item.properties.center[1],
parseFloat((Math.random(0.1, 1) * 1000).toFixed(2))
],
adcode: item.properties.adcode,
level: item.properties.level
};
});
resolve({
code: 200,
data: mapData
});
})
.catch(error => {
reject(error);
});
});
}
/** 地图数据 热力图
* @param {string} adcode 城市code
* @returns {Array}
*/
export function getHotMapChartData(adcode) {
const data = [
{
name: "地点1",
value: [114.412021, 30.481201, 1000]
},
{
name: "地点2",
value: [114.411266, 30.480921, 1000]
},
{
name: "地点3",
value: [114.411985, 30.481387, 1000]
},
{
name: "地点4",
value: [114.411159, 30.481917, 1000]
},
{
name: "地点5",
value: [114.412488, 30.481917, 1000]
},
{
name: "地点6",
value: [114.413638, 30.482726, 1000]
},
{
name: "地点7",
value: [114.412344, 30.48341, 1000]
},
{
name: "地点8",
value: [114.413494, 30.483939, parseInt(Math.random(0.6, 1) * 1000)]
},
{
name: "地点9",
value: [114.411877, 30.484469, parseInt(Math.random(0.6, 1) * 1000)]
},
{
name: "地点10",
value: [114.412308, 30.484531, parseInt(Math.random(0.6, 1) * 1000)]
},
{
name: "地点11",
value: [114.407853, 30.4845, parseInt(Math.random(0.6, 1) * 1000)]
},
{
name: "地点12",
value: [114.407242, 30.48285, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点13",
value: [114.412021, 30.481201, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点14",
value: [114.412021, 30.481201, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点15",
value: [114.412021, 30.481201, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点16",
value: [114.412021, 30.481201, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点17",
value: [114.412021, 30.481201, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点18",
value: [114.412021, 30.481201, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点19",
value: [114.412021, 30.481201, parseInt(Math.random(0.1, 0.5) * 1000)]
},
{
name: "地点20",
value: [114.447306, 30.560407, parseInt(Math.random(0.1, 0.9) * 1000)]
},
{
name: "地点21",
value: [114.296104, 30.600017, parseInt(Math.random(0.1, 0.9) * 1000)]
},
{
name: "地点22",
value: [114.29402, 30.597406, parseInt(Math.random(0.1, 0.9) * 1000)]
},
{
name: "地点23",
value: [114.300487, 30.595106, parseInt(Math.random(0.1, 0.9) * 1000)]
},
{
name: "地点24",
value: [114.295026, 30.592805, parseInt(Math.random(0.1, 0.9) * 1000)]
},
{
name: "地点25",
value: [114.291648, 30.597282, 1000]
},
{
name: "地点26",
value: [114.287408, 30.599147, 1000]
},
{
name: "地点27",
value: [114.282378, 30.598649, 1000]
},
{
name: "地点28",
value: [114.286689, 30.600514, 1000]
}
];
return new Promise((resolve, reject) => {
resolve({
code: 200,
data: data
});
});
}remoteLoad.js
代码语言：javascript复制const remoteLoad = url => {
return new Promise((resolve, reject) => {
const existingScript = document.getElementById(url);
//如果script不存在
if (!existingScript) {
const script = document.createElement("script");
script.id = url;
script.src = url;
script.async = true;
document.body.appendChild(script);
script.onload = function() {
setTimeout(() => {
this.onerror = this.onload = null;
resolve();
}, 500);
};
script.onerror = function() {
this.onerror = this.onload = null;
reject("加载失败" url);
};
} else {
setTimeout(() => {
resolve();
}, 500);
}
});
};
export default remoteLoad;cdn.js
代码语言：javascript复制const AMapCDN =
"https://webapi.amap.com/maps?v=1.3&key=73cddabc2173e0166a622f4483d3592a&plugin=AMap.DistrictSearch";
const AMapUiCDN = "https://webapi.amap.com/ui/1.0/main.js";
const VueCDN = "https://cdn.bootcdn.net/ajax/libs/vue/2.6.12/vue.min.js";
const AxiosCDN = "https://cdn.bootcdn.net/ajax/libs/axios/0.21.0/axios.min.js";
const VueRouterCDN =
"https://cdn.bootcdn.net/ajax/libs/vue-router/3.2.0/vue-router.min.js";
const VuexCDN = "https://cdn.bootcdn.net/ajax/libs/vuex/3.5.1/vuex.min.js";
const TinymceCDN =
"https://cdn.jsdelivr.net/npm/tinymce-all-in-one@4.9.3/tinymce.min.js";
const html2canvasCDN =
"https://cdn.jsdelivr.net/npm/html2canvas@1.0.0-rc.7/dist/html2canvas.min.js";
module.exports = {
AMapCDN,
AMapUiCDN,
VueCDN,
AxiosCDN,
VueRouterCDN,
VuexCDN,
TinymceCDN,
html2canvasCDN
};
