一、使用echarts生成一个地图,看一下生成效果图
二、使用步骤
1.先准备需要的数据
DataV.GeoAtlas地理小工具系列 可以去这个网站下载需要的json数据,也可在线引入,但是发布到线上有问题,所以我这边是直接把数据下载到本地使用。
把下载好的数据放入到public里面
在api写入一个axios引用本地数据，此处可区分一下在线环境和本地环境
代码如下：
import axios from "axios";
let path;
if (process.env.NODE_ENV === "production") {
path = `在线前端访问地址/chinaData/510000.json`;
} else {
path = `/chinaData/510000.json`;
}
export default axios.get(path);
2.准备dom实例，引入数据使用
3.自定义区域颜色块
给每个区域加上需要的颜色就可以，此处数据是写死的，如果是后端提供就需要拼接一下成这个样式，关键代码块：
itemStyle: { normal: { areaColor: "#2C6AE8" } },
4.自定义鼠标移入显示字段
tooltip: {
formatter: function (params) {
var dataCon = params.data;
let txtCon = `${dataCon.value}`;
return txtCon;
},
},
5.自定义地图图标
{
type: "scatter",
coordinateSystem: "geo",
itemStyle: {
color: "transparent",
},
symbol: `image://${imgUrl}`,
//针对于多个不同图标使用
// symbol: function (params) {
// const mapIcon = seriesData.find((item) => {
// return item.value == params[2]
// })
// return mapIcon.icon
// }, // svg图标
symbolSize: [15, 21],
symbolOffset: [3, -5],
z: 999,
zoom: 1,
roam: true,
animationDurationUpdate: 0,
data: convertData(seriesData),
//自定义鼠标移到图标上显示的东西
tooltip: {
formatter: function (params) {
let txtCon =
params.name == "成都市" ||
params.name == "绵阳市"
? "红色预警"
: "哈哈哈";
return txtCon;
},
},
},
6.地图点击事件，点击某块区域进行跳转
myChart.on("click", function (args) {
console.log("地图点击事件");
});
具体代码，复制即使用
<template>
<div class="map-chart">
<div
id="echatsMap"
ref="chartsDOM"
style="width: 100%; height: 100%"
></div>
</div>
</template>
<script setup>
import { onMounted, ref, reactive, watch } from "vue";
import * as echarts from "echarts/core";
import mapApi from "@/api/mapApi.js";
import imgUrl from "@/assets/imgs/adr.png";
import imgUrl1 from "@/assets/imgs/adr1.png";
import imgUrl2 from "@/assets/imgs/adr2.png";
import imgUrl3 from "@/assets/imgs/adr3.png";
onMounted(() => {
getMap();
});
const getMap = () => {
var myChart = echarts.init(document.getElementById("echatsMap"));
// 显示 loading 动画
myChart.showLoading();
// 再得到数据的基础上，进行地图绘制
mapApi.then((res) => {
// 得到结果后，关闭动画
myChart.hideLoading();
// 注册地图(数据放在axios返回对象的data中哦)
echarts.registerMap("MAP", res.data);
//各城市显示数据
var seriesData = [
{
name: "成都市",
value: 482,
itemStyle: { normal: { areaColor: "#2C6AE8" } },
icon: "",
},
{
name: "自贡市",
value: 642,
itemStyle: { normal: { areaColor: "#A7CEFC" } },
icon: "",
},
{
name: "攀枝花市",
value: 385,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: "",
},
{
name: "泸州市",
value: 545,
itemStyle: { normal: { areaColor: "#A7CEFC" } },
icon: "",
},
{
name: "德阳市",
value: 564,
itemStyle: { normal: { areaColor: "#A7CEFC" } },
icon: "",
},
{
name: "绵阳市",
value: 339,
itemStyle: { normal: { areaColor: "#2C6AE8" } },
icon: "",
},
{
name: "广元市",
value: 110,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: "",
},
{
name: "遂宁市",
value: 905,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "内江市",
value: 394,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: "",
},
{
name: "乐山市",
value: 650,
itemStyle: { normal: { areaColor: "#A7CEFC" } },
icon: "",
},
{
name: "南充市",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "眉山市",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "宜宾市",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "广安市",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "达州市",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "雅安市",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "巴中市",
value: 1075,
itemStyle: { normal: { areaColor: "#2C6AE8" } },
icon: `image://${imgUrl2}`,
},
{
name: "资阳市",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl2}`,
},
{
name: "阿坝藏族羌族自治州",
value: 1075,
itemStyle: { normal: { areaColor: "#669EF5" } },
icon: `image://${imgUrl1}`,
},
{
name: "甘孜藏族自治州",
value: 1075,
itemStyle: { normal: { areaColor: "#2C6AE8" } },
icon: `image://${imgUrl2}`,
},
{
name: "凉山彝族自治州",
value: 1075,
itemStyle: { normal: { areaColor: "#2C6AE8" } },
icon: `image://${imgUrl2}`,
},
];
//坐标点显示的位置
const geoCoordMap = {
成都市: [104.065735, 30.659462],
自贡市: [104.773447, 29.352765],
攀枝花市: [101.716007, 26.580446],
泸州市: [105.443348, 28.889138],
德阳市: [104.398651, 31.127991],
绵阳市: [104.741722, 31.46402],
广元市: [105.829757, 32.433668],
遂宁市: [105.571331, 30.513311],
内江市: [105.066138, 29.58708],
乐山市: [103.761263, 29.582024],
南充市: [106.082974, 30.795281],
眉山市: [103.831788, 30.048318],
宜宾市: [104.630825, 28.760189],
广安市: [106.633369, 30.456398],
达州市: [107.502262, 31.209484],
雅安市: [103.001033, 29.987722],
巴中市: [106.753669, 31.858809],
资阳市: [104.641917, 30.122211],
阿坝藏族羌族自治州: [102.221374, 31.899792],
甘孜藏族自治州: [101.963815, 30.050663],
凉山彝族自治州: [102.258746, 27.886762],
};
let convertData = function (data) {
let scatterData = [];
for (var i = 0; i < data.length; i++) {
var geoCoord = geoCoordMap[data[i].name];
if (geoCoord) {
scatterData.push({
name: data[i].name,
value: geoCoord.concat(data[i].value),
});
}
}
return scatterData;
};
var option = {
title: {
text: "",
},
geo: {
map: "MAP",
aspectScale: 0.75, //长宽比
zoom: 1,
roam: true, //滚轮 放大缩小
animationDurationUpdate: 0,
itemStyle: {
normal: {
borderWidth: 2, //设置外层边框
borderColor: "rgb(28,72,122)",
areaColor: "#013C62",
shadowColor: "#182f68",
shadowOffsetX: 0,
shadowOffsetY: 8,
},
emphasis: {
areaColor: "#2AB8FF",
borderWidth: 0,
color: "green",
label: {
show: false,
},
},
},
},
//鼠标移入效果
tooltip: {
formatter: function (params) {
var dataCon = params.data;
let txtCon = `${dataCon.value}`;
return txtCon;
},
},
series: [
{
name: "",
type: "map",
map: "MAP", // 这个是上面注册时的名字，registerMap（'这个名字保持一致'）
label: {
normal: {
show: true,
textStyle: {
color: "#fff",
fontSize: 12,
},
},
emphasis: {
textStyle: {
color: "rgb(183,185,14)",
},
},
},
itemStyle: {
normal: {
borderColor: "rgb(147, 235, 248,.8)",
borderWidth: 0.2,
areaColor: {
type: "linear",
x: 0.2,
y: 0.8,
r: 0.8,
colorStops: [
{
offset: 0,
color: "#002283", // 0% 处的颜色
},
{
offset: 0.3,
color: "#011f6d", // 0% 处的颜色
},
{
offset: 1,
color: "#021640", // 100% 处的颜色
},
],
globalCoord: true, // 缺省为 false
},
// zoom: 1,
// roam: true,
// animationDurationUpdate:0,
},
emphasis: {
areaColor: {
type: "radial",
x: 0.2,
y: 0.8,
r: 0.8,
colorStops: [
{
offset: 0,
color: "#091739", // 0% 处的颜色
},
{
offset: 1,
color: "#0b1843", // 100% 处的颜色
},
],
globalCoord: true, // 缺省为 false
},
borderWidth: 1,
// borderColor: '#f9bc90',
zoom: 1,
roam: true,
animationDurationUpdate: 0,
},
},
zoom: 1,
roam: true,
animationDurationUpdate: 0,
data: seriesData,
},
{
type: "scatter",
coordinateSystem: "geo",
itemStyle: {
color: "transparent",
},
symbol: `image://${imgUrl}`,
//针对于多个不同图标使用
// symbol: function (params) {
// const mapIcon = seriesData.find((item) => {
// return item.value == params[2]
// })
// return mapIcon.icon
// }, // svg图标
symbolSize: [15, 21],
symbolOffset: [3, -5],
z: 999,
zoom: 1,
roam: true,
animationDurationUpdate: 0,
data: convertData(seriesData),
//自定义鼠标移到图标上显示的东西
tooltip: {
formatter: function (params) {
let txtCon =
params.name == "成都市" ||
params.name == "绵阳市"
? "红色预警"
: "哈哈哈";
return txtCon;
},
},
},
],
};
myChart.setOption(option);
myChart.on("click", function (args) {
console.log("地图点击事件");
});
myChart.on("georoam", function (params) {
let option1 = myChart.getOption(); //获得option对象
if (params.zoom != null && params.zoom != undefined) {
//捕捉到缩放时
option1.geo[0].zoom = option1.series[0].zoom; //下层geo的缩放等级跟着上层的geo一起改变
option1.geo[0].center = option1.series[0].center; //下层的geo的中心位置随着上层geo一起改变
option1.geo[0].animationDurationUpdate = 0; //防止地图缩放卡顿
option1.series[0].animationDurationUpdate = 0; //防止地图缩放卡顿
} else {
//捕捉到拖曳时
option1.geo[0].center = option1.series[0].center; //下层的geo的中心位置随着上层geo一起改变
}
myChart.setOption(option1); //设置option
});
});
};
</script>
<style lang="scss" scoped>
.map-chart {
width: 50%;
height: 700px;
margin-top: 30px;
background-color: #012366;
}
</style>
![[问题随记]-如何修改网页中input type=file按钮名字](https://img-blog.csdnimg.cn/direct/213fe9f2dcac4580bf18d3fa55f527b7.png)
