Echarts中国地图
# 效果图
# 所需文件
# 组件源码
<template>
<div id="mapChart"></div>
</template>
<script setup>
import { onMounted, ref } from 'vue'
import * as echarts from 'echarts'
import chinaJson from './china.json'
const provinceData = ref([]);
const geoCoordMap = ref({})
chinaJson.features.forEach(e => {
if(e.properties.name) {
const name = e.properties.name;
// 地区经纬度
geoCoordMap.value[name] = e.properties.center;
provinceData.value.push({
name: e.properties.name,
value: parseInt(Math.random() * 1000)
})
}
})
const convertData = (data) => {
let res = [];
for (let i = 0; i < data.length; i++) {
let geoCoord = geoCoordMap.value[data[i].name];
if (geoCoord) {
res.push({
name: data[i].name,
value: geoCoord.concat(data[i].value),
});
}
}
return res;
}
const options = {
backgroundColor: '#0F1C3C',
tooltip: {
show: true,
formatter: function(params) {
if (params.value.length > 1) {
return `${params.name} ${params.value[2]} 人`
} else {
return `${params.name} ${params.value ? params.value + '人' : ''}`
}
},
},
geo: {
map: 'china',
show: true,
roam: false,
label: {
emphasis: {
show: false
}
},
layoutSize: "100%",
itemStyle: {
normal: {
borderColor: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
offset: 0,
color: '#00F6FF'
}, {
offset: 1,
color: '#53D9FF'
}], false),
borderWidth: 3,
shadowColor: 'rgba(10,76,139,1)',
shadowOffsetY: 0,
shadowBlur: 60
}
}
},
series: [{
symbolSize: 1,
label: {
normal: {
formatter: function(para) {
return '{name|' + para.data.name + '}'
},
rich: {
cnNum: {
fontSize: 14,
color: '#D4EEFF',
align: 'center',
},
name: {
fontSize: 12,
color: '#D4EEFF',
align: 'center',
lineHeight:20,
},
},
color: '#D4EEFF',
show: true
},
emphasis: {
show: true
}
},
itemStyle: {
normal: {
color: '#D4EEFF'
}
},
name: 'light',
type: 'scatter',
coordinateSystem: 'geo',
data: convertData(provinceData.value),
}, {
type: 'map',
map: 'china',
aspectScale: 0.75,
label: {
normal: {
show: false
},
emphasis: {
show: false,
}
},
itemStyle: {
normal: {
areaColor: {
x: 0,
y: 0,
x2: 0,
y2: 1,
colorStops: [{
offset: 0,
color: '#073684' // 0% 处的颜色
}, {
offset: 1,
color: '#061E3D' // 100% 处的颜色
}],
},
borderColor: '#215495',
borderWidth: 1,
},
emphasis: {
areaColor: {
x: 0,
y: 0,
x2: 0,
y2: 1,
colorStops: [{
offset: 0,
color: '#073684' // 0% 处的颜色
}, {
offset: 1,
color: '#061E3D' // 100% 处的颜色
}],
},
}
},
data: provinceData.value,
}]
}
const renderEcharts = (elementId, options, isMap = true) => {
if(isMap){
echarts.registerMap('china', chinaJson)
}
let myChart = echarts.getInstanceByDom(document.getElementById(elementId))
if (!myChart) {
myChart = echarts.init(document.getElementById(elementId));
}
myChart.setOption(options);
window.addEventListener("resize", () => myChart && myChart.resize());
}
onMounted(() => {
renderEcharts('mapChart', options)
})
</script>
<style lang="less" scoped>
#mapChart {
width: 80%;
height: 800px;
}
</style>
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上次更新: 2023/08/07, 10:37:54