vue3+ts 写echarts 中国地图
需要引入二次封装的echarts和在ts文件写的option
<template><div class="contentPage"><myEcharts :options="chartOptions" class="myEcharts" id="myEchartsMapId" ref="mapEcharts" /></div>
</template><script setup name="Index" lang="ts">
import { ref, onMounted, onBeforeUnmount, watch, defineExpose } from 'vue';
import myEcharts from '@/components/MyEcharts';//这是我封装的echarts组件,看个人需求添加,我放在文章最后面
import { chinaMap } from '@/plugins/optoons';const chartOptions: any = ref({});
let dataList: any = ref([{name: '南海诸岛',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '北京',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '天津',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '上海',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '重庆',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '河北',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '河南',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '云南',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '辽宁',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '黑龙江',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '湖南',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '安徽',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '山东',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '新疆',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '江苏',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '浙江',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '江西',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '湖北',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '广西',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '甘肃',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '山西',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '内蒙古',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '陕西',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '吉林',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '福建',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '贵州',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '广东',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '青海',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '西藏',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '四川',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '宁夏',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '海南',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '台湾',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '香港',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数},{name: '澳门',value: Math.floor(Math.random() * 100) // 返回 0 至 99 之间的数}
]);let observer: ResizeObserver | null = null;
let resizeTimer: any = null;const mapEcharts: any = ref();onMounted(() => {initMap();observer = new ResizeObserver(handleResize);observer.observe(document.getElementById('myEchartsMapId'));
});const handleResize = () => {clearTimeout(resizeTimer);resizeTimer = setTimeout(() => {mapEcharts.value?.autoResize();}, 200);
};onBeforeUnmount(() => {if (observer) {observer.disconnect();}
});const initMap = () => {chartOptions.value = chinaMap(dataList.value);
};
</script><style scoped lang="scss" name="Home">
.contentPage {width: 100%;height: 100%;position: relative;display: flex;justify-items: center;align-items: center;.myEcharts {width: 100%;}
}
</style>
单独把option写在一个ts文件里
import * as echarts from 'echarts';
import chinaMapJson from '@/plugins/chinaMap.json';export const chinaMap = (dataList: Array<any>) => {echarts.registerMap('china', chinaMapJson);const option: object = {tooltip: {triggerOn: 'mousemove', //mousemove、clickborderColor: 'rgba(65, 119, 254, 1)', //边框颜色alwaysShowContent: false,backgroundColor: 'rgba(238, 241, 255, 1)', //背景颜色textStyle: {fontSize: 14,color: 'rgba(51, 71, 93, 1)'},formatter: (params: any) => {return params.name + ': ' + params.value + '万人';}},geo: {map: 'china',roam: true, //是否允许缩放,拖拽zoom: 1.2, //初始化大小//缩放大小限制scaleLimit: {min: 1, //最小max: 10 //最大},label: {normal: {show: true,fontSize: '14',color: 'rgba(0,0,0,0.7)'}},//设置中心点center: [104.97, 35.71],// 省份地图添加背景itemStyle: {areaColor: '#bcc5ee',borderColor: 'rgba(0, 0, 0, 0.2)',borderWidth: 1},emphasis: {areaColor: '#FF6347',shadowOffsetX: 0,shadowOffsetY: 0,borderWidth: 0}},// visualMap: {// show: true,// left: 40,// bottom: 50,// showLabel: true,// textStyle: {// color: 'rgba(0,0,0,0.7)', //图例文字的样式// fontSize: 14 //字体大小// },// pieces: [// {// gte: 15,// label: '15万人以上',// color: '#009dff'// },// {// gte: 10,// lt: 15,// label: '10-15万人',// color: '#3c57ce'// },// {// gte: 5,// lt: 10,// label: '5-10万人',// color: '#6f83db'// },// {// gte: 1,// lt: 5,// label: '1-5万人',// color: '#9face7'// },// {// lt: 1,// label: '1万人以下',// color: '#bcc5ee'// }// ]// },visualMap: {type: 'continuous',text: ['', ''],showLabel: true,left: '50',min: 0,max: 100,inRange: {color: ['#edfbfb', '#b7d6f3', '#40a9ed', '#3598c1', '#215096']},splitNumber: 0},series: [{name: '中国地图',type: 'map',geoIndex: 0,data: dataList}]};return option;
};
中国地图json(重要!!!)
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"name": "台湾", "cp": [120.8254, 23.5986], "childNum": 1 },"geometry": {"type": "Polygon","coordinates": [[[121.9043, 25.0488],[121.9922, 25.0049],[121.8164, 24.7412],[121.9043, 24.5654],[121.6406, 24.0381],[121.377, 23.1152],[121.0254, 22.6758],[120.8496, 22.0605],[120.7617, 21.9287],[120.6738, 22.3242],[120.2344, 22.5879],[120.0586, 23.0713],[120.1465, 23.6865],[121.0254, 25.0488],[121.5527, 25.3125],[121.9043, 25.0488]]]}},{"type": "Feature","properties": { "id": "11", "size": "5000", "name": "北京", "cp": [116.4551, 40.2539], "childNum": 19 },"geometry": {"type": "Polygon","coordinates": [[[117.4219, 40.21],[117.334, 40.1221],[117.2461, 40.0781],[116.8066, 39.9902],[116.8945, 39.8145],[116.8945, 39.6826],[116.8066, 39.5947],[116.543, 39.5947],[116.3672, 39.4629],[116.1914, 39.5947],[115.752, 39.5068],[115.4883, 39.6387],[115.4004, 39.9463],[115.9277, 40.2539],[115.752, 40.5615],[116.1035, 40.6055],[116.1914, 40.7813],[116.4551, 40.7813],[116.3672, 40.9131],[116.6309, 41.0449],[116.9824, 40.6934],[117.4219, 40.6494],[117.2461, 40.5176],[117.4219, 40.21]]]}},{"type": "Feature","properties": { "id": "12", "size": "5000", "name": "天津", "cp": [117.4219, 39.4189], "childNum": 18 },"geometry": {"type": "Polygon","coordinates": [[[116.8066, 39.5947],[116.8945, 39.6826],[117.1582, 39.6387],[117.1582, 39.8145],[117.2461, 40.0781],[117.334, 40.1221],[117.4219, 40.21],[117.6855, 40.0781],[117.6855, 39.9902],[117.5098, 39.9902],[117.5098, 39.7705],[117.6855, 39.5947],[117.9492, 39.5947],[117.8613, 39.4189],[118.0371, 39.2432],[118.0371, 39.1992],[117.8613, 39.1113],[117.5977, 38.6279],[117.2461, 38.54],[116.7188, 38.8037],[116.7188, 38.9355],[116.8945, 39.1113],[116.8066, 39.5947]]]}},{"type": "Feature","properties": { "id": "31", "size": "7500", "name": "上海", "cp": [121.4648, 31.2891], "childNum": 19 },"geometry": {"type": "Polygon","coordinates": [[[120.9375, 31.0254],[121.2012, 31.4648],[121.377, 31.5088],[121.1133, 31.7285],[121.2012, 31.8604],[121.9922, 31.5967],[121.9043, 31.1572],[121.9922, 30.8057],[121.2891, 30.6738],[120.9375, 31.0254]]]}},{"type": "Feature","properties": { "id": "81", "size": "18000", "name": "香港", "cp": [114.6178, 22.3242], "childNum": 1 },"geometry": {"type": "Polygon","coordinates": [[[114.6094, 22.4121],[114.5215, 22.1484],[114.3457, 22.1484],[113.9063, 22.1484],[113.8184, 22.1924],[113.9063, 22.4121],[114.1699, 22.5439],[114.3457, 22.5439],[114.4336, 22.5439],[114.4336, 22.4121],[114.6094, 22.4121]]]}},{"type": "Feature","properties": { "id": "82", "size": "27", "name": "澳门", "cp": [114.5547, 22.1484], "childNum": 1 },"geometry": {"type": "Polygon","coordinates": [[[113.5986, 22.1649],[113.6096, 22.1265],[113.5547, 22.11],[113.5437, 22.2034],[113.5767, 22.2034],[113.5986, 22.1649]]]}}]
}
二次封装echarts组件
<template><div ref="chartRef" class="chart-container"></div>
</template><script setup lang="ts">
import { ref, onMounted, onBeforeUnmount, watch, defineExpose } from 'vue';
import * as echarts from 'echarts';// 定义 Props 类型
interface ChartProps {options: EChartsOption;// 可以添加其他 props 如:autoResize, theme 等
}const props = withDefaults(defineProps<ChartProps>(), {options: () => ({} as EChartsOption)
});const chartRef = ref<HTMLDivElement | null>(null);
let chartInstance: echarts.ECharts | null = null;// 初始化 ECharts
onMounted(() => {if (chartRef.value) {chartInstance = echarts.init(chartRef.value);chartInstance.setOption(props.options);// 如果需要,添加窗口大小变化时的响应式处理window.addEventListener('resize', () => {chartInstance?.resize();});}
});// 监听 options 的变化并更新图表
watch(() => props.options,(newOptions) => {if (chartInstance) {chartInstance.setOption(newOptions);}},{ deep: true }
);// 清理
onBeforeUnmount(() => {if (chartInstance) {chartInstance.dispose();chartInstance = null;window.removeEventListener('resize', () => chartInstance?.resize());}
});// 提供 API
defineExpose({// 例如:提供一个方法来刷新图表refreshChart(newOptions: EChartsOption) {if (chartInstance) {chartInstance.setOption(newOptions);}},// 获取 ECharts 实例(谨慎使用,可能会破坏封装性)getChartInstance() {return chartInstance;},//自适应容器宽度高度autoResize() {chartInstance?.resize();}
});
</script><style scoped>
.chart-container {width: 100%;height: 100%;
}
</style>
最后效果
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