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+import React, { useState, useEffect } from 'react';
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+import { Card, Slider } from 'antd';
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+import Echart from '@/components/EchartsTest/EChart';
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+import { fetch, apis } from '@/utils/request';
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+// import ECharts from './echarts';
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+
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+const geoOptions = {};
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+
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+const getCityData = fetch(apis.indexEcharts.personCity);
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+
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+const mapDataRange = x => {
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+ // 映射区间 [1, 100000] => [rangeStart, rangeEnd]
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+ const min = 1;
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+ const max = 100000;
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+ const rangeStart = 16;
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+ const rangeEnd = 24;
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+
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+ return rangeStart + ((x - min) * (rangeEnd - rangeStart)) / (max - min);
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+};
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+
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+const CityNums = props => {
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+ const [data, setData] = useState([]);
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+ const [zoom, setZoom] = useState(1.2);
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+ const [option, setOption] = useState({});
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+
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+ useEffect(() => {
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+ getCityData().then(response => {
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+ const { selectCityUser = [] } = response || {};
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+ const data = selectCityUser.map(item => {
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+ return {
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+ name: item.name,
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+ value: [item.lng - 0, item.lat - 0, item.cityCount],
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+ };
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+ });
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+ setData(data);
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+ });
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+ }, []);
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+
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+ useEffect(() => {
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+ setOption({
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+ tooltip: {
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+ trigger: 'item',
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+ formatter: params => {
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+ return `${params.data.name}: ${params.data.value[2]}`;
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+ },
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+ },
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+ geo: {
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+ map: 'china',
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+ roam: 'move',
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+ zoom: zoom,
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+ label: {
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+ normal: {
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+ show: true,
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+ color: '#aaa',
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+ },
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+ emphasis: {
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+ show: true,
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+ },
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+ },
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+ itemStyle: {
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+ normal: {
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+ areaColor: '#f3f3f3',
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+ borderColor: '#ddd',
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+ },
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+ emphasis: {
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+ areaColor: '#eee',
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+ },
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+ },
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+ },
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+ series: [
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+ {
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+ name: '人数',
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+ type: 'scatter',
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+ coordinateSystem: 'geo',
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+ data,
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+ symbolSize: 10,
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+ label: {
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+ normal: {
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+ formatter: '{b}',
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+ position: 'right',
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+ show: false,
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+ },
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+ emphasis: {
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+ show: true,
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+ },
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+ },
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+ itemStyle: {
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+ normal: {
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+ color: '#DB3C4B',
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+ },
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+ },
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+ },
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+ {
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+ name: '前三',
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+ type: 'effectScatter',
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+ coordinateSystem: 'geo',
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+ data: data
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+ .sort(function(a, b) {
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+ return b.value[2] - a.value[2];
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+ })
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+ .slice(0, 3),
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+ symbolSize: function(val) {
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+ return mapDataRange(val[2]);
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+ },
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+ showEffectOn: 'render',
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+ rippleEffect: {
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+ brushType: 'stroke',
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+ },
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+ hoverAnimation: true,
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+ label: {
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+ normal: {
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+ formatter: '{b}',
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+ position: 'right',
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+ show: false,
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+ },
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+ },
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+ itemStyle: {
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+ normal: {
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+ color: '#DB3C4B',
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+ shadowBlur: 10,
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+ shadowColor: '#333',
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+ },
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+ },
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+ zlevel: 1,
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+ },
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+ ],
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+ });
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+ }, [data, zoom]);
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+
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+ const marks = [0.5,2];
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+
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+ return (
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+ <Card
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+ title={
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+ <div>
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+ 城市分布
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+ <span style={{ fontSize: '8px', color: '#c4c4c4' }}>(数据会存在一定时间延迟)</span>
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+ </div>
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+ }
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+ headStyle={{ textAlign: 'left' }}
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+ // extra={<TimeSelect onChange={onTimeChange}></TimeSelect>}
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+ >
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+ <div style={{ display: 'flex' }}>
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+ <div style={{ width: '50px', display: 'inline-block', height: 300 }}>
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+ <Slider value={zoom} vertical min={0.5} step={0.1} max={5} defaultValue={1} onChange={(value)=>{setZoom(value)}}/>
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+ </div>
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+ <div style={{flex:'1'}}>
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+ <Echart options={option} style={{ width: '100%', height: '600px' }}></Echart>
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+ </div>
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+
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+ </div>
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+ </Card>
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+ );
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+};
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+
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+export default CityNums;
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