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echarts:迁徙图

鲤鱼打个滚 2022-01-24 阅读 77
<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8" />
		<title>echarts迁徙图</title>
		<script src="js/echarts.js"></script>
		<script src="js/map/js/china.js"></script>
	</head>
	<body>
		<div id="main" style="width: 600px;height:400px;margin: 0 auto;"></div>
		<script type="text/javascript">
			var myChart = null;
			var series = [];
			var chinaGeoCoordMap = {
				'黑龙江': [127.9688, 45.368],
				'内蒙古': [110.3467, 41.4899],
				"吉林": [125.8154, 44.2584],
				'北京市': [116.4551, 40.2539],
				"辽宁": [123.1238, 42.1216],
				"河北": [114.4995, 38.1006],
				"天津": [117.4219, 39.4189],
				"山西": [112.3352, 37.9413],
				"陕西": [109.1162, 34.2004],
				"甘肃": [103.5901, 36.3043],
				"宁夏": [106.3586, 38.1775],
				"青海": [101.4038, 36.8207],
				"新疆": [87.9236, 43.5883],
				"西藏": [91.11, 29.97],
				"四川": [103.9526, 30.7617],
				"重庆": [108.384366, 30.439702],
				"山东": [117.1582, 36.8701],
				"河南": [113.4668, 34.6234],
				"江苏": [118.8062, 31.9208],
				"安徽": [117.29, 32.0581],
				"湖北": [114.3896, 30.6628],
				"浙江": [119.5313, 29.8773],
				"福建": [119.4543, 25.9222],
				"江西": [116.0046, 28.6633],
				"湖南": [113.0823, 28.2568],
				"贵州": [106.6992, 26.7682],
				"云南": [102.9199, 25.4663],
				"广东": [113.12244, 23.009505],
				"广西": [108.479, 23.1152],
				"海南": [110.3893, 19.8516],
				'上海': [121.4648, 31.2891]
			};
			var chinaDatas = [
				[{
					name: '黑龙江',
					value: 0
				}],
				[{
					name: '内蒙古',
					value: 0
				}],
				[{
					name: '吉林',
					value: 0
				}],
				[{
					name: '辽宁',
					value: 0
				}],
				[{
					name: '河北',
					value: 0
				}],
				[{
					name: '天津',
					value: 0
				}],
				[{
					name: '山西',
					value: 0
				}],
				[{
					name: '陕西',
					value: 0
				}],
				[{
					name: '甘肃',
					value: 0
				}],
				[{
					name: '宁夏',
					value: 0
				}],
				[{
					name: '青海',
					value: 0
				}],
				[{
					name: '新疆',
					value: 0
				}],
				[{
					name: '西藏',
					value: 0
				}],
				[{
					name: '四川',
					value: 0
				}],
				[{
					name: '重庆',
					value: 0
				}],
				[{
					name: '山东',
					value: 0
				}],
				[{
					name: '河南',
					value: 0
				}],
				[{
					name: '江苏',
					value: 0
				}],
				[{
					name: '安徽',
					value: 0
				}],
				[{
					name: '湖北',
					value: 0
				}],
				[{
					name: '浙江',
					value: 0
				}],
				[{
					name: '福建',
					value: 0
				}],
				[{
					name: '江西',
					value: 0
				}],
				[{
					name: '湖南',
					value: 0
				}],
				[{
					name: '贵州',
					value: 0
				}],
				[{
					name: '广西',
					value: 0
				}],
				[{
					name: '海南',
					value: 0
				}],
				[{
					name: '上海',
					value: 1
				}]
			];

			var option = {
				tooltip: {
					trigger: 'item',
					backgroundColor: 'rgba(166, 200, 76, 0.82)',
					borderColor: '#FFFFCC',
					showDelay: 0,
					hideDelay: 0,
					enterable: true,
					transitionDuration: 0,
					extraCssText: 'z-index:100',
					formatter: function(params, ticket, callback) {
						//根据业务自己拓展要显示的内容
						var res = "";
						var name = params.name;
						var value = params.value[params.seriesIndex + 1];
						res = "<span style='color:#fff;'>" + name + "</span><br/>数据:" + value;
						return res;
					}
				},
				backgroundColor: "#013954",
				visualMap: { //图例值控制
					min: 0,
					max: 1,
					calculable: true,
					show: true,
					color: ['#f44336', '#fc9700', '#ffde00', '#ffde00', '#00eaff'],
					textStyle: {
						color: '#fff'
					}
				},
				geo: {
					map: 'china',
					zoom: 1.2,
					label: {
						emphasis: {
							show: false
						}
					},
					roam: true, //是否允许缩放
					itemStyle: {
						normal: {
							color: 'rgba(51, 69, 89, .5)', //地图背景色
							borderColor: '#516a89', //省市边界线00fcff 516a89
							borderWidth: 1
						},
						emphasis: {
							color: 'rgba(37, 43, 61, .5)' //悬浮背景
						}
					}
				},
				series: series
			};

			var convertData = function(data) {
				var res = [];
				for (var i = 0; i < data.length; i++) {
					var dataItem = data[i];
					var fromCoord = chinaGeoCoordMap[dataItem[0].name];
					var toCoord = [116.4551, 40.2539];
					if (fromCoord && toCoord) {
						res.push([{
							coord: fromCoord,
							value: dataItem[0].value
						}, {
							coord: toCoord,
						}]);
					}
				}
				return res;
			};

			[
				['北京市', chinaDatas]
			].forEach(function(item, i) {
				console.log(item)
				series.push({
						type: 'lines',
						zlevel: 2,
						effect: {
							show: true,
							period: 4, //箭头指向速度,值越小速度越快
							trailLength: 0.02, //特效尾迹长度[0,1]值越大,尾迹越长重
							symbol: 'arrow', //箭头图标
							symbolSize: 5, //图标大小
						},
						lineStyle: {
							normal: {
								width: 1, //尾迹线条宽度
								opacity: 1, //尾迹线条透明度
								curveness: .3 //尾迹线条曲直度
							}
						},
						data: convertData(item[1])
					}, {
						type: 'effectScatter',
						coordinateSystem: 'geo',
						zlevel: 2,
						rippleEffect: { //涟漪特效
							period: 4, //动画时间,值越小速度越快
							brushType: 'stroke', //波纹绘制方式 stroke, fill
							scale: 4 //波纹圆环最大限制,值越大波纹越大
						},
						label: {
							normal: {
								show: true,
								position: 'right', //显示位置
								offset: [5, 0], //偏移设置
								formatter: function(params) { //圆环显示文字
									return params.data.name;
								},
								fontSize: 13
							},
							emphasis: {
								show: true
							}
						},
						symbol: 'circle',
						symbolSize: function(val) {
							return 5 + val[2] * 5; //圆环大小
						},
						itemStyle: {
							normal: {
								show: false,
								color: '#f00'
							}
						},
						data: item[1].map(function(dataItem) {
							return {
								name: dataItem[0].name,
								value: chinaGeoCoordMap[dataItem[0].name].concat([dataItem[0].value])
							};
						}),
					},
					//被攻击点
					{
						type: 'scatter',
						coordinateSystem: 'geo',
						zlevel: 2,
						rippleEffect: {
							period: 4,
							brushType: 'stroke',
							scale: 4
						},
						label: {
							normal: {
								show: true,
								position: 'right',
								//offset:[5, 0],
								color: '#0f0',
								formatter: '{b}',
								textStyle: {
									color: "#0f0"
								}
							},
							emphasis: {
								show: true,
								color: "#f60"
							}
						},
						symbol: 'pin',
						symbolSize: 50,
						data: [{
							name: item[0],
							value: chinaGeoCoordMap[item[0]].concat([10]),
						}],
					}
				);
			});

			function initChart(id, option) {
				if (myChart != null && myChart != "" && myChart != undefined) {
					myChart.dispose();
				}
				// 基于准备好的dom,初始化echarts实例
				myChart = echarts.init(document.getElementById(id));
				// 使用刚指定的配置项和数据显示图表。
				myChart.setOption(option);
			}

			initChart('main', option);
		</script>
	</body>
</html>

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