scatterGL-weibo.html
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<!doctype html>
<html>
<head>
<meta charset="utf-8">
<title>ScatterGL - ECHARTS-GL</title>
<meta name="viewport" content="width=device-width, initial-scale=1, user-scalable=no">
<meta name="apple-mobile-web-app-capable" content="yes"> <!-- Fullscreen Landscape on iOS -->
<link rel="stylesheet" href="./common.css">
</head>
<body>
<div id="main"></div>
<script src="../node_modules/echarts/dist/echarts.js"></script>
<script src="https://cdn.jsdelivr.net/npm/echarts@4.9.0/map/js/china.js"></script>
<script src="../dist/echarts-gl.js"></script>
<script src="lib/jquery.min.js"></script>
<script src="js/commonUI.js"></script>
<script>
var chart = echarts.init(document.getElementById('main'));
$.getJSON('data/weibo.json', function (weiboData) {
weiboData = weiboData.map(function (serieData, idx) {
var px = serieData[0] / 1000;
var py = serieData[1] / 1000;
var res = [[px, py]];
for (var i = 2; i < serieData.length; i += 2) {
var dx = serieData[i] / 1000;
var dy = serieData[i + 1] / 1000;
var x = px + dx;
var y = py + dy;
res.push([x.toFixed(2), y.toFixed(2), 1]);
px = x;
py = y;
}
return res;
});
chart.setOption(option = {
title : {
text: '微博签到数据点亮中国',
subtext: 'From ThinkGIS',
sublink: 'http://www.thinkgis.cn/public/sina',
left: 'center',
top: 'top',
textStyle: {
color: '#fff'
}
},
tooltip: {},
legend: {
left: 'left',
data: ['强', '中', '弱'],
textStyle: {
color: '#ccc'
}
},
geo: {
map: 'china',
roam: true,
label: {
emphasis: {
show: false
}
},
silent: true,
itemStyle: {
normal: {
areaColor: '#323c48',
borderColor: '#111'
},
emphasis: {
areaColor: '#2a333d'
}
}
},
series: [{
name: '弱',
type: 'scatterGL',
coordinateSystem: 'geo',
symbolSize: 1,
itemStyle: {
shadowBlur: 2,
shadowColor: 'rgba(37, 140, 249, 0.8)',
color: 'rgba(37, 140, 249, 0.8)'
},
data: weiboData[0]
}, {
name: '中',
type: 'scatterGL',
coordinateSystem: 'geo',
symbolSize: 1,
itemStyle: {
shadowBlur: 2,
shadowColor: 'rgba(14, 241, 242, 0.8)',
color: 'rgba(14, 241, 242, 0.8)'
},
data: weiboData[1]
}, {
name: '强',
type: 'scatterGL',
coordinateSystem: 'geo',
symbolSize: 1,
itemStyle: {
shadowBlur: 2,
shadowColor: 'rgba(255, 255, 255, 0.8)',
color: 'rgba(255, 255, 255, 0.8)'
},
data: weiboData[2]
}]
});
});
</script>
</body>
</html>