多个图表共同使用一个dataset
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ECharts 实例</title>
<!-- 引入 echarts.js -->
<script src="https://cdn.staticfile.org/echarts/4.3.0/echarts.min.js"></script>
</head>
<body>
<!-- 为ECharts准备一个具备大小（宽高）的Dom -->
<div id="main" style="width: 600px;height:400px;"></div>
<script type="text/javascript">
// 基于准备好的dom，初始化echarts实例
var myChart = echarts.init(document.getElementById('main'));
setTimeout(function () {
option = {
legend: {},
tooltip: {
trigger: 'axis',
showContent: false
},
dataset: {
source: [
['product', '2012', '2013', '2014', '2015', '2016', '2017'],
['Matcha Latte', 41.1, 30.4, 65.1, 53.3, 83.8, 98.7],
['Milk Tea', 86.5, 92.1, 85.7, 83.1, 73.4, 55.1],
['Cheese Cocoa', 24.1, 67.2, 79.5, 86.4, 65.2, 82.5],
['Walnut Brownie', 55.2, 67.1, 69.2, 72.4, 53.9, 39.1]
]
},
xAxis: {type: 'category'},
yAxis: {gridIndex: 0},
grid: {top: '55%'},
series: [
{type: 'line', smooth: true, seriesLayoutBy: 'row'},
{type: 'line', smooth: true, seriesLayoutBy: 'row'},
{type: 'line', smooth: true, seriesLayoutBy: 'row'},
{type: 'line', smooth: true, seriesLayoutBy: 'row'},
{
type: 'pie',
id: 'pie',
radius: '30%',
center: ['50%', '25%'],
label: {
formatter: '{b}: {@2012} ({d}%)'
},
encode: {
itemName: 'product',
value: '2012',
tooltip: '2012'
}
}
]
};
myChart.on('updateAxisPointer', function (event) {
var xAxisInfo = event.axesInfo[0];
if (xAxisInfo) {
var dimension = xAxisInfo.value + 1;
myChart.setOption({
series: {
id: 'pie',
label: {
formatter: '{b}: {@[' + dimension + ']} ({d}%)'
},
encode: {
value: dimension,
tooltip: dimension
}
}
});
}
});
myChart.setOption(option);
});
</script>
</body>
</html>