效果图
源代码
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>ECharts</title>
<!-- 引入 echarts.js -->
<script src="js/echarts.min.js"></script>
</head>
<body>
<!-- 为ECharts准备一个具备大小（宽高）的Dom -->
<div id="main" ></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'));
var option;
var xAxisData = [];
var data1 = [];
var data2 = [];
var data3 = [];
var data4 = [];
for(var i = 0; i < 10; i++) {
xAxisData.push('Class' + i);
data1.push((Math.random() * 2).toFixed(2));
data2.push(-Math.random().toFixed(2));
data3.push((Math.random() * 5).toFixed(2));
data4.push((Math.random() + 0.3).toFixed(2));
}
var itemStyle = {
normal: {},
emphasis: {
barBorderWidth: 1,
shadowBlur: 10,
shadowOffsetX: 0,
shadowOffsetY: 0,
shadowColor: 'rgba(0,0,0,0.5)'
}
};
option = {
backgroundColor: '#eee',
legend: {
data: ['bar', 'bar2', 'bar3', 'bar4'],
align: 'left',
left: 10
},
brush: {
toolbox: ['rect', 'polygon', 'lineX', 'lineY', 'keep', 'clear'],
xAxisIndex: 0
},
toolbox: {
feature: {
magicType: {
type: ['stack', 'tiled']
},
dataView: {}
}
},
tooltip: {},
xAxis: {
data: xAxisData,
name: 'X Axis',
silent: false,
axisLine: {
onZero: true
},
splitLine: {
show: false
},
splitArea: {
show: false
}
},
yAxis: {
inverse: true,
splitArea: {
show: false
}
},
grid: {
left: 100
},
visualMap: {
type: 'continuous',
dimension: 1,
text: ['High', 'Low'],
inverse: true,
itemHeight: 200,
calculable: true,
min: -2,
max: 6,
top: 60,
left: 10,
inRange: {
colorLightness: [0.4, 0.8]
},
outOfRange: {
color: '#bbb'
},
controller: {
inRange: {
color: '#2f4554'
}
}
},
series: [{
name: 'bar',
type: 'bar',
stack: 'one',
itemStyle: itemStyle,
data: data1
},
{
name: 'bar2',
type: 'bar',
stack: 'one',
itemStyle: itemStyle,
data: data2
},
{
name: 'bar3',
type: 'bar',
stack: 'two',
itemStyle: itemStyle,
data: data3
},
{
name: 'bar4',
type: 'bar',
stack: 'two',
itemStyle: itemStyle,
data: data4
}
]
};
myChart.on('brushSelected', renderBrushed);
function renderBrushed(params) {
var brushed = [];
var brushComponent = params.batch[0];
for(var sIdx = 0; sIdx < brushComponent.selected.length; sIdx++) {
var rawIndices = brushComponent.selected[sIdx].dataIndex;
brushed.push('[Series ' + sIdx + '] ' + rawIndices.join(', '));
}
myChart.setOption({
title: {
backgroundColor: '#333',
text: 'SELECTED DATA INDICES: \n' + brushed.join('\n'),
bottom: 0,
right: 0,
width: 100,
textStyle: {
fontSize: 12,
color: '#fff'
}
}
});
}
myChart.setOption(option);
</script>
</body>
</html>
