<!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" 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'));
var option;
var dataAxis = ['点', '击', '柱', '子', '或', '者', '两', '指', '在', '触', '屏', '上', '滑', '动', '能', '够', '自', '动', '缩', '放'];
var data = [220, 182, 191, 234, 290, 330, 310, 123, 442, 321, 90, 149, 210, 122, 133, 334, 198, 123, 125, 220];
var yMax = 500;
var dataShadow = [];
for(var i = 0; i < data.length; i++) {
dataShadow.push(yMax);
}
option = {
title: {
text: '特性示例：渐变色 阴影 点击缩放',
subtext: 'Feature Sample: Gradient Color, Shadow, Click Zoom'
},
xAxis: {
data: dataAxis,
axisLabel: {
inside: true,
textStyle: {
color: '#fff'
}
},
axisTick: {
show: false
},
axisLine: {
show: false
},
z: 10
},
yAxis: {
axisLine: {
show: false
},
axisTick: {
show: false
},
axisLabel: {
textStyle: {
color: '#999'
}
}
},
dataZoom: [{
type: 'inside'
}],
series: [{ // For shadow
type: 'bar',
itemStyle: {
normal: {
color: 'rgba(0,0,0,0.05)'
}
},
barGap: '-100%',
barCategoryGap: '40%',
data: dataShadow,
animation: false
},
{
type: 'bar',
itemStyle: {
normal: {
color: new echarts.graphic.LinearGradient(
0, 0, 0, 1, [{
offset: 0,
color: '#83bff6'
},
{
offset: 0.5,
color: '#188df0'
},
{
offset: 1,
color: '#188df0'
}
]
)
},
emphasis: {
color: new echarts.graphic.LinearGradient(
0, 0, 0, 1, [{
offset: 0,
color: '#2378f7'
},
{
offset: 0.7,
color: '#2378f7'
},
{
offset: 1,
color: '#83bff6'
}
]
)
}
},
data: data
}
]
};
// Enable data zoom when user click bar.
var zoomSize = 6;
myChart.on('click', function(params) {
console.log(dataAxis[Math.max(params.dataIndex - zoomSize / 2, 0)]);
myChart.dispatchAction({
type: 'dataZoom',
startValue: dataAxis[Math.max(params.dataIndex - zoomSize / 2, 0)],
endValue: dataAxis[Math.min(params.dataIndex + zoomSize / 2, data.length - 1)]
});
});
myChart.setOption(option);
</script>
</body>
</html>
