slides/ani/asset/ec-demo/transform-data-zoom.html (120 lines of code) (raw):
<html>
<head>
<meta charset="utf-8">
<script src="../common/echarts.min.js"></script>
<script src="../common/map/js/world.js"></script>
<script src="../data/price-and-earnings.js"></script>
<link rel="stylesheet" href="../common/reset.css">
</head>
<body>
<style>
</style>
<div id="main"></div>
<script>
var myChart = echarts.init(document.getElementById('main'));
var animation = location.href.split('?');
if (animation[1]) {
var match = animation[1].match(/animation=([a-zA-Z0-9_]+)/);
animation = match[1] !== 'false' && match[1] !== '0' && !!match[1];
}
else {
animation = true;
}
var dataAxis = 'ABCDEFGHIJKLMNOPQRST'.split('');
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 = {
animation: animation,
backgroundColor: '#eee',
xAxis: {
data: dataAxis,
max: dataAxis.length - 1,
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>