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apache / echarts / refs/tags/1.4.1 / . / doc / example / dynamicLineBar.html
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<textarea id="code" name="code">
option = {
title : {
text: '动态数据',
subtext: '纯属虚构'
},
tooltip : {
trigger: 'axis'
},
legend: {
data:['最新成交价', '预购队列']
},
toolbox: {
show : true,
feature : {
mark : {show: true},
dataView : {show: true, readOnly: false},
magicType : {show: true, type: ['line', 'bar']},
restore : {show: true},
saveAsImage : {show: true}
}
},
dataZoom : {
show : false,
realtime: true,
start : 50,
end : 100
},
xAxis : [
{
type : 'category',
boundaryGap : true,
data : (function(){
var now = new Date();
var res = [];
var len = 10;
while (len--) {
res.unshift(now.toLocaleTimeString().replace(/^\D*/,''));
now = new Date(now - 2000);
}
return res;
})()
},
{
type : 'category',
boundaryGap : true,
splitline : {show : false},
data : (function(){
var res = [];
var len = 10;
while (len--) {
res.push(len + 1);
}
return res;
})()
}
],
yAxis : [
{
type : 'value',
scale: true,
precision:1,
power:1,
name : '价格',
boundaryGap: [0.2, 0.2],
splitArea : {show : true}
},
{
type : 'value',
scale: true,
name : '预购量',
boundaryGap: [0.2, 0.2]
}
],
series : [
{
name:'预购队列',
type:'bar',
xAxisIndex: 1,
yAxisIndex: 1,
itemStyle: {
normal: {
color : 'rgba(135,206,205,0.4)'
}
},
data:(function(){
var res = [];
var len = 10;
while (len--) {
res.push(Math.round(Math.random() * 1000));
}
return res;
})()
},
{
name:'最新成交价',
type:'line',
itemStyle: {
normal: {
// areaStyle: {type: 'default'},
lineStyle: {
shadowColor : 'rgba(0,0,0,0.4)'
}
}
},
data:(function(){
var res = [];
var len = 10;
while (len--) {
res.push((Math.random()*10 + 5).toFixed(1) - 0);
}
return res;
})()
}
]
};
var lastData = 11;
var axisData;
clearInterval(timeTicket);
timeTicket = setInterval(function(){
lastData += Math.random() * ((Math.round(Math.random() * 10) % 2) == 0 ? 1 : -1);
lastData = lastData.toFixed(1) - 0;
axisData = (new Date()).toLocaleTimeString().replace(/^\D*/,'');
// 动态数据接口 addData
myChart.addData([
[
0, // 系列索引
Math.round(Math.random() * 1000), // 新增数据
true, // 新增数据是否从队列头部插入
false // 是否增加队列长度，false则自定删除原有数据，队头插入删队尾，队尾插入删队头
],
[
1, // 系列索引
lastData, // 新增数据
false, // 新增数据是否从队列头部插入
false, // 是否增加队列长度，false则自定删除原有数据，队头插入删队尾，队尾插入删队头
axisData // 坐标轴标签
]
]);
}, 2000);
</textarea>
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