[GitHub] Ajaxluo commented on issue #9258: timeline在ie下性能问题

[GitBox <gi...@apache.org>]

Ajaxluo commented on issue #9258: timeline在ie下性能问题
URL: https://github.com/apache/incubator-echarts/issues/9258#issuecomment-433326647
 
 
   可以在IE10或IE10下打开官方实例：
   http://www.echartsjs.com/examples/editor.html?c=dynamic-data2
   修改以下配置部分：
   ```
   for (var i = 0; i < 80000; i++) {
       data.push(randomData());
   }
   
    series: [{
           name: '模拟数据',
           type: 'line',
           showSymbol: false,
           hoverAnimation: false,
           data: data,
           sampling:'average',
           areaStyle: {
               color: new echarts.graphic.LinearGradient(0, 0, 0, 1, [{
               offset: 0,
               color: 'rgb(255, 158, 68)'
               }, {
               offset: 1,
               color: 'rgb(255, 70, 131)'
               }])
           },
               data: data
       }]
   
   setInterval(function () {
   
       for (var i = 0; i < 5; i++) {
           data.shift();
           data.push(randomData());
       }
   
       myChart.setOption({
           series: [{
               data: data
           }]
       });
   }, 2000);
   ```
   修改完毕后运行，会发现官网上面顶部菜单导航点击事件就会变得卡顿，如果在配置低的IE机器甚至崩溃
   在其他谷歌等浏览器均比较流畅。不必对每个x轴时间点都去绘制，准确表示一种趋势即可，有没有对ie再有优化的余地。
   

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