[GitHub] [echarts] helgasoft commented on issue #18281: [Bug] datazoom inside 横向展示 鼠标滚动方向与图表滚动方向不一致

["helgasoft (via GitHub)" <gi...@apache.org>]

helgasoft commented on issue #18281:
URL: https://github.com/apache/echarts/issues/18281#issuecomment-1435237179

   I do not think it is a bug, mostly a design **preference** of the developers.
   The scrolling direction looks fine to me.  To **reverse** it, one might have to change the mousewheel event parameter _zrDelta_. Something like:
   ```
   var zr = myChart.getZr();
   zr.on('mousewheel', function (params) {
     params.event.zrDelta = - params.wheelDelta;
     console.log(params.event.zrDelta +' '+ params.wheelDelta); 
     // successfully updated but does not change the direction...
   });
   ```


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