[GitHub] [incubator-echarts] Kafty opened a new issue #10381: datazoom does not return start and end values

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

Kafty opened a new issue #10381: datazoom does not return start and end values
URL: https://github.com/apache/incubator-echarts/issues/10381
 
 
   ### Version
   4.1.0-release
   
   ### Reproduction link
   [https://ecomfe.github.io/echarts-examples/public/editor.html?c=doc-example/getting-started](https://ecomfe.github.io/echarts-examples/public/editor.html?c=doc-example/getting-started)
   
   ### Steps to reproduce
   Please copy this into input on the left side.
   
   // please copy this :)
   
   option = {
       title: {
           text: 'ECharts 入门示例'
       },
       tooltip: {},
       legend: {
           data:['销量']
       },
       xAxis: {
           data: ["衬衫","羊毛衫","雪纺衫","裤子","高跟鞋","袜子"]
       },
       yAxis: {},
       series: [{
           name: '销量',
           type: 'bar',
           data: [5, 20, 36, 10, 10, 20]
       }],
       toolbox: {
           feature: {
               restore: {
                   title: 'Restore',
               },
               dataZoom: {
                   title: {
                       zoom: 'Zoom',
                       back: 'Back',
                       clear: 'Back',
                   },
                   restore: {
                       title: 'Restore',
                   },
               },
           },
       },
       dataZoom: [
           {
               type: 'inside',
               show: true,
               zoomOnMouseWheel: false,
               moveOnMouseMove: false,
           },    
       ]
   };
   
   myChart.on('dataZoom', function (params) {
       console.log(params);
       
       // should return percentage values, but returns undefined
       console.log(params.batch[0].start);
       console.log(params.batch[0].end);
   });
   
   myChart.on('dataZoom', function (params) {
       console.log(params);
       
       // should return percentage values, but returns undefined
       console.log(params.batch[0].start);
       console.log(params.batch[0].end);
   });
   
   then try to zoom graph, and then have a look into console
   
   ### What is expected?
   I thought, the dataZoom event (triggered after zooming the graph using the toolbox buttons) would return start and end values in percent
   
   ### What is actually happening?
   start and end (percents) returns undefined. Values are not included in the payload of an event.
   
   ---
   Thank you :)
   
   <!-- This issue is generated by echarts-issue-helper. DO NOT REMOVE -->
   <!-- This issue is in English. DO NOT REMOVE -->

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