liuyuebai opened a new issue #10066: Multiple series tree diagrams cannot be 
moved or zoom in and out at the same time
URL: https://github.com/apache/incubator-echarts/issues/10066
 
 
   ### **Issue Type**
     I have a feature to enhance, e.g.: The current feature should be improved 
in the way that ...;
   ### **Brief description of the problem**
     Multiple series tree diagrams cannot be moved or zoom in and out at the 
same time
     code: let roam=false;
                   if(this.shareHolderData){
                       option.series.push({
                           type: "tree",
                           data: [this.shareHolderData],
                           bottom: '50%',
                           symbol:  "emptyCircle",
                           orient: "BT",
                           roam:true,
                       });
                   }
                   if(this.investmentData){
                       option.series.push({
                           type: "tree",
                           data: [this.investmentData],
                           top: '50%',
                           symbol:  "emptyCircle",
                           orient: "vertical",
                           z:1,
                           roam:roam,
                       })
                   }
                   this.myChart.setOption(option);
   
      The above code can realize the two trees in the following figure to move 
or shrink at the same time in 
      E2, but in E4, only one tree can be moved or reduced.
     
     
![default](https://user-images.githubusercontent.com/29316008/53999576-de228600-417e-11e9-91b6-80d380e76290.png)
     As shown above, the two trees are set up with roam at the same time, but 
they can only be moved one 
     by one or zoomed in and out.
   
    ### **Version & Environment**
     ECharts version:4.2.0-rc.2
     Browser::Firefox  chrome
     OS Version:windows
   
   ### **Desired result**
     I hope that in E4, as in E2, the two series tree diagrams are all set up 
with roam, which can be moved or 
     enlarged at the same time. It is not only possible to operate one of them.
   

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