[GitHub] [incubator-echarts] 100pah commented on issue #11885: Waterfall chart cannot process negative value as expected

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

100pah commented on issue #11885: Waterfall chart cannot process negative value as expected
URL: https://github.com/apache/incubator-echarts/issues/11885#issuecomment-568782745
 
 
   `stacked bar` does not support that mix positive and negative value.
   Perhaps we can only use [custom series](https://echarts.apache.org/en/option.html#series-custom) to render this kind of diagram.
   
   But should we support that specify the start points for each bar for this kind of scenario? 
   For example,
   
   ```js
   option = {
       xAxis: {},
       yAxis: {},
       series: [{
           bar: 'bar',
           encode: {
               x: 0,
               // When there are more than one dimensions specified on y,
               // the first dimension indicates the bar start, and the second 
               // indicates bar end.
               y: [1, 2] 
           },
           data: [
              //               bar start, bar end
               ['11-01',      55,            90],
               ['11-02',      65,           120],
               ['11-03',      75,           60],
               ['11-04',      85,           50]
           ]
       }]
   }
   ```
   

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