[GitHub] [echarts] dovydasrudys commented on issue #17130: [Bug] 热力图不能同时根据x,y轴的值排序吗？heatmap can not be sorted based on the x-axis and y-axis

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

dovydasrudys commented on issue #17130:
URL: https://github.com/apache/echarts/issues/17130#issuecomment-1189008863

   You are asking echarts to make a dataset for you which is first sorted by "Age" dimension, and if the "Age" dimension is equal only then sort it by "Pclass" which then goes like that:
   | Position | Age | Pclass |
   |-------------------------|
   |       1      | 0.83 |    2     |  <---- Lowest Age
   |       2      |    1   |    2     |  <---- Age higher than previous
   |       3      |   54  |    1     |  <---- Age higher than previous
   |       4      |   55  |    1     |  <---- Age higher than previous
   |       5      | 70.5 |    3     |  <---- Age higher than previous
   |       6      |  74   |    3     |  <---- Age higher than previous
   
   So, essentially you are sorting only by Age. In order to achieve your expected result you want your transform to look like this:
   ```
   "transform": {
               "type": "sort",
               "config": [
                 {
                       "dimension": "Pclass",
                       "order": "asc"
                   },
                   {
                       "dimension": "Age",
                       "order": "desc"
                   },
               ]
           }
   ```


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