[GitHub] [echarts] aloybach edited a comment on issue #15220: Support for adding images programmatically and improvement to the formatter function

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

aloybach edited a comment on issue #15220:
URL: https://github.com/apache/echarts/issues/15220#issuecomment-887922957


   Hi,
   I experienced the same thing in:  backgroundcolor { image: function (value) { return value} }
   Why function can't read yAxis "value" ?
   Even though the function works as it should in
   itemStyle: {
   color: function(c) returncountryColors[c.value[0]] || '#5470c6';}
   },
   Is this a bug or is it  " backgroundcolor {image: } " can not be used for dynamic variables ?
   
   Best Regards,
   
   ---
   Below are a part of my script of "bar race" :
   ```ts
   yAxis: [{
     inverse: true,
     type: 'category',
     max: 14,
     axisLabel: {
        show: true,
        textStyle: {fontSize: 14},					
        formatter: function(value){return '{yaxPLabel|'+value+'}{yaxPSymbol|}';}, 
        rich: {
           yaxPLabel: {
              align: 'left',
              padding: [0, 10, 0, 0]
   	},
   	yaxPSymbol: {
   	   height: 15, width: 10,
   	   align: 'right', padding: 5,
   	   backgroundColor: {
   	      image: function(value){return provinceSymbols[value.toString] || provinceSymbols['Texas'];}
   	   }
   	}
        }
      },					
      animationDurationUpdate: axisDurationUpdate,
      animationEasingUpdate: 'linear'
   }],
   ```


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