[GitHub] wupengFEX opened a new issue #8653: echarts在定义colors的前提下如何自动根据这些颜色设置渐变

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

wupengFEX opened a new issue #8653: echarts在定义colors的前提下如何自动根据这些颜色设置渐变
URL: https://github.com/apache/incubator-echarts/issues/8653
 
 
   ### One-line summary [问题简述]
   目前我在自定义 echarts 模版，遇到的问题是在定义了全局 colors 的情况下无法让图表根据选中的颜色(colors 中的)设置渐变（渐变的位置可以自定义），官方示例提供的都是自定义颜色来生成的渐变，如：
   ```
   {
           "color": [
               "#c23531",
               "#2f4554",
               "#61a0a8",
               "#d48265",
               "#91c7ae",
               "#749f83",
               "#ca8622",
               "#bda29a",
               "#6e7074",
               "#546570",
               "#c4ccd3"
           ],
         "line": {
               itemStyle: {
               normal: {
                   color: new echarts.graphic.LinearGradient(
                       0, 0, 0, 1,
                       [
                           {offset: 0, color: '#83bff6'},
                           {offset: 0.5, color: '#188df0'},
                           {offset: 1, color: '#188df0'}
                       ]
                   )
               }
           }
       }
   }
   ```
   请问如何在不需要手动设置颜色（echarts从colors里面自动提取）的情况下设置渐变？

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