[GitHub] Yhspehy opened a new issue #8120: 使用echarts-wordcloud导出base64图片信息不完整

[GitBox]

Yhspehy opened a new issue #8120: 使用echarts-wordcloud导出base64图片信息不完整
URL: https://github.com/apache/incubator-echarts/issues/8120
 
 
   <!--
   为了方便我们能够复现和修复 bug，请遵从下面的规范描述您的问题。
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   ### 使用echarts-wordcloud导出base64图片信息的时候，发现base64位的编码信息不完整，放在img上后无法渲染出图片。
   
   
   
   
   
   ### Version & Environment [版本及环境]
   + ECharts version [ECharts 版本]:^3.8.5
   + Echarts-wordcloud [Echarts-wordcloud版本]:^1.1.3
   + Browser version [浏览器类型和版本]:Chrome 65
   + OS Version [操作系统类型和版本]: Win8
   
   
   
   
   
   ### Expected behaviour [期望结果]
   
   能够得到渲染出图片的base64字符串
   
   
   
   ### ECharts option [ECharts配置项]
   <!-- Copy and paste your 'echarts option' here. -->
   <!-- [下方贴你的option，注意不要删掉下方 ```javascript 和 尾部的 ``` 字样。最好是我们能够直接运行的 
option。如何得到能运行的 option 参见上方的 guidelines for contributing] -->
   ```javascript
   let wordCloud = echarts.init(
       document.getElementById(id)
     )
     wordCloud.setOption({
       series: [{
         type: 'wordCloud',
         shape: 'circle',
         sizeRange: [12, 30],
         rotationRange: [-60, 60],
         textRotation: [0, 45, 90, -45],
         rotationStep: 45,
         width: 390,
         height: 370,
         drawOutOfBound: false,
         textStyle: {
           normal: {
             color: function () {
               return 'rgb(' + [
                 Math.round(Math.random() * 160),
                 Math.round(Math.random() * 160),
                 Math.round(Math.random() * 160)
               ].join(',') + ')'
             }
           },
           emphasis: {
             shadowBlur: 10,
             shadowColor: '#333'
           }
         },
         data: data.slice(0, 100)
       }]
     })
     return wordCloud.getDataURL({
       pixelRatio: 2,
       backgroundColor: '#fff'
     })
   ```
   

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