echarts鼠标上移的放大效果

问题遇到的现象和发生背景

有个需求是，当鼠标上移到echarts的时候，放大效果不明显，能不能调整鼠标上移的放大效果？放更大

问题相关代码，请勿粘贴截图
series: [
    {
      name: 'Access From',
      type: 'pie',
      radius: '50%',
      data: [
        { value: 1048, name: 'Search Engine' },
        { value: 735, name: 'Direct' },
        { value: 580, name: 'Email' },
        { value: 484, name: 'Union Ads' },
        { value: 300, name: 'Video Ads' }
      ],
      emphasis: {
        itemStyle: {
          shadowBlur: 10,
          shadowOffsetX: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)'
        }
      }
    }
  ]

emphasis下添加这个属性scaleSize，默认是10


emphasis: {
        scaleSize: 20,
        itemStyle: {
          shadowBlur: 10,
          shadowOffsetX: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)'
        }
}

修改scaleSize值


series: [
    {
      name: 'Access From',
      type: 'pie',
      radius: '50%',
      data: [
        { value: 1048, name: 'Search Engine' },
        { value: 735, name: 'Direct' },
        { value: 580, name: 'Email' },
        { value: 484, name: 'Union Ads' },
        { value: 300, name: 'Video Ads' }
      ],
      emphasis: {
        **scaleSize:100,**
        itemStyle: {
          shadowBlur: 10,
          shadowOffsetX: 0,
          shadowColor: 'rgba(0, 0, 0, 0.5)'
        }
      }
    }
  ]

scaleSize
https://echarts.apache.org/zh/option.html#series-pie.emphasis.scaleSize

v 5.0.0才支持 你需要注意版本

img