## Solution 这个效果可以用 VChart 的组合图实现。组合图可以配置两个饼图系列,第一个只有一条数据,用于模拟背景的环形;第二个系列就是常规的饼图系列。需要注意: * `padAngle`:配置间隔的角度; * `innerRadius`/`outerRadius`:配置内外半径。两个系列需要配置相同的内外半径; * 系列之间的顺序不要颠倒,因为后配置的系列层级更高; * 背景系列建议关闭动画 和 tooltip 交互;  代码参考: const spec = { type: 'common', data: [ { id: 'id0', values: [ { type: '0~9', value: '39.12' }, { type: '10~19', value: '43.01' }, { type: '20~29', value: '43.91' }, { type: '30~39', value: '45.4' }, { type: '40~49', value: '40.89' }, { type: '50~59', value: '42.48' }, { type: '60~69', value: '39.63' }, { type: '70~79', value: '25.17' }, { type: '80 and over', value: '12.29' } ] }, { id: 'id1', values: [ { type: '0~9', value: '1' }, ] } ], series: [ { type: 'pie', id: 'background', dataIndex: 1, outerRadius: 0.8, innerRadius: 0.67, valueField: 'value', categoryField: 'type', animation: false, tooltip: { visible: false }, pie: { style: { fill: 'rgb(237,239,242)', } } }, { type: 'pie', dataIndex: 0, outerRadius: 0.8, innerRadius: 0.67, valueField: 'value', padAngle: 2, categoryField: 'type', pie: { style: { cornerRadius: 20, }, state: { hover: { outerRadius: 0.82, innerRadius: 0.65, } } } } ], title: { visible: true, text: 'Population Distribution by Age in the United States, 2021 (in millions)', textStyle: { fontFamily: 'Times New Roman' } }, legends: { visible: true, orient: 'left', seriesIndex: [1] } }; ## 结果展示 Results 在线效果参考:[https://codesandbox.io/s/pie-background-with-padangle-365zgm](https://link.segmentfault.com/?enc=8ZYB%2BuGFoomHZ2YZCOnIWQ%3D%3D.lp1uSBnhqK64OPMffzo9PLSt6mJr15KMegO1TjRI17suM1OUEQvjMrxl08POFGLwjDbKuEiRYlfHSJSOGo6M3g%3D%3D)  ## 相关文档 Related Documentation 相关教程:[https://visactor.io/vchart/guide/tutorial_docs/Chart_Types/Co...](https://link.segmentfault.com/?enc=NwAWIWk5KKgolIOz3hKBCA%3D%3D.dnwM0euOJlIyld8G9mxVlwzyiWjH6R5moJ8nGy8tp%2FiGqlcfQMhi%2FiVEY%2BuZpThCryR1lJPuVfaPoCkPr7kSl7MKrUbxMO3yaUu%2BVGDzgNc%3D) 相关 demo:[https://visactor.io/vchart/demo/pie-chart/nested-pie?keyword=...](https://link.segmentfault.com/?enc=XI9WlgcZZk24%2BT9WeASVpA%3D%3D.6yontk5rCU0hQfPp4Fqz0A%2FhwIuEMV%2BH9vLh5clD1SNx4xxPEtQV95UpEyF1s843drpGrCpcmufDerYezuJD7H29sw6eSo5ElHZEQZkLJRc%3D) github:[https://github.com/VisActor/VChart](https://link.segmentfault.com/?enc=PE3BoyUgORG%2BIx5JA1OcbA%3D%3D.hxA2TEXWgB2i8Ltg7T6SzscHaRiUCm3jpdD0TFGO0j3%2BjG8NbEKWyxDZsKn5lboM)