echrts环形图默认选中，且不会消失

va8zu9ts

已于 2024-02-26 11:11:05 修改

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文章标签：前端 vue.js javascript 1024程序员节

于 2023-10-20 10:12:04 首次发布

本文链接：https://blog.youkuaiyun.com/m0_70265923/article/details/133940602

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  let index = 0;
  setTimeout(() => {
    myChart.dispatchAction({
      type: "highlight",
      dataIndex: 0, //默认选中第一个
    });
  }, 0);
  myChart.on("mouseover", (e) => {
    if (e.dataIndex != index) {
      myChart.dispatchAction({
        type: "downplay",
        seriesIndex: 0,
        dataIndex: index,
      });
    }
  });
  myChart.on("mouseout", (e) => {
    index = e.dataIndex;
    myChart.dispatchAction({
      type: "highlight",
      seriesIndex: 0,
      dataIndex: e.dataIndex,
    });
  });