@alicloud/cloud-charts/es/common/updateChildrenPosition.js


import { FullCrossName } from '../constants';
/**
 * updateChildrenPosition，需要在 chart afterpaint 中调用，相比 afterrender 事件，在数据更新后也会触发 afterpaint
 *
 * @param {Chart} chart 图表实例
 * @param {HTMLElement} dom 元素节点
 * */

export default function (chart, dom) {
  // 更新子元素位置
  var childDom = dom && dom.querySelector("." + FullCrossName + "-children");

  if (childDom) {
    var centerPoint = chart.getCoordinate().getCenter();
    childDom.style.left = centerPoint.x + "px";
    childDom.style.top = centerPoint.y + "px";
  }
}