树图删除中间的某个节点并保留他的子节点 about g6 HOT 2 OPEN

import G6 from '@antv/g6';

fetch('https://gw.alipayobjects.com/os/antvdemo/assets/data/algorithm-category.json')
  .then((res) => res.json())
  .then((data) => {
    const container = document.getElementById('container');
    const width = container.scrollWidth;
    const height = container.scrollHeight || 500;
    const graph = new G6.TreeGraph({
      container: 'container',
      width,
      height,
      linkCenter: true,
      modes: {
        default: [
          // {
          //   type: 'collapse-expand',
          //   onChange: function onChange(item, collapsed) {
          //     const data = item.getModel();
          //     data.collapsed = collapsed;
          //     return true;
          //   },
          // },
          'drag-canvas',
          'zoom-canvas',
        ],
      },
      defaultNode: {
        size: 26,
        anchorPoints: [
          [0, 0.5],
          [1, 0.5],
        ],
      },
      defaultEdge: {
        type: 'cubic-vertical',
      },
      layout: {
        type: 'compactBox',
        direction: 'TB',
        getId: function getId(d) {
          return d.id;
        },
        getHeight: function getHeight() {
          return 16;
        },
        getWidth: function getWidth() {
          return 16;
        },
        getVGap: function getVGap() {
          return 80;
        },
        getHGap: function getHGap() {
          return 20;
        },
      },
    });

    graph.node(function (node) {
      let position = 'right';
      let rotate = 0;
      if (!node.children) {
        position = 'bottom';
        rotate = Math.PI / 2;
      }
      return {
        label: node.id,
        labelCfg: {
          position,
          offset: 5,
          style: {
            rotate,
            textAlign: 'start',
          },
        },
      };
    });

    //临时点击节点删除，请点击中间节点进行测试场景(实际会有菜单进行点击删除)
    graph.on('node:click',(e) => {
      //删除当前节点，并将子节点全部交给父节点，使用updateChidren直接更新父节点的子树
      const {item} = e;
      console.log('item:',item)
      const newChildren = item?._cfg?.children?.map(child => {
        const curItem = child.getModel();
        return curItem;
        // return {...curItem, id: curItem.id + '-'}  //更换新id
      });
      const curChildren = item?._cfg?.parent?._cfg?.children?.map(child => child.getModel())?.filter(c => c.id !== item?._cfg?.id);
      const parentId = item?._cfg?.parent?._cfg?.id;
      graph.updateChildren([...curChildren,...newChildren],parentId)
    })

    graph.data(data);
    graph.render();
    graph.fitView();

    if (typeof window !== 'undefined')
      window.onresize = () => {
        if (!graph || graph.get('destroyed')) return;
        if (!container || !container.scrollWidth || !container.scrollHeight) return;
        graph.changeSize(container.scrollWidth, container.scrollHeight);
      };
  });