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ld_algorithm

v1.0.15

Published

树形节点布局算法库,自动计算树状结构中每个节点的 x/y 坐标。

Downloads

1,951

Readme

ld_algorithm

树形节点布局算法库,自动计算树状结构中每个节点的 x/y 坐标。

安装

npm install ld_algorithm

使用

import { BaseData, type INodeData } from "ld_algorithm";

class MyLayout extends BaseData {
  constructor() {
    super("root"); // 传入根节点 id
    this.addRight({ id: "a", w: 80, h: 40, x: 0, y: 0 }, "root", "right");
    this.addRight({ id: "b", w: 80, h: 40, x: 0, y: 0 }, "a", "bottom");
    this.calculateNodePosition();
    console.log(this.getData());
  }
}

API

| 方法 | 说明 | | -------------------------------------- | ----------------------------------------------------------- | | constructor(rootId) | 初始化,传入根节点 id | | addRight(node, attachId, direction?) | 在 attachId 节点的指定方向插入新节点 | | del(id, delChildren?) | 删除节点,delChildren=true 递归删除子节点,否则子节点上移 | | calculateNodePosition() | 计算所有节点的 x/y 坐标 | | getData(readonly?) | 获取节点数据,默认返回浅拷贝 |

addRight direction 说明

| direction | 行为 | | ----------------- | ---------------------------------------------------- | | "right"(默认) | 插入为 attachNode 的子节点,原有子节点转移到新节点下 | | "left" | 插入在 attachNode 与其父节点之间 | | "top" | 作为 attachNode 的前置兄弟节点插入 | | "bottom" | 作为 attachNode 的后置兄弟节点插入 |

根节点不支持 left / top / bottom 方向。

默认间距

水平 / 垂直间距均为 50px