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ddei-autolink

v1.1.1

Published

该包用于在两个图形之间生成链接路径,实现自动连线功能、并返回中间节点。This package is used to generate link paths between two graphics, achieve automatic connection function, and return path's nodes.

Downloads

102

Readme

ddei-autolink

介绍

该包用于在两个图形之间生成链接路径,实现自动连线功能、并返回中间节点。 特性: 1.自动躲避障碍 2.寻找看起来尽可能美观的路径功能 3.够通过优先级影响寻路结果

感兴趣的朋友可以登陆ddei在线设计器体验效果 如有问题可以联系QQ:3697355039 步骤: 注册账号 >>>> 创建设计图 >>>> 创建图形和连线。

https://www.ddei.top

安装教程

  1. npm i ddei-autolink

使用说明

  1. 引入包 import { calAutoLinePath, getRecommendPath } from 'ddei-autolink'

  2. 构建开始点和结束点信息 参考以下例子构建json对象,包含:点坐标、开始图形的外接矩形、开始点相对于所在外接矩形中心点的角度/方向 三个属性

let startPoint = {
        point: {   //点坐标
          x: x,
          y: y
        },
        rect: {x:startX,y:startY,x1:endX,y1:endY,width:width,height:height}, //外接矩形
        angle: -90,  //角度-90上、0右、90下、180左,传入角度可以不传方向
        direct:1   //方向1上、2右、3下、4左,传入方向可以不传入角度
      },
  1. 构建障碍物(该步骤可以省略) 参考以下例子构建json数组,每个子元素代表一个障碍物,包含:外接点集合,开始结束标识。开始和结束点所在的外接矩形也需要加入障碍物中。
let obis = []
    //创建一个障碍物并加入障碍物数组中
    let obj = { 
          points: [ //当前障碍物的多个外接点,按顺时针顺序传入,点的数量>2
              {x:0,y:0},
              {x:100,y:0},
              {x:100,y:100},
              {x:0,y:100}
          ],
          isStartOrEnd:true/false //开始结束标识,如果当前障碍物是开始结束节点所在的图形,则传入true,否则false
     }
    obis.push(obj)
  1. 获取推荐路径(该步骤可以省略) 通过调用getRecommendPath方法获取推荐路径,推荐路径是预置路径,可以在寻路时影响寻路结果,使寻路结果更倾向于美观 其中sAngle、eAngle 为开始点和结束点的角度,取值为-90上、0右、90下、180左 startPoint, endPoint 为开始点和结束点 startRect, endRect 为开始和结束点所在的外接矩形 这六个参数都可以在步骤1获取。

let recommendPaths = getRecommendPath(sAngle, eAngle, startPoint, endPoint, startRect, endRect)
  1. 调用calAutoLinePath方法生成路径

let linePathData = calAutoLinePath(
      startPoint, //第二步构建的开始点
      endPoint,   //第二步构建的结束点
      obis,       //第三步构建的障碍物
      {           //如果需要使用推荐路径或者强制路径功能,则需要传入此参数,其余情况可以不传
        recommendPaths: recommendPaths,   //第四步的返回值
        forcePaths: forcePaths,       //强制路径,如果没有可以不传入
        recomWeight: 100,             //推荐路径权重,默认100
        rectMidWeight: 50             //矩形中线权重,默认50
      })
  1. 读取pathPoints,获取连线路径,第一个元素为开始点,最后一个元素为结束点,其余为中间经过的点
let pathPoints = linePathData.pathPoints
     let startPathPoint = pathPoints[0] //开始点
     let endPathPoint = pathPoints[pathPoints.length-1] //结束点

参与贡献

  1. Fork 本仓库
  2. 新建 Feat_xxx 分支
  3. 提交代码
  4. 新建 Pull Request