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Boolean-based operation on overlapping CL paths for 3D models

机译:在3D模型的重叠CL路径上基于布尔的操作

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摘要

A 3D model can be machined in sections by dividing with cutting slices vertical to the z-axis. This paper introduces a Boolean-based algorithm for planar profiles, which is a frequent implementation for overlapping elimination in CL paths generation. In the proposed algorithm, the profiles can be convex or concave, with or without islands. It is available for general planar profiles on contouring and pocketing machining. This algorithm searches for all intervals split by intersections of complicate planar profiles directly and transforms 2D transversal intersection problems into ID interval identifications. It uses a simple but efficient odd-even determination based on interval-linked sets by tracking the intersections along the governing profile. Depending on the operation of Boolean union, intersection, and difference between two profiles, the solutions can be obtained under the same manipulation procedures. This proposed algorithm can be easily adapted to Boolean operations between regions composed of general closed profiles and be implemented on computerised CAD/CAM systems. Examples with various multiple profiles are demonstrated.
机译:通过用垂直于z轴的切割切片进行划分,可以分段加工3D模型。本文介绍了一种基于布尔的平面轮廓算法,这是CL路径生成中重叠消除的一种常见实现方式。在提出的算法中,轮廓可以是凸的或凹的,有或没有岛。它可用于轮廓加工和腔加工中的普通平面轮廓。该算法直接搜索由复杂平面轮廓的交点分割的所有间隔,并将2D横向交点问题转换为ID间隔标识。它通过跟踪沿控制曲线的交点,使用基于间隔链接集的简单但有效的奇偶确定。根据布尔联合,交集和两个配置文件之间的差异的运算,可以在相同的操作过程下获得解。该算法可以很容易地适应由一般封闭轮廓组成的区域之间的布尔运算,并可以在计算机化的CAD / CAM系统上实现。演示了具有多个多重配置文件的示例。

著录项

  • 来源
    《International Journal of Production Research》 |2012年第4期|p.379-392|共14页
  • 作者

    Jui-Pin Hung; Yuan-Lung Lai;

  • 作者单位

    Department of Mechanical Engineering, National Chin-Yi University of Technology, 35, Section 1, Chung-Shan Road, Taiping, Taichung, Taiwan 411, Republic of China;

    Department of Mechanical and Automation Engineering, Da-Yeh University, 168, University Road, Dacun, Changhua, Taiwan 515, Republic of China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    boolean operation; intersection; CL path;

    机译:布尔运算;路口;CL路径;

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