Computer-Assisted Methods for Defining 3D Geometric Structure of Mechanical Parts

  • Z. Chen
  • D. B. Perng


In a mechanical CAD/CAM system the 3D geometric structure of parts have to be specified. There are two classes of methods for specifying the geometry of the parts, i.e., 2D-oriented and 3D-oriented. In the first class we examine the methods of representing the mechanical part by an engineering drawing with the top, front, and side views in orthographic projection. We shall propose a system which automatically interprets the engineering drawing by employing image processing techniques and derives the 3D geometry of the part from the 2D views.

Next, the class of 3D-oriented methods for part geometric modeling if reviewed. In this class we shall provide a system to facilitate the user to creat and edit a 3D part, with the aid of both wire frame and shaded displays.


Mechanical Part Wire Frame Engineering Drawing Geometric Operation Primitive Object 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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Copyright information

© Plenum Press, New York 1985

Authors and Affiliations

  • Z. Chen
    • 1
  • D. B. Perng
    • 1
  1. 1.Institute of Computer EngineeringNational Chiao Tung UniversityHsinchuTaiwan, R.O.C.

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