Reconstruction of quadric surface solids from three-view engineering drawings
✍ Scribed by MH Kuo
- Publisher
- Elsevier Science
- Year
- 1998
- Tongue
- English
- Weight
- 900 KB
- Volume
- 30
- Category
- Article
- ISSN
- 0010-4485
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✦ Synopsis
In this paper, a robust and systematic scheme that automatically interprets three-view engineering drawings as quadric surface mechanical parts is addressed. Initially a three-dimensional wireframe, with no face information in it, is reconstructed from the three orthographic projections. Next, all candidate faces are found within the wire-frame, using a minimum-internal-angle searching method. Then, pseudo elements that could be generated from backprojection are detected and deleted using a decision-chaining method. Finally, all true faces are assembled to form an oriented three-dimensional object. Face orientation consistency is ensured using the Moebius rule. The entire algorithm has been implemented in C on a UNIX system and experimental results are shown.