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A CSG-Based Interpretation of Three-View Drawings

Kittima MEKHABUNCHAKIJ, Tsuyoshi YAMAMOTO, Yoshinao AOKI

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Summary :

The use of the Constructive Solid Geometry (CSG) model has been considered in several computer-aided design systems for recent years, since its concept of powerful and multiple operations on basic object shapes to create more complex ones is intuitively easy to understand. Based on the CSG concept and a guiding principle of scene analysis, an algorithm for interpreting three-view drawings is described in this paper. In a certain process, the 3D interpretation works on local recognition to detect possible subparts of which orthographic patterns are defined in the 2D description of a part. In the subsequent process, which examines all possible solutions to the given drawing until finding one that meets some goal criteria, the combinatorial operators are applied to the possible subparts. Through those repeated processes, the final solution can be obtained in terms of consistent subparts in a CSG tree, including additional information about solids and cavities.

Publication
IEICE TRANSACTIONS on transactions Vol.E69-E No.12 pp.1354-1364
Publication Date
1986/12/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Computer Applications

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