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Eliminating Redundant Components While Building Solid Models by Surface Points Evaluation

Chun YANG, Shan Jun ZHANG, Toshio KAWASHIMA, Yoshinao AOKI

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Summary :

Existing solid models often contain redundant primitives and null blocks, which both slows down the rendering process and makes the process complex. There has been recent progress toward solving this problem, but existing modeling schemes cannot support eliminating all the redundancies, especially the null blocks, from the solid models. This paper proposed a technique that can eliminate redundancies. By dividing a primitive into some surface dispersed points, a new primitive representation is obtained. The sample segments of the primitive or the object are used to locate composition position to prevent the null primitives from being generated. By drawing out the geometric shape points set corresponding to a common acting area, the volume boundary of a primitive or an object is evaluated by only the Boolean set operations. The null blocks can be picked out in terms of the volume boundary. The resulting solid model generated in this way has no redundancies and is suitable for fast rendering of the image.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E75-A No.11 pp.1561-1569
Publication Date
1992/11/25
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Computer Aided Design (CAD)

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