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ABSTRACT
The algorithm presented causes the elimination of hidden lines in the representation of a perspective view of concave and convex plane-faced objects on the picture plane. All the edges of the objects are considered sequentially, and all planes which hide every point of an edge are found.
The computing time increases roughly as the square of the number of edges. The algorithm takes advantage of a reduced number of concave points and automatically recognizes if only one object with no concave points is considered. In this last case, the result is obtained in a much simpler way.
REFERENCES
Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.
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ROBERTS, L. G. Machine perceptions of three-dimensional solids. Ph.D. Th., Elec. Eng. Dept., MIT, Cambridge, Mass., Feb. 1963.
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LOUTREL, F. Determination of hidden edges in polyhedral figures: convex case. Tech. Rep. 400-145, Lab. for Electroscience Res., New York U., New York, Sept. 1966.
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LOUTREL, P. A solution to the "hidden line" problem for computer-drawn polyhedra. Tech. Rep. 400-167, New York U., New York, Sept. 1967.
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WYLIE, C., ROMNEY, G., EVANS, D. C., AND ERDAHL, A. Halftone perspective drawing by computer. Tech. Rep. 4-2, Comput. Sci., U. of Utah, Salt Lake City, Utah, Feb. 1968.
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DE LOTTO, I., AND GALIMBERTI, R. Innovative design with computer graphics. A lta Frequenza 5 (1967), 430.
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KORN, G. A., AND KORN, T. M. Mathematical Handbook for Scientists and Engineers. McGraw-Hill, New York, 1961.
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CITED BY 17
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Ivan E. Sutherland , Robert F. Sproull , Robert A. Schumacker, Sorting and the hidden-surface problem, Proceedings of the June 4-8, 1973, national computer conference and exposition, June 04-08, 1973, New York, New York
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INDEX TERMS
Primary Classification:
I.
Computing Methodologies
I.3
COMPUTER GRAPHICS
I.3.7
Three-Dimensional Graphics and Realism
Subjects:
Hidden line/surface removal
Additional Classification:
I.
Computing Methodologies
I.3
COMPUTER GRAPHICS
General Terms:
Algorithms,
Design,
Theory
Keywords:
automatic drawing,
back line recognition,
computer graphics,
computer-aided design,
displaying techniques,
hidden line elimination,
machine rendering of solids,
man/machine communication,
man/machine interaction,
perspective view,
plane-faced objects,
three-dimensional representation
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