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An algorithm for hidden line elimination
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Communications of the ACM archive
Volume 12 ,  Issue 4  (April 1969) table of contents
Pages: 206 - 211  
Year of Publication: 1969
ISSN:0001-0782
Author
R. Galimberti  Istituto di Elettrotecnica e di Elettronica, Politecnico di Milano, Italy
Publisher
ACM  New York, NY, USA
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Downloads (6 Weeks): 5,   Downloads (12 Months): 49,   Citation Count: 17
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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.

 
1
ROBERTS, L. G. Machine perceptions of three-dimensional solids. Ph.D. Th., Elec. Eng. Dept., MIT, Cambridge, Mass., Feb. 1963.
 
2
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.
 
3
LOUTREL, P. A solution to the "hidden line" problem for computer-drawn polyhedra. Tech. Rep. 400-167, New York U., New York, Sept. 1967.
4
 
5
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.
 
6
DE LOTTO, I., AND GALIMBERTI, R. Innovative design with computer graphics. A lta Frequenza 5 (1967), 430.
 
7
KORN, G. A., AND KORN, T. M. Mathematical Handbook for Scientists and Engineers. McGraw-Hill, New York, 1961.

CITED BY  17