Communications: electrical – Land vehicle alarms or indicators – Internal alarm or indicator responsive to a condition of the...
Patent
1987-06-19
1990-06-05
Moore, David K.
Communications: electrical
Land vehicle alarms or indicators
Internal alarm or indicator responsive to a condition of the...
340744, 340747, G09G 106
Patent
active
049317849
ABSTRACT:
A line segment display is generated as two peripheral sections joined by a middle section. The middle section is generated as a series of bars of pixels, so that no pixel falls in more than one bar, and so that a calculation to determine whether or not a pixel is within or outside the line segment is carried out only once for each pixel.
REFERENCES:
patent: 4626838 (1986-12-01), Tsujioka et al.
patent: 4633416 (1986-12-01), Walker
patent: 4646076 (1987-02-01), Wiedenman
patent: 4796020 (1989-01-01), Budrikis et al.
IBM Tech. Disc. Bul., vol. 21, No. 3, Aug. 1978 "Automatic Filling of Bounded Areas In a Raster Display", A. Appel and C. J. Evangelisti.
Computer Graphics, Hearn et al., pp. 91-92 (Prentice-Hall 1986).
Fundamentals of Interactive Computer Graphics, Foley et al., pp. 436-437 (Addison-Wesley 1982).
Procedural Elements For Computer Graphics, Rogers, pp. 94-97 (McGraw-Hill 1985).
Hjerpe Richard
Moore David K.
Rank Cintel Limited
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