Boots – shoes – and leggings
Patent
1987-05-08
1989-08-08
Clark, David L.
Boots, shoes, and leggings
340728, 340739, G06F 1572
Patent
active
048559350
ABSTRACT:
An adaptive forward differencing apparatus wherein, when rendering curves, calculated x, y values are increased or decreased in order to create values which correspond to the next pixel of the display CRT, such that curves of substantially one pixel increments are continuously and uniformly generated. The apparatus of the present invention also provides circuitry for generating coordinates of display elements which approximate an ideal vector and to define curves, vectors or objects within maximum and minimum coordinates of the CRT display. The present invention also provides efficient circuitry for computing the value of 1/w of the homogenous coordinate w.
REFERENCES:
patent: 4386349 (1983-05-01), Granberg et al.
patent: 4586037 (1986-04-01), Rosener et al.
patent: 4648049 (1987-03-01), Dines et al.
patent: 4660028 (1987-04-01), Yu
patent: 4736330 (1988-04-01), Capowski
patent: 4745575 (1988-05-01), Hawes
Carrie Susan E.
Ergene Serdar
Evans Jerald R.
Lien Sheue-Ling
Shantz Michael J.
Clark David L.
Lacasse Randy W.
Sun Microsystems Inc.
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