Computer graphics processing and selective visual display system – Display driving control circuitry – Controlling the condition of display elements
Patent
1996-05-10
1999-06-29
Nguyen, Phu K.
Computer graphics processing and selective visual display system
Display driving control circuitry
Controlling the condition of display elements
G06F 1500
Patent
active
059174870
ABSTRACT:
Systems and methods for drawing objects on a display and, in particular, on a graphical user interface are described. Arbitrarily sized objects having straight sides and arbitrarily shaped corners can be drawn using one or more concentric rings which enclose an optional face. Each ring is specified as part of a data structure in terms of position, fill pattern and bits to be turned on. As a result, changes to the object's appearance attributes, such as, size, shape and color, can be made without requiring new program code.
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Apple Computer Inc.
Nguyen Phu K.
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