Apparatus and method for specifying windows with priority ordere

Details Apparatus and method for specifying windows with priority ordere Apparatus and method for specifying windows with priority ordere

1991-12-04

1993-06-01

Brier, Jeffery A.

Communications: electrical

Land vehicle alarms or indicators

Internal alarm or indicator responsive to a condition of the...

395164, G09G 514

Patent

active

052164136

ABSTRACT:
A method and a device for distinguishing which pixels are to be displayed in a set of overlapping, rectangular windows in video graphics display are provided. Windows are specified as a priority ordered list of rectangles or other shapes, so that each window is computed as being visible at those pixels that are inside its rectangle but outside the rectangles of all higher priority windows. The number of rectangles required is equal to the number of rectangular windows, irrespective of the degree of overlap.

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