Patent ID: 6229518
Filing Date: 2001-05-08
Classification: G09G

Abstract:
An apparatus for controlling a cursor, comprising:means for determining whether a graphics element has a predetermined spatial relationship to a cursor area, the means for determining comprisingmeans for defining the cursor area with a first rectangle,means for forming a second rectangle based on the graphics element,means for discerning whether the first and second rectangles overlap and, if so, discerning the overlapping region,means for discerning the orientation of the graphics element, andmeans for discerning whether the graphics element overlaps the first rectangle by comparing at least one vertex of the overlapping region with a mathematical representation of the graphics element;means for writing the graphics element without turning the cursor off if the graphics element does not overlap the first rectangle, as determined by the determining means; andmeans for turning the cursor off when writing the graphics element if the graphics element overlaps the first rectangle, as determined by the determining means.