The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2001
Filed:
Oct. 08, 1997
Hiroki Takita, Tokyo, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
For a polygon without self-intersection, with one of line segments constituting the outline of the polygon selected sequentially in the counterclockwise rotation, all the bits in the right direction of the selected line segment on the horizontal coordinate, inclusive of those for the selected line segment, on the plane work area (1 bit/pixel) of the work memory are inverted to draw (Step S,). Subsequently, only some of the line segments constituting the outline of the polygon whose vectors are in the upward direction (which makes an upward vertical-coordinate variation) are further drawn on the work memory (,A) (Step S,). Finally, the drawing information is transferred with extension from the work memory to the display memory (Step S,). Having the above steps, a method for achieving proper filling of a polygon with a decrease in load on a processor is provided.