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:
Oct. 06, 1998
Filed:
May. 08, 1997
Robert D Covey, Alameda, CA (US);
Ching-Chi Billy Hsu, Alameda, CA (US);
Autodesk, Inc., San Rafael, CA (US);
Abstract
A method, apparatus, and article of manufacture for performing a polygon set operation on two or more polygons. A trace direction is determined based on the polygonal set operation, and an initial intersection point between first and second polygons is selected. The perimeter of either the first or second polygons is traced beginning from the selected intersection point and continuing in the determined trace direction. The trace switches between the perimeters of the first and second polygons as additional intersection points are reached during the tracing. The tracing is terminated when the selected intersection point is encountered by the tracing step. These steps are then repeated until all intersection points between the first and second polygons have been encountered.