Two-Dimensional Boolean Graphics Operators
Original Publication Date: 1988-Sep-01
Included in the Prior Art Database: 2005-Feb-15
This article discloses a method for combining graphic shapes according to the Boolean operators Union, Intersection, or Exclusion. A primary goal of CAD (Computer Aided Design) technology is to facilitate the design process by allowing complex objects to be modeled in a straightforward manner. An approach to solving this problem is to allow objects to be expressed as combinations of basic shapes connected by Boolean-type graphics operators. The three basic Boolean graphics operators are Union, Intersection, and Exclusion. The Union of two shapes is a shape consisting of their combined areas. The Intersection of two shapes is a shape or shapes consisting of their common area. Both of these operators are commutative.