QUADRATIC APPROXIMATE OFFSET CURVES FOR QUADRATIC CURVE SEGMENTS

摘要

A system is described herein that produces at least one approximate offset curve that is separated by an original curve segment S_o by at least a distance d, thus defining a bounding region between the original curve segment S_o and the approximate offset curve. The original curve segment S_o and the approximate offset curve both have a quadratic form. In view of this quadratic form, the system can represent the approximate offset curve in an efficient manner (e.g., using three control points). Further, the system can perform calculations with respect to the approximate offset curve in an efficient manner.