2009•Computer Technology and DevelopmentRequires access

An Algorithm for Circle Clipping Against Polygon Window

Sun Li-ping

Abstract

Circle clipping is applied widely computer graphics,such as two dimension computer animation and robot kinematics etc.Discusses a circle clipping algorithm against the polygon window in detail.The intersection points of the circle and each side of the clipping window are calculated and sorted correctly.Regarding two neighbor intersection points in sequence,the middle point detecting method is used to judge the position relations of circular arc and the clipping window.Finally,the whole clipping algorithm is gained.The result expresses that the algorithm is stable and efficient.

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Key concepts: Clipping (morphology), Computer science, Window (computing), Algorithm, Polygon (computer graphics), Point (geometry), Sequence (biology), Intersection (aeronautics)