CAJ | 학술논문

为消除最大偏置距离对变距偏置曲线的限制,拓展变距偏置曲线在CAD/CAM中的应用范围,给出了非正则变距偏置曲线中自交点探索和去除算法。算法应用基曲线的法线扫描变距偏置曲线,采用曲线上的点为圆心、偏置距离为半径的圆限制法线的长度范围。该算法可探测并去除非正则变距偏置曲线中的自交区域,实例验证了该算法的有效性。
위소제최대편치거리대변거편치곡선적한제,탁전변거편치곡선재CAD/CAM중적응용범위,급출료비정칙변거편치곡선중자교점탐색화거제산법。산법응용기곡선적법선소묘변거편치곡선,채용곡선상적점위원심、편치거리위반경적원한제법선적장도범위。해산법가탐측병거제비정칙변거편치곡선중적자교구역,실례험증료해산법적유효성。
Aimed at removing the limit of the maximal offset radius on the variable radius offset curve and expand the application scope of the variable radius offset curve in CAD/CAM,this paper presents the algorithm designed for detecting and trimming self-intersections in the variable radius offset.The algorithm consists of applying the normal to sweep the curve and confining the extent of normal by the circle with center on the curve and radius equal offset radius.The algorithm is capable of detecting and trimming self-intersections in the variable radius offset.Results prove the effectiveness of the proposed algorithm.