鞋楦CAD中的鞋楦建模与局部修改技术

Local Deformation Technique in Shoe Last Modeling

讨论了 CAD中的鞋楦建模方法 ,针对鞋楦曲面的不规则性 ,提出一种离散造型方法并给出一种计算鞋楦围度的逼近算法 ;同时 ,提出一个斜率定义 ,进而给出一个比较实用的基于斜率变化的自适应楦面局部修改算法 (简称 SAD算法 ) ;

Methods of shoe last modeling are discussed. Because of the irregularity of shoe last shape, this paper puts forward a discrete modeling method and gives an approximation algorithm for calculating shoe last girth. Our own definition of slope is given and a local slope based adaptive deformation algorithm of shoe last is developed. An actual application example and the modeling results are analyzed.