改进的多边形物体精确自由变形  

Improved Accurate Free-Form Deformation of Polygonal Objects

作　　者：冯结青[1] 郭建民[1] 金小刚[1] 彭群生[1] 

机构地区：[1]浙江大学CAD&CG国家重点实验室,杭州310027

出　　处：《计算机学报》2003年第9期1137-1145,共9页Chinese Journal of Computers

基　　金：国家自然科学基金青年基金 ( 6990 3 0 0 8);创新研究群体科学基金( 60 0 2 12 0 1);国家"九七三"重点基础研究发展规划项目 ( 2 0 0 2CB3 12 10 1)资助

摘　　要：针对已有精确变形方法中的物体剖分和共面判断 ,提出了一种改进的精确自由变形方法 .实验结果表明 ,新方法具有鲁棒性和快速交互的特点 ,并且变形结果的表示形式与工业标准STEP一致 。Accuracy and interaction are important aspects in free-form deformation of polygonal object. However it is difficult to achieve real-time interaction by using previous accurate free-form deformation methods. In this paper, a new accurate free-form deformation method is proposed. It improves the efficiency of object subdivision and coplanar polygons determination. Experimental results show that the proposed method is robust and can achieve real-time interaction. Since the definition of the accurate deformation result is consistent with that in the industrial standard STEP, the proposed method can be integrated into current computer animation and geometric modeling systems easily.

关 键 词：多边形物体 自由变形 计算机动画 几何造型系统 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]