Computer Engineering and Applications ›› 2009, Vol. 45 ›› Issue (15): 202-205.DOI: 10.3778/j.issn.1002-8331.2009.15.059

• 图形、图像、模式识别 • Previous Articles     Next Articles

Improved subdivision over arbitrary topological meshes

JIA Tai-feng,GU Yao-lin   

  1. School of Information Engineering,Jiangnan University,Wuxi,Jiangsu 214122,China
  • Received:2008-03-31 Revised:2008-06-17 Online:2009-05-21 Published:2009-05-21
  • Contact: JIA Tai-feng

任意拓扑网的细分改进

贾太峰,顾耀林   

  1. 江南大学 信息工程学院,江苏 无锡 214122
  • 通讯作者: 贾太峰

Abstract: The shape of the subdivision surface and the final object model are determined by the initial control mesh given when improving arbitrary topological meshes to construct smooth meshes,it’s unadjustable.So,control parameters and perturbation is presented during the mesh subdivision.Because of the parameter,the subdivision over arbitrary topological meshes is under control by changing the parameter.Kinds of subdivision surfaces can be created.The shape of the meshes can be locally adjusted using perturbation which is developed to modify the spatial positions some examples of the subdivision surfaces given demonstrate the simpleness,flexibility and efficiency of the algorithm.

摘要: 在改进任意拓扑网构造光滑表面时,初始控制网格确定的情况下,生成的曲面形状惟一确定,最终的物体造型也随之确定,不具有可调性,因而在曲面细分过程中引入了控制参数和摄动。通过引入控制参数,调节一个参数值,使得所得的细分曲面的表达度可控,可以得到一系列的细分曲面。引入摄动是为了改进了空间位置,允许局部地调控约束曲面的形状。最后给出了曲面设计的实例,表明这种算法简单、有效。