| 自适应细分曲面算法及在快速成型 |
| |
| 引用本文： | 温佩芝,吴晓军,吴成柯,刘伟军. 自适应细分曲面算法及在快速成型[J]. 计算机集成制造系统, 2007, 13(3): 608-613,620 |
| |
| 作者姓名： | 温佩芝 吴晓军 吴成柯 刘伟军 |
| |
| 作者单位： | 桂林电子工业学院,计算机系,广西,桂林,541004;西安电子科技大学,通信工程学院,陕西,西安,710071;哈尔滨工业大学,深圳研究生院自动控制与机电工程学科部,广东,深圳,518055;西安电子科技大学,通信工程学院,陕西,西安,710071;中国科学院,沈阳自动化研究所二室,辽宁,沈阳,110016 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划) |
| |
| 摘 要： | 为提高快速成型制造中STL模型切片轮廓的光滑性,提出了一种基于Loop模式的自适应曲面细分算法,首先分割出网格模型中的曲面和平面,对和尖锐边相邻的曲面三角面设计了特殊的细分规则.通过三角面顶点的平坦度和容差平坦度决定三角面是否做进一步细分,以达到自适应细分的目的.该算法在保留零件模型上尖锐特征的同时,提高了模型上曲面部分的光顺性,从而可以利用模型的全局信息获得光滑的2维切片数据.
|
| 关 键 词： | Loop细分曲面 自适细分应曲面 模型切片 快速成型制造 |
| 文章编号： | 1006-5911（2007）03-0608-06 |
| 收稿时间： | 2006-01-13 |
| 修稿时间： | 2006-01-132006-03-20 |
Self-adaptive surface subdivision and its application in data processing of RPM |
| |
| WEN Pei-Zhi,WU Xiao-Jun,WU Cheng-Ke,LIU Wei-Jun. Self-adaptive surface subdivision and its application in data processing of RPM[J]. Computer Integrated Manufacturing Systems, 2007, 13(3): 608-613,620 |
| |
| Authors: | WEN Pei-Zhi WU Xiao-Jun WU Cheng-Ke LIU Wei-Jun |
| |
| Abstract: | In order to improve the smoothness of slice contours of a STL model in Rapid Prototyping Manufacturing(RPM),an algorithm of self-adaptive surface subdivision was proposed based on the Loop mode.Firstly,a mesh model was segmented into planar part and surface part,and new subdivision schemes were designed for the facets on the surface part connecting to the sharp edges.During this procedure,the flatness and tolerance flatness of a vertex were employed to determine whether this facet should be further subdivided to achieve self-adaptive subdivision.Finally,smoothness of the surface part was enhanced,while the sharp features were maintained.Thus,the smooth slice contours could be obtained from global information. |
| |
| Keywords: | Loop subdivision surface self-adaptive subdivision surface model slice rapid prototyping manufacturing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
