快速成形技术中基于STL模型的分层算法研究  

Research on Slicing Algorithm Based on STL Modal for Rapid Prototyping Technology

作　　者：赵吉宾[1] 刘伟军[1] 

机构地区：[1]中国科学院沈阳自动化研究所先进制造技术重点实验室,辽宁沈阳110016

出　　处：《应用基础与工程科学学报》2008年第2期224-233,共10页Journal of Basic Science and Engineering

基　　金：国家"863"计划资助项目(2001AA421160)

摘　　要：提出了一种基于STL模型新的分层算法.通过分析STL模型三角形面片之间的邻接关系,建立了有向图,采用递归分层方法实现了具有容错能力的快速分层.为了进一步提高算法的效率,对算法进行了改进,首先,利用所谓信息继承技术确定了每个截面轮廓第一个切割的三角面片;然后,根据每个轮廓环第一个切割的三角面片,直接确定了截面轮廓的正确走向.实验表明,该算法不仅能够高效实现STL模型的分层,而且运行稳定可靠.The paper presents a new slicing algorithm based on STL （Stereolithography） model. Through analyzing the topology relation of triangle facets of STL model, a directional graph of triangle facets is created, and then a rapid slicing with error-tolerance is obtained by a recursive algorithm. For improving the algorithm, the first hand is that the first triangle facets to be sliced in STL file is gained by a technology so called information inheriting, which effectively accelerated the slicing. And then, the right direction of the sectional contour is confirmed by the first triangle facet. Experiments show the algorithm not only effectively slicing the STL model but also steadily and reliably.

关 键 词：快速成形 STL模型 分层算法 有向图 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]