中性文件STEP格式消冗算法程序的实现  

The STEP neutral file formats eliminate redundant of algorithm to achieve

作　　者：谢大冰[1] 蔡勇[1] 

机构地区：[1]西南科技大学制造学院,四川绵阳621010

出　　处：《机械》2009年第10期4-6,共3页Machinery

基　　金：国家自然科学基金项目(10576027)

摘　　要：在STEP文件中,实体的几何信息描述是从几何点开始的。通过对诸多STEP文件分析归纳发现,每获取同一个笛卡尔点要素或方向要素时,STEP文件都会对该要素进行一次重复定义,且出现偏差值。几何实体越复杂,笛卡尔点要素和方向要素的基数就越大,因而出现的偏差值就越多,出现冗余。基于减小文件大小、提高点精度的想法,提出了消冗算法。In the file of STEL ,geometrical information begin with geometrical point. Through the analysis of several STEL file, as we know, we get the Elements of Cartesian points or direction every time, the file have to repeat their definition, and come out amount of deviation. So the more complex the geometrical entity is, the bigger the base of the elements of Cartesian points and direction is, and more amount of deviation came out. Based on the reduced file size and improve the accuracy of the idea of points, in this paper we take about eliminate redundant algorithm.

关 键 词：STLE 消冗 中性文件 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]