面向三维模型检索的工程图映射算法研究.pdf

1 No. 1 2011 2 M ICROPROCESSORS Feb. , 2011 * 彭 俊, 张树生, 范海涛,石云飞 (西北工业大学 现代设计与集成制造技术教育部重点实验室, 西安 710072) : 针对目前基 内容的三维模型检索技术研究中, 未将面向制造工艺的工程图尺寸数据 融入三维模型检索, 提出一种方法分别对三维模型进行投影变化和对工程图进行三视图分离, 提取 相应数据, 然后对提取的数据利用已有的图形匹配方法进行匹配计算, 将工程图中的标注尺寸映射 到三维模型相应部位最后给出一个例子证明该方法是可行的 : 三维模型检索; 映射算法; 主元分析; 图形匹配 DOI: 10. 3969/j. issn. 1002- 2279. 2011. 01. 013 : TP391. 41 : : 1002- 2279( 2011) 01- 0045- 03 Research onM apping A lgorithm of Engineering Drawing Oriented 3D M odelRetrieval PENG Jun, ZH NG Shu- sheng, F N Hai- tao, SH IYun- fei (N orthw estern Polytechnical University, key L aboratory of Contemp orary D esign and integrated M anuf acturing echnology, Northwestern Polytechnical University, M inistry of Education, X ian 710072, Ch ina) Abstract: The existing Content- based 3D Model Retrieval Technology has not considered the dmi ension data of the engineering draw ingwhich is geared to theneeds themanufacturingprocess into it. This paper proposed a new method of projecting 3D model and separating three views draw ing from engineering draw ing respectively, extracting the corresponding data, then mapping the extracted dmi ension into the corresponding part of 3D model using existing draw ing m atching method. Finally the expermi ent shows that themethod is availablew ith a case. K ey words: 3D Model Retrieva;l Mapping lgorithm; PC ( Principle Component nalysis); GraphicsMatching 1 , 1997 1998, , (NationalResearch Council)Paquet ,,