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《Journal of Engineering Graphics》 2007-04
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Free-Form Surface Geometric Information Extraction System

MAO Xin,MAO Pu-yuan,SUN Jing(School of Mechanical Engineering and Automation,Northeast University,Shenyang Liaoning 110004,China)  
Based on the analysis of the present CAD software,a new method is presented to extract the information of free-form surface.By using the extracted information the contours of curvature can be drawn easily and quickly,and the precision and influencing factor in this method are researched and some conclusions are got.These functions are implemented by further development on UG,and it is not necessary to do more calculation.The applied value can be presented in the evaluation of the fairness of reconstructed surfaces and the selection of tool radius in the product manufacturing,and so on.
【CateGory Index】: TP391.7
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