面向逆向工程的曲面再设计系统与接口技术  

Redesigning of Surface and Interface Technology for Reverse Engineering

作　　者：刘峥[1] 孙波[1] 

机构地区：[1]西安工业大学机电工程学院,西安710021

出　　处：《西安工业大学学报》2013年第6期463-469,共7页Journal of Xi’an Technological University

基　　金：陕西省科学技术研究发展计划项目(2011K07-11);陕西省教育厅科研计划项目资助(11JK0864)

摘　　要：在逆向工程研究领域,由于专业性和自主版权的要求,针对坐标测量机开发曲面评测、设计系统一直是难点之一.文中基于OpenGL技术自底层构建三维曲面重构以及再设计系统,为自主版权的逆向设计系统研究做出了探索.首先,实现点阵数据的读取以及基于双三次B样条曲面的模型重构,进而完成基于控制点调控的曲面再设计.其次,运用造型API构建了三维模型操作与场景控制系统,方便设计人员交互.最后,开发出基于STEP格式的自由曲面接口模块,实现了系统与商用CAD系统的衔接.与传统的二次开发模式相比,采取自底层开发三维设计系统的方法可扩展性好、灵活性强、具有自主版权.In the area of reverse engineering, the development of the surface evaluating and designing system for the coordinate measuring machine is always one of the key points because of the requirement of specialization and property right. The 3D system for reconstructing and redesigning surface was constructed based on OpenGL technology, which made contribution for the development of reverse designing system with independent property right. Above all, the data of point lattice was read to reconstruct the uniform bicubic B--spline fitted surface. The surface was redesigned based on the revising strategy of the control points. Furthermore, the 3D environment for the operations of models and scene were developed with the modeling API, which benefits the interface between the designer and the system. Finally, the linkage was built between the system and the popular commercial CAD systems with the developed interface module based on STEP standard. The development of 3D design system with OpenGL technology has complete property right and better flexibility, expansibility than the method of secondary development.

关 键 词：曲面重构 样条曲面 开放式图形接口 数据交换标准 曲面再设计 

分 类 号：TP391.7[自动化与计算机技术—计算机应用技术]