汽车整车外形曲面逆向反求的研究

Study on Surface Reverse of Vehicle Shape

随着人们生活水平的日益提高,汽车数量的日益增长,人们已经不再是只满足于汽车的性能,对汽车的外形也提出很高的要求。介绍一种借助逆向重构软件快速从现有实体整车外形得到整车外形三维CAD模型的方法,并结合Geomagic以某型车车体外形的逆向重构为例说明车体外形逆向重构中点云数据的获得与处理、多边形结构以及NURBS曲面的生成等具体实现过程。

With the development of people＇s living standards and the growing number of cars, people do not just satisfy the performance of vehicle, but also have a very high demand for the shape. A method was presented that the 3D CAD model of vehicle was gotten from an existing entity shape in virtue of reverse reconstruction software. Combining Geomagic, taking the surface reverse reconstruction of some car shape as an example, the processes of the cloud data acquisition and process, generation of polygon structure and NURBS surface were described.