关键词: 整车坐标系；PolyWorks；车身点云；逆向对标

Abstract: In the process of vehicle reverse alignment, the construction of vehicle coordinate system of body point cloud is a very important step in vehicle reverse alignment, which is the foundation of digital model of vehicle data reverse design, it is also an important basis for the study of the structural characteristics of automobile parts. Based on an engineering example, this paper uses PolyWorks software to construct the corresponding module of coordinate system, which can quickly and accurately construct the whole vehicle coordinate system of body point cloud, and proves the validity of this method.

Key words: Vehicle coordinate system; PolyWorks; Body point cloud; Reverse alignment