AutoCAD环境下基于零件图的三维造型方法

A 3D modeling method based on parts drawing of AutoCAD environment

对AutoCAD环境下根据零件图进行三维造型的方法进行了分析探讨。运用形体分析法将零件形体分解成可便捷地利用AutoCAD三维功能造型的体素。某一体素在视图上的投影往往即是其特征截面。将反映该特征截面的轮廓线经复制、编辑、生成面域等操作,再利用拉伸、旋转、放样等操作即可完成体素的三维造型。将各体素的三维模型经布尔运算进行组合,即可完成零件的造型。

In AutoCAD environment, 3D modeling method based on part drawing is analyzed and diseuased. Using the method of form analysis decomposed part＇s body into Voxel that is conveniently using AutoCAD 3D modeling function. One Voxel＇s projection in the view is often characteristic section of it. The contour lines of the eharactefistics cross-section produce it a region by copying and editing, then make the region into a 3D model by stretching, rotation, lofting and other operations. The part＇s model may be completed by combining the each model of the Voxel.