According to the Complicated Spacial Surface such as the auto body panel, a routine about parametric grid generation is compiled.
针对汽车覆盖件这种复杂的三维曲面这一特例，编写了参数化网格划分的程序。
This dissertation focuses on the solid modeling of the Worm-Type Parts, such as the worm, worm wheel, indexing CAM, and so on, which has spacial surface.
本文以蜗杆、蜗轮及分度凸轮等具有空间曲面轮廓的蜗杆类零件为研究对象，探讨了该类零件的实体建模问题。
The whole feature parameters and local feature of spacial geometric features of road surface are put forward.
提出了表征路面表面空间几何特征的整体特征参数和局部特征参数。
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