roller_radius = roller_diameter / 2. tooth_angle = (2 * M_PI) / num_teeth pitch_circle_diameter = pitch / sin(tooth_angle / 2.) pitch_circle_radius = pitch_circle ...

opencascade的c++版的入门教程(https://www.opencascade.com/doc/occt-7.2.0/overview/html/occt__tutorial.html#sec1)讲述基础知识 ...

Readers might be familiar with Open CASCADE, but for those who aren’t it’s an open source software development framework that “includes components for 3D surface and solid modeling, visualization, ...