Photography can be a straight forward process, point and click, with no contact, the method of scanning works in a completely different way.
摄影可以是一个纯粹的过程，只要按下快门而无须任何接触，但扫瞄则是一种全然不同的方式。
2
This paper introduces a method for calculating the contactpoint, contact normal and penetration depth in collision detection of irregular objects expressed by triangle mesh.
介绍了一种针对用三角形网面表示的不规则物体的碰撞检测中接触点，接触法线和刺穿深度的计算方法。
3
Through alter the method on scraping contact surface between main spindle head and lathe frame, we may increase contact point and improve the contact rigidity.