UG 3D软件的Grip编程函数。分析曲面的法向。-Grip UG 3D software programming function. Analysis of surface area.

MxDraw软件，控件具有完全知识产权的二维图形显示，编辑控件。具有高效的显示速度，和非常相似于ARX编程接口的功能。-MxDraw software, controls have full intellectual property rights of the two-dimensional graphics display, edit controls. The efficient display speed, and very similar to the function of ARX