Based on long-time research on vocational teaching cube theory in graphics education and analyzing on the intellectual structure in the process of reading engin
A brief historical introduction of researches on perspective in ancient China is presented,this paper studied and discussed the perspective theory or Zong Bing
According to the requirements of designing V-groove pulley transmission, an application development based on AutoCAD environment and using AutoLISP language is
The algorithm is divided into two steps. The first step pre-locates the blank by aligning its centre of gravity and approximate normal vector with those of dest