Research Of Cad Graphics Automatic Judgment System Based On Network

With the development of science and technology, the technology of CAD obtains widespread application in various industries of national economy. It becomes necessary to carry out the corresponding CAD technical proficiency test for CAD technical personnel. The paper performs the Web-based CAD proficiency testing system research, designs the unified judgment interface between two-dimensional and three-dimensional graphics, uses VB program to automatically generate SAT file of the graphics, retrieve the graphics information in SAT file, complete the characters information exaction of 3D graphics and input databases, proposes the graphics judgment methods and the judgment standard regulation, and then through CAD graph size, position and color judgment, achieves the automation of CAD graphics judgment. Using Dreamweaver software and programming implement the functions of network information registration, logging in and results inquiry in CAD proficiency test system. Tests show that the judgment results are correct and the functions of the system are reliable. Realizing the automation and network of CAD proficiency test is of great significance and impact to improve the CAD testing technology level and efficiency.