Development And Design Of The Mechanism Of Interactive Tightly Coupled Network Teaching And Virtual Model Library

With the advent of acknowledge economic and information era, traditionaleducation model and ways are being changed. Distance education based on Internetemerges as a new thing.Accounting to the characteristics of the Engineering Graphics course, this paperdevelops a set of network teaching system NBITCIS of Engineering Graphics based onB/S. This system is composed of five parts, such as teaching, practice, Questions &Answers, virtual model and distance education resource. This system adopts three layersof structures, that is displaying layer, business layer and data layer, the displaying layer ismade of ASP, users and system can operate in turn; the business layer is composed ofCOM coming from VB, it can connect with database to read, save, modify and deletedata; data layer use the technique of SQL Server 2000.The features of the system are engineering graphics network virtual modelstorehouse and Virtual Education Environment. And the key technique of the systemintegrates VRML, Fireworks, AutoCAD and 3D MAX software. At last, the system isrealized by using of scene notes of Transform, Scale, Inline and four sorts of sensors. It isquick, accurate, and agile to build model, and it makes one feel real in virtualenvironment.