Research On Virtual Assembly System For Education

This paper introduced and analyzed the present status of engineering graphics' teaching and CAI, and put forward the task about study and development on the assisted instructional system of virtual assemble combineing with the teaching experience of lots of teachers.The thesis studied the concept , characteristic, buildup, classify and the key technique deeply; Analyzed the developing actuality of virtual assembly; introduced the theory of Object Oriented and the concept and characteristics; Fond up the way of building and memory the assembly model. Based on this foundation, this thesis introduces the principle and method of carrying out every function module of the virtual assembly system:First, built up the virtual environment, analyzed the format of the 3DS document, carried out the transition of the 3DS document to the format of the virtual environment.Second, introduced how to achieve the mutuality of the user and the virtual environment.Third, carried out the function of collision inspect during the process of the assembly.The system adopted Windows XP operate system and the Visual C++6.0 to be the development environment of the sketch of OpenGL applies the procedure, built up the virtual assemble system of teaching, completed the modules of stablish of virtual environment, leading the assemble model, the alternation of customer and virtual environment and examination of colliding, and at last achieved the assembly of the models in the virtual environment.