"engineering Graphics" Cai Design Theory And Technology Research

With the application and development on modern educational technology, education has been infused vitality and will be aroused profound changes. Network, inter-national , virtual , popular, widespread , independent, and various is educational developing direction. Computer Assisted Instruction is the main contents of educational technique modernization and the main means of educational reformation. With the development of computer graphics and related technique, graphics education becomes more and more important. In the engineering realm, the teaching content and teaching method of engineering graphics is changing. The teaching means and study mode of engineering graphics has be improved by the development of modern educational technology and application of multi-media and network.The key of graphics teaching by computer is the design of courseware. An outstanding courseware consists of three foundational and essential components: content, technology and aesthetics. This paper introduces and analyzes the present status of engineering graphics teaching and CAI, puts forward the task about the design theories and technology study on CAI. Then, this paper studies deeply the concept, characteristics and application of Virtual Reality and Virtual Reality Modeling Language. It also studies the relationship of engineering graphics, esthetics and esthetics education, the modeling technology of VRML, the interactive technology of animation, the bilingual educational theory and its multimedia realization. Finally, the CAI system is designed and developed, which is guided by theory and technology.Based on engineering graphics and directed by esthetics theory and integrating the popular software, this paper applies Virtual Reality and solve the problem that interaction of two-dimensions and three-dimensions, the application of bilingual education in CAI. The paper explains the details of the technology realization difficulty on CAI. The realization technology proposed by this paper is easily practicality, strongly interaction, vividly lifelikeness and makes CAI more humanistic. This paper is a beneficial research and attempt to the education of engineering graphics.