Design And Research Of The 3D Model Library And Exhibition Platform Based On Web

Along with Web technology more application and development in the computer-aided design technology, network CAD technology has become one direction for the modern CAD technology. With the network CAD technology development and the enterprises' high requirement, intellectualization, efficiency, concurrency, integration and accuracy become the new trend of development for CAD technology. At the same time, with regard to enterprises' product chiefly belonging to the standard parts or the approximately standard part which can be obtained by deforming design, network technology become one effective method to solve the above question for enterprises in order to enhance the working efficiency, reduces the product life cycle. By the establishment of network part-base system, which stores the standard parts and enterprises' special parts and causes three-dimensional model base resources sharing in the whole enterprise, it becomes a hot spot of network CAD.At the present time, concurrent work becomes the development tendency for CAD technology: resource sharing between various enterprises. Concurrent design of some product by network, which can enhance enterprises' efficiency and market competitive power.After domestic and foreign development of present situation has been analyzed in this dissertation, one network three-dimensional part-base system and exhibition platform may be proposed and established, and the platform for users' exchange between them is built on this foundation, which is useful to share resources and the correlative users' collaborative work. Pro/ENGINEER is used to realize product modeling and ASP technology is taken for the website development environment. The data base technology and Web three-dimensional technology is used to set up one three-dimensional model base system and exhibition platform based on the Web. By the technical forum in the system, users can use this forum to propose suggestion about this system and exchange technical question between them. NetMeeting is taken for network video teleconference tool among users, where users can share part model, transmit document, use chat and so on to realize collaborative work.The dissertation explains the system design procedure and plan, and introduces in detail related technology used in the system research and design process. Under the system whole construction, the system design, structure, realization and the implantation aspect is separately introduced, and the database table design and system security is also explained. In this system, tree structure is used to demonstrate relationship and type between models, and through VRML three-dimensional effect of model is examined through three-dimensional browsing plug-in of VRML, and the related parameter of part may also be examined, and local model download can be realized. One collaborative work platform is built, where the collaborative work is realized by the supplied collaborative tool.