Abstract: Web virtual model library has a widespread use in the teaching of engineering drawing. Compared to VRML, X3D is a new generation of network programming language and has more mature standard. This paper introduces with emphasis the process and key technology of a web virtual model library developed by using X3D, and illustrates methods of building 3D model and making realization process virtual. Web virtual model library not only compensates the shortcoming of in-class teaching and study, but also is a good tool for distance learning.

Key words: engineering graphics, Web virtual model library, X3D, virtual reality