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1、VRML in Distant Education1专业英语论文机电与信息工程学院班班 级级：通信：通信 2 班班学学 号：号：200800800272姓姓 名：王超名：王超VRML in Distant Education2VRML in Distant EducationAbstractVRML is mainly to help realize the three-dimensional animation effect, and solve User interaction problem based on the three dimensional object in the hom
2、epage. VRML can provide the three dimensional virtual scene which allows the user to participate in and to control interactively, and improves the insufficiency of network courseware which only has the static picture and the traditional three-dimensional animation that makes interactive control in t
3、he distance learning impossible. The paper describes the methods to create three-dimensional scene using VRML technology and to achieve real-time interactive features of scenes with an application example, and it gives a key part of code.Keywords: Virtual reality, Distance vocational education, Thre
4、e-dimensional modeling, Human-computer，interaction1. IntroductionThe distance education takes an independent education shape. It originated from the 19th century 40correspondence educations. In the 20th century 70 抯, many kinds of media distance education developed rapidly.For the first time, it dre
5、w the wide attention from the world education domain. It was considered as a significant revolution in human history of education. By the end of 20 century, the information technology application domain. It was considered as a significant revolution in human history of education. By the end of 20 ce
6、ntury,the information technology application had opened the modern distance learning prologue. With the information technology powerful support, the modern distance learning has the unprecedented compatibility and the flexibility. And the governments of various countries realize that modern distance
7、 learning becomes the first choice of lifelong education. Compared with the first generation of correspondence education and the second generation of many kinds of media distance learning, the modern distance learning has already developed from the edge pattern of education to the mainstream pattern
8、. The modern distance learning no longer takes only one kind of substitution of the education form which provides remediation of study for the people who missed the opportunity for accepting high education, it also becomes a kind of representation form of the development direction for the future edu
9、cation. It has been eagerly anticipating the through revolution for the various countrieseducation fields. The main form of the modern distance education is the online education. Because of its unique advantage, online education will become the first-selected form of lifetime study. Online education
10、 can make more people,especially those unable to enter the college campus to accept advanced education. The distance education has already become a kind of major form of education. In essential, the virtual reality is one kind of advanced computer connection technology. By various technologies,it ma
11、kes things in the real world and those originally not existing in real world such as hearing, touch, taste,smell, and etc., all work together coordinately. And it can VRML in Distant Education3provide interact between users and the environment to make the users realize that they seem to be personall
12、y in a real world. Virtual reality technology has the superiority that can be compared in the modern distance education. It can make up for the insufficiency of long-distance teaching condition, avoid all kinds of dangers which may happen in the real testing operation, break both the time and space
13、limit thoroughly, and depict character image. Now more and more long-range educational institutions have already realized the importance of virtual reality and have done relevant discussions. Some schools have set up the system of fictitious campus among them. As VRML becomes the new standard of the
14、 network 3D, and is constantly improved, constructing the modern long-range education system based on VRML has already become the important subject. This paper introduces VRML relevant technology and the designed system based on modern distance education of VRML.2. VRML OverviewVirtual Reality Model
15、ing Language (VRML) is one of the main recent developments in web three-dimensional technologies (VRML Consortium. 1997). It provides a modular infrastructure for rapid development of web-ready virtual worlds that can run as platform independent applications in any web browser with an appropriate pl
16、ug-in. VRML is a “file format for describing interactive three-dimensional multimedia on the Internet”(VRML Consortium. 1997) which allows computer users to visit and move through three-dimensional virtual environments over the Internet. As a description language for three- dimensional models and their behavior, VRML is very well suited for the development of Web- based simulations and animations. First, VRML is an international standard and all
