Based On The Vrml Scene Of The Three-dimensional Terrain Roaming System Design And Implementation

Terrain visualization, particularly, the dynamic alternated terrain visualization, is one of the supported techniques of GIS. With the development of science and technology, especially the development of hardware and software technology of computer, the research personnel of surveying and mapping have already realize abundant, lifelike and real time wandering of 3 dimensional terrain visualization.The quick development of Internet makes the application of the ccomputer entering into a brand-new of stage, research workers of every trade all release their own research result on the Internet progressively, in order to be known and servee the person. How to realizee the real time alteration technology of 3 dimensional terrain visualization has already become a problem that need to be resolved urgently to research personnel of surveying and mapping.This text studied the use of VRML and Java technology to carry out the concrete method of real time wandering of the big scene on the Internet, and put forward more reasonable and effective resolving method combined the problem appeared in the process carry out and actual meaning in real life. First the article described the present condition of, and carried on contrast to various techniques of good and bad, get to the conclusion that the VRML has incomparable advantage in the current network technology of three dimensional aspect, then introduced the characteristic of VRML in detail and how to use Java to realize the integration of them. The article again begin to introduced some key technologies in how to design the system, how to organize and process data and the key technique that system needs in carrying establishment of the Internet of 3 dimensional terrain visualization. The author carried on the summary to that system and did the outlook of the work that is after in the end of the article.