Distributed computing,produced with the development of computer technology,the network technology and more and more computing needs.The good repetitious scattering applicability is the strongpoint of the forward ray tracing.But it needs large amount of computation.So it needs to speed up the algorithm.This article discusses how to use.NET enterprise-class distributed systems architecture and the c # language,which has a great advantage in network programming,multi-threaded technology and Socket to develop the Distributed Computing Platform used to improve the speed of forward ray tracing.

In this paper,we discussed the new generation of Geodatabase model,the structure of the database and forms of data organization,implementation of the object-oriented spatial database design,achievement of spatial database access and management through the common relational database system adding middleware of ArcSDE.