The Design And Realize Of Three-dimensional Digital Community System

The three-dimensional digital communities system is sub-system of "The Actual possession population And Actual possession houses system". The system is idea of "Housekeeping" guidelines to achieve. It has combined three-dimensional digital virtual simulation technology,3D animation technology, multimedia technology, GIS technology. Based on the FLASH3D graphics engine of Altemativa3D as front tier to show and take advantage of Java Persistence API access database as Distributed system architecture. Discussed in detail from the whole process of collected data of geographic information in order to generate3D Model to transform this information into the model file and use the3D engine load the render map. Take account of refer to user’s sensitive information, Ensuring the security of application data, system used digital certificates for OAuth authentication security frame to communicate the whole three-dimensional digital community information from the perspective of information security. We manipulate spatial database to manage three-dimensional model in order to guarantee store tremendous spatial data of building. This Article introduce whole process of establish the three-dimensional digital communities system by discuss to gather spatial data, manager spatial data and draw three-dimensional spaces, and created a flexible framework of build three-dimensional spaces. This framework can be reveal full view of District show, analyze composition of the population in this district, analyze Residential density in this district etc. according to different occasions and needs. It has not only display function but interoperate features and real-time information inquiry function use data source from database.Achieved main content and conclusion1. Brief introduce System architecture and Functional design.2. Discussed in detail from the whole process of collected data of geographic information in order to generate3D Model to transform this information into the model file and use the3D engine load the model file.3. Have set up a program to facilitate the secondary development of manager system. This program framework can freely change module’s position on the map base on modify geographical coordinates of configuration file by unchanging code.