Research Design Of Water Resources Geographic Information System

Water resources geographic information system is an application type of geographic information system,its technical means is the geographic information system,computer technology,through continuous expression,acquisition,storage,processing,analysis of various types of water information for water conservancy project management decision and water Information provided basis.According to the actual needs of the digital management,combined with the implementation of water resources information system,the system is described in detail by software engineering.Based on the brief introduction of the key technology,the key functions of the system are described in detail from the aspects of system requirements analysis,system design,system realization and system testing.The test results show that the response time reaches 0.75 seconds when the number of virtual users reaches 1000.It can be seen that the throughput reaches 1000 / 0.75 = 1333,which is far from the "system requirements".To meet the 1000 users at the same time visit the case,not crash;system response time can be within 5s "concurrent requirements.In this paper,the development of water digital geographic information system using SQL Sever 2005 as the system back-end database,the use of JSP technology development,selection of large-scale three-dimensional information platform EV-Globe as the basic platform,using Direct3 D rendering technology to render,System of comprehensiveness,versatility.