| Has a large number of water conservancy project construction in our country. So howto scientifically and efficiently manage so many water conservancy projects, in the eventof emergency at the same time how to set up a rapid, effective response to minimize losses,is one of the important subjects need to be addressed. This requires the development ofefficient water conservancy engineering3d geographic information management system,thereby visually and efficiently reflect the information of water conservancy projects, inorder to ensure the safe running of the water conservancy projectPaper first in liaoning province water conservancy engineering3d geographicinformation management system has carried on the demand analysis, has been clear aboutthe structure and function of the system; Secondly has carried on the overall design ofsystem, the overall structure USES the C/S and B/S combined, in the form of logicalarchitecture based on service mode of multi-tier architecture, network architecture is madeof multi-layer network C/S and B/S combined mode, function architecture includingthree-dimensional comprehensive display of hydraulic engineering, hydraulic engineeringquery3d,3d analysis of hydraulic engineering, hydraulic engineering data report outputsand system management five major modules; Then to sqlserver2008has established thesystem database, including basic geographic database, water conservancy project database,remote sensing image, topography and geomorphology, vector library database,3d modellibrary six basic library; At the same time the real-time collision detection technology andDirect3D technology used in the system, the selection and optimization and the relatedalgorithm; Finally the EV-Globe as a development platform, c#language to developsystem for the development, implementation system of water conservancy engineeringcomprehensive display,3d three-dimensional query, three dimensional data analysis,report output and system management, and other functions. System applications show thatthe system can be carried out on the water conservancy information management effectivereflection and monitoring, and can according to the different requirements in terms ofcomprehensive evaluation and prediction, so as to realize the scientific and effectivemanagement of water conservancy engineering information and emergency rapid responsein a timely manner. |