Using OpenSceneGraph to simulate the dynamic flooding effect

This paper is based on OSG and osgOcean which realized the function of dynamic flooding effect. OsgOcean is a functional module which realized based on OSG and is a part of VENUS plan. Based on this functional module this paper simulated the dynamic flooding effect. China is a country which occurs more frequently floods. At the end of the last century, the Yangtze, Nenjiang, Songhua River floods have occurred to cause a significant loss of the national economy. To effectively prevent flooding, ensure the people´s lives and property, in addition to strengthen embankments, flood diversion, storage areas, the use of 3D visualization technology to express all kinds of information, the mathematical model and the flow combination of analysis in the flood is an urgent problem to resolve. Flood routing simulation is important part and powerful analytical tool in the drainage basin of flood control and disaster mitigation fields. Simulation flooding disaster is an important part for smart city. Smart city could predict the disaster. And visualization of the disaster is an important component for the smart city.