Satellite Circulation Simulation With OpenGL

Based on OpenGL, the circulation of satellite 3D visual simulation system plays an important role in the hydropower simulation center's research of space information science. Combining 3D graphics and space science, this system includes database, numerical value calculating, and modeling and simulation subjects. And, this system provides the 3D visual simulation of satellite and the platform of information management. So, this system has very important value in applications. Satellite 3D simulation is very popular at present, and it enhances the effect of visual information with the help of 3D graphical technology. It is said that the need of visual data analysis would be more than before. There are many kinds of languages and flats on OpenGL, such as stratum and the Vega for business flat in simulation. Each simulation technology has its advantage and disadvantage, so researches was needed on simulation technology much more.The research acquires the open satellite parameters to calculate the satellite' space position, relying on the 3D simulation ability of OpenGL, realizes the satellite 3D simulation. The key technology of OpenGL visual simulation was introduced particularly in this paper, together with giving a comparison on the format of the modeling and model files in 3D visual simulation. And then, the mathematic model of satellite circulating and the database fetch technology were discussed. The design and realization of 3D alternate simulate system, visual driving arithmetic and some simulate optimize strategy were introduced at last.In a word, this system researches 3D simulate technology which based on the under stratum; it accords with virtual realism; it provides viable resolving satellite space on time cruising and satellite position forecasting. And this system provides verisimilitude 3D space scene for space information science investigation simultaneously.