Research On Parametric Modeling Of Airport 3D Virtual Scene

With the development and improvement of computer virtual reality and visual simulation technology, improving the fidelity of visual and visual effects technology in the flight simulator has been widely used. But, airport modeling based on the Multigen Creator and other 3D modeling software is increasingly obvious shortcomings: collecting the airport data manually, hand-painting airport topology. The Old modeling method is time-consuming,laborious, low efficiency, lack of flexibility and Reusability. Therefore, more rapid and convenient airport modeling method have great theoretical and practical significance of flight simulator.With the context of visual simulation in flight simulator to study the actual characteristics of the civil airport, the airport modeling based on parametric three-dimensional rapid prototyping method was proposed, constructed based on ICAO Annex 14 of the airport designing, and the characteristics of different regions for the airport proposed based on the parameters of the dependency graph feature extraction method, and apply the method to the runway and taxiway system.Designed and implemented a prototype system for the airport parametric modeling based on the parameter modeling theory, Designed module and system architecture of the prototype combined with OpenFligt data format and the airport parametric, The module has been divided around the airport, the extraction and transport Skeletons. Improvement of road network topology has been studied; Designed of the user input interface; reusability is not strong for OpenFlight API features, combining with the needs of the airport parametric model,implemented a new OpenFlight package for object-oriented; verified the parametric modeling of the speed and rigor of the advantages by test results.