Design And Implementation Of A Flight Simulator Visual Simulation Subsystem

In recent years, computer performance greatly improved, image technolog yandgraphics renderingtechnologies and otherrelated technologydevelopmentland scapeis getting better and bettre, virtual realitytechnology hasgraduallybecome amodernmodeling techniques andsimulation technologykey,Virtualrealitysimulatio n processvisual systemisthe main workmodeling,viewpoint controlofrealandvirtu al objecthandlehigh-performancecomputing,itplays a keyrole in thevisual system,the virtual realitytechnology is mainly usedinflight simulators, flight simulato r it is not a separate entity, it consists of several subsystems, according to th e degree of importance can be divided into: the first is the equivalent of "br ain central nervous system" flight simulation systems and master control syste m; the second category are the visual system and teachers console system, be cause of the human vision is the most intuitive feeling; third category is the sound system, in addition to visual hearing is most sensitive nerve; the last c ategory is the task of simulation systems and surveillance systems. Thes e sub systems make flight simulators on the ground can construct a virtual flight en vironment, in this way to train pilots become both economical and safe whileon flight simulators theories and research also plays an important.The mainworkof this paper as follows: Firstly, the flight simulator visual simulation subsystem significance and background, and it related research status at home and on abroad; secondly, research related to this system technology, next to the structure of the system, functionality of the system to make detailed design; according to the needs of each module completed visual subsystem, through the characteristics of the composition and management control principles detailed visual description of the subsystem, multifaceted visual simulation module describes the focus how to design and subsystem achieved. Visual analog subsystem is divided into five parts: the establishment of a three-dimensional model of the module, real-time visual database driver module, flight simulation program mod ules, collision detection module, observe the scene module. The system uses object-oriented technology, constructed under the Windows platform applications. It has a good man-machine interface and a standard interface specification, and determines the development of this program is based on Visual C ++ 6.0 compiler as a platform to develop code, while providing a plurality of API functions Open GVS extension development kit. Finally, the main use of black box testing method for function point of each module to be tested, the use of performance analysis table system performance analysis to ensure that the system can meet the standards required by the user.