Design And Implementation Of A Posture Symbol Plotting System Based On OpenGL

With the development of simulation technology,the development needs of plotting visualization of situation in the situation of the information system is being upgraded,there is an urgent need to establish a complete,fast and flexible,extensible plotting system,in order to adapt to the trend of information system in flexible complex plotting and display.The application of benchmarking drawing technique of multi parked in point and line based rendering phase,and no pattern of irregular(such as complex arrow etc.)for visual display,nor the formation of a strong extended type and strong portability of the drawing library.Because the symbol drawing does not form a system,it is difficult to achieve flexible use,scalability and migration requirements in practical applications.In this thesis,the relevant theories and methods of the establishment of symbolic system are studied and implemented.The use of graphic design method to design the symbol library,the system follows the modular design,low coupling,MVC(Model View Controller)architecture and other methods,while also taking into account the system cross platform,scalable,realized the situation symbol plotting system.According to the above requirements and methods,design the system structure of situation symbol marking system,including point symbol,line symbol(single arrow,arrow,area)design,based on the framework of QT(a language library)and interactive system,and display the scene control point calculation algorithm of three parts,including QT interactive system based on the verification platform to display and display the scene point symbol,line symbol drawing effect.