Research On 3D Irregular Military Symbol And Terrain Matching Based On OSG

The current battle has evolved from the land into the space informational warfare. In order to make proper battlefield planning and command decisions in the way of visualization, combat situation demonstrating is always used before fighting to show the evolutive situation of battlefield. How to visualize the battlefield reasonably has become a hot topic in the current research field. The visualization of the combat situation includes 2D visualization and 3D visualization. Military symbol marking and scene matching are the key technologies to the visualization of the 3D combat situation.Based on the background of defense pre-research project, this dissertation includes the research and innovation on the key technologies of 3D military symbol real-time rendering, scene matching and trench dynamic military symbol generation. A combat situation demonstrating system is improved and designed and it has been applicated to 3D space situational awareness software system. Definite research work is below:1. The research on the marking algorithm of 3D irregular military symbol. This thesis provides an algorithm for arrow symbols marking based on certain control points. This method improves the plotting facility and editing flexibility of the irregular military symbol.2. The research on the irregular military symbol and terrain matching algorithm. A terrain matching method for irregular military symbols based on the simplification of control points is proposed in this paper. This method is suitable for situation elements that do not have to match the scene accurately. The method can accelerate the matching speed and effectiveness to some extents.3. The research on the generation algorithm of trench dynamic military symbol. By study and reference the dynamic terrain research, a method is proposed for the generation of the trench dynamic military based on the constrained Delaunay triangulation. Through the experiment on the generation of the trench military, the feasibility of this method is verified.4. The research on the architecture of the combat situation demonstrating system. Based on the practice of the project XXX battlefield situation modeling and simulation, the situation demonstring system architecture has been improved based on the battle simulation system. This improved architecture has been applicated to a 3D space situational awareness software system. This application has verified the feasibility of the improved architecture.