The Research And Realization Of 3D Large Scale Complex Electromagnetism Visualization

With the rapid development of electromagnetism, every field is using electromagnetic equipments widely. Electromagnetism is a kind of power field. Its radiation wave length is beyond the visible light of human beings. However, with entering deeply into every area of society, the easy calculation and visualization of electromagnetism is becoming more and more concerned. But in China, there still haven’t been a complete EM(electromagnetism simulator) to help people calculate and simulate these various electromagnetism. To solve this problem, we propose a solution of visualization for some regular kinds of electromagnetism.1. Using Radar equation to calculate the detect region of Buoy Radar and simplify the parameters of equation based on the demands of visualization. Depends on this, we also provide a mix step sample method which includes the equal step sampling and different step sampling. Combining the terrain precision and sample method, we propose a LOD accelerated rendering strategy. For the usage of the parallel computation ability of GPU, propose a method to set the computation task of the Radar attenuation into Vertex Shader. Finally, integrate all this into a module of electromagnetism manager. Provide the interface for users to adjust the parameter and get the visual result.2. Using ITM model to realize the visualization of the large scale telecommunicate electromagnetism. Make a detailed deduction of the model. Analyze the input, out put, attenuation calculation and variables of the ITM. Abbreviate the complex equation into polynomial equation based on experimental data and numerical approach. Applying Marching Cubes to extract the contour surface of the density function made by ITM and designing the specific procedure. Provide a proposal to set the computation into Geometry Shader.3. Applying Cubic Map, Bezier Curve, Generalized Cylinder and Billboard to realize the visualization of all direction radar, generated radar, hemisphere scan radar, general san radar and defense radar. Gathering them independently into radar manager modules. Also design the rendering methods of general communication link, 01 coded communication link, transfer link and optical fiber link. Construct the communication link manager based on these links.4. Based on the algorithm and technology, I finished a electromagnetism manager. It has two parts: the radar manager and communication link manager. Radar Manager integrate the 6 kinds of Radar, and package the shape parameters and dynamic function for every radar. User could adjust them friendly. Construct a Link Net module on Communication Manager. Through this, designer could design the communication net work depending on some patterns or scripts and get the feedback as soon as possible.