| The construction of high-filled loess project has some engineering and technical challenges, such as excavation and backfilling of earth are both large, complex construction environment, variety of influence factors. According to this situation, this thesis presents a dynamic visualization method for high-filled project. By establishing the model of high-filled loess, comparative analysis and visual analysis, the dynamic simulation of high-filled loess project, visualization and analysis of dig-fill process and monitoring information is realized.The main works of this dissertation are as follows:1) The requirements of monitoring information visualization in high-filled loess project are analyzed, and the functions of monitoring information visualization are designed.2) A dynamic visualization method for high-filled project is proposed to visualize monitoring information at different periods. Dynamic terrain visualization is implemented by using interpolation algorithm, and 3D spatial analysis is implemented by using GIS component technology.3) The visualization of 3D monitoring information based on volume rendering is realized. Ray casting algorithm is improved to meet the requirement of monitoring information visualization of high-filled project, the experiment results show dynamic change process of monitoring information in construction process.4) Prototype system platform is designed to conduct experiments and analysis. The results show that this visualization method can directly and accurately display the construction process, help decision makers master construction information and process. |
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