Application of Three-Dimensional Visual Simulation in Tidal Defense Engineering  

作　　者：钟登华 杨斌 李文倩 刘东海 佟大威 

机构地区：[1]State Key Laboratory of Hydraulic Engineering Simulation and Safety, Tianjin University

出　　处：《Transactions of Tianjin University》2013年第1期1-9,共9页天津大学学报（英文版）

基　　金：Supported by Tianjin Research Program of Application Foundation and Advanced Technology (No.12JCZDJC29200);Foundation for Innovative Research Groups of National Natural Science Foundation of China (No.51021004);National Key Technology R&D Program in the 12th Five-Year Plan of China(No.2011BAB10B06)

摘　　要：Any tidal defense engineering involves the collection and analysis of massive information about engineering structures and their surrounding environment. Traditional method, which is carried out mainly by means of twodimensional drawings and textures, is not efficient and intuitive enough to analyze the whole project and reflect its spatial relationship. Three-dimensional visual simulation provides an advanced technical means of solving this problem. In this paper, triangular irregular network (TIN) model simplified by non-uniform rational B-splines (NURBS) technique was used to establish the digital terrain model (DTM) of a super large region. Simulation of dynamic water surface was realized by combining noise function with sine wave superposition method. Models of different objects were established with different modeling techniques according to their characteristics. Application of texture mapping technology remarkably improved the authenticity of the models. Taking the tidal defense engineering in the new coastal region of Tianjin as a case study, three-dimensional visual simulation and dynamic roaming of the study area were realized, providing visual analysis and visible demonstration method for the management and emergency decision-making associated with construction.Any tidal defense engineering involves the collection and analysis of massive information about engineering structures and their surrounding environment. Traditional method, which is carried out mainly by means of twodimensional drawings and textures, is not efficient and intuitive enough to analyze the whole project and reflect its spatial relationship. Three-dimensional visual simulation provides an advanced technical means of solving this problem. In this paper, triangular irregular network （TIN） model simplified by non-uniform rational B-splines （NURBS） technique was used to establish the digital terrain model （DTM） of a super large region. Simulation of dynamic water surface was realized by combining noise function with sine wave superposition method. Models of different objects were established with different modeling techniques according to their characteristics. Application of texture mapping technology remarkably improved the authenticity of the models. Taking the tidal defense engineering in the new coastal region of Tianjin as a case study, three-dimensional visual simulation and dynamic roaming of the study area were realized, providing visual analysis and visible demonstration method for the management and emergency decision-making associated with construction.

关 键 词：tidal defense engineering  three-dimensional visual simulation  simulation modeling 

分 类 号：U656.2[交通运输工程—港口、海岸及近海工程]