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The Chengshiguanwang three-dimensional model of the design and implementation

Author: ShiMin
Tutor: XuLiuTong
School: Beijing University of Posts and Telecommunications
Course: Computer Science and Technology
Keywords: Three-dimensional model of the pipe network Underground pipe network information system 3D fittings library Java3D 3D visualization
CLC: TU990.3
Type: Master's thesis
Year: 2009
Downloads: 220
Quote: 1
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Abstract


Chengshiguanwang by the criss-crossing of the water supply, drainage, gas, heat, electricity, telecommunications, industrial pipeline, they are an important part of the urban infrastructure is the lifeline of the city. Many cities have been studied with the development of urban construction, and the establishment of the city pipe network geographic information system (UPGIS). However, the existing pipe network visualization of geographic information systems is the two-dimensional plane. In order to better show the spatial relationship between pipelines, three-dimensional visualization of geographic information system pipe network management system came into being, it provides users with three-dimensional modeling and three-dimensional display of the various types of pipe network. Geographic information system pipe network 3D visualization management system is an important part of establishing a three-dimensional model of the pipe network. In addition, three-dimensional model of the pipe network is also the basis for the analysis of three-dimensional space a large complex Chengshiguanwang system for scientific decision-making, economic dispatch, optimal allocation of technical means, and therefore very necessary to establish the three-dimensional model of the pipe network. In this thesis, the establishment of a three-dimensional model of the city pipe network system. Including Chengshiguanwang the basis of the three-dimensional model of the system - the data model of the pipe network, as well as the pipe network in the data model based on the three-dimensional topological structure. Meanwhile, in the process of the establishment of the three-dimensional model of the pipe network, to improve the efficiency of three-dimensional modeling, the paper proposes to establish a the 3D fittings template library to provide fast and accurate modeling of three-dimensional pipe elements, and allows the user visualization view, edit three-dimensional pipe model. The 3D pipe library is to establish the basis of the work of one of the three-dimensional model of the pipeline network, will save developers can focus on the function of the pipe network information system on the the pipe modeling of time and effort, and pipeline topology design. For more real and effective performance of the 3D pipeline network, this paper studies fittings visualization technologies: 3D texture mapping technology to increase the realism of the pipe surface; research viewpoint transformation, mouse interoperate. Visualization technology allows the user to view the pipe network in the three-dimensional virtual environment convenient. Finally, based on previous research, design and development of a pipe network visualization systems, including two-dimensional and three-dimensional visualization. Where 3D visualization is used in the three-dimensional model of the pipe network data model, the topology of the spatial location of the pipe is placed, error correction, as well as three-dimensional pipe Template Library. The system reaches the desired effect.

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CLC: > Industrial Technology > Building Science > Municipal Engineering > Pipeline project
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