本文選題：三維建模技術(shù) + 管網(wǎng)建模　； 參考：《中國地質(zhì)大學(xué)（北京）》2013年碩士論文

【摘要】：城市地下管網(wǎng)是城市賴以生存和發(fā)展的基礎(chǔ)設(shè)施，承載著能源供應(yīng)、信息傳輸和交換等重任，與人們的生活息息相關(guān)。隨著信息社會的飛速發(fā)展，，清楚的了解掌控城市地下管網(wǎng)的現(xiàn)狀，將為城市的有效規(guī)劃、系統(tǒng)性建設(shè)和高效管理提供有力的決策支持。無論從當(dāng)前公共領(lǐng)域還是市場需求領(lǐng)域來考慮，傳統(tǒng)二維地下管網(wǎng)管理信息系統(tǒng)有著空間表現(xiàn)能力差、空間查詢分析功能缺乏、交互性差等局限性，因此城市地下管網(wǎng)系統(tǒng)三維化是管網(wǎng)系統(tǒng)發(fā)展的一個新方向，也是城市地下管網(wǎng)發(fā)展的必然趨勢。 本系統(tǒng)以CityMaker作為3D GIS平臺，使用Visual Studio2008和C++、C#.Net作為開發(fā)環(huán)境，采用SQL Server2005建立地理特征要素數(shù)據(jù)庫，編程實現(xiàn)管網(wǎng)快速自動建模。本文對城市地下管網(wǎng)分布進(jìn)行分析，結(jié)合自身平臺特點和參考了常用三維建模方法，提出了適合本GIS平臺的三維建模方式，使用三維數(shù)據(jù)驅(qū)動建模技術(shù)實現(xiàn)管網(wǎng)的自動構(gòu)建工作。 本文首先依據(jù)管網(wǎng)建模原則，對管網(wǎng)組織結(jié)構(gòu)的分析，對管網(wǎng)模型進(jìn)行了簡化。通過對管線位置確定和幾何表面生成，構(gòu)造管線模型；再對管網(wǎng)連接處特征點彎管和變徑進(jìn)行建模計算；對附屬設(shè)施管點如雨水井、閥門、三通等施行導(dǎo)入模型式建模，在此建模理論的基礎(chǔ)上摒棄了傳統(tǒng)手工、半手工三維地下管網(wǎng)模型構(gòu)建方式，提出了基于管網(wǎng)信息數(shù)據(jù)庫的管網(wǎng)三維自動構(gòu)建技術(shù)。在三維數(shù)據(jù)驅(qū)動建模之前，先使用數(shù)據(jù)標(biāo)準(zhǔn)化處理工具規(guī)范化多源數(shù)據(jù)，文中以shape文件格式為例，詳細(xì)展示了數(shù)據(jù)標(biāo)準(zhǔn)化處理過程，實現(xiàn)了外源數(shù)據(jù)標(biāo)準(zhǔn)化及入庫處理過程，再通過管網(wǎng)數(shù)據(jù)場景生成工具將標(biāo)準(zhǔn)化的數(shù)據(jù)生成平臺大文件，最終在CityMaker Explorer的地球控件中可視化顯示，實現(xiàn)了對大場景、多類型三維管網(wǎng)快速、自動建模。文中還對綜合斷面分析模塊的斷面分析功能中涉及到的關(guān)鍵技術(shù)進(jìn)行了剖析，對縱斷面分析中管點到管點的最短路徑問題進(jìn)行了詳細(xì)闡述，并實現(xiàn)了對管網(wǎng)中管線和管點屬性信息的實時查詢，以及任意管段之間截面線距計算和管線、管點屬性信息參數(shù)設(shè)置。最終生成的管網(wǎng)場景證明此建模方式取得了較好的建模效果，管網(wǎng)的查詢分析功能也快速方便。
[Abstract]:Urban underground pipe network is the infrastructure on which the city depends for its survival and development. It bears the important tasks of energy supply, information transmission and exchange, and is closely related to people's lives. With the rapid development of the information society, a clear understanding of the current situation of urban underground pipe network will provide effective decision support for the effective planning, systematic construction and efficient management of the city. Considering from the current public domain or market demand field, the traditional two-dimensional underground pipe network management information system has the limitations of poor spatial performance, lack of spatial query and analysis function, poor interactivity, etc. Therefore, it is a new direction of the development of urban underground pipe network system and an inevitable trend of the development of urban underground pipe network system. In this system, CityMaker is used as 3D GIS platform, Visual Studio2008 and C#.Net are used as development environment, and SQL Server2005 is used to set up the database of geographical feature elements, and the rapid and automatic modeling of pipe network is realized by programming. In this paper, the distribution of urban underground pipe network is analyzed. Combining with the characteristics of its own platform and referring to the commonly used 3D modeling methods, a 3D modeling method suitable for this GIS platform is put forward. Three-dimensional data-driven modeling technology is used to realize the automatic construction of pipe network. Firstly, according to the principle of pipe network modeling, the structure of pipe network is analyzed, and the pipe network model is simplified. The pipeline model is constructed by determining the location of the pipeline and generating the geometric surface, and then modeling and calculating the characteristic points of pipe network connection, such as Rain Water well, valve, three-way, etc. On the basis of this modeling theory, the traditional manual and semi-manual 3D underground pipe network model construction method is abandoned, and the technology of pipe network 3D automatic construction based on pipe network information database is put forward. Before 3D data-driven modeling, the multi-source data is standardized by using the data standardization processing tool. Taking the shape file format as an example, the process of data standardization processing is demonstrated in detail, and the process of external data standardization and database processing is realized. Then, the standardized data generation platform is created by the pipe network data scene generation tool. Finally, it is visualized in the earth control of CityMaker Explorer to realize the fast and automatic modeling of the large scene and multi-type 3D pipe network. In this paper, the key technologies involved in the function of section analysis of the integrated section analysis module are analyzed, and the problem of the shortest path from the pipe point to the pipe point in the longitudinal section analysis is described in detail. The real-time query of pipeline and pipe-point attribute information, the calculation of cross-section line distance between arbitrary sections, and the parameter setting of pipeline and pipe-point attribute information are realized. The result shows that the modeling method has achieved good modeling effect and the query and analysis function of the pipe network is also fast and convenient.
【學(xué)位授予單位】：中國地質(zhì)大學(xué)（北京）
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P208;TU990.3

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