【摘要】：地下管線是城市運(yùn)行的血液，與人們的生活息息相關(guān)。傳統(tǒng)的地下管線設(shè)施不能滿足復(fù)雜的管線管理需求，而且隨著城市的快速發(fā)展，地下管線的數(shù)據(jù)量也越來越大，涉及到空間分析的部分更是無從著手。普通二維管線已經(jīng)運(yùn)用的越來越成熟，為管線在三維運(yùn)用領(lǐng)域打下了良好的基礎(chǔ)，但是隨著人們對(duì)三維可視化的需求，急需擴(kuò)展到三維環(huán)境中來提供可視化功能，，從而提高業(yè)務(wù)應(yīng)用能力和管理水平。本文從當(dāng)前二三維地下管線可視化技術(shù)著手，提出在三維VTK環(huán)境中搭建管線信息系統(tǒng)，并實(shí)現(xiàn)了初步的管線三維空間分析功能。 本文主要有以下研究要點(diǎn)： （1）VTK三維可視化技術(shù) 本文首先針對(duì)目前二、三維技術(shù)，特別是三維可視化技術(shù)做了總體介紹。然后對(duì)VTK流水線可視化渲染技術(shù)做了深入研究，研究其圖形模型和可視化模型機(jī)制，探討VTK對(duì)管線的如何建模渲染和實(shí)現(xiàn)。 （2）地下管線空間數(shù)據(jù)建模與管理 根據(jù)地下管線數(shù)據(jù)的基本的特征，合理的設(shè)計(jì)三維地下管線的數(shù)據(jù)結(jié)構(gòu)和對(duì)三維地下管線數(shù)據(jù)的建模，建立專門的城市地下管線數(shù)據(jù)庫，并提出了基于ArcSDE的三層管線空間數(shù)據(jù)庫管理組織，實(shí)現(xiàn)管線數(shù)據(jù)的屬性數(shù)據(jù)和空間數(shù)據(jù)的一體化存儲(chǔ)。 （3）使用VTK渲染三維地下管線 本文探討了三維管線在VTK環(huán)境中的三維模型渲染機(jī)制，然后設(shè)計(jì)了ColladaToVTK算法將Collada文件的DAE格式轉(zhuǎn)入VTK中進(jìn)行渲染。論文還設(shè)計(jì)了三維管線空間數(shù)據(jù)與VTK可視化模型轉(zhuǎn)換接口（FeatureClassToVTK）將ArcSDE中的要素類導(dǎo)入VTK環(huán)境中進(jìn)行三維可視化。 （4）三維地下管線空間分析 研究了三維地下管線的基本的空間分析功能的實(shí)現(xiàn)算法，包括斷面分析、最短路徑分析、爆管分析、碰撞分析等。并結(jié)合了GIS的空間分析功能和相關(guān)開發(fā)接口進(jìn)行了編碼設(shè)計(jì)，可以為管線相關(guān)部門的決策提供有力的科學(xué)依據(jù)。 總之，本文深入研究了三維管線數(shù)據(jù)建模和VTK可視化渲染實(shí)現(xiàn)機(jī)制，并創(chuàng)新性的給出了三維管線數(shù)據(jù)在VTK三維環(huán)境下渲染實(shí)現(xiàn)的過程，實(shí)現(xiàn)了簡單的三維管線空間分析，為管線系統(tǒng)在三維層次上提供了一個(gè)新的思路和解決方案。
[Abstract]:Underground pipeline is the blood of urban operation, which is closely related to people's life. The traditional underground pipeline facilities can not meet the complex pipeline management needs, and with the rapid development of the city, the amount of data of underground pipelines is becoming larger and larger, and the part involving spatial analysis is impossible to start. The ordinary two-dimensional pipeline has been used more and more mature, which has laid a good foundation for the pipeline in the field of three-dimensional application, but with the demand of three-dimensional visualization, it is urgent to expand to the three-dimensional environment to provide visualization function. In order to improve the business application ability and management level. Starting from the current visualization technology of 2D underground pipeline, this paper proposes to build pipeline information system in 3D VTK environment, and realizes the preliminary 3D spatial analysis function of pipeline. The main points of this paper are as follows: (1) VTK 3D visualization technology this paper first introduces the current 3D technology, especially 3D visualization technology. Then the visual rendering technology of VTK pipeline is deeply studied, its graphic model and visualization model mechanism are studied, and how to model and render the pipeline by VTK is discussed. (2) according to the basic characteristics of underground pipeline data, the data structure of 3D underground pipeline and the modeling of 3D underground pipeline data are reasonably designed according to the basic characteristics of underground pipeline data. A special urban underground pipeline database is established, and a three-tier pipeline spatial database management organization based on ArcSDE is proposed to realize the integrated storage of attribute data and spatial data of pipeline data. (3) using VTK to render 3D underground pipeline, this paper discusses the 3D model rendering mechanism of 3D pipeline in VTK environment, and then designs ColladaToVTK algorithm to transfer the DAE format of Collada file to VTK for rendering. The interface between 3D pipeline spatial data and VTK visualization model transformation interface (FeatureClassToVTK) is also designed to import the feature classes in ArcSDE into VTK environment for 3D visualization. (4) the spatial analysis of 3D underground pipeline studies the realization algorithm of the basic spatial analysis function of 3D underground pipeline, including section analysis, shortest path analysis, tube explosion analysis, collision analysis and so on. Combined with the spatial analysis function of GIS and the related development interface, the coding design is carried out, which can provide a powerful scientific basis for the decision-making of pipeline related departments. In a word, this paper deeply studies the mechanism of 3D pipeline data modeling and VTK visual rendering, and innovatively gives the process of 3D pipeline data rendering in VTK 3D environment, and realizes a simple 3D pipeline spatial analysis. It provides a new idea and solution for pipeline system at three dimensional level.
【學(xué)位授予單位】：江西理工大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P208;TU990.3;TP311.52

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