發(fā)布時間：2019-05-14 03:30

【摘要】：目前城市地理信息，如與建筑物相關(guān)的數(shù)據(jù)大部分是以二維的形式存儲。地理信息系統(tǒng)的軟件也是在二維數(shù)據(jù)上進行操作，諸如查詢，修改和更新等。二維數(shù)據(jù)表示地理信息限制了2DGIS的發(fā)展，對一些需要三維表示的數(shù)據(jù)，2DGIS不能很好地滿足要求。用3DGIS表示現(xiàn)實世界除了可以幫助查詢者清晰，直觀的獲得所關(guān)心的信息，還可以動態(tài)的，交互的分析二維平面和垂直方向位置信息之間的關(guān)系。盡管3DGIS的應(yīng)用有很大的優(yōu)勢，但是由于視野的局限性，用戶在瀏覽查詢得到的三維信息時，，就容易產(chǎn)生錯覺，不能很好的分析三維信息，因此需要實現(xiàn)2DGIS和3DGIS的一體化，即實現(xiàn)2DGIS與3DGIS的結(jié)合，查詢?nèi)S信息需要在3DGIS中實現(xiàn)，而查詢和分析二維信息則需要在2DGIS中實現(xiàn)。 本論文開發(fā)了基于GIS的油田社區(qū)信息系統(tǒng)，實現(xiàn)了主要的功能，主要包括2DGIS的基本功能，3DGIS的三維空間信息查詢、漫游、分析功能，以及2DGIS和3DGIS互響應(yīng)功能。設(shè)計開發(fā)了一個基于GIS的油田社區(qū)信息系統(tǒng)的原型系統(tǒng)－SLInfoSys（ShenLi YouTian Infor System）。本文的主要工作概括如下： （1）2DGIS系統(tǒng)的建立 實現(xiàn)了2DGIS的基本功能，包括支持多種數(shù)據(jù)文件；圖形顯示；查詢分析；空間分析；2DGIS到3DGIS的互響應(yīng)等。 （2）研究了三維模型的建立過程 三維模型的建立包括模型數(shù)據(jù)的獲取，模型數(shù)據(jù)的數(shù)據(jù)結(jié)構(gòu)的選取等。3DGIS采用基于結(jié)構(gòu)實體幾何法和邊界表示法的箱式分割數(shù)據(jù)結(jié)構(gòu)，并以此為基礎(chǔ)實現(xiàn)相應(yīng)的數(shù)據(jù)模型的設(shè)計。 （3）三維模型可視化的設(shè)計 通過VRML中間數(shù)據(jù)格式，對數(shù)據(jù)進行進行分析，處理，然后將空間數(shù)據(jù)和屬性數(shù)據(jù)存儲到數(shù)據(jù)庫中。在圖形顯示或查詢分析時，直接從數(shù)據(jù)庫中讀取相應(yīng)的空間數(shù)據(jù)，重構(gòu)三維虛擬場景，實現(xiàn)三維數(shù)據(jù)的可視化。 （4）交互操作的實現(xiàn) 系統(tǒng)提供了三種基本的交互操作：用戶與2DGIS的交互；用戶與3DGIS的交互；2DGIS和3DGIS的交互。對互響應(yīng)原理做了一定程度的研究。
[Abstract]:At present, most of the urban geographical information, such as building-related data, is stored in two-dimensional form. Geographic Information system (GIS) software also operates on two-dimensional data, such as query, modification and update. Two-dimensional data representation of geographic information limits the development of 2DGIS. 2DGIS can not meet the requirements of some data that need three-dimensional representation. Using 3DGIS to represent the real world can not only help the querier to obtain the concerned information clearly and intuitively, but also analyze the relationship between the two-dimensional plane and the vertical position information dynamically and interactively. Although the application of 3DGIS has great advantages, because of the limitation of visual field, users are prone to illusion when browsing the three-dimensional information obtained by query, and can not analyze the three-dimensional information very well, so it is necessary to realize the integration of 2DGIS and 3DGIS. That is, to realize the combination of 2DGIS and 3DGIS, querying 3D information needs to be implemented in 3DGIS, while querying and analyzing 2D information needs to be implemented in 2DGIS. In this paper, an oil field community information system based on GIS is developed, which realizes the main functions, including the basic functions of 2DGIS, the three-dimensional spatial information query, roaming and analysis functions of 3DGIS, and the mutual response function of 2DGIS and 3DGIS. A prototype system of oil field community information system based on GIS, SLInfoSys (ShenLi YouTian Infor System)., is designed and developed. The main work of this paper is summarized as follows: (1) the establishment of 2DGIS system realizes the basic functions of 2DGIS, including supporting a variety of data files, graphic display, query analysis, spatial analysis, 2DGIS to 3DGIS mutual response and so on. (2) the establishment of 3D model includes the acquisition of model data and the selection of data structure of model data. 3DGIS adopts box segmentation data structure based on structural entity geometry method and boundary representation method. On this basis, the design of the corresponding data model is realized. (3) the design of 3D model visualization analyzes and processes the data through VRML intermediate data format, and then stores the spatial data and attribute data into the database. In the process of graphic display or query analysis, the corresponding spatial data are read directly from the database, the 3D virtual scene is reconstructed, and the visualization of 3D data is realized. (4) the implementation system of interactive operation provides three basic interactive operations: the interaction between user and 2DGIS, the interaction between user and 3DGIS, and the interaction between 2DGIS and 3DGIS. The principle of mutual response is studied to a certain extent.
【學(xué)位授予單位】：電子科技大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：TP311.52;P208

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