【摘要】：數(shù)據(jù)是GIS的重要組成部分,其質(zhì)量的好壞直接影響著國(guó)家各行業(yè)、各部門利用GIS數(shù)據(jù)進(jìn)行分析、決策的可靠性和正確性。因此,隨著計(jì)算機(jī)技術(shù)和GIS技術(shù)的飛速發(fā)展,利用當(dāng)前計(jì)算機(jī)技術(shù)對(duì)GIS數(shù)據(jù),特別是對(duì)其中矢量數(shù)據(jù)的質(zhì)量進(jìn)行快速、有效的檢查,從而提供正確、可靠以及科學(xué)的矢量數(shù)據(jù)就顯得尤為重要。相比以往的地理信息數(shù)據(jù),地理國(guó)情監(jiān)測(cè)矢量數(shù)據(jù)作業(yè)范圍更廣,涉及的內(nèi)容更多,準(zhǔn)確性要求也更高,因此,對(duì)其矢量數(shù)據(jù)進(jìn)行質(zhì)量檢查是一項(xiàng)艱巨的任務(wù)。目前,地理國(guó)情監(jiān)測(cè)矢量數(shù)據(jù)質(zhì)量檢查軟件主要存在兩方面的問題:一方面,檢查內(nèi)容不夠全面,檢查效率不高;另一方面,通用性較低,不能滿足數(shù)據(jù)組織與檢查規(guī)則經(jīng)常發(fā)生變動(dòng)的情況。針對(duì)以上問題,本文以地理國(guó)情監(jiān)測(cè)矢量數(shù)據(jù)為主要研究對(duì)象,設(shè)計(jì)了一套通用性較強(qiáng)的數(shù)據(jù)質(zhì)量檢查系統(tǒng)。首先,通過對(duì)地理國(guó)情監(jiān)測(cè)成果數(shù)據(jù)標(biāo)準(zhǔn)進(jìn)行詳細(xì)分析,總結(jié)出其矢量數(shù)據(jù)的質(zhì)量檢查內(nèi)容;其次,設(shè)計(jì)了質(zhì)量檢查過程中所需的數(shù)據(jù)庫(kù)模版、方案數(shù)據(jù)庫(kù)以及規(guī)則庫(kù);最后,對(duì)系統(tǒng)的體系結(jié)構(gòu)與功能模塊進(jìn)行詳細(xì)設(shè)計(jì),通過編寫相應(yīng)代碼來對(duì)系統(tǒng)進(jìn)行開發(fā)研究。取得的主要成果如下:(1)設(shè)計(jì)了數(shù)據(jù)庫(kù)模版、質(zhì)量檢查規(guī)則庫(kù)、方案數(shù)據(jù)庫(kù)以及結(jié)果數(shù)據(jù)庫(kù)。數(shù)據(jù)庫(kù)模板包含了待檢數(shù)據(jù)的正確數(shù)據(jù)組織結(jié)構(gòu),解決了由于數(shù)據(jù)組織結(jié)構(gòu)不同而難以實(shí)現(xiàn)質(zhì)檢系統(tǒng)通用的問題;方案數(shù)據(jù)庫(kù)包含了針對(duì)特定待檢數(shù)據(jù)的所有質(zhì)量檢查規(guī)則,用戶可以通過修改方案數(shù)據(jù)庫(kù)來實(shí)現(xiàn)對(duì)不同數(shù)據(jù)的質(zhì)量檢查;質(zhì)量檢查規(guī)則庫(kù)包括了檢查過程中涉及到的檢查規(guī)則函數(shù),進(jìn)行拓?fù)錂z查時(shí),需調(diào)用規(guī)則庫(kù)中的檢查函數(shù);質(zhì)量檢查錯(cuò)誤信息存儲(chǔ)在檢查結(jié)果數(shù)據(jù)庫(kù)中,用戶可根據(jù)數(shù)據(jù)庫(kù)中的錯(cuò)誤信息對(duì)數(shù)據(jù)進(jìn)行修改。(2)根據(jù)GIS系統(tǒng)的設(shè)計(jì)原理、遵循系統(tǒng)統(tǒng)一性、安全性等設(shè)計(jì)原則,采用面向?qū)ο蟮能浖_發(fā)方法對(duì)系統(tǒng)的體系結(jié)構(gòu)與功能模塊進(jìn)行設(shè)計(jì),并對(duì)圖形圖像管理模塊、檢查模塊和結(jié)果管理模塊三大功能模塊進(jìn)行詳細(xì)設(shè)計(jì)。(3)基于ArcEngine組件,采用C#語言對(duì)系統(tǒng)進(jìn)行開發(fā)。本系統(tǒng)不僅可以對(duì)地理國(guó)情監(jiān)測(cè)矢量數(shù)據(jù)進(jìn)行質(zhì)量檢查,還可以通過創(chuàng)建不同的方案數(shù)據(jù)庫(kù)來對(duì)其他的地理信息數(shù)據(jù)進(jìn)行質(zhì)量檢查。
[Abstract]:Data is an important part of GIS. The quality of data directly affects every industry in our country. All departments use GIS data to analyze the reliability and correctness of decision-making. Therefore, with the rapid development of computer technology and GIS technology, the quality of GIS data, especially the vector data, is checked quickly and effectively by using the current computer technology, so as to provide the correct. Reliable and scientific vector data is particularly important. Compared with the previous geographic information data, the scope of geographical monitoring vector data is wider, the content involved is more, and the accuracy requirement is higher. Therefore, it is a difficult task to check the quality of vector data. At present, there are two main problems in the software for checking the quality of vector data in geographical situation monitoring: on the one hand, the contents of the inspection are not comprehensive enough and the inspection efficiency is not high; on the other hand, the universality of the software is low. Failure to meet the frequent changes in data organization and inspection rules. Aiming at the above problems, this paper designs a data quality inspection system with strong generality, taking the vector data of geographical situation monitoring as the main research object. Firstly, through the detailed analysis of the data standard of the results of geographical situation monitoring, the content of the vector data quality inspection is summarized. Secondly, the database template, the scheme database and the rule base are designed for the quality inspection process. The architecture and function modules of the system are designed in detail, and the corresponding codes are written to develop the system. The main achievements are as follows: (1) Database template, quality check rule base, scheme database and result database are designed. The database template contains the correct data organization structure of the data to be checked, which solves the problem that it is difficult to realize the universal quality inspection system because of the different data organization structure. The user can modify the scheme database to realize the quality check of the different data, the quality check rule base includes the check rule function involved in the checking process, and the checking function in the rule base should be called when the topology is checked. The quality check error information is stored in the check result database, and the user can modify the data according to the error information in the database. (2) according to the design principle of GIS system, the design principles of system unity and security are followed. The architecture and function modules of the system are designed by using the object-oriented software development method. The graphic and image management module, the inspection module and the result management module are designed in detail. (3) based on the ArcEngine component, the system is designed in detail. C # language is used to develop the system. The system can not only check the quality of the vector data of geographical situation monitoring, but also check the quality of other geographic information data by creating different scheme databases.
【學(xué)位授予單位】：長(zhǎng)安大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2017
【分類號(hào)】：P208

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