【摘要】：WebGIS是傳統(tǒng)GIS技術(shù)和互聯(lián)網(wǎng)相結(jié)合的產(chǎn)物,隨著互聯(lián)網(wǎng)的快速發(fā)展,使得WebGIS的應(yīng)用逐漸成為大眾化工具,而且擴(kuò)展到社會(huì)各個(gè)領(lǐng)域。 基于XML的SVG,是W3C推薦的網(wǎng)絡(luò)矢量圖形解決方案,具有完全開放的、二維矢量、擴(kuò)展性強(qiáng)、圖形表現(xiàn)力強(qiáng)的特點(diǎn),使得越來越多的知名軟件廠商逐步加大對(duì)SVG的研究力度,基于SVG的Web圖形應(yīng)用程序如雨后春筍般的出現(xiàn),SVG的應(yīng)用范圍也從原先單一的地理信息系統(tǒng)領(lǐng)域向其他領(lǐng)域擴(kuò)展。 本文分析了WebGIS的研究現(xiàn)狀和發(fā)展趨勢(shì),系統(tǒng)介紹了SVG的概念以及SVG應(yīng)用技術(shù),對(duì)基于.NET的Ajax引擎基本框架進(jìn)行改進(jìn),通過分析用戶的需求,設(shè)計(jì)了一個(gè)基于SVG的三層體系結(jié)構(gòu)的數(shù)字校園的WebGIS系統(tǒng)。該系統(tǒng)實(shí)現(xiàn)客戶端和服務(wù)端的交互,地理信息數(shù)據(jù)的一體化管理,也為數(shù)字校園的資源利用和統(tǒng)一管理提供了一個(gè)高效、便捷的方法。研究表明,該系統(tǒng)價(jià)格低,擴(kuò)展性、兼容性高,只需普通的瀏覽器即可,真正能夠滿足企業(yè)發(fā)布個(gè)性化地圖服務(wù)的需求。 本文的主要完成的工作包括：對(duì)傳統(tǒng)的WEBGIS技術(shù)缺陷進(jìn)行了分析；對(duì)SVG和WEBGIS進(jìn)行結(jié)合的可行性進(jìn)行了分析和驗(yàn)證；對(duì)Ajax引擎的設(shè)計(jì)進(jìn)行了改進(jìn)；利用SVG和改進(jìn)的Ajax引擎為保險(xiǎn)職院設(shè)計(jì)了數(shù)字校園WEBGIS系統(tǒng),并進(jìn)行了驗(yàn)證。 本文的創(chuàng)新點(diǎn)在于對(duì)基于.NET的Ajax引擎進(jìn)行了改進(jìn),將SVG和WEBGIS進(jìn)行結(jié)合并應(yīng)用在數(shù)字校園中,并利用SVG和改進(jìn)的Ajax引擎對(duì)系統(tǒng)進(jìn)行了開發(fā),實(shí)現(xiàn)了滿足數(shù)字校園的WEBGIS應(yīng)用原型系統(tǒng)。利用系統(tǒng)對(duì)主要功能的實(shí)現(xiàn)進(jìn)行演示表明了系統(tǒng)具有一定的可靠性和實(shí)用性。
[Abstract]:WebGIS is the product of the combination of traditional GIS technology and Internet. With the rapid development of Internet, the application of WebGIS has gradually become a popular tool and extended to every field of society. XML-based SVG, is a network vector graphics solution recommended by W3C. It has the characteristics of completely open, two-dimensional vector, strong expansibility and strong graphics expression, which makes more and more well-known software manufacturers step up their research on SVG. The Web graphics application based on SVG has sprung up, and the application scope of SVG has also expanded from the original single GIS domain to other fields. This paper analyzes the research status and development trend of WebGIS, introduces the concept of SVG and the application technology of SVG systematically, improves the basic framework of Ajax engine based on .NET, and analyzes the needs of users. A digital campus WebGIS system based on SVG is designed. The system realizes the interaction between client and server and the integrated management of geographic information data. It also provides an efficient and convenient method for the resource utilization and unified management of digital campus. The research shows that the system has the advantages of low price, expansibility and high compatibility. It only needs a common browser, and can really meet the needs of enterprise to publish personalized map service. The main work completed in this paper includes: analyzing the defects of traditional WEBGIS technology, analyzing and verifying the feasibility of combining SVG and WEBGIS, improving the design of Ajax engine, analyzing and verifying the feasibility of combining SVG and WEBGIS, and improving the design of Ajax engine. A digital campus WEBGIS system for insurance vocational college is designed by using SVG and improved Ajax engine, and verified. The innovation of this paper is to improve the. Net-based Ajax engine, combine SVG and WEBGIS and apply it in digital campus, and develop the system by using SVG and improved Ajax engine. The WEBGIS application prototype system which satisfies the digital campus is implemented. Using the system to demonstrate the realization of the main functions shows that the system has a certain reliability and practicability.
【學(xué)位授予單位】：中南大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：TP393.09;P208

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