【作者】 李靖；

【导师】 杨宏春； 金劲；

【作者基本信息】 电子科技大学 ， 软件工程（专业学位）， 2013， 硕士

【摘要】 地理数据在社会各行各业中运用都很广泛，也被称之为地理信息系统的核心，其重要性不言而喻。但由于数据种类繁多以及数据量庞大而导致数据共享和可视化难以实现，这是目前各行业面临的关键难题。WebGIS的出现让这个问题的解决变得有迹可循。本论文从社会经济指标数据的共享性和可视化两方面出发，以四川县级经济评价指标体系及数据为例，运用ArcGIS Server提供的模板WebMapping Application，在ASP.NET开发环境下实现Web方式的区域经济统计数据的可视化。选择以Web方式进行数据显示，可以使多个用户同时通过网络的方式访问所需的经济指标数据，实现了经济数据的共享。此外，本论文研究了通过SQL语句调用Access数据库的数据在表格控件中显示的查询功能，实现了利用饼状图、柱状图、分级渲染等专题显示的方式查看经济指标项，这些可视化的方式能够快速准确的表现用户感兴趣的数据。开发的实验系统将区域经济统计数据以WebGIS和专题图的方式直观地呈现给用户，实现了社会经济指标数据的共享性和可视化，用户可高效利用这些统计信息为辅助政府和企业决策提供科学依据。本论文共六章，各章的主要内容如下：第一章绪论介绍了统计数据网络共享的现状，选题的意义与价值，和本文的研究目标和主要内容；第二章归纳总结了本论文采用的关键技术及相关理论知识，主要包括地理数据可视化表达的GIS专题图技术、WebGIS平台软件及其开发技术、ArcGIS Server及其ASP.Net开发技术；第三章重点介绍了ArcGIS Server发布网络地图的方式与过程，以及GIS服务的原理和网络地图切片方法；第四章阐述了基于GeoDatabase构建统计指标地理数据库的方法，包括数据分析与组织、地理数据库结构设计、利用ArcGIS建立基于GeoDatabase模型的统计地理数据库、地理空间与属性数据入库及地图符号法的方法等；第五章则重点说明了利用ASP.NET、ArcServer实现专题图Web发布的方法及成果；第六章是论文的总结与展望。更多还原

【Abstract】 Geographic data is widely applied in all walks of life. And it is called the core ofgeographic information system, whose importance is self-evident. But it is difficult torealize the data sharing and visualization because the data is of a wide variety andexceedingly huge amount, which is the key difficulty of various sectors. The appearanceof WebGIS makes it possible to be solved. Taking the evaluation index system ofcounty economy of Sichuan province as an example, the thesis starts from the aspects ofthe data sharing and visualization of the economic indicators and applies the template ofWeb Mapping Application supplied by ArcGIS Server. The visualization of regionaleconomic statistical data is realized by web publication under the developmentenvironment of ASP.NET. Data display by web publication can make multiple usersvisit the data of economic indicators they need through internet at the same time,achieving the sharing of economic data. Besides, the thesis studies the inquiringfunction of grid control through calling up data from Access data base by SQL language.Users can check the economic indicators by pie chart, bar graph, grading render andother thematic display methods. These visualization methods can display the dataquickly and correctly which the users are interested in. The developed experimentsystem makes the statistical data of regional economic visually shown in front of theusers by WebGIS and thematic maps. After realized the data sharing and visualizationof social economic indicator, it offers a scientific basis for the government andcorporations to make decisions by taking advantage of these statistical informationeffectively.This thesis consists of six chapters. The main contents are as follows: the firstchapter of introduction describes the present situations of internet sharing of statisticaldata, and illustrates the significance and value of the selected topic. The research goalsand main contents of the thesis are also included; the second chapter summarizes thekey techniques and relative theoretic knowledges of the thesis, including mainly the GISthematic mapping technique of geographic data visualization, WebGIS platform software and its’ development techniques, ArcGIS Server and its’ ASP.NETdevelopment techniques; the third chapter emphasizes on the method and process ofpublishing web maps by ArcGIS Server, the principle of GIS Server and the web maptiling method; the fourth chapter elaborates on the method of constructing thegeographic database of statistical indicator based on GeoDatabse, including dataanalysis and organization, structure design of geographic data base, and as well themethod of constructing the geographic database of statistical indicator based onGeoDatabase by ArcGIS, geographical space and arcServer，attributive data loading andmethod of cartographic symbols; the fifth chapter focuses on the method andachievement of web publication of thematic maps by ASP.NET and ArcServer; thesixth chapter is the conclusion and prospects of the thesis.更多还原