组件式GIS中地图显示模块的设计与实现

【作者】 郭晶；

【导师】 华一新；

【作者基本信息】 中国人民解放军信息工程大学 ， 地图制图学与地理信息工程， 2002， 硕士

【摘要】 组件式地理信息系统(简称组件GIS)是适应软件组件化潮流的新一代地理信息系统。本文以“组件式地理信息系统的地图显示”为核心，分别阐述了组件、组件GIS和组件式软件开发的理论和方法，对现有组件GIS产品进行了研究分析，重点设计实现了地图显示的组件，其中涉及到了数据结构的定义和地图符号库的建立，以及导航功能的设计实验等内容。 本文首先阐述了组件技术和组件GIS的产生、研究现状与发展趋势，讨论了组件技术对软件产业的形式产生的巨大影响，明确了研究地图显示组件的现实意义及其在PowerComMap中的位置。第二部分介绍了组件式软件开发的基本理论和方法，并对现有组件GIS产品进行了研究分析，确立了设计思路。第三部分运用软件工程的设计思路，以组件式软件设计思想为指导，设计了地图显示系统的框架模型、数据结构、地图符号库和系统功能，并在此基础上，利用面向对象的技术和方法设计了地图显示对象类。第四部分实现了PowerComMap中的地图显示模块，附以一个应用实例来验证组件式地理信息系统的优势。第五部分，介绍了导航组件的研究，包括两部分工作，一是在PowerComMap中添加导航功能，二是本着组件GIS的研究思路，在基于Windows CE操作系统的掌上电脑中，设计实验了以GPS导航功能为主的组件化GIS。最后，对全文进行了总结。更多还原

【Abstract】 Components Geography Information (ComGIS), a new technique based on Components Software, is the latest tendency of GIS technology. Based on the main idea of "The Map Display of ComGIS", the concept and technological foundation of ComGIS, the theory of Component (COM), and Component-based Development (CBD) are discussed separately in this paper; And some products of ComGIS in existence are studied. Also, system designs and development models of The Map Display of ComGIS have been presented based on recent practices, including the structure of data and map symbol library.Firstly, this paper emphasizes the great significance in the study of the map display component and its status in the PowerComMap (PCM). On the basis of analyzing the emergency, development and tendency of COM and ComGIS, and then discusses the great effects on the software development. In the second part, the basic theory and method about CBD is studied, and the component products in existence are analyzed in order to provide the idea for the design of map display. In the third part of this paper, the map display model, data structure, map symbol library, and system function of the Map Display system are designed with the direction of CBD theory; and finally, the map display objects classes are worked out with OO technology.In the forth part, the map display model is realized, and a sample-YunNan ecology system based on PCM is quoted, by which the advantage of COM GIS is proved. In the fifth part, the paper introduces the present work designing and testing of GPS function in PCM, presents the primary design of navigation Component Geography Information based on Windows CE operation system and GPS. At last, the whole paper is summed up.更多还原