【作者】 王洋；

【导师】 方少红；

【作者基本信息】 华中科技大学 ， 软件工程， 2011， 硕士

【摘要】 资源环境规划问题是我国在新世纪里实现可持续发展战略的重要议题。地理信息产业的关键问题是对资源和环境进行统筹管理。在全球融合和信息化时代加速到来的背景下,有关地理信息产业的研究在未来的国防、军事、经济和文化事业的发展过程中必将起到越来越重要的推动作用。智能化和自动化是地图信息处理环节中决定国防地理信息技术进步的重要制约因素。然而在目前的实践中,地图自动注记问题等一系列绘图问题阻碍着地图信息处理智能化及自动化水平的提高,严重限制了国防地理信息科学的发展。军标地图自动注记问题是地理信息科学领域的国防前沿课题,也是地图注记自动化发展研究的主要问题,军标地图注记自动化的研究在地理信息科学领域具有十分重要的理论和实践意义。为使得军标地图注记出的输出结果图片更加清晰美观,尽量降低注记信息的缺失概率,就要求我们把注记信息精确自动地标注到地图元素上。军标地图自动注记系统主要包含地图元素的数据管理、数据预处理和地图注记三个基本功能模块,采用Microsoft Visual C++6.0和Oracle 10g的整合支撑软件环境,完成了军标地图数据管理和地图注记两项主要功能。军标地图数据管理功能允许用户获取以及处理多项地理数据;提供无损压缩管理工具、数据处理工具;实现了点要素、线要素和面要素的注记算法,并对面要素注记算法进行了算法改进,大大简化了地图元素数据访问和管理的难度。地图注记功能可使用户对地图数据交叉编辑,提供了图层管理、军标注记、地图元素显示控件等绘制工具,可快速将地图元素信息转换为符号并输出符合标准的军标地图。更多还原

【Abstract】 Resources and environment problems have been China’s important issues to achieve sustainable development strategy in the new century. The main features of the geographic information industry are the integrated management of resources and the environment. Under the background of the information age and in the accelerating global integration, the research on geographic information industry for the future military, economic and cultural development will surely play an increasingly important role.The intelligent and automation of geographic information processing is the main factor of impacting the development of national defense geographical information industry. However, in current practice, drawing question which includes map annotation issues is always embarrassing the intelligent and automation of geographic information processing, which seriously restricts the development of geographic information science. Automatic electronic map annotation problem is an international frontier problem in GIS area, and also the main problem of map automation, whose research plays an important role in theoretical and practical significance of geographic information field.In order to make the electronic map output images more clear and beautiful and minimize the defects of note information, we need to label geographical elements dynamically. Electronic map automatic note system is composed by three parts, data management module, data pretreatment module and noting module. Using VC++6.0 and oracle 10g it has two big functions, electronic map data management and map plotting.Map data management provides user storing and operating various geographic data, and provides geographic data catalogue of management tools, data processing tools. The design and implementation of point, line and an improved surface labeling algorithm makes the geographic data access and management easier. Map plotting provides many kinds of tools such as layer management, graphics and text marking plot, military plot, control tools of map showing, it can quickly implement data map symbolic and output electronic map.更多还原