地图概念及其基本特性的逻辑思考

地图与非地图都符合图的定义，由于地图表示的地物处于地球椭球面上而具有若干基本特性，因此地图获得了非地图所没有的丰富内涵和重要的文化价值。     

数字线划图缩编方法探讨

通过太原市数字线划图（DLG）缩编项目的生产实践,对数字化地形图缩编软件的选择和缩编方法进行了探讨,借助众多制图软件的优势功能,采用人机协同的工作方式,将地图综合过程分解,交互式地完成了太原市数字线划图的缩编工作,为实现地图缩编智能化开辟了一条捷径。     

面向模型的大比例尺制图综合框架设计与实现

模型综合作为制图综合的一部分 ,是通过改变地图内部目标关系的表达方式 ,使地图的表达更简单 ,进而使综合更方便。结合交互式制图综合软件AutoMap ,介绍了面向模型综合的系统设计框架和具体实现 ,并着重从地图目标的空间关系、几何属性和语义关系 3个方面来分析模型综合。     

2维矢量地图空间目标关系的组合式表达

矢量模式的地图平面空间目标是地图数据处理中常见的,其空间关系的描述与处理非常重要本文首先分析了平面地图上的尺度空间和拓扑空间的统一,以及点和直线段两两相互间的基本空间关系,并以这些基本窨绵组合为基础,试图利用组合式方法区分和描述地图空间点状、线状和面状空间目标两两相互间的空间关系,且得到各类空间关系的种数。     

国际海洋测绘教育培训特点及发展对策

分析了海洋测绘教育培训国际化和标准化的原因及进程,论述了海洋测绘国际化教育培训的指导性文件及内容,针对国际化海洋测绘教育培训的特点与发展趋势,提出了发展我国海洋测绘教育培训的对策与建议。     

多媒体电子地图用户界面适应性研究

以系统方法为指导,提出了交互界面的设计流程,包括需求分析、概念模型设计和详细界面设计三个阶段,结合地图使用者的特点,讨论了交互方式和交互形式的选择与配合以及界面隐喻的原则,重点提出了地图可视化系统中界面适应性的设计原则。希望能够用于地图可视化系统设计过程中交互界面的设计,从而促进多媒体电子地图交互效率和适应性的提高。     

Comparison of input data with different spatial resolution in landscape pattern analysis – A case study from northern Latvia

A suitable spatial scale needs to be selected in geographical and landscape ecological research, and this requires great consideration as different scales have profound effect on derived landscape spatial patterns. Numerous studies have investigated the effects of different scales on landscape metrics using simulated patterns, but few have been conducted to compare different data sources with variable scale for regional- and landscape-scale assessments. Possibly this has occurred because researchers have been prone to use the best available source, a well-known standard, and easiest to use. This study was conducted to assess the impact of input data resolution on values of landscape pattern metrics in four landscapes at scales 1:10 000, 1:50 000 and 1:100 000. The aim was to determine the applicability of three data sources for thematic models in landscape pattern analyses in the Eastern Baltic region. We found that the utility of CORINE Land Cover data for comprehensive structural assessment in mosaic-type landscapes was very limited, as the level of cartographic generalization excluded many small and linear landscape structure elements with potentially high importance for landscape functioning, such as habitat continuity. We also found that actual area harvested using clearcuts was considerably higher than shown in CORINE data, due to clearcuts size being much smaller than the minimum mapping unit. In the light of this, we suggest using data with spatial resolution corresponding to a cartographic scale of at least 1:50 000, in cases when spatial patches have size up to 25 ha.     

基于Delaunay三角关系的面状要素合并方法

详细介绍了一种基于Delaunay三角关系的面状要素合并的新方法，并举例阐述了该方法在居民地、植被和土质等面状要素的制图综合中的应用。