...(二)two most commonly used data models 以下针对最常见的两种资料模型做简单介绍: 1、向量式资料模型(Vector data models) 电脑将所有的空间单元以连续座标的方式纪录各点的座标与采 样顺序。例如河流的资料是向量式资料,以线段的方式记录。
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In this paper, several GIS vector data structure models are analyzed and discussed deeply, also their adaptability on PDA are pointed out.
基于掌上电脑,对几种GIS矢量数据组织模型进行了分析和深入讨论,指出了其在掌上电脑上的适应性。
All of these two modules achieve unified management and scheduling about remote sensing images, vector maps, digital elevation models and three-dimensional scene data.
这两个模块的结合,实现了遥感影像、矢量地图、数字高程模型以及三维场景数据的统一管理和调度。
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