Finally, this paper summarizes main findings, and highlights further research directions in the near future, such as match, query, update and other issues for multi-scale spatial data.
最后，总结了本文的研究成果，并展望了该方向进一步研究的若干问题。
How to express, organize and process the global multi-scale spatial data better, particularly the massive vector data, has become a problem that attracts common attention from the GIS scholars.
如何更好地表达、组织与处理全球多尺度空间数据，尤其是海量矢量数据，已成为GIS学者普遍关注的问题。
Building a spatial data accessing engine, it can finish majority works of spatial data and manage big range and multi-scale geographic information.
构建空间数据访问引擎，实现对大范围、多尺度地理信息的管理和基本操作。
The method computes topological operator based on label, verdicts and merges the spatial relationship of geometric, expresses and displays the multi-scale of spatial data.
该方法建立基于标签的空间拓扑算子的计算，进行几何体空间关系的判断与合并，实现空间数据的多比例尺表达与显示。
The object spatial database stores the small-scale 2D object graph, object attribute data and multi-media data, large-scale object 3D data and so on.
目标空间数据库中存储有小比例尺二维目标图、目标属性数据以及多媒体数据、大比例尺目标三维视景数据等多种类型数据。
The object spatial database stores the small-scale 2D object graph, object attribute data and multi-media data, large-scale object 3D data and so on.
目标空间数据库中存储有小比例尺二维目标图、目标属性数据以及多媒体数据、大比例尺目标三维视景数据等多种类型数据。
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