The research of automatic cartographic generalization is a very difficult subject.
数字地图自动综合的研究是一个非常艰难的课题。
So the study of automatic cartographic generalization in the web environment is of the utmost urgency.
因此，对网络环境下的地图自动综合进行探索与研究已经迫在眉睫。
Can utilize the geographical data of foundation in existing GIS database based on single scale, produce mult-scale data synthetically through automatic cartographic generalization.
可以利用已有的基于单一比例尺的GIS数据库中的基础地理数据，通过自动制图综合生成多比例尺数据。
The purpose of the thesis is to utilize UML to improve GIS figure modeling and apply to figure modeling course with GIS linear data simplifying and automatic cartographic generalization.
本文的目的是利用UML改进GIS图形建模，并运用于对自动制图综合和GIS线状数据的简化的图形建模过程。
The key to question is how to use the map cartographic generalization or other theory to realize the automatic generalization for spatial objects.
问题的关键在于如何对空间目标运用地图制图综合理论或其它理论解决空间目标自动综合问题。
The key to question is how to use the map cartographic generalization or other theory to realize the automatic generalization for spatial objects.
问题的关键在于如何对空间目标运用地图制图综合理论或其它理论解决空间目标自动综合问题。
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