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。
In this foundation, this paper takes research on the division of transport economic area in order to carry on the expression of the geographical data of highway transportation.
在此基础上，研究运输经济区域的划分以进行公路运输地理数据的表达。
The error factors that influence data accuracy are proposed in both production and inspection. The method of the data error reduced and position accuracy of the foundation geographical...
指出了生产和检查中应注意的影响数据精度的误差因素，提出了减小数据误差、提高基础地理信息数据的位置精度的方法。
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