On the basis of analyzing the characters of data elements forming maps, a multiresolution model of maps with variable scale was presented.
在分析构成勘探部署图数据元素特点的基础上，提出了不同比例尺图件的多分辨率模型。
A new kind of variable scale projection is obtained. This method opens up new function and application range for common map projections. Systematical results and applications have been obtained.
该研究开拓了常用地图投影的功能和应用范围，获得了系统的理论结果和应用实例。
A new kind of variable scale projection is obtained. This method opens up new function and application range for common map projections. Systematical results and applications have been obtained.
该研究开拓了常用地图投影的功能和应用范围，获得了系统的理论结果和应用实例。
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