关键词: 制图综合, 无级比例尺数据处理, 数量选取模型

Abstract: Based on the traditional theory of cartographic generalization, this paper has proposed a relatively systematic, scientific and practical model of quantity selection of spatial objects. It is based mainly on spatial features properties and can be used to compress and recover geographic information in forms of vector automatically in accordance with the map scale. Then through the experiment of multiscale GIS with a set of maps in the region of Dalian, Liaoning province, this model and technique have been proved valuable and relatively successful.

Key words: cartographic generalization, data processing on varying map scale, quantitative selecting model of geographic elements