地理空间信息格网环境下的制图综合研究

Research on the Digital Map Cartographic Generalization Based on Geographic Information Grid

本文利用地理空间信息格网所特有的编码层次性、多分辨率连续性等特点，通过进行编码变换实现了数据比例尺变换，设计定义“吸子”条件实现数据简化的方法进行了制图综合研究，探讨了地理空间信息格网环境下的制图综合方法，给出了相应的实验结果与分析，证实了此方法的可行性，为制图综合研究提供了一种新的方法。

Taking advantage of the unique characteristics of geographic information grid, such as the hierarchy of coding and the continuity of multi - resolution, the authors realized the variation of data scales through coding trans- formation, conducted cartographic generalization research employing the method of designing ＂attractors＂ to reduce the data, and made an in - depth study on the cartographic generalization method under the environment of geographic information grid. Finally an experiment test and analysis was conducted to prove the feasibility of the new method.