Aiming at the existed problem of sparsing elevation points in traditional topographic map generalization, this paper presented the sparsing method for elevation points based on feature points.

针对传统地形图缩编中高程点抽稀存在的问题，提出基于特征点的高程点抽稀的方法，使用此方法一方面可以保留特征点处的高程点，另外可以实现高程点的自动抽稀。

youdao