In this paper the author discusses the theories and methods on making high quality DEM and TIN based on terrain feature from digital contour line.
本文全面系统地论述了基于等高线、地性特征建立TIN和DEM的理论和方法。
The result of this method is content to contour line matching by building variant feature quality, constructing data structure, dealing with matching process's detail.
该方法通过提取曲线的相对不变特征量，构建数据结构，细致地处理匹配过程的细节，对轮廓曲线的部分匹配有着较为满意的匹配效果。
This Paper discusses the theories and methods on making high quality DEM bases on terrain feature from digital contour line.
本文系统地阐述了基于等高线数据建立高质量DEM的理论和方法。
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