地性线自动识别与跟踪及其在地貌等高线图形自动综合中的应用

Automatic Recognition and Tracking of Skeletons and Its Application in Automatic Generalization of Contour Lines

摘要: 本文是在文献[2]的基础上对等高线图形进行成组综合的进一步探讨。在利用谷底线进行地貌综合的实例中,提出了按谷间距选取地性线的算法,还提出了关于插值点高程修正,地性线跟踪中补点的运用和地性线调整等关键性的改进措施。

Abstract: This paper is a further research for automatic generalization of contour lines in sets on the basis of reference No.[2].In the example of relief generalization by using valley line,the following key points are discussed:The algorithm of selecting skeletons by using distances between valley lines,the approach of modification for the heights of interpolates points,the use of supplemental points in tracking and adjustment of skeletons,etc.