中国工程科学2013，Vol.15Issue(5)：42-46,5.
基于相邻关系的等高线树建立算法研究
An algorithm of neighbor relationship oriented contour tree building
摘要
Abstract
A contour tree has been found many important applications in extraction of terrain structure lines,terrain analysis,etc.A regular contour tree expressing the spatial relationship of contours is difficult to build,even with data of high quality.A new method is proposed in this paper:classify contours into close group and open group; build contour tree for each group respectively; finally amalgamate these two contour trees into one.With the elevation values,spatial relationship of contours is of easy accessibility.The result shows that the above mentioned method is correct and effective.关键词
等高线树/相邻关系/高程值/闭合等高线/不闭合等高线Key words
contour tree/ neighbor relationship/ elevation value/ close contour/ unclosed contour分类
天文与地球科学引用本文复制引用
郭沛沛,李成名,殷勇,丁圣陶..基于相邻关系的等高线树建立算法研究[J].中国工程科学,2013,15(5):42-46,5.基金项目
国家测绘地理信息局科技基金资助项目(A1118) （A1118）
