基于等高线提取地形特征线的研究

¹武汉大学资源与环境科学学院,武汉市珞喻路129号430079;²武汉大学地理信息系统教育部重点实验室,武汉市珞喻路129号,430079;³武汉大学测绘遥感信息工程国家重点实验室,武汉市珞喻路129号,430079;⁴黄冈师范学院计算机科学与技术学院,黄冈市新港2路146号,438000

基金项目: 国家自然科学基金资助项目(40571133)

详细信息

Extracting Topographic Characteristic Line from Contours

¹School of Resource and Environment Science,Wuhan University,129 Luoyu Road,Wuhan 430079,China;² Key Laboratory of Geographic Information System,Ministry of Education,Wuhan University, 129 Luoyu Road,Wuhan 430079,China;³ State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,129 Luoyu Road,Wuhan 430079,China;⁴ School of Computer Science and Technology,Huanggang Normal University,146 Xingang Road,Huanggang 438000,China

Funds: 国家自然科学基金资助项目(40571133)

摘要: 借助约束Delaunay三角网,研究了两种从等高线数据提取地形特征线的方法。给出了两种方法的实现过程,讨论了实验结果的异同,并分析了存在差异的原因。
- 等高线 /
- Delaunay三角网 /
- 曲率 /
- 形状指数 /
- 地形特征线
Abstract: Two kinds of methods on extracting topographic characteristic lines from contours are presented,by means of constrained Delaunay TIN,and their computing processes are given.Based on these methods,similarity and difference of the experimental results is discussed,and the reason resulting in these differences is analyzed.
- contour /
- Delaunay TIN /
- curvature /
- shape index /
- topographic characteristic line