摘要
在溺谷海岸成因、地理特征分析基础上提出顾及地理特征保持的溺谷海岸线化简算法。该算法利用Delaunay三角网为支撑几何结构建立河口层次树模型表达溺谷海岸线特有的河口树枝状特征,通过次要河口的删除实现岸线化简。试验结果表明该算法保持了溺谷岸线树枝状特征,同时具有自身拓扑一致性、保证航海安全性等优点。
Based on the analysis of ria coast origin and geographic characteristics, a new method has been developed forria coastline simplification. Firstly hierarchical estuary tree model was built by Delaunay to represent dendritic pattern of ria coastline. Then minor estuaries were deleted in order to generalize the coastline. The results shows that the generalization results maintain dendritic pattern of ria coastline, and is self topologically consistent, granted for sail safety
出处
《测绘学报》
EI
CSCD
北大核心
2013年第4期595-601,共7页
Acta Geodaetica et Cartographica Sinica
