基于约束D-TIN的等高线簇与河网协同综合方法

传统制图综合中针对水系、地貌等不同地理要素的分治策略,往往导致综合后要素目标之间在空间与语义上的冲突.考虑地形与河流之间的空间依赖性,提出一种等高线簇与河网协同的制图综合方法,即利用两种要素目标顶点在约束D-TIN描述下的空间邻近关系,并通过提取和组织谷地等高线弯曲段数据,构建两要素有效协同关系.在此基础上将等高线按所...

Cooperative Generalization Method of Contour Cluster and River Network Based on Constrained D-TIN

The defect of the traditional cartographic generalization strategy which processes the map features separately hence often causes spatial and semantic conflicts between different geographical features on the map.Taking into account the spatial relevance between terrain and rivers,a cooperative generalization method which integrates the contour clusters with the river networks is proposed.Using the spatial proximity relations between the vertexes of the above-mentioned two map features in the constrained Del...