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测绘学报  2015 

复合面状对象拓扑关系的表达模型

DOI: 10.11947/j.AGCS.2015.20130708, PP. 438-444

Keywords: 复合面状对象,拓扑关系,9-交集模型扩展

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Abstract:

为表达复合面状对象间的细节拓扑关系,对经典9-交集模型进行了改进,给出两种基于分解思想的9-交集模型,其中分解成简单区域的9-交集模型方法相对简单,但表现形式繁琐;分解成点集的9-交集模型的表现形式符合经典9-交集模型,但计算较为复杂.通过示例比较了两种扩展9-交集模型及经典9-交集模型的表达能力.结果表明,两种扩展交集模型均能准确地表达出复合面状对象各子部分之间的拓扑关系的细节,扩充了9-交集模型的表达能力.

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