| GIS中拓扑和方向关系推理模型 |
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| 引用本文： | 何建华,刘耀林.GIS中拓扑和方向关系推理模型[J].测绘学报,2004,33(2):156-162. |
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| 作者姓名： | 何建华 刘耀林 |
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| 作者单位： | 武汉大学,资源与环境科学学院,湖北,武汉,430079;武汉大学,资源与环境科学学院,湖北,武汉,430079 |
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| 摘 要： | 当今GIS在空间分析、建模和推理方面的能力极其有限,究其原因,现有GIS空间数据表达不直接支持推理运算,空间关系推理模型相互独立且运算复杂,准确性不高。本文在深入研究现有空间拓扑关系和方向关系推理模型的基础上,基于Cobb的空间拓扑关系模型的基本思想,建立了拓扑关系矩阵TopX2×2、TopY2×2和方向关系矩阵Dir3×3并将拓扑和方向关系推理计算统一到空间目标的MBRs(MinimumBoundingRectangles)的比较运算上来,达到了简化推理运算和统一建模实现拓扑和方向关系的联合推理,丰富了空间关系推理的语义,提高了推理的准确性。
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| 关 键 词： | 拓扑关系 方向关系 空间推理 |
| 文章编号： | 1001-1595(2004)02-0156-07 |
An Integrated Model for Topology & Direction Relation Reasoning |
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| HE Jian-hua,LIU Yao-lin.An Integrated Model for Topology & Direction Relation Reasoning[J].Acta Geodaetica et Cartographica Sinica,2004,33(2):156-162. |
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| Authors: | HE Jian-hua LIU Yao-lin |
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| Abstract: | GIS is powerful for data collection and management, but its analysis & reasoning ability is limited. Deeply analyse, we can find that the inconsistence of GIS spatial data representing and reasoning model as well as the independence with each other are the root of evil. The ultimate aim of this paper is to work out an integrated model for topology and direction relation reasoning, so that we can realize the spatial relations reasoning easily and accurately. |
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| Keywords: | topology relation direction relation spatial reasoning |
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