| 基于Oracle Spatial的空间线线拓扑关系判断的实现 |
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| 引用本文： | 王礼江,岳国森,程卫兴.基于Oracle Spatial的空间线线拓扑关系判断的实现[J].测绘学报,2006,35(1):77-82. |
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| 作者姓名： | 王礼江 岳国森 程卫兴 |
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| 作者单位： | 中南大学,测绘与国土信息工程系,湖南,长沙,410083;佛山市城市规划勘测设计研究院,广东,佛山,528000;佛山市城市规划勘测设计研究院,广东,佛山,528000;广州市番禺区城镇规划设计室,广东,广州,511400 |
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| 摘 要： | 在GIS中,空间物体间的拓扑关系是基本的空间关系之一,直接利用ORACLE SPATIAL提供的简单的空间关系查询操作算子,对九交模型所描述的任意两2维空间的不自相交的线目标间的拓扑关系的判断设计算法,并进行试验验证,实现两线目标间的33种空间拓扑关系的判断。基于ORACLE SPATIAL的线/线目标间空间拓扑关系判断的实现必将推动基于ORACLE SPATIAL的GIS系统的查询、分析和数据更新的研究进展。
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| 关 键 词： | 空间拓扑关系 九交模型 对象关系型数据库 |
| 文章编号： | 1001-1595（2006）01-0077-06 |
| 收稿时间： | 2004-12-30 |
| 修稿时间： | 2004-12-302005-07-29 |
The Realization of Differentiating Spatial Topological Relations between Lines Based on Oracle Spatial |
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| WANG Li-jiang,YUE Guo-sen,CHENG Wei-xing.The Realization of Differentiating Spatial Topological Relations between Lines Based on Oracle Spatial[J].Acta Geodaetica et Cartographica Sinica,2006,35(1):77-82. |
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| Authors: | WANG Li-jiang YUE Guo-sen CHENG Wei-xing |
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| Institution: | 1. Department of Geamatics, Central South University, Changsha 410083, China;2, Foshan Urban Planning Design and Surveying Research Institute, Foshan 528000, China; 3. Panyu Urban Planning Design Institute, Guangzhou 511400, China |
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| Abstract: | The formalization and judgment of spatial topological relations plays important roles in modeling spatial data,spatial query,spatial analysis,spatial reasoning,updating spatial data.The paper introduces 9-intersection model and then according to its characteristics in computational model and the studies on the Oracle Spatial data including their models,storages,indexes and queries,the deficiencies of spatial relation operating of Oracle Spatial in differentiating binary topological relation by 9-intersection model are referred.Aiming at the deficiencies,the paper gives countermeasures and computational methods are designed. |
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| Keywords: | spatial topological relations 9-intersection model object-relation database |
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