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| 地理信息系统中空间对象间拓扑关系的推理 |
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刘亚彬1, 刘大有1
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吉林大学,计算机科学与技术学院,吉林,长春,130023,符号计算与知识工程教育部重点实验室,吉林,长春,130023
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| 摘要: |
| 首先讨论了地理信息系统中空间对象的空间数据模型,然后定性地分析了空间对象点与点、点与线和点与区域之间的拓扑关系,并给出了空间对象拓扑关系的推理算法.最后,将模糊技术与空间对象之间的拓扑关系的推理算法结合起来,使其可以方便地处理地理信息系统中的模糊性和不确定性. |
| 关键词: 空间推理 空间对象 拓扑关系 地理信息系统 模糊技术 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目(69883003);国家863高科技发展计划项目基金资助(863-306-ZB05-01-2);国家教育部博士点基金资助项目 |
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| Reasoning of Topology Spatial Objects in GIS |
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LIU Ya-bin,LIU Da-you
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| Abstract: |
| In this paper, the spatial data models and data structures in geographic information system (GIS) are first discussed. Then the topological relations about point-point, point-line and point-area of spatial objects are qualitatively analyzed. The reasoning algorithms of topological relations of spatial objects are also given. Finally, the fuzzy techniques are applied in reasoning algorithms of topological relations of spatial objects in order to solve fuzziness and uncertainty in the GIS easily. |
| Key words: spatial reasoning spatial object topological relation geographic information system fuzzy techniques |
