| 3D-GIS中方向关系定性推理规律研究 |
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| 引用本文： | 刘新,李成名,刘文宝.3D-GIS中方向关系定性推理规律研究[J].测绘科学,2009,34(2). |
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| 作者姓名： | 刘新 李成名 刘文宝 |
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| 作者单位： | 1. 中国测绘科学研究院,北京,100039
2. 山东科技大学科学与工程学院,山东,青岛,266510 |
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| 基金项目： | 国家自然科学基金，国家科技支撑计划，数字区域地理空间框架建设示范项目 |
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| 摘 要： | GIS中的方向关系描述一个物体与另一个物体的相对方位位置。方向关系的定性推理是研究方向关系的一个重要方面,方向关系定性推理的规律性研究是研究方向关系的提升。本文提出了X-Y方向关系和Z方向关系,根据方向关系的定义,用代数法详细研究了X-Y方向关系的推理规律和Z方向关系的推理规律,3D方向关系的推理规律是X-Y方向关系的推理规律和Z方向关系的推理规律的复合。
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| 关 键 词： | 3维空间 方向关系 X-Y方向关系 Z方向关系 定性推理 |
Qualitative direction relation reasoning laws in 3D-GIS |
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| LIU Xin,LI Cheng-ming,LIU Wen-bao.Qualitative direction relation reasoning laws in 3D-GIS[J].Science of Surveying and Mapping,2009,34(2). |
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| Authors: | LIU Xin LI Cheng-ming LIU Wen-bao |
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| Abstract: | The direction relation is used to describe the relative orientation position between objects in GIS. The qualitative direction relation reasoning is an important issue in the study of direction relation. Laws of qualitative direction relation reasoning between direction relations are important to study the qualitative direction relations reasoning. X-Y direction relation decided by X-Y coordinate and Z direction relation decided by Z coordinate were put forward with the projection method when a tetrahedron is known as the referenced entity. Laws in X-Y direction relation reasoning and Z direction relation reasoning are respectively studied in the paper in detailed. The definition method and algebra method are used to study laws in X-Y direction relation reasoning and laws in Z direction relation reasoning. Laws in qualitative direction relations reasoning in 3D space can be get through composition of laws in X-Y direction relation reasoning and laws in Z direction relation reasoning. |
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| Keywords: | 3-dimensional space direction relation X-Y direction relation Z direction relation qualitative direction relation reasoning |
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