| 引用本文: | 李军,景宁,孙茂印.一种基于耦合的三维拓扑结构表示方法.[J].国防科技大学学报,2002,24(3):40-44.[点击复制] |
| LI Jun,JING Ning,SUN Maoyin.Representation of 3D Topological Structure Based on Couple[J].Journal of National University of Defense Technology,2002,24(3):40-44[点击复制] |
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| 一种基于耦合的三维拓扑结构表示方法 |
| 李军, 景宁, 孙茂印 |
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(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 基于一定的空间划分，提出了一种基于耦合的三维拓扑结构表示方法。这种三维拓扑结构基于耦合(oriented face, arc)定义了四种基本的拓扑关系。基于这些基本的拓扑关系，讨论了四种重要的拓扑查询的实现算法，从而证明了这种拓扑结构的价值：不依赖几何嵌入，快速推导出各种拓扑关系，尤其是与体对象相关的三维拓扑关系。 |
| 关键词: 三维拓扑结构 三维地理信息系统 耦合 |
| DOI： |
| 投稿日期：2001-12-07 |
| 基金项目:国家863高技术资助项目(863-306-ZD09-02-4) |
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| Representation of 3D Topological Structure Based on Couple |
| LI Jun, JING Ning, SUN Maoyin |
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(College of Electronic Science and Engineering，National Univ. of Defense Technology，Changsha 410073,China)
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| Abstract: |
| A representation method for 3D topological structure based on couple is proposed in a certain divided space. The structure defines four basic topological relationships on the couple (oriented face, arc).Through these basic relationships, the implementation algorithms for four important topological query are discussed. Thus it is shown that the 3D topological can deduce all kinds of topological relationships, especially topological relationships between 3D body objects, independent of geometry embedding. |
| Keywords: 3D topological structure 3D GIS couple |
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