| 地图数据库中基本图形对象的拓扑关系及其编辑 |
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| 引用本文： | 王峰,杨树强,陈火旺.地图数据库中基本图形对象的拓扑关系及其编辑[J].国防科技大学学报,1996,18(4):120-123. |
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| 作者姓名： | 王峰 杨树强 陈火旺 |
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| 作者单位： | 国防科技大学计算机系 |
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| 摘 要： | 地图数据库是地理信息系统（ＧＩＳ）的核心。本文提出面向对象地图数据库的逻辑数据模型和数据结构，分析了地图的基本图形对象（结点和弧段）间的拓扑关系，围绕地图数据库的拓扑一致性，讨论了各种编辑操作的实现步骤。
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| 关 键 词： | 地理信息系统，地图数据库，拓扑关系。 |
| 收稿时间： | 1996/3/11 0:00:00 |
Topologic Relationships and Editing of Elementary Graphic Objects in Object-oriented Geographical Database |
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| Wang Feng,Yang Shuqiang and Chen Huowang.Topologic Relationships and Editing of Elementary Graphic Objects in Object-oriented Geographical Database[J].Journal of National University of Defense Technology,1996,18(4):120-123. |
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| Authors: | Wang Feng Yang Shuqiang and Chen Huowang |
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| Abstract: | This article proposes the logic data model of object-oriented geographic database. The topologic relationships between the elementary graphic object are analyzed in detail.and the editing operations to be performed on them are identified and analyzed. These editing operations ensure that topologic consistency in the database is preserved. |
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| Keywords: | GIS geographic database systems topologic relationships |
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