| 一种自适应的矢量数据增量更新方法研究 |
| |
| 引用本文： | 张新长,郭泰圣,唐铁.一种自适应的矢量数据增量更新方法研究[J].测绘学报,2012,41(4):613-619. |
| |
| 作者姓名： | 张新长 郭泰圣 唐铁 |
| |
| 作者单位： | 中山大学地理科学与规划学院,广东广州,510275 |
| |
| 摘 要： | 针对GIS增量更新中存在的一致性维护与空间冲突问题,提出一种自适应的矢量数据增量更新方法。以同名对象匹配为切入点,探讨变化对象的检测与增量更新的方式。在综合考虑空间距离,语义相似度及拓扑一致性约束的基础上,提出接边匹配度的计算方法并设计自适应的对象接边算法。同时,介绍矢量数据增量更新中基于约束规则的空间冲突检测与处理方法。并以矢量地形图试验数据验证文中所提出的模型与算法。
|
| 关 键 词： | 自适应 增量更新 数据一致性 空间冲突 |
An Adaptive Method for Incremental Updating of Vector Data |
| |
| ZHANG Xinchang,GUO Taisheng TANG Tie.An Adaptive Method for Incremental Updating of Vector Data[J].Acta Geodaetica et Cartographica Sinica,2012,41(4):613-619. |
| |
| Authors: | ZHANG Xinchang GUO Taisheng TANG Tie |
| |
| Institution: | School of Geography and Planning,Sun Yat-Sen University,Guangzhou 510275,China |
| |
| Abstract: | To maintain data consistency and eliminate the spatial conflicts brought by spatial database updating,an adaptive method for incremental vector data updating is proposed.Based on the matching of correspondent objects,a change-object detection and incremental updating method is discussed.Considering the constraint of spatial distance,semantic similarity and topology consistency,it is proposed a calculated method for edge matching evaluation.An adaptive edge matching strategy is also designed to maintain the consistency of spatial data.The rule-based detection and manipulation of spatial conflicts is also discussed.Topographical data are used to verify the practicality and efficiency of the method. |
| |
| Keywords: | adaptive incremental updating data consistency spatial conflict |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
