傅仲良, 吴建华. 多比例尺空间数据库更新技术研究[J]. 武汉大学学报 ( 信息科学版), 2007, 32(12): 1115-1118.
引用本文: 傅仲良, 吴建华. 多比例尺空间数据库更新技术研究[J]. 武汉大学学报 ( 信息科学版), 2007, 32(12): 1115-1118.
FU Zhongliang, WU Jianhua. Update Technologies for Multi-scale Spatial Database[J]. Geomatics and Information Science of Wuhan University, 2007, 32(12): 1115-1118.
Citation: FU Zhongliang, WU Jianhua. Update Technologies for Multi-scale Spatial Database[J]. Geomatics and Information Science of Wuhan University, 2007, 32(12): 1115-1118.

多比例尺空间数据库更新技术研究

Update Technologies for Multi-scale Spatial Database

  • 摘要: 提出了基于CHT_EUR空间数据库模型的多比例尺空间数据库更新方案。该方案通过空间要素匹配和属性对比对发生变更的数据进行自动识别,并且能通过基于地理对象构建的关联关系实现多尺度空间数据的联动更新,有效地解决了多比例尺数据不一致的问题。

     

    Abstract: Spatial database updating is a bottleneck in GIS,which needed to be resolved urgently.Some data updating modes and technologies are discussed,and a multi-scale data updating scheme is presented based on CHT_EUR spatial database model.It can automatically and effectively identifies those changed data in updating by some methods such as spatial feature matching,comparing attribute and implement linkage updating of multi-scale spatial data based on linkage-relation which constructed by geographical object,settled the disaccord of multi-scale data.The scheme is significant to maintain the current spatial data and perfect data product system.

     

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