机构地区: 中山大学地理科学与规划学院
出 处: 《地理信息世界》 2013年第2期41-44,共4页
摘 要: 结合城市地下管网数据的现状,建立地下管网数据的时空数据结构;针对较少数据量的竣工测量数据和较大数据量的普查数据分别采用了基于要素和基于范围的更新方法,同时建立起数据的历史回溯机制,实现任意时间点数据的查询展示。实实在在解决了地下管网数据的现势性以及历史数据维护问题。 Considering the developing situation, this paper constructs the spatial-temporal data structure of urban underground pipeline data. Object-based updating method is purposed for the relatively small data of completion measurement.Scope-based updating method is for the mass data of surveying census data. This paper also develops historical retrospect mechanism to present data of any time point. Therefore, it provides a solution for the data currency maintenance and historical data management of underground pipeline data.
领 域: [建筑科学] [自动化与计算机技术] [自动化与计算机技术]