The research and realization of the object-oriented features of urban spatial databases dynamically updated mechanism
Wang Lei · Engineering of Surveying and Mapping · 2009
Long-standing urban spatial database construction of the conflict and slow are conducted in-depth.On the basis of the research space-time the previous data update methods,the Urban Planning actual production features,the introduction of time-dimensional urban spatial database,event-driven thinking,and based on the object to the characteristics of data dynamically updated model and dynamic update mechanism,we solve data management and production data with data updates between the needs and to achieve different historical periods version of the database output problems.The experimental results show that:the urban spatial database system can meet the needs of dynamic update.