Study The Methods On City DLG Data Processing And Data Loading

DLG (Digital Line Graphs referred to as DLG) is the most important and most widely used basic geographic data in the digital city,is the main data sources of GIS. DLG preserve the space between the elements of information and related attribute information, it comprehensivly descripte of the surface ground and underground targets. At present the standard before the data warehousing DLG primarily inspectors' artificially, work efficiency relative low, and some quality problems by artificial check it is difficult to identify,so,How effectively will DLG into standard data processing incoming data gradually become the production department the problem faced. DLG incoming data processing and database building process is an important and tedious work, Accelerate and stylized modular check application should become DLG the inevitable trend of incoming data processing.this paper DLG data production process of SuperMap platform, based on the DLG database, simultaneously DLG data processing collate and data storage. and was tested by the data storage based on geographic information about Baotou city, hope to lay the theoretical and practical basis for the to establish of"digital city".