Spatial database design and realization under supermap environment

According to the technical features and designing principles of spatial database,to design the spatial database with the system of GIS highway route decision-supporting.Database adapts relational data model,and use Supermap Objects providing SDB Data-engine to construct and manage the database.The data is from existing terrain map,for which a special data transferring mode is set up,and to transfer DXF terrain map files to Dataset in Supermap Objects.In order to perfect attribute database,to provide human-computer interactive interface,to mend attribute chart structure,to edit attribute figure of the spatial element object,to provide a quick and convenient function of correction and editing attribute database for users,the construction and management of spatial database are carried out successfully,which provides the data support for the following routs decision-making.