Procedure for automatic co-update of street data for geographic information system (GIS)

摘要

A new geodatabase schema for network, where two feature class are present, Street Section and Junction, haveing two new columns / properties: Origin and GeoGuid.;A new coded procedure allow to co-update in the time the geodatabase both from new releases of the commercial network, and from the street modification introduced in the street network by the user of the GIS sistem;This allows people moving on the land with a palmtop PC to have a network situation always updated by the user of the GIS system