Research on Modeling Precision and Standard of 3D Digital City

AbstractResearches and practices on 3D digital city have been widely performed in many cities, since most of them were used in specialized fields, and cannot share resources and inter-operator with other systems completely, it is urgent to develop related standard and criterion as the basic guideline for the construction of the digital city, thus to satisfy varies demands for 3D data. Based on project “Wuhan 3D digital map”, this article discussed and gave good reference on the modeling precision and standard of digital city