3D MAP DISTRIBUTION SERVER DEVICE, CLIENT TERMINAL DEVICE, AND 3D MAP DISTRIBUTION SYSTEM

摘要

A three-dimensional map distribution server device 1 stores shape data for a plurality of structures drawn on a ground to generate a three-dimensional map image, and, in the first place, transmits to a client PC 4 a list which includes shape data for a plurality of structures in a district and has position information of the district or of the structures. The client PC 4 selects shape data required for the display based on the position information in the list, and transmits a transmission request for the selected shape data to the three-dimensional map distribution server device 1. When receiving the request, the three-dimensional map distribution server device 1 responds and transmits to the client PC 4 the requested shape data.