3D GEOGRAPHICAL INFORMATION SYSTEM AND METHOD FOR GENERATING 3D GEOGRAPHICAL INFORMATION DATA IN 3D GEOGRAPHICAL INFORMATION SYSTEM

摘要

PURPOSE: A 3D geographic information system and a 3D GPS data production method in the system are provided to produce 3D GPS data using 2D GPS data and DEM(Digital Elevation Model). CONSTITUTION: A database(110) sets and stores 2D GPS data and DEM. An absolute coordinate extracting unit(120) extracts 3D absolute coordinates using the 2D GPS data and DEM. A data conversion unit(130) applies attribute information to the 3D absolute coordinates, and converts the 2D GPS data to 3D GPS data. A browser(140) visualizes and edits the converted 3D GPS data to create the final 3D GPS data.