A STUDY ON MEASURES FOR CONSTRUCTING GAME ENGINE-BASED 3D WEB GIS DISPLAY SYSTEM

ABSTRACT: The recent construction of geographic information system (GIS) is developed in the 3D direction. 3D analysis and development of GIS are supported by XDworld, JoyMap and other domestic commercial engines, as well as by diverse overseas commercial engines. Also, open-source 3D display engines, including World Wind provided by NASA, are increasingly used for the development of GIS. Open-source-based GIS engines are cheap, and offer high freedom of development, giving them an advantage, while they are difficult to manage after development and require the developer itself to shoot troubles, giving them a disadvantage. Also, commercial GIS development engines are convenient to manage after development, and possible problems can be resolved in association with the developers of the engines, while they are expensive and the development scope is limited by the developers of engines. The most important thing for the development of system is the freedom of development and follow-up management of the system, and as such, conventional engines cannot possibly cover all these requirements. To overcome these limitations, game engine-based GIS development is recently in the spot, because game engines are cheap and offer high freedom of development. Thus, this study examines existing game engine-linked GIS development cases and presents the method of implementing the game engine-based GIS. 3D GI-linked game engines can be used to simulate a wealth of information, and to employ multi-layered mash-up technology, etc