GIS (Geographic Information System)-Based Applications with a Worldwide Database

摘要

This presentation will deal with difficulties associated with developing GIS-based applications programs capable of being used worldwide, or for a significant portion of the world. Issues discussed will include data format requirements, on- and off-line storage requirements, coordinate and datum transformation problems, and the need to write software which can be easily used by an operator who may not be an expert in Geographic Information System (GIS) operation or in a particular discipline for which the software is based. Alternate solutions to the problems will be presented, and trade-offs involved in the various solutions, with respect to the issues mentioned above, will be discussed. Keywords: Terrain analysis; and DTSS (Digital Topographic Support System). (Author)