DMCA
Advisory Committee: (1998)
BibTeX
@MISC{Timpf98advisorycommittee:,
author = {Sabine Timpf and Univ. -prof Dr and Andrew Frank and Univ. -prof Dr and Markus Stumptner},
title = {Advisory Committee:},
year = {1998}
}
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Abstract
Among the different operations in Geographic Information Systems (GIS), changing scale is crucial for the handling and analysis of multi-scale data. The term multi-scale is used to indicate that there are data of more than one level of detail in the database. Different levels of detail are needed when dealing with spatial data. Current scaling functions blow up and shrink the objects to display or change to a radically different representation of the display. In this research we investigate how to link map objects at different levels of detail that represent the same real-world entity. We observe the behavior of map objects at four levels of detail in eight case studies. We apply an observation method derived from the method of abduction. It relies on careful and controlled observation of phenomena, similar to the method of reverse engineering in computer science. We define four types of map objects to be observed: • a trans-hydro network, that is a combination of the street network, the railroad network, and the hydrographic network,
Keyphrases
advisory committee map object different level street network different operation spatial data case study different representation trans-hydro network real-world entity railroad network reverse engineering observation method hydrographic network geographic information system term multi-scale multi-scale data computer science
