期刊名称：Ovidius University Annals: Economic Sciences Series
电子版ISSN：2393-3127
出版年度：2010
卷号：10
期号：2
语种：English
出版社：Ovidius University Press
摘要：Geographic information represents,within the European Policy for Geographic Information a complex part of information society which changes continously and which has a wide range of applicability. This can be groupped into two categories: spatial,geographic information and descriptive,qualitative information. These two types of data can be integrated within the same information management system by creating a Geographic Informational System. The terrestrial surface can be represented starting from a series of measurements to determine the position of characteristic points after which these points shall be projected on a plane surface depending on how large the surface is. The position of these points is determined from other points the position of which is well known. These points form a an infrastructure which is called geodezic network. The multitude of georeferentiate points form an image defining the structure of a map. In order to realize this map with the highest degree of accuracy and veracity,the immages aquired through various aquisition methodes are subject to more sophisticated techniques for modelling and processing.
