Algorithms for Automated Line Generalization in GIS
نویسندگان
چکیده
Geographic Information Systems (ARCGIS-ESRI) have tools to produce cartographical generalizations that are based in spatial transformations which alter the geometrical data and topological representation. The major spatial objects use vector as the basic entities for representation. Vectorial generalization has been well studied and is the most common transformation used in existent systems. The three basic elements for vectorial representation are points, lines and areas and are translated to geographical objects. This article discusses polygonal line simplifying methods explains the experiments and evaluation processes for two algorithms to improve line simplification applied to GIS: an adaptation of Douglas-Peucker algorithm, an area/perimeter quotient, and an adaptation of Wang, algorithm applying arc technical recognition.
منابع مشابه
Dissertation von Martin Galanda
Polygonal subdivisions, i.e. the representation of categorical data in the vector model, are a common data type in GIS applications, in thematic maps, in topographic maps and in digital landscape models. Their cartographic generalization is termed polygon generalization. Cartographic generalization or generalization is one of the basic principles of cartography, namely the legible and comprehen...
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