Cartographical Generalization on E-maps
Tatyana Sobchuk
Laboratory of Geoinformatics, Geoecology Institute,
Russian Academy of Sciences, Moscow
RUSSIA
Digital maps on CD and in the Internet sites may be called electronical maps or e-maps. Most of them are very schematic from the point of view of cartography, because of low speed of connecting and low screen resolution. That's why there is the problem to prepare and adapt existing maps for using in Internet, i.e. e-maps making using the processes of
cartographical generalization. The issue of automated map generalization examined in amount of recent researches, and today it can be stated that it is solved for point, line and partly for area objects. In common this process includes following steps: segmentation - for lines, classification - for points; simplification, smoothing - for lines; displacement and exaggeration for both. Evidently, more preferable for e-maps are data simplification and exaggeration.
In report it is intended to discuss contemporary state of the problem and methodology of cartographical generalization on e-maps.