Geographic vector data bases often are collections of maps, in which elements are grouped in layers (coverages) according to the type of information (roads, buildings, hydrography, settlements, harbours, relief etc.). Layers are connected with each other with the help of the real World coordinates.
These maps usually have attributive information. That means for example, a street is not only a 12.4 cm long line on the screen but there is additional information available on its name, actual width, pavement etc.
Databases are widely used for analysis purposes. With the help of specialized software, like ArcView, we can calculate for example, the shortest and most convenient way from the office to the customer.
Riga 1:10 000
cities and towns of Baltic countries 1:20 000
Latvia 1:100 000
Baltic countries 1:200 000
Baltic countries, Belarus and Kaliningrad region of Russia 1:500 000
Eastern Europe and Northern Europe 1:1 000 000
GIS data bases of the continents and the regions of the world (1:3 000 000 - 1:50 000 000)
Jana Seta Map Publishers has developed and offers following GIS data bases:
In all offered GIS data bases, information is grouped in layers un coverages. Data bases contains basic data layers: hydrography, populated places, administrative territorial division and borders, road and railway network, landuse, and also specific layers with additional information: airports, protected nature territories, notable nature objects and objects of cultural and historical significance etc.
All of these data bases are available for purchase, and not only whole data base but also separate layers, combined layers form different data bases, and parts of data collected by different ciretria: scale, content etc.
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