Data bases
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.
Jana Seta Map Publishers has developed and offers following GIS data bases:
Riga 1:10 000
Other cities and towns of Latvia 1:20 000
Vilnius 1:20 000
Other cities and towns of Lithuania 1:20 000
Tallinn 1:20 000
Latvia 1:100 000 (in preparation, covers ~80% of the territory)
Latvia 1:200 000
Lithuania 1:200 000
Baltic countries, Kaliningrad and Pleskava region 1:400 000
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)
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 e.t.c.
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.
Call us 67317540 or write to kartes@kartes.lv
New world geographic atlas in CD format 
