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        Riga, LV-1009, Latvia
        Tel.: (+371) 67 317 540
        Fax: (+371) 67 317541
      e-mail: kartografi @kartes.lv
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Data bases

Cartographic databases provide a higher level of digital mapping. Most often they 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. The actual length of the street is calculated automatically according to the coordinates.

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 1:200 000
  • Lithuania 1:200 000
  • Baltic countries and Kaliningrad 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 (1:3 500 000 - 1:60 000 000)

    Jana Seta Map Publishers has prepared also GIS data bases of several regions and a few separate territories of Latvia on scale 1:100 000. Thay are developed on the base of aerial photographies and the field survey.

    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.