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+Technical Notes
              Integration of TerraView  3.1.1 with TabWin
Since its version 3.1.1, TerraView  makes available to users features that facilitate the integration and communication of data between TabWin (DATASUS - Information Technology Department of the Ministry of Health) and TerraView .

TabWin users can find a button with TerraView  logo in the maps window, as showed in Figure 1 below. When the button is pressed, users are asked to point to a
TerraLib /TerraView  database which contains maps comparable to the ones observed in TabWin. This database will be loaded by TerraView , which will import the data being used in the TabWin map to an equivalent information layer, as an additional attributes table. In Figure 2, columns CODIGO and POPULACAO came from the table sent by TabWin, and the other columns were existent attributes of the "mic" infolayer in TerraView  database.

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Figure 1: Button for loading TerraView  and transferring data to the equivalent database in TerraView 

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Figure 2: TerraView  window after loading data from TabWin

To benefit from this feature, TabWin users must import with TerraView  the corresponding maps that were exported by TabWin using the Atlas GIS BNA format. Since version 3.5.0, there are detailed instructions about this procedure in the TerraView  help topic "Integration between TabWin and TerraView " .
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              Atlas GIS BNA import format
TerraView  3.1.1 allows importing maps in Atlas GIS BNA ((Boundary File Format) format. BNA files may contain three types of objects (Areas, Lines, and Points) and must have, at least, a field with the objects identification. This import format is mainly provided to allow TabWin users to create maps equivalent to the ones provided by DATASUS. This way, TabWin users can export the base map to BNA format, and then, inside TerraView , import it.

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              Update from version 2.0 to 3.0
The databases generated with TerraView  2.0 can be used in this new version. However, once converted to 3.0, these databases can NO longer be used in the 2.0 version. If you intend to keep using TerraView  2.0, and want to explore TerraView  3.0, MAKE A COPY OF YOUR DATABASE.

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