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Digitising

GIS DigitiserDigitising Table

Digitising: In GIS this has a more precise meaning than in other disciplines. It usually refers to extracting coordinates from secondary sources such as maps to create vector data.

 


7.3.1 Digitising a mapsheet
Here the following documentation check-lists should be consulted each time a mapsheet is incorporated into the overall GIS database:
Maps and Plans (3.6.1)
The Vector data model (3.2.1)
Digitising (3.6.1.4) ...

The set contains vector digitising of the ONC 1:1M map series. It is not very useful for terrain modelling on other than a regional scale, and then only in areas of reasonable relief as the contours - digitised in feet - are never closer then 250ft, ...

DATA CAPTURE
The processing of converting data into digital form by DIGITISING, scanning, or direct recording of real-world phenomena.

Direct transformations are also used to match vector data layers that don't fit exactly by stretching or rubber sheeting them over the most accurate data layer. Moreover, affine transformations are used in map digitising for the registration of a ...

The Symbian UIQ version is a new venture. In theory, it's quite possible to open the application out in the same way as the Psion one, but this will depend on the support I get in terms of registrations and practical help with digitising.

See also: Information, GIS, Geographic, Map, Database

GIS DigitiserDigitising Table

 
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