[Qgis-user] Double line Feature

[Albin Blaschka]

Am 25.10.2011 13:52, schrieb Matej Mailing:
> Basically we need this to define some sort of "protected area" (for
> example, 30 cm in both sides from the cable) along some
> telecommunication network cables (mainly optical) and therefore I don't
> think only the representation would be sufficient. Probably some plugin
> that would create polygon with a centralized line that we are "snapping
> to" and with defined area (width) would be even better than just two
> lines, because this way we could define some color of fill of that
> closed "part" around cable in our projects for example. Hopefully I
> explained it enough clearly, if you need more information, please let me
> know :-)

Hello!

That sounds like you need a buffer :-)
In QGIS, you find this functionality under Vector (fTools plugin) -> 
Geoprocessing (or similar, I have just the german version at hand at the 
moment...)

Albin


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