On 2011-10-25 13:52, Matej Mailing wrote: > 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 :-)
Ah, is that what you want :-) That's called a 'Buffer' in gis terms: - load your cable layer in qgis - go to Vector menu and in Geoprocessing tools, choose Buffer - there you can choose for example 20 meter, this will create a 20 meter buffer == polygon around your lines - by creating a second buffer of say 50 meter, and giving that another color, I think you will have what you want Regards, Richard Duivenvoorde _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user