On Tue, Oct 25, 2011 at 9:48 PM, Matej Mailing <[email protected]> wrote: > This is almost it! :-) > > Now we get a lot of polygons - is it possible to combine all the polygons > into one object (so that there are no "borders" inside it)? > > Thanks, > Matej > > 2011/10/25 Albin Blaschka <[email protected]> >> >> >> 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 >> >> >> -- >> | Albin Blaschka, Mag.rer.nat. >> | Etrichstrasse 26, A-5020 Salzburg >> | * www.albinblaschka.info * www.thinkanimal.info * >> | - It's hard to live in the mountains, hard but not hopeless! >> _______________________________________________ >> Qgis-user mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-user > > > _______________________________________________ > Qgis-user mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-user > >
Hi Matej, Sure it is possible. You can use dissolve tool from Vector -> geoprosessing tools -> dissolve. And in the dialog select dissolve all. At least in the qgis 1.7.1 the dissolve tool is included in the buffer tool. In the buffer dialog you can check a dissolve option to dissolve all the buffers. Hopefully this helps. -Lauri _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
