It turns out that v.clean actually did modify my set of vectors, but the display module did not show the updates. When I export the vector layer to svg the changes are visible.
So when I click the "Redraw all layers" button it doesn't show the updates. I'm guessing I'm doing something wrong. Any ideas? On Nov 8, 2007 8:38 PM, M S <[EMAIL PROTECTED]> wrote: > v.clean has various parameters. Did you try increasing the threshold > for the snapping? I'd try in relatively small increments and observe > the results, because having a snapping threshold too high will > collapse features you dont want collapsed. > > > Mark > > On 11/8/07, Andre Hauptfleisch <[EMAIL PROTECTED]> wrote: > > Good day, > > > > I'm busy working on road extraction from QuickBird imagery. I've managed > to > > get my centrelines into a network of vectors (thanks to Grass!), but I > would > > like to run a topology reconstruction tool of sorts. > > > > I've tried the v.clean component, but had little effect. I suppose my > > branches and gaps are to big for them to be pruned and connected. > > > > Does anyone know of a component, or external tool that could complete my > > vector network? > > > > I've various papers on the topic, but unfortunately I don't have enough > time > > implement and experiment with these at this stage. > > > > Any hints? Ideas? > > > > Regards, > > Andre > > > > _______________________________________________ > > grassuser mailing list > > grassuser@grass.itc.it > > http://grass.itc.it/mailman/listinfo/grassuser > > > -- Groete, Andre Hauptfleisch M: 082 5722 469 F: 086 687 1106 E: [EMAIL PROTECTED]
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