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.<br><br>So when I click the "Redraw all layers" button it doesn't show the updates.
<br><br>I'm guessing I'm doing something wrong. Any ideas?<br><br><br><div class="gmail_quote">On Nov 8, 2007 8:38 PM, M S <<a href="mailto:mseibel@gmail.com">mseibel@gmail.com</a>> wrote:<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
v.clean has various parameters. Did you try increasing the threshold<br>for the snapping? I'd try in relatively small increments and observe<br>the results, because having a snapping threshold too high will<br>collapse features you dont want collapsed.
<br><br><br>Mark<br><div><div></div><div class="Wj3C7c"><br>On 11/8/07, Andre Hauptfleisch <<a href="mailto:ahaupt@gmail.com">ahaupt@gmail.com</a>> wrote:<br>> Good day,<br>><br>> I'm busy working on road extraction from QuickBird imagery. I've managed to
<br>> get my centrelines into a network of vectors (thanks to Grass!), but I would<br>> like to run a topology reconstruction tool of sorts.<br>><br>> I've tried the v.clean component, but had little effect. I suppose my
<br>> branches and gaps are to big for them to be pruned and connected.<br>><br>> Does anyone know of a component, or external tool that could complete my<br>> vector network?<br>><br>> I've various papers on the topic, but unfortunately I don't have enough time
<br>> implement and experiment with these at this stage.<br>><br>> Any hints? Ideas?<br>><br>> Regards,<br>> Andre<br>><br></div></div>> _______________________________________________<br>> grassuser mailing list
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</div><br><br clear="all"><br>-- <br>Groete,<br>Andre Hauptfleisch<br><br>M: 082 5722 469<br>F: 086 687 1106<br>E: <a href="mailto:ahaupt@gmail.com">ahaupt@gmail.com</a>