[GRASS-user] Network Topology Reconstruction

[M S]

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 <ahaupt at gmail.com> 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
>
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