Removing short lines with one side "disconnected"???

[incanus]

Hi,
I'm trying to vectorize a map of streets, but after running r.thin and r.to.vect i get this (the aspect is the same befor r.to.vect):



Now I want to remove the shorter lines keeping the principals. I've tried with v.generalize with remove_small, but the central lines are a lot of small lines and they are removed too.

Is any way to remove only the short areas with one side "disconnected" or tu join the segments of the principal lines?

thanx!

[achim]

maybe
v.clean input=wtrhhrt output=bewtbt tool=rmdangle thresh=999
could help? Maybe serveral times with different threshs.

Achim

incanus schrieb:

> Hi,
> I'm trying to vectorize a map of streets, but after running r.thin and
> r.to.vect i get this (the aspect is the same befor r.to.vect):
>
> http://n2.nabble.com/file/n3741976/grassLineas.png 
>
> Now I want to remove the shorter lines keeping the principals. I've tried
> with v.generalize with remove_small, but the central lines are a lot of
> small lines and they are removed too.
>
> Is any way to remove only the short areas with one side "disconnected" or tu
> join the segments of the principal lines?
>
> thanx!

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[incanus]

wow!!!
thats it:



thanx!!!

:D

achim wrote:

maybe
v.clean input=wtrhhrt output=bewtbt tool=rmdangle thresh=999
could help? Maybe serveral times with different threshs.

Achim

incanus schrieb:
> Hi,
> I'm trying to vectorize a map of streets, but after running r.thin and
> r.to.vect i get this (the aspect is the same befor r.to.vect):
>
> http://n2.nabble.com/file/n3741976/grassLineas.png 
>
> Now I want to remove the shorter lines keeping the principals. I've tried
> with v.generalize with remove_small, but the central lines are a lot of
> small lines and they are removed too.
>
> Is any way to remove only the short areas with one side "disconnected" or tu
> join the segments of the principal lines?
>
> thanx!
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