Hi Tomas,
I have not found an open source tool to do this, but I have done this on
numerous occasions in a scriptable GIS toolkit (proprietry Linux based).
My methodology is not fool proof, depending on the details at the land
parcel level. If there are narrow servitudes (road widenings etc) then
it is difficult to programmatically snap onto the correct line (if their
attributes don't differentiate between them).
If you come up with an open-source solution, then please let us all know.
If not, then contact me off list to see if I can help you.
Good luck and kind regards,
Zoltan
On 2014/04/08 16:56, trenco wrote:
Hello,
I have a task to edit large polylines which are mostly following parcel
bordes.
I have to correct places where is a difference between polyline and parcel
borders.
1. I am looking for a tool for snapping one polyline to other polylines
within some tolerance - e.g 1 meter. I have tried GRASS tool v.clean, but
there is no chance to set layer to be edited and layer to be used for
snapping.
2. Other option is to create new polyline by semiautomatic digitization -
tool would automaticaly trace parcel borders (and draw new polyline) and
user have to choose manualy on every intersection which way it should
continue. Similar tool is TraceDigitizing, I have tried it, but it is not
suitable for this purpose - it snaps also to other points nearby. Do you
know about other tool?
I am looking forward to your hints and advice...
Thanks
Tomas
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Zoltan Szecsei PrGISc [PGP0031]
Geograph (Pty) Ltd.
GIS and Photogrammetric Services
P.O. Box 7, Muizenberg 7950, South Africa.
Mobile: +27-83-6004028
Fax: +27-86-6115323 www.geograph.co.za
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