Hi Simon and Nicolas,
Yes, that was our idea, too - to merge two or more lines that share
their start/end vertices.
But unfortunately, this doesn't work for us, because we edit in a very
complex data model and QGIS doesn't preserve feature Ids when merging
features --> all of our DB relations would then fail.
See https://github.com/qgis/QGIS/issues/47629
I asked our commercial support provider to hopefully fix this issue ...
then we could go the "merge route".
Andreas
On 2022-03-04 09:29, Simon Dietmann via Qgis-user wrote:
Hi Andreas,
as a workaround for your problem I would suppose you draw a new line
feature using the tracing function and then merge it with the one you
want to extend.
That should work without any problem.
Simon Dietmann
M.Sc. Physische Geografie
Von: Qgis-user <qgis-user-boun...@lists.osgeo.org> Im Auftrag von
Nicolas Cadieux via Qgis-user
Gesendet: Freitag, 4. März 2022 05:13
An: Andreas Neumann <a.neum...@carto.net>
Cc: QGIS User List <qgis-user@lists.osgeo.org>
Betreff: Re: [Qgis-user] Extending an existing line with the vertex
tool - combination with tracing possible?
Hi,
To my knowledge, when using the vertex tool, you click on the last node
and then, you can extend it once. I think you need to reclick the last
node again if you want to add a new point. I don't do much vectorizing
lately and in the past, used AutoCAD to do it. There must be some other
way of doing it. Maybe there is a shortcut or something like the shift
key we need to use. I would check the user manual to see if there is
an option under the vertex tool. I see that lots of new tools have
been added lately making QGIS a good contender for tracing. I guess
you could just create a new line and then merge both together.
Just my grain of salt...
Nicolas Cadieux
https://gitlab.com/njacadieux
Le 1 mars 2022 à 05:24, Andreas Neumann <a.neum...@carto.net> a écrit
:
Hi,
When I am extending an existing line with the vertex tool (by enabling
the vertex tool and clicking on the small "plus" symbol), can I then
still activate the "tracing" functionality to follow along other
features?
If yes, I haven't found out how - any hints would be appreciated a
lot!
Thanks,
Andreas
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