[Qgis-user] Extract nodes where lines are crossing other lines

[Michael Gieding]

Hello Piet,

you wrote that your layer is "MultiLineStringZ". Maybe one of this (MultiLine or 2.5d) could be a problem
for the algorithm? So I would convert it to single lines and/or drop the "Z" and give it a new try.
If you have PostgreSQL it would guess it's a oneliner to copy the converted data to a new table.
Don't know in the moment which tools in QGIS are for this task, sorry.

Maybe this helps.


Kind regards,

Michael Gieding

________________________________________
Von: Qgis-user <qgis-user-bounces at lists.osgeo.org> im Auftrag von Andrea Giudiceandrea <andreaerdna at libero.it>
Gesendet: Mittwoch, 5. Mai 2021 12:49
An: qgis-user at lists.osgeo.org
Betreff: Re: [Qgis-user] Extract nodes where lines are crossing other lines

APM wrote
> I try to use the "Vector Intersection tool", which is demands an Input
> and Output-Layer.
> It extracted some nodes, but not all.

Hi Piet,
it's not clear to me what exactly the tool you are using is.

Anyway I think you need to use the "Line intersections" tool. You'll find it
in the Processing toolbox or in the Vector->Analysis Tools menu.

See
https://docs.qgis.org/testing/en/docs/user_manual/processing_algs/qgis/vectoroverlay.html#line-intersections
for more details.

Regards.

Andrea



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