[Qgis-user] Intersect vs extractbylocation

[Alexandre Neto]

Hi Dennis,

The intersects will try to combine the geometries of the two input layers.
In your case, it will always return a point anyway. Also, it will add both
input layer's attributes in the output file.
The Extract by location will just check which points are within the
polygons and present it as an output, hence much faster.

Alexandre Neto

Dennis Burgess via Qgis-user <qgis-user at lists.osgeo.org> escreveu no dia
quarta, 14/09/2022 à(s) 16:20:

> I have a shape file and a list of points..
>
>
> Trying to understand what the difference is between intersect vs
> exteactbylocation .
>
>
>
> Extract by location takes NO TIME, under a min on all of my runs, but
> intersection takes quite a bit of time..  In the end, all I want is what
> lines in the CSV (packaged as GPKG) are within or are contained within the
> Shapefile.
>
>
>
>
>
> *[image: LTI-Full_175px]*
>
>
> *Dennis Burgess, Mikrotik Certified Trainer MTCNA, MTCRE, MTCWE, MTCTCE,
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>
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