When I tried both methods, the interests takes about 20x times longer than the extract. The number of rows output are the same. So my assumption is that they would be the exact same just one faster. Was just making sure that I did not miss something in it..
[LTI-Full_175px] Dennis Burgess, Mikrotik Certified Trainer MTCNA, MTCRE, MTCWE, MTCTCE, MTCINE, MTCSE, HE IPv6 Sage, Cambium ePMP Certified Author of "Learn RouterOS- Second Edition” Link Technologies, Inc -- Mikrotik & WISP Support Services Office: 314-735-0270 Website: http://www.linktechs.net<http://www.linktechs.net/> Need to Automate MikroTik Backups: https://cloud.linktechs.net Create Wireless Coverage’s with www.towercoverage.com From: Alexandre Neto <senhor.n...@gmail.com> Sent: Wednesday, September 14, 2022 10:47 AM To: Dennis Burgess <dmburg...@linktechs.net> Cc: QGIS User <qgis-user@lists.osgeo.org> Subject: Re: [Qgis-user] Intersect vs extractbylocation 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@lists.osgeo.org<mailto:qgis-user@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. [LTI-Full_175px] Dennis Burgess, Mikrotik Certified Trainer MTCNA, MTCRE, MTCWE, MTCTCE, MTCINE, MTCSE, HE IPv6 Sage, Cambium ePMP Certified Author of "Learn RouterOS- Second Edition” Link Technologies, Inc -- Mikrotik & WISP Support Services Office: 314-735-0270 Website: http://www.linktechs.net<http://www.linktechs.net/> Need to Automate MikroTik Backups: https://cloud.linktechs.net Create Wireless Coverage’s with www.towercoverage.com<http://www.towercoverage.com> _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org<mailto:Qgis-user@lists.osgeo.org> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
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