[Qgis-user] raster area in vector

Johannes Kröger (WhereGroup) johannes.kroeger at wheregroup.com
Fri Dec 3 00:25:25 PST 2021


Hi Eddison,

the term you are looking for is "zonal statistics" aka "give me raster 
cell statistics for the zones of my polygon layer".

First make an actual polygonal layer with your buffer areas and then use 
the "Zonal statistics" tool. In the "Statistics to calculate" option 
choose "Majority". That should give you the category value of the 
dominant cells per zone.

Best do a detailed check calculation of some example areas *by hand* so 
you know it is exactly what you want.

Cheers
Hannes

Am 03.12.21 um 00:02 schrieb Eddison Araya:
>
> image.png
>
> Hello, I have two maps:
>
> 1 raster
> 1 vector
>
> I want to have a map 3 where it tells me the following:
>
> In the vector buffer area, which category of the raster is the most 
> according to the area.
>
> I hope I have made sense of it.
>
> Thanks
>
> Eddison
>
>
>
> _______________________________________________
> Qgis-user mailing list
> Qgis-user at lists.osgeo.org
> List info: https://lists.osgeo.org/mailman/listinfo/qgis-user
> Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user

-- 
Johannes Kröger / GIS-Entwickler/-Berater
WhereGroup GmbH
Eifelstraße 7
53119 Bonn
Germany

Tel: +49 (0)228 / 90 90 38 - 36
Fax: +49 (0)228 / 90 90 38 - 11

johannes.kroeger at wheregroup.com
www.wheregroup.com
Geschäftsführer:
Olaf Knopp, Peter Stamm
Amtsgericht Bonn, HRB 9885
-------------------------------

********************************************
Where2B Konferenz 2021
Online am 16. Dezember 2021
https://where2b-conference.com/
********************************************

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20211203/0e9a6e08/attachment-0001.html>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: image.png
Type: image/png
Size: 12583 bytes
Desc: not available
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20211203/0e9a6e08/attachment-0001.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_0xBF7B268A77C202D5.asc
Type: application/pgp-keys
Size: 2471 bytes
Desc: OpenPGP public key
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20211203/0e9a6e08/attachment-0001.key>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: OpenPGP_signature
Type: application/pgp-signature
Size: 665 bytes
Desc: OpenPGP digital signature
URL: <http://lists.osgeo.org/pipermail/qgis-user/attachments/20211203/0e9a6e08/attachment-0001.sig>


More information about the Qgis-user mailing list