[Qgis-user] Qgis atlas print composer : aggregate (bigger overlap)

[Stefan Giese (WhereGroup)]

Hi,

you can use overlay functions instead, there you can sort the size of 
intersection and take the biggest one:

/overlay_intersects(layer:='//PARCEL_LAYER//', expression:="parcel_id", 
sort_by_intersection_size:='des')[0]/

hope this helps
Stefan

Am 12.06.2023 um 14:04 schrieb celati Laurent via QGIS-User:
> Good afternoon,
> With Qgis 3.30, In the composer interface, I generate an atlas.
> My iteration layer is a polygonal layer (platforms). I added a text 
> element to automatically get by spatial intersection the 'parcel_id' 
> attribute present in another polygonal layer. I use the aggregate 
> function for this task :
>
> /  aggregate(
> 'LAYER':="PARCEL_LAYER',aggregate:='concatenate',
>   expression:="parcel_id",
> filter:=intersects(geometry(@parent), $geometry))/
>
> It works. But the result shows values of all the intersections. I 
> would like it limit to the result of the biggest intersection. Would 
> you know how to do it?
>
> Thanks a lot.
>
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-- 
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