Hello Abi,
good hint. Especially if you have large datasets one should better use static
processes instead
of the dynamic overlay functions.
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Klaus Affeldt
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Hello List, Hello Bruno and Klaus -
(Long time lurker, first time poster)
Easy way to get the area of intersecting polygons is to do the "union" from the
vector drop down menu.
Make sure there is something in the attribute table that helps you know which
layer is which.
Then you get a layer whi
[Qgis-user] Calculate intersecting area of two layers in a
> virtual field. Context of @geometry in overlay_intersects()
> Message-ID: <5bcb1461d75f470bb86c03fc07b2c...@ansperger.de>
> Content-Type: text/plain; charset="iso-8859-1"
>
> Hello Bruno,
>
Hello Bruno,
try it the other way around:
coalesce(
area(
intersection(
@geometry,
collect_geometries(
overlay_intersects(
'forest',
@geometry
)
)
)
),
0
)
In addition you can use the inner part in the geometry generator.
So yo
Dear list
Great, how powerful expressions are in QGIS!
I have two polygon layers, one with parcels and one with forests. In a virtual
field of the layer parcels I'm trying to calculate the area covered with
forest. I can sum the area of intersecting forests in a virtual field with the
follwing
