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I've got one polygon layer containing a lot of polygons (Layer 1 - red polygons) and a second layer with one polygon (Layer 2 - green area).

Now I want to select all polygons from Layer 1 which intersect/lie within the green polygon from Layer 2. I DON'T want to have a new TEMP layer containing the result of intersection - I rather want to have the polygons from layer 1 selected (or marked ... or whatever is possible) in order to assign a property to the affected polygons ....

In other words: I want to assign to all affected red polygons the property: "Lies (partyl) within green area" ...

How to do this within QGIS?

How to select all red polygons which intersect green area?

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Use Select By Location in Vector - Research tools :

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Change Geometric predicate to Intersect if you want all that also fall partly within.

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    Thanks - exactly what I was looking for. Have looked over processing toolbox, but wasn't able to figure out, that this is the tool I was looking for
    – hoppfrosch
    Jul 6 at 9:33

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