[Qgis-user] how to count overlays of objects

[Ujaval Gandhi]

If your goal is to have a heatmap of polygon overlaps - it's actually
very simple. Use the Blending Mode to 'Multiply' for 'Features' and the layer
will be rendered with darker colors at the regions of overlaps


See the screenshot https://i.imgur.com/fcdB7h6.png
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Ujaval Gandhi
Spatial Thoughts
www.spatialthoughts.com
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[data:image/gif;base64,R0lGODlhAQABAIAAAP///wAAACwAAAAAAQABAAACAkQBADs=3D]
On Fri, Aug 18, 2023 at 7:45 PM Daniela Friebel via QGIS-User
<qgis-user at lists.osgeo.org> wrote:


> Dear Community
> 
>  
> 
> I have a vectorlayer with many objects (polygons) that overlap. Now I want to
> create a new layer, where each overlap results in a separate object, which has
> an attribute with the number of overlaps.
> 
> I have already tried various things, but have not yet found a solution. With
> the "union" tool I can generate the overlaps as objects, but I cannot count
> the number of overlaps. 
> 
> I am grateful for any help and hints.
> 
>  
> 
> (I would like to count the overlaps to eventually create a heatmap. If there
> is a completely different way of doing this, I would also appreciate a tip).
> 
>  
> 
> Kind regards
> 
> Daniela
> 
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