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There is an analysis about the potential of solar areas in Germany. When I finished the project I realised, that there is one polygon with a huge value for its area. By looking closer it gets clear that this one geometry includes nearly 100 "splinters" all over the study area.

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What I want to do is to cut off and remove all superfluous parts/splinters. It would be best if its possible to sort out by area of the splinters.

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    Select the polygon, Multipart to singleparts (Only selected features), in the new layer calculate the area of each feature, delete those smaller than a certain value.
    – Babel
    Commented Apr 30, 2021 at 8:32
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    Or add a calculated field to the layer showing the area of each feature. Then set the layer query to only show features with a chosen minimum area. That way, you don't lose the splinters if you make a mistake. Just change the query.
    – wingnut
    Commented Apr 30, 2021 at 8:40

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