Question

how to detect overlapping polygons in a single dataset

+7

Which transformer can I use to identify overlapping polygons in a single dataset and show them as the output.

+14

You can use the AreaOnAreaOverlayer.

https://community.safe.com/general-10/fme-form-starter-20721

+44

You could try the AreaOnAreaOverlayer and then a TestFilter to separate out the features that you want afterwards.
https://docs.safe.com/fme/html/FME-Form-Documentation/FME-Transformers/Transformers/areaonareaoverlayer.htm

Rotate monitor to the right to improve translation speed using gravity

+44

You can use the AreaOnAreaOverlayer.

Whoops sorry, your post had not loaded when I typed mine, did not mean to double up the answer.

Rotate monitor to the right to improve translation speed using gravity

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