Creating a polygon based on the limits of area geometries

Hello, have you tried using the HullAccumulator? https://docs.safe.com/fme/html/FME-Form-Documentation/FME-Transformers/Transformers/hullaccumulator.htm

Thanks for the idea , It gives a better result than the BoundingBoxAccumulator  , but still very far from what I am looking for .

No worries, have you tried setting it to concave?

Yes, I’ve tried to set it to concave , with different alpha values .but the result is still not good.

Hi @yagami9, I think you can :

1. Assign an ID to each polygon.
2. Transform the polygons into lines.
3. Calculate the orientation of each line.
4. Group lines with the same orientation.
5. Extend the lines.
6. Do a spatial join, grouping by elements with the same orientation but not from the same polygon.
7. Remove unnecessary elements (outside the polygons).
8. Select overlapping lines and combine them.
9. Recreate polygons from the new and original lines.
10. Merge all polygons into one and remove any holes if present.

I have tested it, I am joining the screenshot of the workflow and the result I have obtained.

@koulsoum Thanks for the response ! The screenshots of your workflow aren’t visible.

Could you please re-send them .

@koulsoum Thanks a lot for your time and help !

Could you please share the .fmw file of that workflow ? and the input if that is possible .

I tried to recreate it , but only a few features pass the Tester (_related_suppliers>0 ) , the rest have the value _related_suppliers= 0 .  .

@koulsoum Thanks a lot !!! It works