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Question

Removing Bridges between Polygons

  • August 15, 2019
  • 1 reply
  • 24 views
M

Hi all,

I have just been clipping some datasets in FME and I have noticed that it has left some sliver bridges connecting polygons. Is there a way to remove them?

I tried using a snapper with various tolerances and using the sliver remover.

Attached is a polygon with one of the bridges

Thanks

FME 2019.1.0.0

 

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1 reply

takashi
Evangelist
  • takashiEvangelist
  • August 15, 2019

Hi @mattenvsys, this workflow might help you.

  1. Chopper (Mode: By Vertex, Maximum Vertices: 2): Split boundary of the polygon into individual segments.
  2. Intersector or LineOnLineOverlayre (Tolerance: 1e-2): Insert vertices into the ends of the "bridge".
  3. AreaBuilder: Create polygons from the intersected lines.

Appropriate tolerance depends on the actual data conditions. 1e-2 worked for the sample data you posted, but may not work for other polygons.

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