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PointOnAreaOverlayer transformer in FME: Why do some attributes generate no output? (yellow arrows)


I'm new to FME and impressed by what can be done with it. However, I got stuck regarding some details. I have a PointOnAreaOverlayer transformer and I wonder why the Point output port let's me use all attributes, whereas the Area output port generates no output for some attributes that I need to use. What is the solution here? Thank you!

Screenshot 2022-08-27 233448

Best answer by david_r

Are you referring to the yellow triangles on the Area output? They only indicate that a corresponding attribute does not exist on the connected writer. They may still contain values, try inspecting them.

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2 replies

david_r
Evangelist
  • Best Answer
  • August 29, 2022

Are you referring to the yellow triangles on the Area output? They only indicate that a corresponding attribute does not exist on the connected writer. They may still contain values, try inspecting them.


  • Author
  • August 29, 2022
david_r wrote:

Are you referring to the yellow triangles on the Area output? They only indicate that a corresponding attribute does not exist on the connected writer. They may still contain values, try inspecting them.

Thank you very much, David. That was it! I was always searching for a missing setting at the Transformer side and completely overlooked that I copied a Writer with manual "User Attributes" settings. In this case, I could change that back to "automatic".


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