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Build polygon from others polygons

  • December 1, 2018
  • 4 replies
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mr_fme
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I have a workspace that I am attaching here . Its function is to cut the trails using the first network limit, now besides making this cut, I also need to cut the trails using park, but always creating polygons with the remaining cut parts.

 

P.S. all input file are DWG

 

 

 

 

In this workspace if I use only network works perfectly (see image), but if I enter the park layer, the following error below appears:

 

 

INDEX FAILURE - requested predicate not implemented

 

 

Why does it happen? Can you help me?

Thank´s

Best answer by takashi

Seemingly a single polygon for each location, but almost same two polygons overlap each other in fact. I think it's the reason why invalid geometries were generated.

This workspace example might help you: example.fmwt (FME 2018.1.0.3)

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4 replies

takashi
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  • takashiCelebrity
  • Best Answer
  • December 1, 2018

Seemingly a single polygon for each location, but almost same two polygons overlap each other in fact. I think it's the reason why invalid geometries were generated.

This workspace example might help you: example.fmwt (FME 2018.1.0.3)

Why not inspect features with Visual/Data Preview and Feature/Record Information before writing them into a destination dataset?
mr_fme
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  • mr_fmeEnthusiast
  • Author
  • Enthusiast
  • December 3, 2018

Seemingly a single polygon for each location, but almost same two polygons overlap each other in fact. I think it's the reason why invalid geometries were generated.

This workspace example might help you: example.fmwt (FME 2018.1.0.3)

I'm very grateful for your attention.

 

You always help me a lot.

 

Thank you very much

mr_fme
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  • mr_fmeEnthusiast
  • Author
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  • December 3, 2018

@takashi,

 

One question, because you used the buffer with -0.5 in your workspace?

 

Thank´s

takashi
Celebrity
  • takashiCelebrity
  • December 4, 2018

@takashi,

 

One question, because you used the buffer with -0.5 in your workspace?

 

Thank´s

You could understand why the negative buffering was required, if you removed the Bufferer and run the workspace ;-)

Why not inspect features with Visual/Data Preview and Feature/Record Information before writing them into a destination dataset?

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