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Question

Check the direction of wall

  • December 11, 2023
  • 1 reply
  • 50 views
kumarkannan1980
Participant
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Hi,

I am facing an issue where wall was not rendered properly by the FME inspector as it has direction issue. I tried "SurfaceNormalExtractor" but I didn't get any information out of the transformer. Please find the screenshot. Could you please help me in this regard.

 

Same issue was posted 6 years back https://community.safe.com/s/question/0D54Q000080hfTrSAI/citygml-generation

 

Wall not render properly in FME inspector

renditionDownload (2) 

renditionDownload (1) 

 

1 reply

daveatsafe
Safer
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  • daveatsafeSafer
  • Safer
  • 1637 replies
  • January 22, 2024

Hi @kumarkannan1980​,

Please try using the PlanarityFilter transformer to extract the surface normals. In the transformer properties, set Surface Normal Output - Expose Surface Normal to Yes.

For the top faces of the walls, check that _surfaceNormalZ is near to 1.0, and that the faces have Front appearances set.


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