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Question

Generate TIN with proper Breaklines

  • December 2, 2020
  • 2 replies
  • 187 views

sigtill
Supporter
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I am trying to create a TIN-model with FME using the TINGenerator. Picture below shows (red) whats generated with FME and another software (blue).

 

As can be seen the breaklines does not get handled well. Is there any way to tweak the data so it can handle breaklines better? I have tried using the following transformers:

  • Densifier
  • Generalizer
  • PointCloudCombiner

However it does not seem to handle breaklines very well. Breaklines shown on GREEN line in the image below

 

 breaklinesimage

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2 replies

caracadrian
Contributor
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  • 571 replies
  • December 2, 2020

Can you post some sample data? I never got results like this except when using CAD data that is actually 2D.

Try this if inputting CAD data into your workspace, check the Read Polylines as 2.5D in your Reader parameters.CAD 2.5DAlso, FME doesn't like using areas as brakelines so check if your "green" lines are open or closed.


sigtill
Supporter
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  • Author
  • Supporter
  • 956 replies
  • December 3, 2020

Can you post some sample data? I never got results like this except when using CAD data that is actually 2D.

Try this if inputting CAD data into your workspace, check the Read Polylines as 2.5D in your Reader parameters.CAD 2.5DAlso, FME doesn't like using areas as brakelines so check if your "green" lines are open or closed.

Hi @caracadrian​ . Unfortunately I can not post any FFS or data for the project.

  • The data is 3D lines
  • No areas only lines

3dlines