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Question

read dgn mesh objects

  • Feb 21, 2014 4:54 PM UTC
  • 5 replies
  • 110 views

owen
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Hello, 

 

 

Does anyone know how to read mesh objects from a dgn? I need to create solids from these features, but the meshes all seem to come in as 2d lines, nowhere near the rest of the 3d lines where they should be extruded.

 

 

Would be grateful for any assistance with this!

 

 

Thanks, 

 

 

Owen
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5 replies

kathyross
Participant
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  • Participant
  • Feb 25, 2014 2:14 AM UTC
I believe this article may assist: http://fmepedia.safe.com/articles/Error_Unexpected_Behavior/AutoCAD-DWG-Which-format-should-I-use

owen
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  • Author
  • Feb 25, 2014 9:18 AM UTC
Hi Kathy,

 

 

Thanks for the reply, but the file I have is a microstation dgn file.

 

 

Owen

Hi Owen,

 

 

Having the same problem, as I understand it meshes from dgns are of element type 105, whch is not supported in FME (2013 SP3 not sure if later versions do).  Do you get this lessage in the log?

 

 

[code]

 

Found element of type '105', which is unrecognized or unsupported. Skipping element

 

[/code]

 

 

The only solution we are working on at the moment is to simplify the mesh in the dgn first before loading into FME, I'll let you know if we come up with a working solution!

owen
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  • Author
  • Mar 13, 2014 3:20 PM UTC
Hi Daniel,

 

 

 

Sadly not - I contacted safe directly they confirmed the microstation reader doensnt support meshes.

 

 

 

The only workaround was to export to a dwg, which seemed to convert them to solids but could at least read them. This is limited though as I wanted to write back to dgn retaining, tags, etc and the writer doesnt support non-extruded solids.

 

 

 

Let me know if you have any joy!

 

 

 

Owen

fmelizard
Safer
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  • Safer
  • Feb 21, 2018 2:31 PM UTC
Hi Folks,

 

@gabriel_hirsch created an Idea for this enhancement so please feel free to upvote

 

https://knowledge.safe.com/idea/64197/support-mesh-element-types-element-type-105-in-mic.html