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Implement xlink:href into CityGML Writer for Solids

Related products:Integrations
  • August 31, 2017
  • 2 replies
  • 82 views
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In the GML3 spec, you can link to features using xlink:href /references based on GML:ID.

This is currently not available in FME, which means we have to develop our own workaround external to FME to provide those details.

This will enable CityGML features (for example Buildings) to use the surfaces to construct a solid, without replicating the geometries in the file.

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2 replies

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  • grkmus
  • July 10, 2018

That's definitely needed. I am trying to achieve this. Maybe we can write some python script which can run on the fme. Well, I am a bit newbie. I could manage to learn only the basics until now. :)

G
  • grkmus
  • August 4, 2018

Hello again, I wrote some python code for that Xlink issue, this code works for lod3. If you want to use it in spesific LOD just change that part. It basically puts gml_id on polygons and creates xlink attributes on surface members which are defined in Building tag. Feel free to comment about it.

https://github.com/Grkmus/citygml-ifc-python/blob/master/GML_Xlinker.py

 

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