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Questions about creating a LOD2 CityGML model for a neighborhood.

  • May 22, 2024
  • 1 reply
  • 59 views

yaxi
Contributor
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Hi
I am currently looking to create a CityGML model of the buildings in a specific area using various spatial data. I have followed this tutorial Point Cloud to 3D Terrain Model with Buildings and obtained an Adobe 3D PDF model of the buildings
But I now want to convert this model into a CityGML LOD2 model. Is this possible?
Since I have just started using FME and am not very familiar with the software, what should my next steps be? Could you provide some useful references? 
Thanks for your advice😊

1 reply

virtualcitymatt
Celebrity
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It’s a bit difficult to create CityGML from a point cloud and a terrain model.

CityGML typically expects proper/simple roof shapes rather than something with might come out of a surface build from a point cloud. 

To help get started with writing out CityGML with FME I would encourage you to check out the FME Hub and have a look at some of the existing worksapce template files here: 

https://hub.safe.com/?page=1&page_size=20&types=templates&order=relevance&query=CityGML

these template workspaces already contain sample data and can be a starting point for a workflow. 

In most cases, however, the 3D data have usually been modelled in another format and the workspace only reflect a conversion of the geometries and semantics into CityGML.

 


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