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Hi,

 

we have some PoylgonZ geometries with multipe polygons per building. For each polygon we have different heights.

Now we are creating building models in citygml with citygml_lod_name = lod1Solid. This is working already with this workflow:

imageBut now we have for each solid one building element. Then I thought on the transformer aggregate to aggregate the solids for each building (by gmlid).

But then I have MultiSolids which I can´t write to CityGML (lod1Solid).

 

How can I create only one Solid for each building?

Or do I have to use lod1MultiSurface?

Assuming you are after something like this?

imageHave you looked at the custom transformer SolidDissover?

Yeah, either dissolve into one Building as @ebygomm​ suggested OR if you want to keep the Information from both features you can create BuildingParts instead.

 

I've attached an example showing both cases

Assuming you are after something like this?

imageHave you looked at the custom transformer SolidDissover?

Ah thanks for your hint! That should be the transformer I need.

But I got an error message: "invalid geometry".

All features are solids according to "geometry filter".

 

invalid geometry:

image.png

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