3d solid model of contain empty space

Hi guys,
I want to create 3d solid model. 3d solid model of contain empty space.
“A” model drawing in Autodesk Revit. it solid and contain empty space.
I want to make it in rhino but it couldn’t.
Boolean operation (difference) and surface modelling methot not use.
Is there any methot in rhino or grasshopper solution?

solıd_evren.3dm (700.2 KB)

Hi Hakan -

You can use the NonmanifoldMerge followed by the CreateRegions commands for this. Then delete the object that represents the void.

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Thank you so much Wim Dekeyser