Grasshopper ELK

[wim (Wim Dekeyser)]

Hi -

@s3885401

How would it be possible for me to extrude these flats to its correct 3D building height?

Are you sure that the OSM file contains building heights for those buildings?
At any rate, the following post shows how to either use available information (building height or number of levels) or use a random height when no such information is available:

Boston OSM Heights

Not the best example, because there is much randomness, but the first one I found on my Computer. [elk_city] As you can see, some numbers have a m in the end. So I needed to remove them. [elk_city_1] Or one Building, had also underground levels. Didn’t needed them, so I removed it. [elk_city_2] And the Buildings where I hadn’t any height, were extruded by random numbers. You can choose the Domain, so it fits to the existing ones. But you Need nearly always to search the text for Errors…

-wim