I have a shapefile containing buildings represented as polygons (basically the area of the buildings).
In the attribute table there is a field where the elevation of every building is stored (every building/polygon as a different elevation). Elevations are stored as decimal numbers.
What I am trying to do, is to convert this 2D shapefile in a 3D shapefile using the elevations stored in the "z" field of the shapefile.
With ArcGis it is possible with the tool
Feature to 3D by attribute
I cannot find anything similar in QGIS.
I tried "save as" and then include "z dimension" but it does not prompt to choose a field where elevations are stored.
I also tried the
v.extrude Grass command, but none of the field in the attribute table are shown to select from as height field.
Is it possible with QGIS/Grass to do this?
My final goal is to obtain buildings as 3D objects.