I am building an asset for City Skylines. This will be a station building with curved end walls (like a Church Apse) and a slightly domed roof.
I have built the basic structure out of a cube and 2 half cylinders with a bit of manual editing to remove redundant faces.
However I am stuck as to how to turn the currently flat roof into a domed structure. I could I guess take a sphere and edit this down to the shape I want, but I wonder if there is a quicker way to turn a flat surface into a domed one.
There is an answer here, Creating a curved surface but sadly I do not know enough about blender in order to understand the procedure.