Multi-slope slabs with curves

[Chad Smith]

I'm guessing it's too complex at the moment to be able to use the multi-slope feature of roofs and slabs, in which the sketch contains curves, i.e. arcs, circles, splines.

[muttlieb]

Right. From the help file:


Slabs must be flat and horizontal with straight-edged boundaries.
As a work-around you can use the opening tool with arcs to cut the floor/roof into the shape you want.