- area calculation doesn't seem to work
You may try to change sizes in the WallTrace of the Example. Even 'Mark to recompute' and hitting F5 doesn't change the area.
The Example should show almost the same area for both Rooms - ArchSpace subtraction doesn't seem to work
The ArchSpace 'WallCladding' is created by the same Sketch like the inner WallLayer.
Selecting the WallLayer then ArchSpace ''WallCladding'' followed by Arch remove tool (- Symbol) does nothing, even not adding WallLayer to Subtractions.
Doubleclick on ArchSpace ''WallCladding', selecting WallLayer, selecting Subtractions followed by pressing Remove, adds WallLayer to Subtractions but the ArchSpace keeps the same Size.
OS: "NAME=Gentoo"
Word size of OS: 32-bit
Word size of FreeCAD: 32-bit
Version: 0.17.11423 (Git)
Build type: Debug
Branch: (HEAD detached at f2127c371)
Hash: f2127c3712372548d6486ebaa1674b892bdb9efa
Python version: 2.7.12
Qt version: 4.8.7
Coin version: 3.1.3
OCC version: 7.1.0