And for your first question that is just the way Archicad does circular walls.
The first point you pick to determine the wall circumference will determine where the node is - it doesn't have to be at 0°, 90°, 180°, etc.
You can reposition the nodes (i.e. stretch them around the circumference) so that you can have more than a 180° semi circle.
However you can not stretch it to a full 360° so there will always be a small gap you have to fill with another wall.
So stretch one half to be a very short wall and stretch the other half around to fill the gap. Position the nodes somewhere between your windows and doors.
I think this is easier than rotating.
I have no idea why we can have a 360° circular line but not a wall - something to do with the 3D component of it perhaps?
Barry.
One of the forum moderators.
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