Loki, I may just not fully understand what the problem is but I think I may have figured out a solution to the the floating sofa issue. Actually the picture of the sofa you provided in your last entry on the subject gave me a hint.
But let me take a step back from this issue for a moment and digress heavily.
A couple weeks ago She Dragon dragged me to the Boston Museum of Science to see the new Star Wars ™ exibhits. That was fine and all (though the Millenium Falcon ride was sort of a rip-off), then afterward we toured the rest of the museum which She hadn’t seen yet.
Somewhere near the electricity demonstration that they had a computer lab set up with different programs for kids: games, simulations, and the like. And among these programs we stumbled over a little something to win my heart: GollyGee Blocks.
Golly Gee Blocks is basically a very simple CAD (Computer Aided Drafting) program for kids. Though not very useful for precise design it renders a variety of three dimensional shapes quickly and intuitively. In this capacity it’s also a cheap substitute CAD program for those like myself who are too cheap to buy a real CAD program/never took a CAD class/wouldn’t know what CAD program to even look for.
She Dragon promptly bought me a copy for Christmas, and in her typical flair for gift giving couldn’t wait until the holiday to disperse it. Thus I can provide a couple 3D diagrams to help render a few thoughts on the subject of sofas.
Here are two different perspectives of the same scene:
The Knight standing at the table (standing inside a chair) represents Jonathan while the winged girl represents Cecily. The flock of birds represents Cecily’s path as she runs around the back of the room, past the window, in through the door, throws the mail on the table, and continues on through the room and to her final destination behind the sofa where she ducks down to hide in that little pocket between the arm of the sofa and the corner of the room.
Alternately, for a more acrobatic maneuver Cecily could clamber onto the sofa cushions and sort of jump or tumble over the arm of the chair like so:
Either way though she ends up in the pocket between the sofa and the wall. Conveniently, while “hidden” from the door and window in this location Cecily would be clearly visable to the audience (camera) and in a position where she’s facing across the room toward Jonathan at the table as she peeks over the sofa arm.
Although I’m not sure exactly what space you’d be working with here and how the perspectives would be. Or maybe I just misunderstood your conundrum altogether.