I still don't understand; if you build a glass floor, and then proceed to have dwarves live/work BENEATH the glass floor, thus making it a glass ceiling, will they throw up if they have cave sickness? I want to build a skylight for my count's throne room, but if he's just going to throw up every time he enters the room for a meeting, i may as well forget about it...
Actually, i too have a fort thats connected by a large surface area that would see alot of sunlight and it caused alot of my dwarves to get sick, and my soldiers were extremely ineffective since they trained underground, so i built a huge artificial ceiling, many many z levels above this area, and the area just outside my fort where goblins come, so we are in perpetual darkness and its kind of cool but spooky at the same time.
But to answer his question, im pretty certain its just 'inside'. You don't need to dig down underground to get cave acclamated because, as i said, my dwarves roam around topside in a place that WOULD have seen sunlight, but instead is now considered "inside" because of the ceiling i built over it, yet when they go out to collect webs, in the sun, they still throw up. Although now that i think of it, i guess its not a very good basis to judge off of since they do go into caves alot, and just so happen to leave them frequently for other errands.
[ March 24, 2008: Message edited by: ColonelTEE3 ]