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Forums >> Revit Building >> Technical Support >> Floor Hosted Families on a Sloped Floor
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Joined: Mon, Mar 20, 2006
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I've searched around for the answer to this question, but only came across one of my own posts where it was brought up tangentially to the topic. Actually, rereading my post makes me wonder why I wrote what I did in that thread. But, no time for re(vit)grets, here goes: AR08: We are given better control of floor sloping. I'm using it to create a radially sloping floor with single-sloped aisles of differing slopes, landings, etc. It is about two dozen spot elevations and a bunch of level-lines. Because the rows are arcing and expand radially (chairs don't align as you go back) I would have to cut a section at a representative chair in each row (40ish rows) each time I adjust the layout to properly adjust the vertical position along the Revit generated slope. I would like to drop a chair into a floor-hosted (or face-hosted) template and have it adjust to the floor level at it's location automatically, but it doesn't seem that Revit is up to the task. Everything floats at the associated level. What am I missing? Any ideas that don't involve me building a topofloor with sitechairs?
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you could try arraying the chair setting the 1st chair at the highest point on the floor and the last chair at the lowest point on the floor. the chair should follow the path from 1st to last Just an idea, Hope it helps Have a Great Day 
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Good to see this getting the bump-up. I was sad that it didn't get any replies originally. To address ThatGuy's idea, that is exactly what I do in most situations. You are right and it works well. The reason it doesn't work in the situation that I described in the OP is that the rows are enlarging as they go back so that there are not consistent, arrayable lines of chairs front to back. Right now I array and ungroup the end-chair and then use those height corrected chairs to array each one's same-level row of chairs. This works but is tedious, especially during reworks. If the chairs could height correct themselves, it would be SO much easier.
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if your floor is a ramp (or a stair for that matter) you can make your seats as ballusters make a railing and then draw the seating rows out as railings. then you can set host to the ramp (or stair) and they will follow the ramp (or stair) . also it is easy to offset an arc with railings and reworks are a snap. if you want an example file let me know.
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That's an intriguing idea...I like it. I'll probably go with something like that for preliminary layouts, but not as a fix for my current situation of the final version of any situation for two reasons. 1. Floor geometry too complicated to build as a series of ramps without spending WAY too much time. (Won't need to use ramps though if I don't need the chairs to level themselves...like flat floors or prelim studies.) 2. Balusters won't schedule into my furniture schedule. I'd build an entire building out of rails if I could...so I love the idea and will definitely try it out sometime...just not for this situation. Thanks for the input.
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1. if you have flat levels use stairs 2. yes they can.
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1. Flat/riserless stairs as a floor? If it's flat floor, couldn't you use an unhosted railing without having to use stairs? 2. How do you get balusters to schedule with furniture? I don't see them in the Multi-Category schedule or a Railing Schedule. I don't necessarily need them to schedule WITH other furniture because auditorium seating is specialized enough that I could justify a separate schedule...I just can't figure out how.
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1. if its hosted and there are edits made then they follow the "floor" but yea you don't really need it. 2. it looks like this feature may have been fixed. dang, foiled by updates again.
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Edited on: Tue, Jun 3, 2008 at 5:26:29 PM
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A screenshot of what your floor would be helpful as I'm a little confused as to what it actually looks like... I would create my chair, nest it into a face based family and lock it to the face of the geometry. If this results in the chairs not being vertical then I'd add an instance parameter for rotation so I could counter act this. Again, it would be easier to give you an exact solution with a screenshot.
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FACE-BASED!! holy crap i feel stupid. it's one of those times that you ask yourself why you didn't think of that, but in the way where you actually sit for a while and try to figure out the answer. If I get a change I'll post an image of my floor. It's impressive in a "why the heck would you do that?" and "is that even buildable?" way.
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