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Forums >> Revit Structure >> Technical Support >> Changing model constraints from one level to another

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Wed, Aug 12, 2015 at 12:25:37 PM | Changing model constraints from one level to another

#1

uros19


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Joined: Sun, Jul 3, 2011
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Hi people,

I'm often going through this process of changing level constraints to the model. Usually it comes when modelling the roof...

So the question is: is there a way to assaign all the constrains of one level, to another one???

For example: usually when starting the project I assign the levels +/-... start working with them. But when assigning assemblies to floors or usually the roof, I make one family for the structural part of the floor/roof, and other families for the finish floor/roof, so I can have one floor/roof structural, and than have finish floors that change by rooms. It can happen that the structural floor remains constrained to the level, but now I would like to change and make the finish floor constrained to the level. So i need to make a new level constrained to the finish floor, and erase the old one... Makes a lot of troubles because walls, windows, ceiling and other stuff remain constrained to the level I want to erase. So, is there a way to move all the constrains from one level to a new one, so the model would stay the same or would move to the new level? I imagine it something like selecting one level and than giving a command "interchange" to another level...

 

 


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Wed, Aug 12, 2015 at 12:33:43 PM | Changing model constraints from one level to another

#2

WWHub


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Joined: Tue, May 16, 2006
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Sorry - no such command.  You would have to pick same types of objects and manually reset them.

 

Not sure what you mean by "when assigning assemblies to floors or usually the roof..." .  This sounds like a process problem using the incorrect plan when modeling. 

 

Are you creating everything from a 3D view?   That might work well in sketchup but is ineffecient in Revit.  Plan levels are associated with newly created items except when you change that reference.  You can do that but your asking for the problems you are having.


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Wed, Aug 12, 2015 at 12:47:55 PM | Changing model constraints from one level to another

#3

uros19


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What I meant is that when I start modelling I put some levels at +/- some height. So I start the model connecting objects to those levels, but I still don't know how the assemblies of walls, floors and roof are going to look like. So I don't know the thickness of the floors and the roof. But I need a precise floor to ceiling dimension. So usually when it comes to the roof, I need to place it at a height that is defined by the floor beneath it. But I can't move the level roof because exterior walls o other stuff are connected. So what happends is that I get a level roof that doesn't correspond to the finish roof level, but gets somewhere in the middle.... The way around is to just make a new level roof at the roof finish floor and in all views hide the old one and leave the new one... But it would be nice to have the possibility to switch constrains from one level to another to all objects without changing it one by one, which is impossible in bigger models


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Wed, Aug 12, 2015 at 3:07:56 PM | Changing model constraints from one level to another

#4

WWHub


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Joined: Tue, May 16, 2006
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A few thoughts that should help you:

  • Did you know that you can create levels without any associated views?   These will show up with black instead of blue targets in elevations and sections.  These levels can be hidden in views individually or by filters or by using worksets.  These in essance are work planes that can host items.  Typically engineers use them for items like "TOP OF STEEL" etc.  Regular architectural levels are typically top of floor (no matter what the floor thickness is).
  • Did you know that items like walls can be attached to the bottom of floors/roof above.  So maybe the wall is set to level 2 going up to level 3 and you attach it to the bottom of the level 3 floor.  NO MATTER WHAT thickness level floor 3 becomes, the top of the wall will adjust with it.

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Wed, Aug 12, 2015 at 3:29:36 PM | Changing model constraints from one level to another

#5

uros19


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Joined: Sun, Jul 3, 2011
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Yes, I knew them both. I'm not a novice here, I just wanted to know if there is a "hidden" feauture I didn't know by now and find it would be usefull. Thanks anyway for the suggestions


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