Revit Architecture

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MKEllis
Posts: 228
Registered: ‎03-02-2013
Message 1 of 4 (420 Views)
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How to use host wall thickness in formula ?

420 Views, 3 Replies
12-27-2013 03:22 PM

I'm trying to use a formula in a family that requires the host wall thickness.

 

I've setup an instance reporting parameter (dimensioned to the host wall faces) - which works fine in reporting the correct value.

 

But when I try to use that variable in a formula, I keep getting the error:

 

"Instance Parameters can't be used in Type Parameter formulas."

 

Is there a way of getting the reported dimension as a Type rather than an Instance - or is there another work around ?

 

Thanks

Martin

 

 

you'll need to change the type parameter you're trying to drive to instance.

as the host may vary from instance to instance of the family, you can't have one type vary.

Active Contributor
metisdesigns
Posts: 37
Registered: ‎11-12-2013
Message 2 of 4 (415 Views)

Re: How to use host wall thickness in formula ?

12-27-2013 03:35 PM in reply to: MKEllis
you'll need to change the type parameter you're trying to drive to instance.

as the host may vary from instance to instance of the family, you can't have one type vary.

Mentor
MKEllis
Posts: 228
Registered: ‎03-02-2013
Message 3 of 4 (407 Views)

Re: How to use host wall thickness in formula ?

12-27-2013 04:11 PM in reply to: metisdesigns

Thanks - it's kinda obvious when you say it like that. Sometimes you just need to step away to see things - It's working now.

 

Many thanks,

Martin

 

 

Active Contributor
metisdesigns
Posts: 37
Registered: ‎11-12-2013
Message 4 of 4 (403 Views)

Re: How to use host wall thickness in formula ?

12-27-2013 04:21 PM in reply to: MKEllis
it's the "obvious" ones that really leave a dent in the wall :smileyhappy:
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