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Creating a Level Head Family with a +/- Parameter

4 ANTWORTEN 4
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MaceNovak
463 Aufrufe, 4 Antworten

Creating a Level Head Family with a +/- Parameter

Hey Everyone,

 

I have been trying to create a Relative Elevation Level Head that has a prefix of + or - depending on whether the elevation is greater than, equal to, or less than 0'.  Typically we have 100' as "zero" so I created a formula label in the Level Head family that takes the elevation and substracts 100' which worked fine.  I want to now create a visibility parameter that either shows a + or - prefix label depending on the elevation but running into issues when trying to use a yes/no formula. A simple solution would be to duplicate the family and have one be + and the other - but would prefer to have just one family.  I've tried several formulas but not sure if they aren't working because the true "Elevation" parameter is a shared and therefore a project parameter can't link to it. Is this possible?

 

Attached are some images below to see what I've been trying.  One problem might be that there is already a project parameter within the family called "Elevation" that doesn't have any value associated that I can find, so do I need to create another "Relative Elevation" parameter that somehow ties to the shared "Elevation" parameter?  Having the main yes/no formula under the "Minus" formula made the most sense to me so I don't have to deal with a >=0 which I know Revit doesn't like.  My Boolean expression should work but I could be wrong too so any help is greatly appreciated.

Relative Elevation Label.jpg

Relative Elevation Tag.jpg

Relative Elevation Formula.jpg

Relative Elevation Symbol.jpg

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Nachricht 2 von 5
barthbradley
als Antwort auf: MaceNovak

Can't you get there through another Calculated Value Label?

 

PlusMinus1.png

Nachricht 3 von 5
ToanDN
als Antwort auf: MaceNovak

ToanDN_0-1665184043786.png

 

This formula is wrong because 1 > 0 and 0 < 1 is the same expression.  And on top of that you don't need them, change it to just:  = Elevation > 0

 

Nachricht 4 von 5
ToanDN
als Antwort auf: MaceNovak


@MaceNovak wrote:

Hey Everyone,

 

I have been trying to create a Relative Elevation Level Head that has a prefix of + or - depending on whether the elevation is greater than, equal to, or less than 0'.  Typically we have 100' as "zero" 


Can you simply have Survey Point @-100' and Project Base Point @ 0' so that you can have Level Types read either 0 or 100'?

 

And format the Units.

 

ToanDN_0-1665184718649.png

 

ToanDN_1-1665184738108.png

 

 

 

 

Nachricht 5 von 5
barthbradley
als Antwort auf: MaceNovak

You know, I read your post a few times, and I'm still unclear what you are trying to do. Must be Friday. 

 

Is this just about plus or minus sign? If so, why? Plus/Minus is automatically included.    

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