topic Re: Visibility Parameter in Revit Architecture Forum

Visibility Parameter

MS_jkimc65 — Mon, 03 May 2021 16:43:03 GMT

I am trying to have visibility parameter selected based on Parameter Value equaling the value entered? I set up parameter - Type of Const and several visibility parameters. If I enter IA for the "Type of Const", I then want the IA visibility parameter visible and all others not visible.

Re: Visibility Parameter

barthbradley — Mon, 03 May 2021 17:00:51 GMT

@MS_jkimc65 wrote:
If I enter IA for the "Type of Const", I then want the IA visibility parameter visible and all others not visible.

All others would "=Not(IA)" then. No?

Revit Formulas for "everyday" usage (revitforum.org)

Re: Visibility Parameter

MS_jkimc65 — Mon, 03 May 2021 16:58:07 GMT

I feel you are vague in your response, I don't follow what you mean by . . .

All others would "=Not(IA)" then. No?

Re: Visibility Parameter

barthbradley — Mon, 03 May 2021 17:16:20 GMT

"No?" was a question back to you. "Not(IA)" in the Formula for "IB" would uncheck "IB" if "IA" was checked. Get it?

Did you see the link I posted? It talks about this and other formulas you could employ, such as "OR" and "AND".

Re: Visibility Parameter

cbcarch — Mon, 03 May 2021 17:24:22 GMT

You might also consider using Filters for this.

Re: Visibility Parameter

David_W_Koch — Mon, 03 May 2021 17:25:54 GMT

Revit cannot compare text values, so you will not be able to set up a formula like:

if(Type of Const = "1A", 1=1, 1=0)

If you can live with using an integer parameter (called, for example's sake, ConstType), in which you assign meaning to each value (eg, 1 is "IA", 2 is "IB", 3 is "IIA", 4 is "IIB", etc.), then you write a formula for each Yes/No parameter similar to:

if(ConstType = 1, 1=1, 1=0)

You can save your users from having to also enter the text value by assigning a formula to the Type of Const parameter:

if(ConstType = 1, "IA", if(ConstType = 2, "IIB", if(ConstType = 3, "IIA", if(ConstType = 4, "IIB", if(ConstType = 5, "IIIA", if(ConstType = 6, "IIIB", if(ConstType = 7, "IVHTA", if(ConstType = 8, "VA", if(ConstType = 9, "VB", "Undefined Construction Type")))))))))

Re: Visibility Parameter

David_W_Koch — Mon, 03 May 2021 17:43:40 GMT

Here is proof of concept family & image. (It is an empty Generic Model done in Revit 2020.)

Re: Visibility Parameter

MS_jkimc65 — Mon, 03 May 2021 18:12:03 GMT

David Koch,

Thanks for the feedback, I was stuck with the parameter text value that revit can't compare you spoke of and that is where I was confused. I knew I needed a formula for each of the visibility parameters, I was on the right track somewhat, that makes sense to create a parameter to assign an integer for an input/value. I appreciate your response and thanks again!