Void visibility

[drenL5229]

Hi,

I have a problem I don't know how to solve. I am using a void to cut an angle in a line based profile. I want to have my void not visible if the angle is 0 as it would not have to cut anything and I don't want any errors in my family when I do set it to 0.

It is an instance based parameter. I wanted to set it off with an IF statement but I am having errors for "circular..".

Basically, how to turn off the void when I set the angle at 0.

I appreciate your time.

[curtisridenour]

You should use a yes no visibility parameter. Also you should set a parameter to the angle that has a formulat that never goes to 0 so it does not snap.

_Angle = if(Angle=0,1,Angle)

[drenL5229]

Actually I want to have the ability to set it at 0 as well, snap, as you said.

So, if(Angle=0, Void (off), Void)

I hope this helps.

[curtisridenour]

Post your family here. I can take a look. 

probably more like this though.

Void = if(Angle =0, 1=0, 1=1)

[mhiserZFHXS]

You'll need a parameter for you to actually control the angle, and then a parameter that is linked to your voids angle. For the parameter controlling the void, you'll need an equation like :

If (Angle=0, 45, Angle)

This makes sure your angle parameter doesn't break.

Then, for your visibility parameter, have an equation that says:

Angle>0

This will hide your void if the angle is zero, since the voids angle will actually be 45, or whatever number you decide.

[drenL5229]

Find it attached below.

Thank you!

[curtisridenour]

see below and attached.

[curtisridenour]

Angle>0 is a more elegant solution.

[mhiserZFHXS]

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@curtisridenour wrote:

see below and attached.

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You don't need the if-statement for the visibility parameter. It just needs to be:

Thickened slab angle > 0

[ToanDN · Accepted solution]

You don't need any extra parameter or formula.

[drenL5229]

@ToanDN thank you!

It looks obvious now, so basically put it outside the reference line so that the extrusion has always 4 sides and we don't have to work with triangles, which I did and it made everything more difficult to figure.

Thanks!

[ToanDN]

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@drenL5229 wrote:

It looks obvious now, so basically put it outside the reference line so that the extrusion has always 4 sides and we don't have to work with triangles, which I did and it made everything more difficult to figure.

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Correct.  This is the method I used in older Revit versions, when we didn't have the luxury of the Cut geometry parameter for Void.