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Thread: Visibility parameter and nested family: bug?

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    French Moderator jbenoit44's Avatar
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    Question Visibility parameter and nested family: bug?

    Hi all,

    I have encounter an issue with a shoring equipment family we work on in my office. I won't share it here (you may understand I can't) but:

    it has 3 levels of nested elements (site category), and the problem is in the last one when we want to apply a visibility parameter to a nested (second level) component; it simply doesn't work. the element is not grayed in the family editor, and is visible when loading in the project.
    we tried it on 2 laptops, same result.
    the only way we found to solve it was to apply a visibilty parameter in the second level nested element, and track it in the final family. this way it works.

    Are we missing something? is this a normal behavior? first time for us BTW.... Thanks.

  2. #2
    Moderator
    "Mark Twain"
    mdradvies's Avatar
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    Is it possible to put in a "dummy" family for testing? Strip out all sensitive matters and replace with some random solids.

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    Forum Co-Founder Alfredo Medina's Avatar
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    Quote Originally Posted by jbenoit44 View Post
    ...
    Are we missing something? is this a normal behavior? first time for us BTW.... Thanks.
    That is the normal behaviour. You did the right thing, tying the object to a visibility parameter in the second level, then tying that parameter to another one in the last level.

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    French Moderator jbenoit44's Avatar
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    thanks for the answer Alfredo. any idea why it is like that? software limitation?

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    Forum Co-Founder Alfredo Medina's Avatar
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    No, it's not a limitation. Imagine this situation: the family that is nested at the second level has 2 extrusions. In the final family, you just want to hide one of the extrusions of the family that is at the second level. Then, having the ability to use individual parameters tells Revit what to hide and what not at the end. But those instructions (such as visibility parameters) have to carried until the host. The final host family is the one that Revit "reads" in the project. Any other instructions not carried out up to the last level are left behind, not "read" at the end. Oops, I hope it makes sense.

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