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Discussion: trying to add a category parameter

  1. #1
    New Member
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    mai 2011
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    trying to add a category parameter

    Hi, I'm trying to create a structural foundation tag with elevation, that references the top of footing instead of bottom of footing.

    I can create the parameter but it shows as a ? instead of an elevation value, perhaps I am choosing the incorrect "type of parameter"?

    I tried to look for the elevation at bottom parameter, but could not find it. A seperate but likely important consideration is the shared parameter file for RST 2012. I am still struggling with this concept.

    thanks
    bluedog

  2. #2
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    "Mark Twain"
    Avatar de mdradvies
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    You'll need to use a custom shared parameter cause the OOTB isn't useable (as far as I know).
    But then it should work. What did you do exactly? Care to share your family so we can take a look?

    Quick how-to on Shared Parameters here...

  3. #3
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    Thanks, attached you'll find the tag. All I am really trying to do is have the tag reference the top of the footing instead of the bottom.

    The OOTB tag refernces the bottom.

    I created the "elevation at the top parameter and attached it to the label, but all that shows up is a "?".

    thanks
    Fichiers attachés Fichiers attachés

  4. #4
    Forum Co-Founder Avatar de Alfredo Medina
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    I don't think this is possible in a BIM-like way. Only by manual input. The closest you can get is to show the elevation at bottom, and the thickness of the footing. Let the reader of the drawing do the math, if necessary.
    Miniatures attachées Miniatures attachées struc-found-tag.jpg  
    Dernière modification par Alfredo Medina ; 22/09/2011 à 14h56. Motif: Updated image

  5. #5
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    What I usually do is tag the footing and then use the spot elevation to identify the top of footing height. This is our standard.

    That works but it takes to long.

    Revit has one that does the bottom (see attached). I thought it would be a simple procedure to make a new category parameter that read the top of footing instead bottom of footing.

    If I knew what the "type of parameter" (number, length, etc) it should be, it might work. Or maybe it's not that simple.

    thanks
    Fichiers attachés Fichiers attachés

  6. #6
    Forum Co-Founder Avatar de Alfredo Medina
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    Citation Envoyé par Bluedog Voir le message
    ...If I knew what the "type of parameter" (number, length, etc) it should be, it might work. Or maybe it's not that simple.
    No, it's not that simple. You can know the name of the reference level, but Revit does not let you get the elevation value of that level, and you cannot tag a calculated value such as level - thickness. It can be done with manual input, but that's not the idea, because then you are in risk or showing wrong information in the tags if something changes in regards to the elevation of the footings.

  7. #7
    Senior Member Avatar de alexo4141
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    I know that it doesn't fit with your office standards but you should try to make a schedule where you can make a calculated parameter : El. Top = El. Bottom + Thickness. [Saw something about thickness issues, maybe you are more safe with eLEl. Bottom + (Volume/(Width*Length)]
    Regroup in Mark and it replaces your tag and is you get more space for others informations...

    Just my thoughts
    Alex

  8. #8

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