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Thread: atan entered as a fraction value i Revit

  1. #1
    Member tuekappel's Avatar
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    atan entered as a fraction value i Revit

    I don't know if this is common knowledge, but........-Did y'all know that you can enter an atan value as is in a slope parameter?

    Example:
    I need my roof to have a slope of 5%, or 1/20.
    The correct value in degrees is 2,86º, but i don't need to calculate it, i can just enter this formula:
    =1/20
    -and Revit will calculate the inverse tangens of that fraction!
    Works with decimal frations as well, in this case "=0.05" OR just plain =5%


    Click image for larger version. 

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    Really nifty, if you ask me.


    https://knowledge.autodesk.com/suppo...pe%20parameter
    Last edited by tuekappel; May 27th, 2019 at 10:58 PM.

  2. #2
    The Moderator with No Imagination MPwuzhere's Avatar
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    You can type in any formula that you want as long as you type in the = first. I created a fun little calculator (keys don't work...just type = and your equation when someone complained that Revit doesn't have a calculator.
    Attached Files Attached Files

  3. #3
    Member tuekappel's Avatar
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    Quote Originally Posted by MPwuzhere View Post
    You can type in any formula that you want as long as you type in the = first.
    Yeah, i try to teach this to all my colleagues, when i see them reach for their calculator.
    For this peticular example i was surprised that i didn't have to type "=atan(a/b)", since that's the correct formula in the family editor. Instead it's enough to just type "=a/b", and Revit assumes the atan, since the parameter type is slope.
    ordinary numbers are interpreted as angles, so "7" will be interpreted as 7º

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