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Thread: Extrusions ending at walls

  1. #1
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    Extrusions ending at walls

    I am currently editing a Fire alarm device family to show coverage areas per candela rating. I am doing this with an extrusion that shows as a hatch pattern in the model.

    An issue that i am trying to fix right now is having those extrusions ending at walls. Is there a way to have a the extrusion have a specific width and length unless it is running into a wall?

    I have attached the family for your reference.

    Any help would be appreciated, even if its a "this wont work".


    Zach
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    If you want your family to automatically detect it's surrounding in a project and flex itself to fit then this is not possible with a family editor.
    You could try to achive it with Dynamo or global parameters in latest versions of Revit but that will require some work and I am not sure if you get it faster and easier than just dragging grips of coverage area manually but YMMV.

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    Quote Originally Posted by Artejon View Post
    If you want your family to automatically detect it's surrounding in a project and flex itself to fit then this is not possible with a family editor.
    You could try to achive it with Dynamo or global parameters in latest versions of Revit but that will require some work and I am not sure if you get it faster and easier than just dragging grips of coverage area manually but YMMV.

    Thanks for replying,

    I will look into the dynamo and global parameters for this.

    Also for the grips, is there a way to put a maximum distance that they can extend to?

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    You have to put a formula for a parameter to limit it's maximum value.

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    jmk
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    Quote Originally Posted by Artejon View Post
    You have to put a formula for a parameter to limit it's maximum value.
    Which will work to limit the extension, but I think once its controlled by a formula the grips disappear. You might be able to have a grip with no elements associated that can be stretched to infinity and then the formula controlled coverage area that has a formula that uses the user value if it is less than a certain value or the max value if the user value is greater.

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    Quote Originally Posted by jmk View Post
    Which will work to limit the extension, but I think once its controlled by a formula the grips disappear. You might be able to have a grip with no elements associated that can be stretched to infinity and then the formula controlled coverage area that has a formula that uses the user value if it is less than a certain value or the max value if the user value is greater.
    Yes, grips will dissapear but you can still drive geometry with grips :-), no need to input a value. See attached family.
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