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Thread: How to change the scale of a jpg file?

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    AUGI Addict Joef's Avatar
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    Default How to change the scale of a jpg file?

    A workflow that I use quite often in Vectorworks and AutoCAD is to bring in a PDF or a JPG file and change the scale of it so I can trace over it. Is there a way to do this in Revit that I do not know about?

    Joe

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    Digital Delivery Director Brian Myers's Avatar
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    Default Re: How to change the scale of a jpg file?

    Others will likely have a better solution, but you could create a Decal at a certain scale, create a view of it, and use that view as an underlay. You wouldn't be able to "snap" to it, but it could easily be made the correct scale.

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    AUGI Addict Joef's Avatar
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    Default Re: How to change the scale of a jpg file?

    Is there a way to scale a decal in Revit? Numerically, not graphically?

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    Digital Delivery Director Brian Myers's Avatar
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    Default Re: How to change the scale of a jpg file?

    Yes, if the original image is at a known scale or a part of that image is a known scale. Simply create an object that is exactly the same dimension as the original image/item you are scaling and scale the decal to it. If the decal was printed/created to the correct scale then attached to an object you know is at the correct scale... then the correct scale the decal will be (or at least within a tiny tolerance so small that it simply won't matter).
    Last edited by Brian Myers; 2007-05-23 at 03:23 AM.

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    Default Re: How to change the scale of a jpg file?

    I create a new drafting view and import the file. Once imported simply select the document making certain you haven't pinned it. Once selected, you can grab the grips and 'pull' in any direction to increase or decrease the size. As an alternate, once selected, you can use the RESIZE tool to resize by graphical or numerical value.

    If the document was imported at no scale, I use reference lines offset by some value and resize to this dimension as accurately as I can.

    Quite simple and very effective.

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    Revit Founder LRaiz's Avatar
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    Default Re: How to change the scale of a jpg file?

    It sounds like Resize command should work nicely on your imported jpg.

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    Digital Delivery Director Brian Myers's Avatar
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    Default Re: How to change the scale of a jpg file?

    Quote Originally Posted by rookwood
    Quite simple and very effective.
    Same principle as mine (works along the same "known scale" lines) but more elegant depending on your needs. I knew someone else would have a solution.

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    AUGI Addict Joef's Avatar
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    Default Re: How to change the scale of a jpg file?

    Resize!! Thanks. I work in three different programs and it becomes a chore remembering the terms for identical operations in all of them. It's like switching languages. Thanks everyone!

    Joe

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    I could stop if I wanted to Chirag Mistry's Avatar
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    Default Re: How to change the scale of a jpg file?

    I believe if you select the image and look at properties, you can type the height and width.

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    Default Re: How to change the scale of a jpg file?

    Quote Originally Posted by Chirag Mistry
    I believe if you select the image and look at properties, you can type the height and width.
    You can resize this way. However, there are two issues: RESIZE and SCALE. Resize is very simple and can be acheived using several techniques. However, if you need to rescale, without a scaled import, it requires some trial and experimenting. Still simple enough.

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