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Thread: adjustable lighting design

  1. #1
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    adjustable lighting design

    Hello,
    I work for a lighting-design firm.
    I was wondering if there is a way to make the design adjustable in the project.
    For example, in a ceiling-based-lighting fixture, i make cables (like in the original design).
    The problem is that I don't know how to define the cable as adjustable, so i could change the length
    without going to the family and adjust it manually every time.
    Further more, if there is a way to change the whole size of an object-I would love to know as well.

    thanks in advance,
    Dan Kantor

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    Everything you ask is doable, but probably you'd need to study a bit more, simple answer on the forum might not be enough. Go to youtube and search for "parametric family creation in revit"

    If you need someone to do it for you, feel free to send me a private message

  3. #3
    Moderator DaveP's Avatar
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    Interesting that this was posted so recently.
    I'm in the process of standardizing our office Lighting families. Right now we've got a mish-mash of home-built, downlaoded and (probably) stolen from other models.
    I know it's a better practice to make them face-based instead of Ceiling-hosted.
    But at the moment, I'm considering making ours Ceiling hosted for two reasons:
    1.) I can include the Opening Cut for larger (2 x 4) drop-in lights. Perhaps not any different/better than Cuts with Void, however.
    2.) The bigger reason, though, is that I can specify the height for pendant lights. With a face-based family, I can only specify the distance from the face. But with a Ceiling-hosted family, I can mount it on the Ceiling and still be based on a Level. Which means I can have the top connected (hosted) to the Ceiling, but I can specify the bottom as a Height above Level (the floor)
    Like I said, I know it's not the best idea to make then Ceiling-hosted, but:
    They will only be in-house with our Architectural models so there should never (ahem) be a need to worry about hosting on Links
    I don't know of any way to get both the Height above Floor and the Ceiling height in a face-based family. Any ideas? (No, Dynamo won't work - we'd need to run it every time we place light)

  4. #4
    Forum Co-Founder Twiceroadsfool's Avatar
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    Make them completely unhosted (not face based), place them at the election of the fixture itself (offset from floor), use Dynamo to change an instance parameter after having dynamo look for a floor/roof/ceiling/wall above the fixture.

    Ceiling hosted sucks.

    Sent from my Phablet. Please excuse typos... and bad ideas.

    Aaron Maller
    Director
    Parallax Team, Inc.

  5. #5
    Moderator DaveP's Avatar
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    So, place fixture, run Dynamo?
    Place fixture, run Dynamo
    Place fixture, run Dynamo
    Place fixture, run Dynamo
    etc,etc, etc.
    Even if you can select an entire room, or level, I worry about how long it will take.
    If the users remember that run the Dynamo at all.
    How about that one light that gets added the day of issue? Or the one ceiling that changes?
    If Dynamo could run in the background and detect when a light is placed, that would be fantastic, but relying on user input worries me.

  6. #6
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    Have you considered the two-level template? I use it for ceiling mounted signs, some gym equipment, and pendant lights, etc.

  7. #7
    Moderator DaveP's Avatar
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    I considered a two-level family, but the use is still required to select/set both levels.
    And, since we typically don't create a level for the Ceilings, we're still in the same boat with manually entering the height.
    The reason I'm so tempted by the ceiling-hosted (even though I know they suck) is that I can place them on a Ceiling and specify the height from the floor. And both those values remain automatically even if things change.

  8. #8
    Forum Co-Founder Twiceroadsfool's Avatar
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    Quote Originally Posted by DaveP View Post
    So, place fixture, run Dynamo?
    Place fixture, run Dynamo
    Place fixture, run Dynamo
    Place fixture, run Dynamo
    etc,etc, etc.
    Even if you can select an entire room, or level, I worry about how long it will take.
    If the users remember that run the Dynamo at all.
    How about that one light that gets added the day of issue? Or the one ceiling that changes?
    If Dynamo could run in the background and detect when a light is placed, that would be fantastic, but relying on user input worries me.
    No. Place all light fixtures in the project... At some point, run Dynamo once. Maybe run it before printing again, if you are worried about it. You are willing to take ALL of the lousy **** that goes along with ceiling hosted, because a user might not do what they are told? Good luck, i guess.

  9. #9
    Moderator DaveP's Avatar
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    Quote Originally Posted by Twiceroadsfool View Post
    At some point, run Dynamo once.
    Come on, now. You've done hospitals.
    Did you get every light placed correctly the first time?
    Did you get every ceiling at the right height when you created them?
    These things change on a weekly basis.
    I get that there are a lot of issue with hosting, and I love Dynamo, but you can't just snap your fingers once and fix everything in a project forever.

  10. #10
    Forum Co-Founder Twiceroadsfool's Avatar
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    Quote Originally Posted by DaveP View Post
    Come on, now. You've done hospitals.
    Did you get every light placed correctly the first time?
    Did you get every ceiling at the right height when you created them?
    These things change on a weekly basis.
    I get that there are a lot of issue with hosting, and I love Dynamo, but you can't just snap your fingers once and fix everything in a project forever.
    LOL, BECAUSE I've done hospitals I also know that Ceiling Hosted sucks in a hospital, especially when:

    1. Ceilings aren't flat , so they get done with shape edited roofs or floors, or roofs by extrusion, or even wall/roof by face. Some.of the most complex ceiling designs I've seen we're in hospital.

    2. Lights get placed on the underside of floors and roofs (good luck with ceiling hosted) in utility rooms. (gonna double up your ceilings and roofs/slabs?)

    3. Ceilings and lights are wrong all the time. But I'm talking about occasionally clicking one button to sync up ALL the lights and ceilings. You..... Are talking about teaching people to remake content when they realize your CH lights won't work?

    I'm far from a Dynamo-for-everything advocate. But ceiling workflows have sucked forever. IF you use Dynamo, it let's you go completely unhosted, and STILL have it all work correctly.

    It's not one or the other. Ceiling Hosted simply can't do it all.

    Sent from my Phablet. Please excuse typos... and bad ideas.

    Aaron Maller
    Director
    Parallax Team, Inc.
    GMcDowellJr likes this.

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