Light Fixtures Going Bonkers

[mjdanowski]

I don't know why it does this, but after my last model update I found the following with my lights attached to a ceiling which the architect apparently screwed with.

Needless to say I was less than thrilled with having to redo the entire floor's lighting layout (again).

This is not the first time this has happened to me, and I am sure many others have seen it. Anyone know why it happens?

[bcgatti]

It looks like your fixtures are unhosted.

I would guess that the architect deleted and replaced the ceiling instead of just redefining it. Once you have hosted to their ceiling they should not delete it. If a change needs to be made they should be redefining instead of replacing.

[bcgatti]

Well, here's another possibility that was just pointed out to me - this SR has been open since August 2008.

From the following thread: http://forums.augi.com/showthread.php?t=87336&page=2

"Well you all have not come across the fact that there is a problem with "some" ceilings and face-hosted fixtures in that when arch has to make a change to a ceiling your fixtures will get zinged all over the place!

SR# 1-4135871951 - Light fixtures are moving

This is an update to your Support Request. Our development team has reproduced your reported issue. Your Support Request is now with a review board to determine next steps. Taking into account the severity and associated risks identified in your Support Request, the issue may be remedied; if so, a tentative date will be set for the remedy.

The development team will notify us of the review board's decision and we will notify you immediately by email whenever your Support Request is updated. We appreciate your patience as we work to resolve your Support Request.

Please note: Not all issues identified in Support Requests are considered significant enough to address in their entirety; a proposed correction may create significant stability risks; some issues may be impossible to fix due to product architectural restraints. Whenever possible, we will work with you to establish an acceptable workaround.

For now, until I receive more information, the best workaround I can provide is to rehost the light fixtures after they've moved"

[mjdanowski]

The problem comes though when they are not zinged all over the place in a neat fashion like in the instance above. Last time this happened to the lighting, I had fixtures randomly placed throughout my entire basement. It took me a while to find them all AND replace them in the room the came for.



It looks like your fixtures are unhosted.

I would guess that the architect deleted and replaced the ceiling instead of just redefining it. Once you have hosted to their ceiling they should not delete it. If a change needs to be made they should be redefining instead of replacing.

We send out a nice little memo on the subject before we start a job in Revit. However almost on all projects it is either ignored, or it doesn't get to the hands of people who do the work in Revit

[mwiggins]

Matt,

It was explained to me that it does not matter if the arch is MODIFYING the ceiling or replacing it. The "insertion" point on the ceiling gets thrown out into space and therefore does not know how to handle the lights. We have seen this on multiple projects. We have gone back to non-hosted fixtures until it is fixed.

[RobertB]

... We have gone back to non-hosted fixtures until it is fixed.Would using hosted fixtures on a reference plane work?

[mjdanowski]

Would using hosted fixtures on a reference plane work?

I am sure if you do that and constrain it to the ceiling, you could have the same functionality without the nasty side effects. Saves you having to redo your entire family library in the non-hosted flavor.

Our problem though is that we have a project with 1500 fixtures currently hosted on the ceiling. Luckily we are close to 100% and the arch won't be screwing with the ceilings that much, because that would be a pain.

[schrodingerscat]

Slightly unrelated but I also have this problem with my ductwork (cable tray) and the annotation I have set up for it.

I have the tag on top of the duct, but when I make a change to the duct such as extend it 500mm the tag ends up flying away into the middle of nowhere and I have to go grab it and bring it back.

[mjdanowski]

Slightly unrelated but I also have this problem with my ductwork (cable tray) and the annotation I have set up for it.

I have the tag on top of the duct, but when I make a change to the duct such as extend it 500mm the tag ends up flying away into the middle of nowhere and I have to go grab it and bring it back.

Yeah, we had it for ducts too. Lets just say we were getting warnings of 563' flex duct.

[cporter.207875]

We just had this issue happen today, so I figured I would bump this old thread. Hasn't Autodesk fixed this issue? Apparently this is related to the origin point of the ceiling changing whenever the arch edits the ceiling sketch. Anyone know any different?

[jason.martin]

Hi Cory - What version are you using?

[cporter.207875]

It only happens in 2009. I was thinking it was fixed in one of the web updates, but I guess not.