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Forums >> Revit Building >> Technical Support >> Unwanted Lighting Fixture Rotation
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Joined: Mon, Aug 29, 2011
2 Posts
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Users,
One of our employees from the electrcal department has encountered some wierd things happening to her lighting fixtures in Revit MEP 2012. We do not use ceiling hosted fixtures at our firm. We've found that they are more trouble than they are worth (my opinion). Instead, we host to horizontal reference planes drawn backwards. We draw the planes backwards so that lights host right-side-up when placing them from an RCP view. Lately we've noticed that some of our lighting fixtures are rotated once we reopen our model. Upon my initial investigation I found assumed that someone mistakenly rotaed the fixtures or reference plane somehow. Whats weird is that fixtures are rotated about their respective center axis and are either rotated 90degrees clockwise or 90degrees counter clockwise. I have been a BIM Manager for a while now and have never encountered this issue, but I know when an where to ask. Has anyone had this happen to them and possibly worked out a fix?
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Joined: Thu, Mar 17, 2005
1231 Posts
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Bizzaar, I have been involved in many REVIT projects involving lights and reference planes as you describe and I have yet to see lights mysteriously rotate on their own after opening the file.
Very strange indeed. Ghost in the machine.
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Joined: Tue, May 16, 2006
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Backwards reference planes???? I've never seen or used them but I do use a different method.
You folks do know that a default ceiling has no 3D properties. It is just a reference to host your ceiling based objects.
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Joined: Thu, Mar 17, 2005
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I think 'backward reference plans' means right to left instead of left to right. Which really depends on which way you are looking at it. Reference plans do have a start end and an end end.
This comes into play when you create families ir do an extruded roof based on a workplane. Positive vs Negative extrusion values.
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