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Forums >> General Discussion >> Wishlist >> Inserting Links
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When inserting Revit Links or AutoCAD Links, it should Default to Origin to Origin, not Center to Center.
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Quote by: Holtz, Lou
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Sorry but I think you are wrong. Center to center at least gives you something you can see in your view. A lot of CAD has orgin points that results in no visible objects at all.
Revit gives you the shared referencing that allows you to better control this than origin does.
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Sorry Hub, I disagree with you, I can see your point but don't agree. By default a project should be setup with the same basepoint, if a xref or link gets unloaded (deleted) removed, it should be able to be loaded back in again orgin to orgin and return to the same spot, I should never have to move a xref or link around to match. Center to Center should be the second choice if the porject wasn't set up correctly and things float out in space whilly nilly like. Human error happens when you start moving references. I always want my projects origin to line up, I would fix the orgin to meet project standard to avoid this. AutoCAD and Microsation insert origin to origin by default I would expect Revit to do the same. But that is just my logic from old school CAD.
When you use Shared Coordinates and a link gets moved and saved, it can cause a daisy chain of problems, I wouldn't call shared coordinates better only different.
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Quote by: Holtz, Lou
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You are missing the point.
By default, a linked Revit file should have started from a conceptual model and thus already shares the same shared coordinate point. That's why we copy/monitor levels and grids to begin with.
CAD files know nothing about Revit unless they are brought into revit, placed and then marked by revit with a shared coordinates base point.
For a better understanding of this process, I suggest you read "Revit's Shared Coordinates - A Tutorial by Steve Stafford and published in winter 2010 AECEdge.
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"By default, a linked Revit file should have started from a conceptual model and thus already shares the same shared coordinate point. That's why we copy/monitor levels and grids to begin with."
Then by your logic the default should be insert by shared coordinates, which is fine by me too...
I think you are missing my point. Insert Center to Center and move your links around, I don't care.
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Quote by: Holtz, Lou
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I used to have success with origin to origin. Now I've discovered that it doesn't matter sometimes because you can change the coordinates. Which, kind of defeats the purpose, but it helps in case you forget to change the setting or forget what someone else did when you weren't looking. 
Either way is successful, just make sure EVERYONE in the company does it the same way on the same project.
Edited on: Thu, May 2, 2013 at 3:19:58 PM
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RB Cameron
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rbcameron
yes the coordinates can be changed which is a good thing when you need to change them to line up a link/xref that is floating in space for the first time you load this link/xref into a project, once loaded the coordinates should never be changed again with maybe the one off exception that I can not image but I have seen tons of (what the freak).
Seriously though, once a project is set up the coordinates should never be changed, if you lose a reference you can reload this reference by origin to orgin or by shared coordinates if the project is set up this way(not all projects are) this way you 100% sure that your models lines up... This is not so much an issue in Revit, but in AutoCAD and Microstation, in plan, you can move an object from end point to end point and a wall has a two end points one at the bottom and one at the top, which end point are you picking when in plan? your model could be off in the Z axis... And theoretically if you are in the wrong view, work plan etc.. and you load a link, where is it, which level is the center to center on, do you have to move this link on the X,Y and Z axis to line them up? I dont know, I don't use center to center except my accident when I forget to change my insert option but it seems dangerouse to me.
I strongly disagree with insert center to center for reason stated but each to their own and work flow. I can wish in one hand and yada yada yada....
PS... you do some kick butt renderings, kudos
Edited on: Thu, May 2, 2013 at 4:54:25 PM
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Quote by: Holtz, Lou
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Revisiting some of my old posts and it is nice to see that 2016 & 2017 now insert Origin to Origin.
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Quote by: Holtz, Lou
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