Link revit object with origin to origin in stead of shared coordinates problem

[Anonymous]

Hello,

Yesterday I askes a question about shared coördinates and my issue was quicly resolved, for which many thanks. But the solution created another question about coordinates in Revit for me.

I can now succesfully implement shared coordinates between two files, however for a more robust method I would like to link models with auto – origin to origin in stead of shared coordinates. The situation is as follows

Site project (in which all models are placed) with:

Survey point at X=0 and Y=0

Project Base Point for example X=10 and Y=10

Object A (which has to be placed in the site project on location X=7 and Y=7)

Survey point at X=0 and Y=0

Project Base Point X=10 and Y=10

Now before doing anything if I link in Object A in the Site Project Object A is placed at X=5 and Y=5 (for reference later on)

Followed steps:

1. Open Object A
2. Link in Revit Site Project with auto – origin to origin
3. Acquire coordinates from the linked site project (the Project Base Point changes position from the local X=10 and Y=10 to the relative position of the acquired coordinates, say for example X=8 and Y=8)
4. Manually place object A on X=7 and Y=7 (Project Base Point of Object A goes to X=10 and Y=10
5. Unlink Revit Site Project
6. Save Object A

After I have done this when I open the Revit Site Project and link in Object A with shared coordinates it is placed on X=7 and Y=7, the right place, everything goes well.

However when I link in Object A with auto – origin to origin, it is again placed on X=5 and Y=5. Does anyone know why with origin to origin it is again placed on the old coordinates even though I changed them in the original Object A file? And is there a possibility to make this method work?

Regards,

Peter

[Alfredo_Medina]

Origin to Origin and Shared Coordinates are two alternatives. You use one or the other. Based on your description, you are mixing the two methods. The moment you use Acquire or Publish, you are using Shared Coordinates. 

[Anonymous]

U are correct, I figured out where I mixed the methods. But thank you for your reply.