IFC export "generate new value" in AC 25
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‎2022-01-20 11:12 AM
Hi everyone
despite digging inside the AC 25 documentation I have an issue I would like to expose.
A sub-contractor asked me to use the "Generate new values" settings for my IFC exports.
He sent me a link to a GS AC 23 help page explaining the method.
I have AC 25 and I don't find the option. The name of the function probably evolved but I don't get it.
Thank you for your help.
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‎2022-01-23 04:28 PM
Found the solution:
Just merge your IFC in an empty file. File -> interoperability -> Merge -> merge from local file...
Select your original IFC. When you re-export it, their elements will have new GUID attributed to them.
AC 26, macOS Monterey
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‎2022-01-20 09:13 PM
What kind of value do you want to generate? Can you put a link to the page explaining the method?
AC 26, macOS Monterey
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‎2022-01-20 09:44 PM - last edited on ‎2022-01-21 08:44 AM by Barry Kelly
My client sent me the following link
https://helpcenter.graphisoft.com/user-guide/89330/
and asked me to choose the "Generate new values" option which I cannot find in AC25. Thanks for help.

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‎2022-01-22 07:52 PM
It seems that this option no longer exists in the IFC Translators Dialog.
I am not certain but there may have been some technical reason for its removal.
My two guesses are:
1. The introduction of IFC4.
2. The introduction of BCF (BIM Collaboration Format) Issue Management workflows, which rely on IFC GUIDs for them to work.
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‎2022-01-23 04:28 PM
Found the solution:
Just merge your IFC in an empty file. File -> interoperability -> Merge -> merge from local file...
Select your original IFC. When you re-export it, their elements will have new GUID attributed to them.
AC 26, macOS Monterey
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‎2022-01-24 07:42 AM
😎Works fine.
Thank you !