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Hotlinking RVT files?

Ruben V
Advocate
I was reading up on Hotlinking (new IFC-option in Archicad 21 - woohoo!), when I came across this sentence:
Note: When hotlinking IFC or RVT files, make sure you use the Keep Elevation option! Otherwise, the imported model may “fall apart” when its elements are placed in a different story structure
You can find it here: https://helpcenter.graphisoft.com/guides/archicad-21/archicad-21-reference-guide/collaboration/hotlink-modules/hotlink-settings/
at the bottom of the page.

Didn't find any other references on this, but is this a typo or is GS really developing this option?
I guess they probably mean IFC made from a RVT?

Would be very nice and really Open (BIM)minded to provide this option...
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runxel
Legend
B.E.A.T. wrote:
Would be very nice and really Open (BIM)minded to provide this option...
Sorry for being slightly offtopic here, but I'd like to argue against that point.
Sure, for many users, that would be a short-term relief. But this would take away the pressure on the-company-which-name-shall-remain-silent completely.
It would unnecessarily brace the quasi-standard on RVT files, which – I think – can not be the goal.
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Laszlo Nagy
Community Admin
Community Admin
B.E.A.T. wrote:
I was reading up on Hotlinking (new IFC-option in Archicad 21 - woohoo!), when I came across this sentence:
Note: When hotlinking IFC or RVT files, make sure you use the Keep Elevation option! Otherwise, the imported model may “fall apart” when its elements are placed in a different story structure
You can find it here: https://helpcenter.graphisoft.com/guides/archicad-21/archicad-21-reference-guide/collaboration/hotlink-modules/hotlink-settings/
at the bottom of the page.

Didn't find any other references on this, but is this a typo or is GS really developing this option?
I guess they probably mean IFC made from a RVT?

Would be very nice and really Open (BIM)minded to provide this option...
Must be mistyping. I am not aware of any such feature in ARCHICAD 21.
Hotlinking IFC, yes, but not RVT files.
I will notify the documentation team at GS about it.
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stefan
Advisor
Maybe they were living in the future for a moment... The Teigha Libraries on which ARCHICAD relies for DWG support also have RVT file format support. This is a paid update to the developer. I'm not aware of anything in particular, but it seems that eventually we will see RVT-file format support in ARCHICAD. It is already happening in a few other applications.

I'm not convinced that having RVT support will magically resolve interoperability between AC & RVT, just like IFC isn't. RVT is still a widely different beast than AC is: Type/Instance difference (AC has no type properties), different material properties (more parameters at material level in RVT), different default property sets (Keynote, Assembly Code, Type Mark... in RVT), different approach to library objects (families based on geometric constraint-based sketching vs Basic programming in GDL), different approach to classification (AC can enable/disable availability of properties based on assigned classification values), reliance on Windows + .NET (especially when taking add-ins into account), visibility/graphics approach in RVT is different to graphic overrides in AC (overrides misses visibility) etc...

Maybe having good RVT file format support is moving attention away from IFC? I don't know.
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