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question about exporting true north to ifc

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Anonymous
1212 Aufrufe, 1 Antwort

question about exporting true north to ifc

Hello,

 

I really need some help on this one!

 

I have modeled a project included 2 walls using Revit 2015 and then exported the model to IFC to check the coordinates of true north in the model.

 

I've set the true north 0 degree on 'project base point', but in IFC file, I think there are a little difference between the true north in Revit and IFC File

 

What I've expected coordinate value in IFC file is [0,1], but the coordinate value in my IFC file is [6.12303176911189e-17,1]. 

 

* The path of what I've checked coordinates is below :

 

IFCPROJECT -> IFCGEOMETRICREPRESENTATIONCONTEXT -> IFCAXIS2PLACEMENT3D(for checking location) & IFCDIRECTION(for checking true north)

 

qnarevit.png

 

* The picture below is what I've set in Revit

 

qnarevit2.png

 

-> this is for avoiding to using internal coordinate system of Revit

qnarevit3.png

 

is there any people to give a idea?

 

thank you

 

best regards.

 

 

 

 

 

 

 

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ryan
als Antwort auf: Anonymous

Can you attach the files for analysis?

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