[EnergyPlus_Support] Re: IFC>IDF problems

["waspoorboy" <mingsbox@xxxxxxxxxxxxxx>]

Thanks, Rob.
I figured out that my problem was I didn't create the "space" in 
ADT3.3. I put in six surfaces(1roof/1slab/4walls) only and think that 
ADT3.3 will know the volume enclosed by six surfaces is a space.
Now I created the space in ADT.
==========
When I run IFCtoIDF with the IFC(2x) exported by GtsIfc2xUtility in 
ADT3.3, the error message is:
---
The instruction at "0x10003658" referenced memory at "0x00000004".
The memory could not be "read".
Click on OK to terminate the program
Click on CANCEL to debug the program
---
the debuging window shows:
Unhandled exception in IFCtoIDF.exe(EPLUSBSCLIENT.DLL): 0xC000005: 
Access Violation
==========
When I export the IFC(1.5) by the ADT3.3 and run IFCtoIDF,
it was successful, 1 zone and 4 exterior surfaces/walls showes up.
The problem "no space instances" is solved.
But there are still no roof and no floor in the IDF.
==========
Ming


>Ming,
>
>There has to be an instance of IfcSpace in the IFC file. This object 
>type is mapped to ZONE in EnergyPlus and is the central object that 
>defines thermal surface boundaries for a simulation. We may be able 
>to work around the absence of an IfcSite instance, but you will have 
>to create spaces in your models to use IFCtoIDF.
>
>Send me your IFC file and tell me exactly how you created it.
>
>Rob



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