Re: [EnergyPlus_Support] dwg - ifc - idf

[Rob Hitchcock <RJHitchcock@xxxxxxx>]

I think there are two questions to be answered here.

1.  An update to the IFCtoIDF utility is available on the EnergyPlus 
Support site (http://groups.yahoo.com/group/EnergyPlus_Support/) under 
Files/Updates.  This update is intended to address the problems with 
Spaces/Zones in ADT.

2.  The problem with opening a DWG and trying to export it to IFC is 
that the DWG may not contain the object-based representation of entities 
like Walls, Windows, etc. that is necessary for mapping to the IFC data 
model.  The drawing must be created in ADT.

Rob Hitchcock
=============

Mohit Mehta wrote:

>
> i got the latest version of architectural desktop 3.3, which supports 
> IFC. BSPro COM-Server is installed and authorized correctly too. i 
> created a 3d CAD file and did an IFC export. it gave me an error 
> message but created an IFC file. and then ran the IFC to IDF editor. 
> it created the IDF file too.
>
> then on running the simulation from EP launch it terminated. errors -
>
>   ** Severe  ** No items found for Required Object=ZONE
>    ** Warning ** Note -- Some missing fields have been filled with 
> defaults.  See the audit output file for details.
>    ** Severe  ** Other miscellaneous errors found in input
>    **  Fatal  ** Out of "range" values and/or blank required fields 
> found in input
>    ************* EnergyPlus Terminated--Fatal Error Detected. 1 
> Warning; 2 Severe Errors
>
> is there a certain specific way to build an autocad model for it to 
> export correctly as an IFC...??? can't i take a regular .dwg file of a 
> building and export it...???
>
> any help would be much appreciated. thank you, ~mohit
>
>
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