Re: [EnergyPlus_Support] Why I have never succeed in using IFCtoIDF utility?

[Rob Hitchcock <RJHitchcock@xxxxxxx>]

You have to define Spaces in your model. IFCtoIDF uses these Spaces to
identify Thermal Zones for E+, and to subdivide surfaces like Walls,
Floors, and Ceilings/Roofs into thermal boundary surfaces, and determine
what zone is on the other side of interior walls.

If adding Spaces to your model does not help, please email your model
directly to me so that I can review it.

Rob Hitchcock
======================================
Robert J. Hitchcock, Ph.D.
Staff Research Associate
Building Technologies Department
======================================
Lawrence Berkeley National Laboratory
901 D Street, SW, Suite 950
Washington, DC 20024 USA
+1 202 646-7959 (voice)
+1 202 646-7800 (fax)
RJHitchcock@xxxxxxx (email)
http://eetd.lbl.gov/BTD/BTD.html
======================================
tandog tandog wrote:

> Dear all,
> Why I have never succeed in using IFCtoIDF utility?
> First, I have installed those softwares, ADT 3.3 , IFC 2.x for ADT,
> BSPro. for E+, IFCtoIDF utility.
>
> After I drew a drawing in Architectural Desktop 3.3, even the drawing
> is only ONE wall, then export to IFC file, then transfer IFC to IDF by
> the software IFCtoIDF utility.
>
> The error message is always "error reading IFC, message written to IDF
> file".
>
> the warning message in IDF is always :"
> ! WARNING - No Building Storey instances found in the IFC file.
> ! WARNING - Thermal Surfaces, especially Floors and Ceilings may be
> incorrectly positioned.
> ! WARNING - No Building instances found in the IFC file.
> ! WARNING - Thermal Surfaces, especially Floors and Ceilings may be
> incorrectly positioned.
> ! ERROR - No Space instances in IFC file.
>
> WHY?? Thanx for your help!!
>
> Yours Sincerely,
> Tandog
>
>
>
> ---------------------------------
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>
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>
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