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<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US">Warren,<?xml:namespace
prefix = o ns = "urn:schemas-microsoft-com:office:office"
/><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT color=#000000><FONT
face="Times New Roman"> <o:p></o:p></FONT></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US">Our
approach to 3D IFC import is based on the observation that most 3D CAD models
have been - and in the future will be - formulated for other primary purposes
than thermal performance simulation. They are rarely appropriate as is but an
engineer needs to be able to control the mapping between model spaces and
thermal zones. Quite often a more or less manual selection will be the most
practical, e.g. the model may contain all the rooms of a building and for the
thermal model, you want to study perhaps a single floor or a group of
exceptional rooms.</SPAN><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT color=#000000><FONT
face="Times New Roman"><SPAN
style="mso-spacerun: yes"> </SPAN><o:p></o:p></FONT></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US">Our
thermal tool, IDA Indoor Climate and Energy 3.0, has it own 3D geometrical
modeler into which one may import an IFC 1.5.1 or 2.0 model as a (3D)
"background model". The user then instantiates the individual IFC spaces or
groups of spaces that he or she wishes to study. This has proven to be a
powerful time-saver and has been commercially available for about a year.
<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US">Other
information such as constructions may also be imported from the IFC model,
should they be present there. However, this is rarely the case in today’s
practice, where it seems that most 3D models are still defined for a single
purpose, such as making a visualization, rather than being a generally
applicable description of the building. We have seen some pretty “interesting”
3D models from unaware CAD modelers.<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US">There
is a demo session showing a simple case of IFC import on<SPAN
class=202421917-03092002> <A
href="http://www.equa.se/ice">www.equa.se/ice</A> </SPAN></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US"><SPAN
class=202421917-03092002></SPAN></SPAN><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US">Best
regards,<o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US"> <o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="FONT-SIZE: 10pt; COLOR: blue; FONT-FAMILY: Arial; mso-ansi-language: EN-US">Per
Sahlin</SPAN><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><o:p></o:p></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT color=#000000><FONT
face="Times New Roman"> <o:p></o:p></FONT></FONT></FONT></SPAN></P>
<P class=MsoNormal style="MARGIN: 0cm 0cm 0pt"><SPAN lang=EN-US
style="mso-ansi-language: EN-US"><FONT size=3><FONT color=#000000><FONT
face="Times New Roman"> </P>
<P><FONT size=2>------------------------------------------<BR>Per
Sahlin, EQUA Simulation
AB <BR>per.sahlin@equa.se<BR>+46-8-27 27
67<BR>+46 70 422 03 02 (mobile)<BR>+46-8-27 40 32 (fax)<BR>P.O. Box 1376<BR>172
27 Sundbyberg, Sweden<BR><A href="http://www.equa.se/"
target=_blank>http://www.equa.se</A>
<BR>----------------------------------------- </FONT></P>
<P class=MsoNormal
style="MARGIN: 0cm 0cm 0pt"><o:p></o:p></FONT></FONT></FONT></SPAN></P></FONT></SPAN></FONT></SPAN><FONT
face=Tahoma size=2>-----Original Message-----<BR><B>From:</B> postman@gard.com
[mailto:postman@gard.com]<B>On Behalf Of </B>Warren A. Campbell<BR><B>Sent:</B>
Sunday, September 01, 2002 8:54 PM<BR><B>To:</B>
Bldg-sim@gard.com<BR><B>Subject:</B> [Bldg-sim] 3D Modeling / Energy Analysis
Compatibility<BR><BR></FONT></DIV></DIV>
<BLOCKQUOTE dir=ltr
style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #0000ff 2px solid; MARGIN-RIGHT: 0px">
<DIV><FONT face=Arial size=2>Is anyone familiar with the progress the industry
is making towards integrating energy analysis software with some of the
leading 3D CAD programs (ArchiCAD, Revit)?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Warren Campbell</FONT></DIV>
<DIV><FONT face=Arial size=2>Millennium 3 Design Group</FONT></DIV>
<DIV><FONT face=Arial size=2>(704) 333-1965.Ext 22</FONT></DIV><PRE>
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