<html><body bgcolor="#FFFFFF"><div>I don't think a window subsurface is possible on a ground bounded surface. I would draw the light shaft as zone or split the surface off around the window (this means splitting the surface into 5 parts) and assign Outdoors as boundry.</div><div><br></div><div>As for 2. save the idf using the plugin. it is forbidden to save a .skp file at all... just don't. Then load the idf into a new just opened sketchup. If I remember right, all construction lines are errased. If you really have zones with 2 verticies, I would use a text edditor to find and elliminate them. <br><br>Sent from my iPhone</div><div><br>On 03.07.2012, at 11:20, <a href="mailto:Anne-Kathrin.Albrecht@ise.fraunhofer.de">Anne-Kathrin.Albrecht@ise.fraunhofer.de</a> wrote:<br><br></div><div></div><blockquote type="cite"><div><font size="2" face="sans-serif">Hallo everybody,</font>
<p><font size="2" face="sans-serif">I have several problems with Trnsys3d:</font>
</p><p><font size="2" face="sans-serif">1. I
am working on a building that has a cellar with windows. When I convert
the idf-file into a TRNBuild-file (b17 idf-file) the cellar walls are shown
with a wrong area (takes the net area = gross area minus windows instead
of the gross area) and the windows are missing. Is it not possible to include
windows in walls that have the ground as a boundary? Of course the house
has a light well, but I thought I could solve the problem by just drawing
the windows and setting them to a high shading factor.</font>
</p><p><font size="2" face="sans-serif">2. Is
it possible to list all the drown surfaces in a building? I´ve always used
the surface search so far but I have two lines (drown by accident) that
are recognized as walls with an area of 0.001 m² and I don´t know where
they are, so it´s like searching for a needle in a haystack...</font>
</p><p><font size="2" face="sans-serif">Best regards,</font>
</p><p><font size="2" face="sans-serif">Anne-Kathrin Albrecht</font></p></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>TRNSYS-users mailing list</span><br><span><a href="mailto:TRNSYS-users@cae.wisc.edu">TRNSYS-users@cae.wisc.edu</a></span><br><span><a href="https://mailman.cae.wisc.edu/listinfo/trnsys-users">https://mailman.cae.wisc.edu/listinfo/trnsys-users</a></span><br></div></blockquote></body></html>