[Radiance-general] glaze script limitation

[François Cantin]

Hi everyone,


I would like to model a double glazing system like the following:

first pane
surface 1: Crystal gray (Optics database number:  3056)
surface 2: Crystal gray with a SunGuard Ag 43 coating (Optics: 3156)

second pane
surface 3: Clear glass with a SunGuard SuperNeutral (SN) 62 coating (Optics: 3116)
surface 4: Clear glass (Optics: 3016)


Using the Optics2glazedb script provided by Jack de Valpine, I'm able to create a custom database which contain all of the above surfaces/layers and can be read by the Glaze script.

However, the Glaze script, used to combine the surfaces and generate a usable material definition, force the user to select at least one clear glass to compose each pane (surface 1 or 2 must be clear AND surface 3 or 4 must be clear). Moreover, the clear glass must be the same for both panes and must be the first one on the list provided when running the Glaze script.

My question is:
If I bypass the ''if structures'' constraining the composition of the panes in order to allow the selection of two different uncoated glass, can I expect  the output to be still valid ?

...
#if ($s1t != 1 && $s2t != 1) then
                #echo "One surface of each pane must be $sn_arr[1]"
                #exit 1
#endif
...


...
#if ($s3t != 1 && $s4t != 1) then
                #echo "One surface of each pane must be $sn_arr[1]"
                #exit 1
#endif
...


Without such bypass, generating a glazing system like the one described above seems impossible.


Thanks in advance for your help,


_____________________________________________________________
François Cantin, M Arch, MSc Arch

Hudon Julien associes,
1175 Lavigerie, suite 400, Ste-Foy(Québec) G1V 4P1
Tél: (418) 653-8484 #224, Fax:(418) 653-6189
E-mail: fcantin at hudonjulien.com<mailto:fcantin at hudonjulien.com>
Site web: www.hudonjulien.com<http://www.hudonjulien.com/>
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