Thank you David, Andy...thanks for having replied to my question. I'll
start from the information that you provided me and I'll come back to the
forum if necessary.

Have a nice day!

Chantal.


2014-02-26 10:50 GMT+01:00 minchaca <[email protected]>:

> Thank you David, Andy...thanks for having replied to my question. I'll
> start from the information that you provided me and I'll come back to the
> forum if necessary.
>
> Have a nice day!
>
> Chantal.
>
>
> 2014-02-24 18:45 GMT+01:00 Andrew McNeil <[email protected]>:
>
> If you can define the tregenza angle basis using the Window xml format
>> (which I think you can) then you can import your BSDF into Window without
>> modifications. When you combine it with other glazing layers, window will
>> use your defined basis and export a BSDF with data for the "custom" angle
>> basis (but it annoyingly gives the same Klems definition in the angle basis
>> definition tags).
>>
>> However I don't think energy plus can use anything other than the klems
>> basis so you're still stuck.
>>
>> Andy
>>
>>
>>
>> On Mon, Feb 24, 2014 at 8:27 AM, Germán <[email protected]> wrote:
>>
>>> There is some file in the source code that allows defining new basis...
>>> But, do you think it is advisable to build a Klems BTDF matrix from a
>>> Tregenza BTDF? A lot of information was probably lost in the "angle
>>> averaging"... Right?
>>>
>>> El 24-02-2014, a las 12:53, David Geisler-Moroder <
>>> [email protected]> escribió:
>>>
>>>  Hi Chantal,
>>>
>>> I'm not completely sure about that, but if I remember right, you can use
>>> the bsdf2klems routine for your problem. Therefore you need to properly
>>> specify you angle basis (i.e. the Tregenza resolution) in you input
>>> XML-file. If I do not completely mix up things, the BSDF routines in
>>> Radiance are able to load any user-defined angle basis (as long as it is
>>> well-defined). Maybe Greg can confirm my assumption...
>>>
>>> Cheers,
>>> David
>>>
>>>
>>> 2014-02-24 13:32 GMT+01:00 minchaca <[email protected]>:
>>>
>>>> @German
>>>> Thanks a lot again, I'm gonna check that paper ...and don't worry , no
>>>> 'spanglish-spelling-disaster' detected ... everything was clear!   :)
>>>>
>>>>
>>>> @Lars, do you mean David Geisler-Moroder?
>>>> The data is from the gonio-photometer that we have in the lab, is based
>>>> on Tregenza's subdivision of the sky.. it seems
>>>> that the 'quiz/utopy' would be to translate tregenza to klems basis.
>>>> Anyway...I'll try to find the presentation that you are mentioning..  :)
>>>>
>>>>
>>>> Thanks to both, so kind of you!  :))
>>>>
>>>> Chantal.
>>>>
>>>>
>>>> 2014-02-24 2:25 GMT+01:00 Germán Molina Larrain <[email protected]>:
>>>>
>>>> Chantal,
>>>>>
>>>>> I understand WINDOW does not support Tregenza basis. However, I guess
>>>>> that if you have the "raw data" obtained from the photogoniometer, you
>>>>> could mannage to use Radiance's bsdf2klems program (probably not available
>>>>> in the NREL's binaries).
>>>>>
>>>>> Another option might be to perform the Klems matrix calculation in
>>>>> Matlab or something like that, and write the BSDF IDF file yourself. The
>>>>> procedure, I understand, is Very explained in detailed in two papers named
>>>>> "A new method for calculating solar heat gains" by J. Klems.
>>>>>
>>>>> None of these options is straightforward... They might end up being
>>>>> quite hard, actually.
>>>>>
>>>>> Good Luck!
>>>>>
>>>>> Germán
>>>>>
>>>>> Ps: I am answering from my phone, which  is in spanish, so the
>>>>> "autocorrect" might have caused some gramatical and spelling disasters...
>>>>> Sorry for that
>>>>>
>>>>>
>>>>> 2014-02-23 20:38 GMT-03:00 Lars O. Grobe <[email protected]>:
>>>>>
>>>>> Hi.
>>>>>>
>>>>>> >> May I ask you one more thing (even if I kind of 'feel' what is
>>>>>> gonna be the answer) :
>>>>>> >> what about if the xml file was generated by a photogoniometer,
>>>>>> based in Tregenza's subdivision of the sky?
>>>>>> >>
>>>>>> >> Do you know if there is a way to import such file in Window?
>>>>>>
>>>>>> David presented examples step by step where he imported data into
>>>>>> Window6. Check recent workshop presentations please. However you would 
>>>>>> need
>>>>>> 145x145 BSDF values according to the Klems subdivisions for following the
>>>>>> method. Is your data measured or from genBSDF?
>>>>>>
>>>>>> Cheers,
>>>>>> Lars.
>>>>>> _______________________________________________
>>>>>> Radiance-openstudio mailing list
>>>>>> [email protected]
>>>>>> http://www.radiance-online.org/mailman/listinfo/radiance-openstudio
>>>>>>
>>>>>
>>>>>
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>>>>>
>>>>>
>>>>
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>>>
>>>
>>> --
>>> Dipl.-Ing. Dr. David Geisler-Moroder
>>> Hofwaldweg 14/20
>>> 6020 Innsbruck
>>> Austria
>>>
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