[Radiance-general] [help] steps on daylight coefficient based climate-based daylight metrics calculation

[J. Alstan Jakubiec]

Hi David,

I am copying this email to the Radiance-Daysim list as well. There are two  
more streamlined ways to go about this right now: using Daysim or using  
the Radiance three or five-phase methods.

For using Daysim, there is a lot of information I can provide:
- Tutorial from NRCAN:  
http://archive.nrc-cnrc.gc.ca/obj/irc/doc/daysim-tutorial (slightly  
updated by Harvard)
- Daysim Documentation page: http://daysim.ning.com/
- A presentation I gave in 2012 on Daysim:  
http://www.radiance-online.org/community/workshops/2012-copenhagen/Day1/Jakubiec/jakubiec,reinhart_radiance-workshop-presentation_daysim.pdf

If you are using DIVA on Windows, there are Daysim batch files you can  
open from the c:\DIVA\Temp\RhinoFileName\ folder after running a  
simulation in order to see how the programs are called.

For the 3/5-phase methods, I am no expert, but a good place to start is  
here,
http://www.radiance-online.org/learning/tutorials/fivephasetutorialfiles/Tutorial-FivePhaseMethod_v2.pdf
Others on the mailing list are highly expert in this.

Best,
Alstan

On Sat, 22 Nov 2014 15:24:16 +0800, David Davidson  
<this.is.david.davidson at gmail.com> wrote:

> Dear list,
>
> I wonder if anybody can kindly help to provide a step-by-step guidance  
> on how to use Radiance to conduct daylight coefficient based  
> "climate-based daylight >metrics" such as Daylight Autonomy, Daylight  
> Availability, Continuous Daylight Autonomy or Useful Daylight  
> Illuminance.
>> I know that there are several papers explaining the concept and  
>> process, and DIVA-for-Rhino is the tool for this. But I just wan to  
>> understand each step of the calculation >under the hood.
>
>> I want to digest a breakdown of the process, maybe in the form of a  
>> shell script file (Unix) or batch file (Windows), which explains each  
>> of the key steps and the Radiance >programs and respective parameters  
>> used, such as how daylight coefficient of a given sensor is calculated  
>> and by which Radiance program, when the gendaymtx and rcontrib >are  
>> used and what are their functions, and what is generated in each step  
>> and how it is used in later steps, etc.
>
>> I have a simple scene prepared describing a simple room with south  
>> facing window and some shading blinds. The scene file, material file  
>> and sensor file are shared in the >following link:
>
>> Material definitions:
> https://sites.google.com/site/thisisthedaviddavidson/files/materials.mat?attredirects=0&d=1
>
>> scene description:
> https://sites.google.com/site/thisisthedaviddavidson/files/scene.rad?attredirects=0&d=1
>
>> sensor file:
> https://sites.google.com/site/thisisthedaviddavidson/files/sensor.pts?attredirects=0&d=1
>
>> I hope you can give me some guidances using this simple example!
>
>> Thank you!
>
>> David
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