[Radiance-general] vertical illuminance using Radiance

[Greg Ward]

Yes.

If you want more details, you'll have to ask a more detailed question, describing your input (do you have a weather tape?) and how you want to average or accumulate your data (any operable systems in play?), etc.

-Greg

> From: Hugo Testolini <hugo.testolini at gmail.com>
> Date: January 23, 2014 3:18:03 PM PST
> 
> Is it possible to calculate cumulative daily lux by month with radiance?
> 
> 
> On 19 January 2014 22:02, Vaib <vaibhavjain.co at gmail.com> wrote:
> Hi, 
> 
> You can give the direction vector in rtrace command to get irradiance value. Check rtrace manual. 
> For example: If you assign input arguments "xorg yorg zorg xdir ydir zdir" as "xorg yorg zorg 0 0 1" then you will get irradiance at the horizontal plane (or floor of the building). Similarly, you can do for other vertical planes by assigning their correct location and direction. To convert irradiance to illuminance, see this command:
> 
> $ echo xorg yorg zorg xdir ydir zdir | rtrace -I [options] yourScene.oct | rcalc -e ’$1=$2;$2=179*(.265*$4+.670*$5+.065*$6)’
> 
> Regards,
> Vaib
> 
> 
> On 20 January 2014 00:41, Hana Al-Jawder <hana.al-jawder at sydney.edu.au> wrote:
> Hi all,
> 
>  
> 
> Does anyone know of a way to get vertical illuminance at a specific point in Radiance?
> 
> Thanks,
> 
>  
> 
> Hana
> 
> 
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