[esp-r] Re: dailight factors+cfd

Thu Feb 16 15:34:08 GMT 2012

Yes, I am starting from the cfg folder and the radpath is .../rad. The files are:

Prova1e.rcf
Prova1e_day_fa.df
Prova1e_day_fa.grd
Prova1e_day_fa
Prova1e_day_fa.rif
Prova1e_day_fa.sky
Prova1e_day_fa-glz.rad
Prova1e_day_fa-in.rad
Prova1e_day_fa-out.rad
Prova1e_day_fa-out.rad-

What do you think? Is there something missing? Let me know,

Arianna

-----Original Message-----
From: Geissler Achim [mailto:achim.geissler at fhnw.ch] 
Sent: 16 February 2012 15:20
To: Sdei Arianna; Lars O. Grobe; esp-r at lists.strath.ac.uk
Subject: AW: [esp-r] Re: dailight factors+cfd

Hi Arianna

you are starting up ESP-r from the /cfg/ folder of your project, correct? In the .cfg, the "radpath" is given as "../rad"? Which files *do* exist in your ../rad directory after doing a visualization?

Achim

> -----Ursprüngliche Nachricht-----
> Von: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r- 
> bounces at lists.strath.ac.uk] Im Auftrag von A.Sdei at brighton.ac.uk
> Gesendet: Donnerstag, 16. Februar 2012 16:08
> An: Lars O. Grobe; esp-r at lists.strath.ac.uk
> Betreff: [esp-r] Re: dailight factors+cfd
> 
> Hi,
> 
> this is what I have got in my .bashrc file:
> 
> PATH=/usr/local/bin:/usr/esru/esp-r/bin:${PATH}
> RAYPATH=.:/usr/local/lib/ray
> 
> the RAYPATH seems all right, I have changed and shortened the file 
> name but it doesn't seem to make a big difference. There are no .opt 
> nor .oct files into my rad folder. I will try to look for examples. 
> Let me know if you have any other idea,
> 
> thank you,
> 
> Arianna
> 
> -----Original Message-----
> From: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r- 
> bounces at lists.strath.ac.uk] On Behalf Of Lars O. Grobe
> Sent: 16 February 2012 14:48
> To: esp-r at lists.strath.ac.uk
> Subject: [esp-r] Re: dailight factors+cfd
> 
> Hi!
> 
> This is probably not related to file name length. Radiance has its 
> origins in Unix environments, so it did not inherit those DOS 
> conventions. However, there is a DEFINE in the sources limiting the 
> length of strings in general. It should be 128 characters in current 
> releases. So you should be far from reaching that limit.
> 
> Are you sure that the RAYPATH environment variable is set correctly on 
> your system, and that it includes "." (the current directory)?
> 
> Cheers, Lars.
> 
> > maybe check the possible length of file names. I could imagine that 
> > your name is too long (I don't really remember if all the radiance 
> > code uses the "default" file name length). That could be your 
> > problem (your name length including extension is 32 characters).
> >
> > Further ideas:
> > The .opt-file should be generated automatically. Check the /rad/ 
> > directory for any empty or differently named .opt.
> >
> > Try generating the missing .opt manually (use any example file 
> > present in the exemplars).
> >
> > Achim
> >
> > *Von:*esp-r-bounces at lists.strath.ac.uk
> > [mailto:esp-r-bounces at lists.strath.ac.uk] *Im Auftrag von 
> > *A.Sdei at brighton.ac.uk
> > *Gesendet:* Donnerstag, 16. Februar 2012 13:22
> > *An:* Gian Luca Brunetti; esp-r at lists.strath.ac.uk
> > *Betreff:* [esp-r] Re: dailight factors+cfd Thank you Gian Luca,
> >
> > I got into it, however it doesn't seem to work very well. When I 
> > generate daylight factors all the points have zeros as results and I 
> > read on esp-r radiance desktop (bottom left window):
> >
> > File doesn't exist
> >
> > rad/type2_phd_b6_trees_20_day_fa.opt
> >
> > and on xterm I get:
> >
> > rad error generating octree
> >
> > type2_phd_b6_trees_20_day_fa.oct removed
> >
> > rtrace: system - cannot expand '@type2_phd_b6_trees_20_day_fa_opt :
> no
> > such file or directory
> >
> > do you or anyone else know what this means and what the problems are 
> > and how to resolve them and get results for daylight factors with 
> > ESP-r? Any suggestion is greatly appreciated, thank you.
> >
> > Best,
> >
> > Arianna
> >
> > *From:*esp-r-bounces at lists.strath.ac.uk
> > [mailto:esp-r-bounces at lists.strath.ac.uk] *On Behalf Of *Gian Luca 
> > Brunetti
> > *Sent:* 16 February 2012 11:24
> > *To:* esp-r at lists.strath.ac.uk
> > *Subject:* [esp-r] Re: dailight factors+cfd
> >
> > Dear Arianna,
> > to get daylight factors with Radiance from ESP-r, choose 
> > browse/simulate
> > -> simulation -> visual impact -> daylight factors.
> >
> > After that, I think that if you want to get daylight factors plotted 
> > as numbers, the menus are self-explaining.
> >
> > I don't know how to plot daylight factors as countour lines from ESP-r.
> > But I did not look for a way to do it yet.
> >
> > Best regards
> >
> > Gian Luca
> >
> > Gian Luca Brunetti
> > Politecnico di Milano
> > Dipartimento BEST
> > via Bonardi 11
> > 20133 Milano
> > tel./fax 02 2399 5750
> >
> > Il 15/02/2012 19.58, A.Sdei at brighton.ac.uk 
> > <mailto:A.Sdei at brighton.ac.uk> ha scritto:
> >
> > Dear All, I can now use radiance desktop via ESP-r and create and 
> > view images. I need to find daylight factors, does anyone know how? 
> > I would also need to do some ventilation study and I was thinking of 
> > using the cfd facility within esp-r.  I would need to do some tests 
> > with and without trees, is there a parameter such as porosity within 
> > esp-r which I can use to better define the trees that at the moment 
> > are just blocks of solid obstruction? Let me know,
> >
> > kind regards
> >
> > Arianna
> >
> > *Arianna Sdei*
> > *Architect, MPhil (Cantab)*
> > *University of Brighton *
> > *Research Fellow, IFORE Project*
> > *PhD Fellow*
> 
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