[esp-r] Re: dailight factors+cfd

[Geissler Achim]

Hi Lars

my bad. The full sentence should read "[...] radiance-related code in ESP-r [...]". The book-keeping for the radiance calls and whatnot is deeply embedded in ESP-r code.

Achim


> -----Ursprüngliche Nachricht-----
> Von: esp-r-bounces at lists.strath.ac.uk [mailto:esp-r-
> bounces at lists.strath.ac.uk] Im Auftrag von Lars O. Grobe
> Gesendet: Donnerstag, 16. Februar 2012 15:48
> An: esp-r at lists.strath.ac.uk
> Betreff: [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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