I hope this is the correct list for users of Radiance through Ecotect.
I am trying to calculate DGI for a specific camera view - position.
I calculate the luminance using Radiance through Ecotect. Then the
generated pic file I copy it in the command prompt starting file. There I
copy the following command that is the ulim
that is: fl2cd(v)=3.426*v;cd2fl(v)=0.292*v;ulim(La)=fl2cd(10^(5.731+(log10(cd2fl(La))+5)*(0.3376+(log10(cd2fl(La))+5)*0.0189)-6));
Then I Type the following in the command prompt for my file that is called
(ex2)
findglare -p ex2_c1.pic -t 100000|glarendx -h -t vert_ill|rcalc -f
ulim.cal -e '$1=ulim($2/PI)'
Then I get the following message:
findglare: picture read error
'$1=ulim($2/PI)'
^ illegal variable name
Do you have any idea why this is happening?
Thank you in advance
MAria
Hi Maria,
you can also use evalglare to evaluate glare within (fish-eye) images.
Besides DGI, it calculates also the Daylight Glare Probability DGP, which might be a more reliable glare evaluation method than the DGI.
If you have non-fish-eye images only, it is from my point of view very difficult to get a reliable glare evaluation since you miss parts of the field of view.
You can download evalglare here - a short description is within the zip file:
http://www.ise.fraunhofer.de/radiance
Jan
···
On 11/13/2012 05:00 PM, Maria Mandalaki wrote:
Thanks Raphael!
But I am not ready for that!
Maria
On Tue, Nov 13, 2012 at 5:55 PM, Maria Mandalaki <[email protected] > <mailto:[email protected]>> wrote:
Thanks Alstan, I will check it!
But I hope to find an easier way to just run findglare!
Regards,
Maria
On Tue, Nov 13, 2012 at 5:27 PM, J. Alstan Jakubiec > <[email protected] <mailto:[email protected]>> wrote:
Hi Maria,
Unfortunately obtaining Windows binaries for Radiance is a bit
of a circuitous path. The NREL OpenStudio team maintains a
nice collection however which can be downloaded below,
OpenStudio
Best,
Alstan
On Tue, 13 Nov 2012 10:02:39 -0500, Maria Mandalaki > <[email protected] <mailto:[email protected]>> wrote:
That should be exactly the problem! Thank you a lot Raphael!
Yes I use radiance on windows.
Where can I find the Desktop Radiance 4.1? There is only
the 2.0 beta
version on the web site.
Can I simply update my version (2.0 Beta version)?
Maria
On Tue, Nov 13, 2012 at 3:01 PM, Compagnon Raphaël < > [email protected] > <mailto:[email protected]>> wrote:
Hi
Apparently your are using RADIANCE on a Windows
system. I have just found
this sentence in the latest Radiance release note
(version 4.1)
http://radsite.lbl.gov/radiance/refer/Notes/ReleaseNotes.html#Version%204.1
Fixed bug in findglare for reading picture files under
Windows.
I think the bug you are experiencing is exacly this
one! Then you should
update your Radiance software with the latest
release... or start using
Radiance on a Linux system.
Hope this will help you.
Raphaël
________________________________
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_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general
--
Dr.-Ing. Jan Wienold
Head of Team Passive Systems and Daylighting
Fraunhofer-Institut für Solare Energiesysteme
Thermal Systems and Buildings
Heidenhofstr. 2, 79110 Freiburg, Germany
Phone: +49(0)761 4588 5133 Fax:+49(0)761 4588 9133
[email protected]
In office:
Mo,Tue: 8:30-18:00
We,Thu: 8:30-16:00
Fr: 8:30-15:30
One other comment -
If you doing this in DOS on windows then you probably need to use double
quotes in the rcalc command like this:
... | rcalc -f ulim.cal -e "$1=ulim($2/PI)"
···
On Mon, Nov 12, 2012 at 11:58 PM, Maria Mandalaki <[email protected]> wrote:
I hope this is the correct list for users of Radiance through Ecotect.
I am trying to calculate DGI for a specific camera view - position.
I calculate the luminance using Radiance through Ecotect. Then the
generated pic file I copy it in the command prompt starting file. There I
copy the following command that is the ulim
that is: fl2cd(v)=3.426*v;cd2fl(v)=0.292*v;ulim(La)=fl2cd(10^(5.731+(log10(cd2fl(La))+5)*(0.3376+(log10(cd2fl(La))+5)*0.0189)-6));
Then I Type the following in the command prompt for my file that is called
(ex2)
findglare -p ex2_c1.pic -t 100000|glarendx -h -t vert_ill|rcalc -f ulim.cal -e '$1=ulim($2/PI)'
Then I get the following message:
findglare: picture read error
'$1=ulim($2/PI)'
^ illegal variable name
Do you have any idea why this is happening?
Thank you in advance
MAria
_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general
Thanks to all,
I will try this as well!
MM
···
On Tue, Nov 13, 2012 at 10:04 PM, Andrew McNeil <[email protected]> wrote:
One other comment -
If you doing this in DOS on windows then you probably need to use double
quotes in the rcalc command like this:
... | rcalc -f ulim.cal -e "$1=ulim($2/PI)"
On Mon, Nov 12, 2012 at 11:58 PM, Maria Mandalaki <[email protected]>wrote:
I hope this is the correct list for users of Radiance through Ecotect.
I am trying to calculate DGI for a specific camera view - position.
I calculate the luminance using Radiance through Ecotect. Then the
generated pic file I copy it in the command prompt starting file. There I
copy the following command that is the ulim
that is: fl2cd(v)=3.426*v;cd2fl(v)=0.292*v;ulim(La)=fl2cd(10^(5.731+(log10(cd2fl(La))+5)*(0.3376+(log10(cd2fl(La))+5)*0.0189)-6));
Then I Type the following in the command prompt for my file that is
called (ex2)
findglare -p ex2_c1.pic -t 100000|glarendx -h -t vert_ill|rcalc -f ulim.cal -e '$1=ulim($2/PI)'
Then I get the following message:
findglare: picture read error
'$1=ulim($2/PI)'
^ illegal variable name
Do you have any idea why this is happening?
Thank you in advance
MAria
_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general
_______________________________________________
Radiance-general mailing list
[email protected]
http://www.radiance-online.org/mailman/listinfo/radiance-general