Radiance for ECOTECT

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Hi Robert,

Thank you for the last discussion.

After installing the Radiance Windows (32bit) from NREL's website, I find
that there are no executable files for falsecolor.exe and rview.exe in the
bin folder. Do you know why? Has there been any change in the new version?
Thank you!

Best regards,
Vaibhav Jain

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Hi Vaibhav,

That's because falsecolor is actually a Perl script, so it appears as "falsecolor.pl" in your radiance/bin folder, and rview was renamed "rvu.exe" a number of years ago due to a common naming conflict with an alias to vi on unix systems. The objview script has also been reimplemented in Ruby so Windows users can enjoy that utility as well.

Of course this means that to use falsecolor.pl, you need Perl installed on your system, and to use objview.rb, you need Ruby (recommend version 1.8.7) installed. Not sure if the bldg-sim list accepts attachments, so I'll send you our latest Radiance install instructions in a separate email.

Happy raytracing!

Rob Guglielmetti

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I had this same issue today. I found this PDF which helped:
https://openstudio.nrel.gov/files/Radiance_Installation_Instructions_0_9_0.pdf
I clicked the link for ActivePerl (http://www.activestate.com/activeperl),
Downloaded/Installed it and was good to go.

The only tricky step was that I needed to type "falsecolor.pl" not
"falsecolor" into the command editor.

And just for reference the error I got before was:
"'falsecolor' is not recognized as an internal or external
command, operable program or batch file."

Hope this helps!

Regards,

*Alex Krickx, LEED AP*

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Joined: 2012-05-16
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You can get rid of the need to add the .pl extension by "associating" .pl with the ActivePerl installation. The ActiveState installer offers that as an option when you install it, but here's a reference that shows you how to do it after the fact:

http://www.ehow.com/how_2073279_associate-extensions-windows-files.html

Happy falsecoloring. =8-)

P.S. We have a revised Radiance installation doc which should be up on the website soon?

Rob Guglielmetti

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Rob, 

I am trying to import the illumination values of a Radiance image: https://www.dropbox.com/s/owvm7gqtamicdou/analysis%20grid.pdf

into an Ecotect analysis grid so that I can extract the values into an Excel file and create a graph.  Any help will be greatly appreciated.  Feel free to suggest other approachs to achieving the desired goal.  Ultimately I am trying to compare the performance of multiple light shelf configurations.

Shamim Javed

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