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Dear devs,
I have put up a work-in-progress version of epw2wea:
http://www.jaloxa.eu/pickup/epw2wea.exe
http://www.jaloxa.eu/pickup/epw2wea.pl
The output is almost identical to the Windows version of epw2wea.exe. I
am not entirely sure where this is from, but it is in the NREL version
of Radiance for Windows.
There are three minor differences to the original Windows version:
a) there is a -c (as in 'CSV') option that simply dumps the entire file
as a text spreadsheet with header. The delimiter defaults to ' '
(space), but can selected with the -d option. Please note that if you
wish to have a tab-sep output, then '\t' won't do. Still working out how
to do this. For now, you'll need to give it -c 'CTRL-v TAB' to actually
insert a tab on the command line.
I would like to think that a CSV dump of the EPW weather data will make
it a little easier to do a bit of QA on the data. Hence this extra option.
b) the 'meridian' bug of the original epw2wea is fixed. Places such as
Delhi (GMT + 5:30 hrs) or Kathmandu (GMT +5:45 hrs) are correctly
represented in the time_zone row of the wea header.
c) input can be from STDIN
epw2wea.pl is tested on LINUX and Windows Vista.
Any feedback is very much appreciated. Particularly, I'd love to know
your preferred naming convention for the columns in the CSV output. The
radiation stuff tends to follow CIE conventions. For instance, global
horizontal irradiance is headed as Eeg. I kinda improvised with others,
but tended to be rather verbose with those column headers that I would
consider a little obscure, for the simple reason that I don't tend to
use them. Please do get in touch if there are any other de-facto naming
convention that should be adapted.
dev site:
http://www.jaloxa.eu/devel/csh2perl/
Good night to you all
Axel
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