Online computing of summary results from photometric files of luminaires and of plots of ground illuminance by them

[ICO]NameLast modifiedSizeDescription

[PARENTDIR]Parent Directory  -  
[   ]LLD30WD_IESNA2002.IES2015-11-22 19:02 63K 
[   ]curr_lum.ies2001-12-19 11:45 11Klum. photometry file
[   ]curr_lum.ldt2015-11-21 19:02 7.4Klum. photometry file
[IMG]curr_lum.png2015-11-21 19:02 2.6Killuminance plot
[TXT]curr_lum.txt2015-11-21 19:02 8.7Ktabular ouput
[   ]ies2tab.hlp2013-07-01 14:42 3.0K 
[TXT]ies_sum.sh2013-03-28 19:23 670  
[   ]ies_v.php2015-11-21 18:27 6.8KOnline computing
[TXT]ies_v.php.txt2012-11-11 00:26 6.3Ktext of the php
[   ]ies_vexp.php2015-11-21 19:06 6.9K 
[TXT]ies_view_php.sh2013-03-28 19:18 742 (running ies2tab)
[IMG]lum.png2006-05-18 10:28 1.9K(illuminance scale)

The online computation by ies_v.php is based on the ies2tab programme, as available in the light/ies2 directory.

Conversion from ies to eulumdat format (and perhaps even some eulumdat inputs) may fail, as the symmetries of that format are an enigma for me (as far as I know, the format is undocumented, apart from a thorough but still incomplete description kindly written by Ian Ashdown). Also, what's meant by 0 and what by 90 degrees azimuth, is confused often. The illuminance plots may help to resolve it in each case.

The software applied in this directory is under GNU public license.

Jan Hollan, January 2007