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.\" RCSid "$Id" |
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.\" RCSid "$Id$" |
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.TH IES2RAD 1 6/14/96 RADIANCE |
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.SH NAME |
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ies2rad - convert IES luminaire data to RADIANCE description |
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looks at the header lines of the IES file to try and determine |
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what lamp is being used in the fixture. |
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If any of the lines is matched by a pattern in the lamp lookup |
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table (see the -f option above), that color and depreciation factor will |
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be used instead of the default (see the -c and -u options). |
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table (see the \-f option above), that color and depreciation factor will |
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be used instead of the default (see the \-c and \-u options). |
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The |
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.I lamp |
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specification is also looked up in the lamp table unless it is |
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set to "default", in which case the default color is used instead. |
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.TP |
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.BI -c " red grn blu" |
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.BI \-c " red grn blu" |
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Use the given color if the type of the lamp is unknown or |
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the -t option is set to "default". |
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the \-t option is set to "default". |
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If unspecified, the default color will be white. |
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.TP |
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.BI -u \ lamp |
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.BI \-u \ lamp |
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Set the default lamp color according to the entry for |
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.I lamp |
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in the lookup table (see the -f option). |
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in the lookup table (see the \-f option). |
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This is the color that will be used if the input specification |
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does not match any lamp type patterns. |
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This option is used instead of the -c option. |
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This option is used instead of the \-c option. |
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.TP |
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.BI -m \ factor |
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.BI \-m \ factor |
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Multiply all output quantities by |
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.I factor. |
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This is the best way to scale fixture brightness for different lamps, but care |
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and 15% lumen depreciation, |
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creating the files "fluor01.rad" and "fluor01.dat" in the current directory: |
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.IP "" .2i |
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ies2rad -di -t default -m .85 fluor01.ies |
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ies2rad \-di \-t default \-m .85 fluor01.ies |
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.PP |
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To convert three IES files of various types to tenths of a foot and put |
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them in the library "/usr/local/lib/ray" subdirectory "source/ies": |
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.IP "" .2i |
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ies2rad -df/10 -l /usr/local/lib/ray -p source/ies ies01 ies02 ies03 |
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ies2rad \-df/10 \-l /usr/local/lib/ray \-p source/ies ies01 ies02 ies03 |
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.PP |
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To convert a single file and give the output a different name: |
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.IP "" .2i |
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ies2rad -o fluorescent ies03 |
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ies2rad \-o fluorescent ies03 |
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.SH ENVIRONMENT |
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RAYPATH directories to search for lamp lookup table |
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.SH AUTHOR |
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Greg Ward |
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.SH BUGS |
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In pre-1991 standard IES files, all header lines will be examined |
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In pre\-1991 standard IES files, all header lines will be examined |
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for a lamp table string match. |
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In post-1991 standard files, only those lamps with the [LAMP] or |
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In post\-1991 standard files, only those lamps with the [LAMP] or |
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[LAMPCAT] keywords will be searched. |
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The first match found in the file is always the one used. |
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This method of assigning colors to fixtures is less than perfect, |
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and the IES would do well to include explicit spectral information |
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somehow in their specification. |
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.PP |
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The IESNA LM-63 specification prior to 1995 provided three basic source |
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The IESNA LM\-63 specification prior to 1995 provided three basic source |
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shapes, rectangular, round, and elliptical. |
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The details of these shapes is vague at best. |
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Rectangular sources will always be rectangular, but ies2rad will |
