| 15 |
|
converts one or more IES luminaire data files to the equivalent RADIANCE |
| 16 |
|
scene description. |
| 17 |
|
The light source geometry will always be centered at the origin aimed |
| 18 |
< |
in the negative z direction, with the 0 degree plane along the x axis. |
| 18 |
> |
in the negative Z direction, with the 0 degree plane along the X axis. |
| 19 |
> |
(Note, this means that the IES "width" is actually along the Y axis, |
| 20 |
> |
while "length" corresponds to the X axis.)\0 |
| 21 |
|
Usually, two output files will be created for every input file, one |
| 22 |
|
scene file (with a ".rad" suffix) and one data file (with a ".dat" |
| 23 |
|
suffix). |
| 148 |
|
looks at the header lines of the IES file to try and determine |
| 149 |
|
what lamp is being used in the fixture. |
| 150 |
|
If any of the lines is matched by a pattern in the lamp lookup |
| 151 |
< |
table (see the -f option above), that color and depreciation factor will |
| 152 |
< |
be used instead of the default (see the -c and -u options). |
| 151 |
> |
table (see the \-f option above), that color and depreciation factor will |
| 152 |
> |
be used instead of the default (see the \-c and \-u options). |
| 153 |
|
The |
| 154 |
|
.I lamp |
| 155 |
|
specification is also looked up in the lamp table unless it is |
| 156 |
|
set to "default", in which case the default color is used instead. |
| 157 |
|
.TP |
| 158 |
< |
.BI -c " red grn blu" |
| 158 |
> |
.BI \-c " red grn blu" |
| 159 |
|
Use the given color if the type of the lamp is unknown or |
| 160 |
< |
the -t option is set to "default". |
| 160 |
> |
the \-t option is set to "default". |
| 161 |
|
If unspecified, the default color will be white. |
| 162 |
|
.TP |
| 163 |
< |
.BI -u \ lamp |
| 163 |
> |
.BI \-u \ lamp |
| 164 |
|
Set the default lamp color according to the entry for |
| 165 |
|
.I lamp |
| 166 |
< |
in the lookup table (see the -f option). |
| 166 |
> |
in the lookup table (see the \-f option). |
| 167 |
|
This is the color that will be used if the input specification |
| 168 |
|
does not match any lamp type patterns. |
| 169 |
< |
This option is used instead of the -c option. |
| 169 |
> |
This option is used instead of the \-c option. |
| 170 |
|
.TP |
| 171 |
< |
.BI -m \ factor |
| 171 |
> |
.BI \-m \ factor |
| 172 |
|
Multiply all output quantities by |
| 173 |
|
.I factor. |
| 174 |
|
This is the best way to scale fixture brightness for different lamps, but care |
| 178 |
|
and 15% lumen depreciation, |
| 179 |
|
creating the files "fluor01.rad" and "fluor01.dat" in the current directory: |
| 180 |
|
.IP "" .2i |
| 181 |
< |
ies2rad -di -t default -m .85 fluor01.ies |
| 181 |
> |
ies2rad \-di \-t default \-m .85 fluor01.ies |
| 182 |
|
.PP |
| 183 |
|
To convert three IES files of various types to tenths of a foot and put |
| 184 |
|
them in the library "/usr/local/lib/ray" subdirectory "source/ies": |
| 185 |
|
.IP "" .2i |
| 186 |
< |
ies2rad -df/10 -l /usr/local/lib/ray -p source/ies ies01 ies02 ies03 |
| 186 |
> |
ies2rad \-df/10 \-l /usr/local/lib/ray \-p source/ies ies01 ies02 ies03 |
| 187 |
|
.PP |
| 188 |
|
To convert a single file and give the output a different name: |
| 189 |
|
.IP "" .2i |
| 190 |
< |
ies2rad -o fluorescent ies03 |
| 190 |
> |
ies2rad \-o fluorescent ies03 |
| 191 |
|
.SH ENVIRONMENT |
| 192 |
|
RAYPATH directories to search for lamp lookup table |
| 193 |
|
.SH AUTHOR |
| 194 |
|
Greg Ward |
| 195 |
|
.SH BUGS |
| 196 |
< |
In pre-1991 standard IES files, all header lines will be examined |
| 196 |
> |
In pre\-1991 standard IES files, all header lines will be examined |
| 197 |
|
for a lamp table string match. |
| 198 |
< |
In post-1991 standard files, only those lamps with the [LAMP] or |
| 198 |
> |
In post\-1991 standard files, only those lamps with the [LAMP] or |
| 199 |
|
[LAMPCAT] keywords will be searched. |
| 200 |
|
The first match found in the file is always the one used. |
| 201 |
|
This method of assigning colors to fixtures is less than perfect, |
| 202 |
|
and the IES would do well to include explicit spectral information |
| 203 |
|
somehow in their specification. |
| 204 |
|
.PP |
| 205 |
< |
The IESNA LM-63 specification prior to 1995 provided three basic source |
| 205 |
> |
The IESNA LM\-63 specification prior to 1995 provided three basic source |
| 206 |
|
shapes, rectangular, round, and elliptical. |
| 207 |
|
The details of these shapes is vague at best. |
| 208 |
|
Rectangular sources will always be rectangular, but ies2rad will |
