TOCHUNKY(1) Impressario TOCHUNKY(1)NAMEtochunky - Convert an SGI image to CHUNKY printer data format
SYNOPSIStochunky [ -P printer_database ]
[ -a xsize ysize ]
[ -l xdpi ydpi ]
[ -d K, CMY, or CMYK ]
[ -z zoomfactor ] inimage.rgb
DESCRIPTIONtochunky converts an SGI image file into SGI CHUNKY data format, for use
by CHUNKY format printer drivers. However, the SGI CHUNKY chunky format
has been superseded by Stream TIFF (STIFF). Conversions from SGI Image
File format to STIFF are most efficiently accomplished by converting from
SGI Image File format to PostScript using the program sgi2ps and then
converting the PostScript to STIFF using the program psrip.
New development work should not use the SGI CHUNKY format.
PROGRAM USAGE
By default, tochunky assumes a zoomfactor of 1.0, and thus scales the
image to be printed as large as possible without cropping.
The -P option is followed by the full path to the printer's POD this
option is given all settings except the zoomfactor are filled in from the
config file, and need not be given unless the user wishes to override the
settings in the POD database.
The -a option specifies the printer's imageable area in dots in the
horizontal (xsize) and vertical (ysize) directions. These values are
normally derived from the POD database, which is kept up to date with the
currently loaded paper size.
The -l option specifies the printer resolution in dots per inch in the
horizontal (xdpi) and vertical (ydpi) directions. These values are
normally derived from the POD database, which is kept up to date with the
current printer configuration.
The -d option specifies the printer data format, one of the following: K
(black only), CMY (CMY only), or CMYK (CMYK data). The data format is
normally derived from the POD database, which is kept up to date with the
current printer configuration.
If the -z option is given, then the image will be resized based on
zoomfactor. Zoomfactor is a floating point value between 0.0 and 1.0,
inclusive. The zoomfactor argument specifies a relative scaling: the
scaling is proportional to the area of page which should be filled, and
zoomfactor may be considered to be a percentage fill argument when its
value is between 0.01 and 1.00. However, -z 0.0 is the exception to the
rule: -z 0.0 indicates that tochunky should not zoom the image, but
should print exactly one printer dot per image pixel.
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TOCHUNKY(1) Impressario TOCHUNKY(1)
The resultant image is never cropped and is always centered on the page.
SEE ALSOsgi2ps(1), psrip(1)KNOWN BUGS
1. The -P option currently requires a full pathname to the printer's
require just the printer name.
2. The -z option does not currently rotate the image if the image could
be printed larger when printed 90 degrees rotated.
3. Since the -p ppi "pixels per inch" option is not implemented,
setting the -l option will have no effect on the output image.
FILES
/usr/lib/print/tochunky Program file
TRADEMARKS
PostScript is a registered trademark of Adobe Systems, Inc.
WARNING
This program has been obsoleted. All new development should be done with
sgi2ps and psrip and should use the STIFF file format. The tochunky
program is provided for compatibility with previous releases of the
Impressario product and may be removed from future releases.
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