home *** CD-ROM | disk | FTP | other *** search
-
-
-
- iff2ps(1) USER COMMANDS iff2ps(1)
-
-
-
- NAME
- iff2ps - IFF to PostScript filter
-
- SYNTAX
- iff2ps [ options ] [ IFFfile [ PSfile ] ]
-
- DESCRIPTION
- The iff2ps command takes an IFF ILBM file as input and pro-
- duces a PostScript file that may be sent to a PostScript
- printer (e.g., an Apple LaserWriter) for printing. The
- image portion in the PostScript file is compressed.
- Decompression is done by the PostScript interpreter within
- the printer. If no files are given on the command line, the
- standard input is read, and the standard output is written
- to. If only one file is given on the command line, then
- that file must be an IFF file, and the standard output is
- written to. Note that you cannot specify a PostScript out-
- put file and have standard input read. The output file con-
- forms to the Adobe 2.0 file structuring conventions. The
- options may appear before or after the file names.
-
- The program correctly handles any ILBM format. Specifi-
- cally, the image in the IFF file can be any size, can have any number of bitplanes, and all CAMG view modes are sup-
- ported (i.e., low resolution, high resolution, interlace,
- HAM, double playfield, and HALFBRITE). However, it is noted
- that currently double playfield files are not printed quite
- correctly since both fields are printed on top of each
- other.
-
- The following options may be used to control the formatting
- of the image.
-
- -a Append output to a previously produced PostScript
- file. This options allows the placement of multi-
- ple images on the same output page. The default
- is FALSE.
-
- -c_n Number of copies. The practical upper limit on
- the number of copies is governed by the number of
- sheets which the printer paper tray will hold. If
- you want multiple copies of the same image, use
- this option instead of running iff2ps multiple
- times as it is orders of magnitude faster. The
- default value is 1.
-
- -e This option enables echoing of the translation
- progress. The default is FALSE.
-
- -f Use this option if the output file if to be encap-
- sulated and used by some other application which
- can import PostScript images. The default is
-
-
-
- Sun Release 3.5 Last change: October 31, 1988 1
-
-
-
-
-
-
- iff2ps(1) USER COMMANDS iff2ps(1)
-
-
-
- FALSE.
-
- -g_n Number of gray shades to be used in the half-toned
- image. There are only four possible values for
- the number of gray shades: 2, 4, 16, 256. If this
- option is omitted, the next number greater than or
- equal to the number of colors in the IFF file will
- be used. For example: a 320 by 200 pixel by 5 bit
- planes (32 colors) picture would default to 256
- gray shades while a 640x400x4 (16 color) image
- would default to 16 gray shades. If an image con-
- tains a pure white color, it will be rendered as
- pure white in the half-toned print. To obtain a
- half-toned white (99 percent of pure white)
- instead of pure white, enter the number of gray
- shades as a negative number. Special effects (and
- smaller output files) can be obtained by choosing
- fewer gray shades than the numbers of colors in
- the original picture. Choosing 2 shades will
- result in a high contrast image while choosing 4
- shades for a picture with greater than 4 colors
- will result in a posterized effect.
-
- -n Negative image. Can be used with any number of
- gray shades. The default is FALSE.
-
- -p The image is printed in portrait mode if this
- option is selected. The default is FALSE in which
- case the image is printed in landscape mode.
-
- -r_n This option specifies the rotation angle. The
- image is rotated _n degrees counterclockwise. The
- default is 0 degrees.
-
- -s_n,-t_n These options specify the x and y coordinate
- scales in printer Points (72 Points = 1 inch).
- The defaults are 0, in which case the scales are
- automatically chosen so as to give the largest
- image for the current format.
-
- -x_n,-y_n These options enable the placement of the coordi-
- nate origin at a specified location given in
- printer Points. The defaults are such as to give
- a centered image on the page regardless of the
- current format.
-
- ? This option will echo the command format to the
- screen.
-
- Defaults for all command line arguments can be specified in
- the configuration file iff2ps.cfg which should be placed in
- S:. If iff2ps is run and a configuration file exists, then
-
-
-
- Sun Release 3.5 Last change: October 31, 1988 2
-
-
-
-
-
-
- iff2ps(1) USER COMMANDS iff2ps(1)
-
-
-
- it is read to set up the program's defaults. Switches on
- the command line, though, will always override the confi-
- guration switches. The configuration file consists of lines
- in which the initial character in each line specifies the
- command. If the initial character is a space, an asterisk,
- a pound sign, a semicolon, or a line feed, the line is
- ignored. This makes it useful for commenting the file.
- White space following the command is optional. Comments can
- also be placed on the individual lines after the complete
- command is specified.
-
- DIAGNOSTICS
- If the IFF ILBM file makes use of a specific Amiga view mode
- such as HAM, HALFBRITE, or dual playfield, a CAMG chunk
- should be present in the file. If it is not present, then
- iff2ps must guess the the view mode. In most circumstances
- iff2ps will make the right guess and echo ``No CAMG chunk!
- Guessing ViewModes.'' to the screen. If such files were
- generated by a commercial program, the user is highly
- encouraged to contact the distributor of the software pro-
- duct and complain about the improper IFF file generated.
- Only through such efforts can we hope to see better software
- on the Amiga.
-
- BUGS
- Dual playfield files are printed incorrectly. Both fields
- are printed on top of each other without masking.
-
- FILES
- iff2ps.cfg configuration file
-
- SEE ALSO
- tek2ps(1)
-
- COPYRIGHT
- Copyright (c) 1987, 1988 William Mason and Samuel Paolucci.
- All rights reserved. This program can be freely redistri-
- buted provided the documentation accompanies the program,
- and is not included with any commercial software without the
- authors' written consent. This program is distributed
- WITHOUT ANY WARRANTY.
-
- AUTHORS
- William Mason and Samuel Paolucci. Special thanks to Tomas
- Rokicki for allowing us to use his PostScript compression
- routine.
-
-
-
-
-
-
-
-
-
- Sun Release 3.5 Last change: October 31, 1988 3
-
-
-
-