rletops - Convert RLE images to PostScript
rletops [ -C ] [ -a aspect ] [ -c
center ] [ -h height ] [ -o outfile.ps ] [
-s ] [ infile ]
Rletops converts RLE(5) images into PostScript. The
conversion uses the PostScript image operator, instructing the
device to reproduce the image to the best of its abilities. If infile
isn't specified, the RLE image is read from stdin. The PostScript output is
dumped to stdout, or to outfile.ps, if specified.
- -a aspect
- Specify aspect ratio of image. Default is 1.0 (note PostScript uses square
pixels).
- -C
- Causes a color PostScript image to be generated. This creates larger files
and uses the PostScript colorimage operator, which is not
recognized by all devices. The default is monochrome.
- -c center
- Centers the images about a point center inches from the left edge
of the page (or left margin if -s is specified). Default is 4.25
inches.
- -h height
- Specifies the height (in inches) the image is to appear on the page. The
default is three inches. The width of the image is calculated from the
image height, aspect ratio, and pixel dimensions.
- -s
- Specifies image is to be generated in "Scribe Mode." The image
is generated without a PostScript showpage operator at the end, and
the default image center is changed to 3.25 inches from the margin (which
usually is 1 inch). This is to generate PostScript files that can be
included in Scribe documents with the @Picture command. Images may also be
included in LaTex documents with local conventions like the
\special{psfile=image.ps} command.
On devices like the Apple LaserWriter, rletops generates large PostScript
files that take a non-trivial amount of time to download and print. A 512x512
image takes about ten minutes. For including images in documents at the
default sizes, 256x256 is usually sufficient resolution.
Rod Bogart, John W. Peterson, Gregg Townsend.
Portions are based on a program by Marc Majka.
Due to a mis-understanding with the PostScript interpreter, rletops
always rounds the image size up to an even number of scanlines.