GIF preview of Merge4.eps
Above is page preview only. Download the PDF or EPS version for high quality printing.

Following is a detailed description on how the KnotPlot script was used to generate the files on this page. Example shown is for letter size paper. See the note (right) about printing to A4 paper. If you're only generating an EPS file for inclusion in another document, then you don't need to worry about setting the pagesize.

Run KnotPlot in non-graphics mode to generate the EPS file.

knotplot -nog < Merge4.kps

One could instead run KnotPlot in graphics mode and enter the following command into the KnotPlot Command Window


We now have the file Merge4.eps which could be printed directly on a PostScript printer. For printing to a non-PostScript printer, generate a PDF file Merge4.pdf from the EPS file Merge4.eps using Ghostscript.

# Note: enter the following three lines on one command line
gs -dCompatibilityLevel=1.3 -q -dNOPAUSE -dBATCH
   -sPAPERSIZE=letter -sDEVICE=pdfwrite
   -sOutputFile=Merge4.pdf -c .setpdfwrite -f Merge4.eps

The remainder of this example shows how the preview image seen above was created. This is useful for including an image on a web page or in a presentation. Printing the EPS or PDF file will give much higher quality than printing the preview image. These files, Merge4.eps and Merge4.pdf, as well as their counterparts for A4 paper, Merge4_a4.eps and Merge4_a4.pdf, can be downloaded using the links in the right hand panel on this page.

# run Ghostscript to generate a temporary PPM file
# Note: enter the following two lines on one command line
gs -q -dNOPAUSE -dBATCH -sPAPERSIZE=letter -sDEVICE=ppmraw
   -sOutputFile=Merge4.ppm -r200 -f Merge4.eps
# scale it down using ImageMagick convert command
convert -resize 600x Merge4.ppm Merge4S.ppm
# reduce the number of distinct colours and create the gif
convert -colors 32 Merge4S.ppm Merge4.gif
# delete temporary files
/bin/rm Merge4.ppm Merge4S.ppm
Page created at Sat 9 Mar 2019 01:49:02 UTC
Copyright © 2019 by Robert G. Scharein
css  xhtml

KnotPlot script that generated the Encapsulated PostScript (EPS) file:

% KnotPlot script: Merge4.kps
% Sat 09 Mar 2019 01:49:02 UTC

load 3.1
psoption phantom .4

pszinfo = t
psoption patch X
psout orange

draw broke

psoption patch Patch
psout blacksquares

.merge-psout --delete orange blacksquares Merge4

% End of KnotPlot script

This script generates a EPS file (download below) suitable for printing on letter size paper. For printing on A4 size paper, use the command psop pagesize a4 prior to the psout command.

Download a high quality PDF or EPS file (for either letter or A4 size paper):

The PDF files and the preview image seen on this page were generated from the EPS files using Ghostscript (details in left panel on this page).

This script requires the csh-script merge-psout that can be found in the resource/generic directory in the KnotPlot distribution. It will work as shown in the above script on any POSIX-compliant operating system (MacOSX, Linux and Cygwin or MinGW on Windows) if merge-psout is in the user's path.