contributed scripts and other files for gnuplot

Table of contents:

PostScript prolog files

fixbb: This script fixes bounding box size of (encapsulated) postscript files (useful not only for gnuplot output, works also on multipage documents). It is needed as most postscript-producing applications do not estimate the box size correctly, and the size is a must for figure inclusion to other documents, for example LaTeX. Usage:
```
	fixbb *.eps
	
```
pm3dCompress.awk: This awk script tries to shorten postscript file with a pm3d map or surface. It replaces most frequent commands by short definitions, making the file size twice smaller. Usage:
```
	awk -f pm3dCompress.awk _original_.ps >reduced.ps
	
```
pm3dConvertToImage.awk: This awk script tries to shorten maps in a postscript file created by set pm3d map. If the input data formed a rectangular equidistant grid (matrix), then its postscript representation is converted into an image operator with 256 levels of gray or colour. This conversion makes the image 20 times smaller. Usage from within gnuplot and from your command line shell, respectively:
```
	gnuplot> set out "|awk -f pm3dConvertToImage.awk >image.ps"

        ~/work$ awk -f pm3dConvertToImage.awk image.ps
	
```

gpsavediff: Script to strip default set values from a given gnuplot input file; usually used to shorten a file created by gnuplot's save command. Usage:
```
	gpsavediff [gnuplot_save_file]
    
```
If no file given, then take standard input. Result is printed on standard output. Examples:
```
	~/work$ gpsavediff sinc.gp >new_sinc.gp

	gnuplot> save "|gpsavediff >sinc.gp"
    
```
colorpts: The enclosed script colorpts.awk draws list of 3D points (3D coordinates) as colour rectangles in set pm3d map with colour according to the point z-coordinate and any specified lateral size. Try the enclosed colorpts-demo.gp. You may find this script useful, even though gnuplot supports something similar by splot 'a.dat' with points palette (using predefined point shapes).
label_contours.awk: The enclosed script label_contours.awk generates gnuplot script containing text labels to label contours found in a file generated by a gnuplot splot command with output to the table terminal. The output should be redirected to another file and then be loaded into gnuplot; this results in a contour plot.
Example of use (from gnuplot):
```
    set contour base; set cntrparam levels 15; unset surface
    set table "contour.dat"
    splot x*x+y*y
    unset table
    !awk -f label_contours.awk -v nth=10 textcolor=-1 inclt=1 contour.dat >tmp.gp
    reset; set key outside left; load "tmp.gp"
```

The Qplot package to plot quarterly time data
A perl script to create filled boxes with the postscript terminal, by Andreas Widmann. The script draws boxed keys, and fills (and outlines) boxes by post-processing gnuplot postscript output. This is new in comparison to the patches of Steve Cumming and Bernhard Reiter since it works for postscript output (Steve Cummings patch only works well only on non-vector oriented terminals) and you don't have to go through fig which implies some heavy restrictions.
Note: gnuplot 4.0 has native support for filled boxes.
dat2latex.pl: a script that converts columns of a data file into LaTeX table(s). (Note: script formerly called gp2tex.gpl.)

ultrix-sprintf.patch: Needed in order to compile mousing support under Ultrix or SunOS 4, or any other system with an oddball sprintf() that does not return the number of characters written.

Gnuplot and gtk scripts to save plot layout information along with a PNG plot so that it can be displayed later on in gtk with interactive mousing. Contributed by Allin Cottrell. gp-gtk-tgz (uses new features in 4.3)
Gnuplot script to plot and sing "99 Bottles of Beer on the Wall" ascii art version (set term dumb) and animated (screen, gif) version.

The cpt-city site is an archive of colour gradients for cartography, technical illustration and design. Palettes are loaded into gnuplot using the "set palette file" command.

Go back to gnuplot homepage.

Version: July 2009.