gnuplot links

This is a completely unorganised list of gnuplot related sites and programs maintained elsewhere. Please write to gnuplot-beta mailing list if you know any other useful links.

Gnuplot front-ends

gnuplot mode gnuplot-mode.el for Emacs and XEmacs
UniGNUPlot: A graphical interface to gnuplot, based on tcl/tk
PlotDrop: A minimal frontend to gnuplot which supports dropping of data files on GNOME and KDE

Programming interfaces

Interfaces to gnuplot for programmers who are not satisfied with their own popen() solution.

C/C++
- C++ iostream interface by Dan Stahlke. "This interface allows gnuplot to be controlled from C++ and is designed to be the lowest hanging fruit. In other words, if you know how gnuplot works it should only take 30 seconds to learn this library." Also available using git: git clone git://gitorious.org/gnuplot-iostream/gnuplot-iostream.git
- gnuplot interfaces in ANSI C by Nicolas Devillard
Fortran
- ogpf is an object based modern fortran code (fortran 2003 / 2008) to invoke gnuplot for data visualization from inside fortran codes. It is very simple and has similar interface to Matlab plot, surf, contour, meshgrid, ... functions. It also support animation.
- Fortran95 interface
Java
- gnuplot classes
- jgnuplot: Java library for interfacing with the gnuplot.
- JavaPlot: A full Java-oriented plotting library based on gnuplot for the graphics part, implementing most gnuplot features in a java-friendly manner.
Julia
- Gaston
- gnuplot.jp (gcalderone)
Perl
- Gnuplot.pm
Python interfaces to gnuplot
- Gnuplot.py
- PyGnuplot

Programming interfaces – bidirectional interaction

Here are demo programs demonstrating how to read and interact with gnuplot's mouse position at a clicked point from various languages (aka bidirectional communication between your program and gnuplot):

gpReadMouseTest.c: Version in C.
gpReadMouseTest-m.zip: Version for Octave / Matlab.
Here is an implementation of ginput and waitforbuttonpress commands for Octave 2.1 series:
- version April 2004 for gnuplot 4.0, and
- version June 2006 for gnuplot 4.1 and higher.
- version March 2008 for gnuplot 4.2 and higher and Octave 3.0.
In Octave 3.1, the ginput function will be included by default.
GnuplotBiDir.py: Version for Python.
A bidirectional example using java contributed by Nicolas Pouvesle.

Software that uses gnuplot

Octave, a high-level language for numerical computations. Mostly compatible with Matlab.
Useful additions (scripts):
1. Reading gnuplot hotkeys: see the section on bi-directional communication above.
2. imagegp.m (version 2006-04-10): a replacement for the default image.m, imagesc.m, and imshow.m, which are fast and support true axes. Requires gnuplot development version 4.1 (uses the plot ... with image plotting style).
3. loadgpbin.m and_savegpbin.m: load and save gnuplot binary matrix files (those from help binary matrix and splot 'x.gpbin' binary).
Maxima, a program for symbolic computation. Here are some nice examples of gnuplot output.
statist is a small and portable statistics program, simple to use and can be run in scripts.
GNUPLOTXY is an interface from GAMS (Generalized Algebraic Modelling System) to gnuplot.
gretl (Gnu Regression, Econometrics and Time-series Library) is a cross-platform software package for econometric analysis.

Web interfaces to gnuplot

javascript version of gnuplot compiled by Emscripten and running inside your web browser. It's more like a plugin than a web service.