Free plots software for linux

ploticus is a free, GPL, non-interactive software package for producing plots, charts, and graphics from data. ploticus was developed in a Unix/C environment and runs on various Unix, Linux, and win32 systems.

ploticus is good for automated or just-in-time graph generation, handles date and time data nicely, and has basic statistical capabilities. It allows significant user control over colors, styles, options and details.

From the command line you can run ploticus using the pl command. The pl command can also be invoked via CGI. C developers can use libploticus. Other interfaces exist for packages such as Python.

PLplot is a library of functions that are useful for making scientific plots.
PLplot can be used from within compiled languages such as C, C++, FORTRAN and Java, and interactively from interpreted languages such as Octave, Python, Perl and Tcl.
The PLplot library can be used to create standard x-y plots, semilog plots, log-log plots, contour plots, 3D surface plots, mesh plots, bar charts and pie charts. Multiple graphs (of the same or different sizes) may be placed on a single page with multiple lines in each graph.This program wants to offer interactive plotting using the Tcl programming language with plotting extensions.
A variety of output file devices such as Postscript, png, jpeg, LaTeX and others, as well as interactive devices such as xwin, tk, xterm and Tektronics devices are upported. New devices can be easily added by writing a small number of device dependent routines.There are almost 2000 characters in the extended character set. This includes four different fonts, the Greek alphabet and a host of mathematical, musical, and other symbols. Some devices supp
Many different output device drivers are available, including postscript, tektronix, HP laserjet, HP pen plotters, XFig, xterm, X-windows, and a portable metafile format, among others. The Tk driver under Unix/X provides a full user interface based on the plframe plotting widget (see below). The metafile renderer (plrender) supports all of the standard operations as well as seeking operations (backward, forward, or to any specified page) when interactively viewing metafile output.
Part of the PLplot package is a Tcl-based interpreter (pltcl).
Also part of PLplot is a Tk-based plotting widget, called a plframe. This widget is based on the Tk frame widget, and supports a variety of user options such as zoom, scrolls, save to a variety of devices, print, resize, page layout, orientation change, and palette manipulation. Direct plotting to the widget may be done by calls to the underlying library using either C or Fortran bindings, and a large number of operations can be interpreted directly (in Tcl) by the widget.
Enhancements:
- * Commit (with a few changes) C++ interface upgrade (at least 13 new PLplot library calls are now available) donated by Andrew Ross under the LGPL. The Plplot initialization has now been separated which allows plplot commands that are supposed to be done before init (such as command-line option processing) to work for the first time. This constitutes a backwards-incompatible change that will be signalled by a new
- libplplotcxx library major version number.
-
- Commit (with a few changes) extended set of C++ examples donated by Andrew Ross under the LGPL. These examples test the interface by attempting to mimic the results of the corresponding C examples.
-
- x01cc.c: Change this one old (but still interesting) C++ example to use the updated interface.
- examples/c++/Makefile.am: extend the install to the new examples, create symlink for lena.pgm (so x20 works), and use install-hook (no more .samename) for post-install changes.

PlotDrop is designed for quick simple visualisation of 2D data series. It is not intended to encompass anywhere near the full capabilities of GNUPlot.

PlotDrop software is made to be used in tandem with an external filesystem browser such as GNOMEs Nautilus or KDEs Konqueror.
Files containing data are added by dragging them from the browser to the file list.

Data files should be simple flat data of the kind preferred by GNUPlot, like

1.0 3.6
2.0 5.2
4.0 5.1

The series of a datafile to plot is set as an integer in the plot list. To plot more than one series simply add a file more than once and set a different series number on each entry.

Chart::Plot is a Perl module to plot two dimensional data in an image.

SYNOPSIS

use Chart::Plot;

my $img = Chart::Plot->new();
my $anotherImg = Chart::Plot->new ($image_width, $image_height);

$img->setData (@dataset) or die( $img->error() );
$img->setData (@xdataset, @ydataset);
$img->setData (@anotherdataset, red_dashedline_points);
$img->setData (@xanotherdataset, @yanotherdataset,
Blue SolidLine NoPoints);

my ($xmin, $ymin, $xmax, $ymax) = $img->getBounds();

$img->setGraphOptions (horGraphOffset => 75,
vertGraphOffset => 100,
title => My Graph Title,
horAxisLabel => my X label,
vertAxisLabel => my Y label );

print $img->draw();

I wrote Chart::Plot to create images of some simple graphs of two dimensional data. The other graphing interface modules to GD.pm I saw on CPAN either could not handle negative data, or could only chart evenly spaced horizontal data. (If you have evenly spaced or nonmetric horizontal data and you want a bar or pie chart, I have successfully used the GIFgraph and Chart::* modules, available on CPAN.)

Chart::Plot will plot multiple data sets in the same graph, each with some negative or positive values in the independent or dependent variables. Each dataset can be a scatter graph (data are represented by graph points only) or with lines connecting successive data points, or both. Colors and dashed lines are supported, as is scientific notation (1.7E10). Axes are scaled and positioned automatically and 5-10 ticks are drawn and labeled on each axis.

You must have already installed the GD.pm library by Lincoln Stein, available on CPAN or at http://stein.cshl.org/WWW/software/GD/ Versions of GD below 1.19 supported only gif image format. Versions between 1.20 and 1.26 support only png format. GD version 1.27 supports either png or jpg image formats. Chart::Plot will draw whichever format your version of GD will draw. (See below for a method to determine which format your version supports.)

QtiPlot is a data analysis and scientific plotting. Free clone of Origin.
QtiPlot uses Qt and the excellent libraries Qwt, GSL, QwtPlot3D and Ingo Bergs Fast Mathematical Parser.
Main features:
- Neat 2D and 3D data plotting
- ASCII-Import
- Spreadsheet and calculations in column-logic
- Great non-linear y=f(x) curve fitting and estimation of statistical errors of the fit-parameters
Whats New in 0.8.9 Stable Release:
- Improved the manual and changed the help system in order to use the powerful QAssistant (it must be placed in the same folder as the qtiplot executable).
- Upgraded to the unofficially released yet version muParser 1.28 which fixes crashes on 64bit machines when working with 3D surface plots.
- Upgraded to the last release of liborigin.
- Added a toolbar for matrix plots.
- Added several toolbuttons to the 3D plots toolbar.
- Improved the automatical layout of 3D plots and fixed a bug in changing the Z scale limits.
- Added the possibility to set the values of a matrix using the x and y parameters as in Origin.
Whats New in 0.9 RC3 Development Release:
- Improved handling of decimal separators.
- Improved 3D plotting.
- Improved import of Origin 7.5 files.
- Lots of bug fixes and improvements.

IP-Atlas tries to plot your location or any other host on the internet using the NetGeo data. It finds the latitude and longitude coordinates of the host and plots it on an image for you.It finds the latitude and longitude coordinates of the host and plots it on an image for you. You can try the demo and/or download it (91k). IP-Atlas needs PHP and optionally the GD library.

Put these files somewhere on your webserver, and point your browser to plot.php
Note: You can symlink "ln -s plot.php index.php" if you need to. If you have any problems running it, send an email to ivan@xpenguin.com

RSS-Planet is a custom marker file generator for xplanet which uses RSS feeds from news websites to plot the current headlines on a world map.

By default, Yahoo! News and CNN.com are supported, but other feeds that point to articles with easily-discoverable place names (such as the Washington Post) should work as well.