MathGL is a free library of fast C++ routines for the plotting of the data
varied in one or more dimensions. MathGL has more than 50 general types
of graphics for 1d, 2d and 3d data arrays. It can export graphics to bitmap
and vector (EPS, SVG etc) files. It has OpenGL interface and can be used from
console programs. It has functions for data handling and script MGL language
for simplification of data plotting. Also it has several types of transparency
and smoothed lightning, vector fonts and TeX-like symbol parsing, arbitrary
curvilinear coordinate system and many over useful things. Finally it is
platform independent and free (under GPL v.2.0 or later license).
Installation instructions are provided in the manual (don't worry, it
About LGPL and GPL licenses.
Generally, MathGL is GPL library. However, you can use LGPL license for MathGL
core and widget libraries if you don't use SWIG-based interfaces and disable GSL
and HDF features. This can be done by using 'enable-lgpl' option at build time.
However, I ask you to put the information of used MathGL version and link to
MathGL website into "About" section of yours program.
MathGL was written by Alexey Balakin. You can contact me at
firstname.lastname@example.org . The latest version of MathGL can be found at
the sourceforge.net page (http://mathgl.sourceforge.net).