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Resources for plotting and graphing
   DISLIN scientific data plotting software
DISLIN is intended to be a powerful and easy to use software package for scientists and programmers. There are only a few graphics routines with a short parameter list needed to display the desired graphical output. DISLIN is free for the operating systems Linux and FreeBSD and for the MS-DOS and Windows 95/98/NT compilers GCC, G77 and LCC. The DISLIN plotting extensions for Java, Python and Perl and the DISLIN interpreter DISGCL can be used freely on all operating systems.
paintlib is a portable C++ class library for image manipulation. Images can be loaded from PNG, TGA, TIFF, JPEG, BMP, PCX and PICT files and saved in TIFF and JPEG formats. Image manipulation can be done either through filters implemented in filter classes or by directly accessing the bitmap bits. Full C++ source is provided.
   VTK -- visualization toolkit [linux howto] [manual]
The Visualization ToolKit (VTK) is an open source, freely available software system for 3D computer graphics, image processing, and visualization. VTK includes a textbook published by Prentice-Hall ( The Visualization Toolkit, An Object-Oriented Approach To 3D Graphics, 2nd edition" ISBN 0-13-954694-4 ), a C++ class library, and several interpreted interface layers including Tcl/Tk, Java, and Python. VTK has been implemented on nearly every Unix-based platform and PC's (Windows NT and Windows95). The design and implementation of the library has been strongly influenced by object-oriented principles.

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