Grace

http://plasma-gate.weizmann.ac.il/Grace/

Grace is a WYSIWYG 2D plotting tool for the X Window System and M*tif. Grace runs on practically any version of Unix-like OS. As well, it has been successfully ported to VMS, OS/2, and Win9*/NT/2000/XP (some minor functionality may be missing, though).

Grace is a descendant of ACE/gr, also known as Xmgr.

• WYSIWYG design
• Convenient point-and-click graphical user interface
• Precise control of graph features
• True publication quality
• Graphs refresh almost instantly
• Exports high-resolution graphics to (E)PS, PDF, MIF, and SVG formats
• Supports cross-platform PNM, JPEG and PNG formats
• Device-independent Type1 font rastering, including anti-aliasing, ligatures and kerning
• Graphing Flexibility
• Unlimited number of curves on a graph
• Up to 256 customizable colors
• 9 dashed line styles
• 32 fill patterns
• 10 built-in marker symbols; plus, any character glyph from any font can be used as a marker
• Text annotations with subscripts, superscripts, mixed fonts, styles and colors and more complex typesetting
• Curve Fitting
• Linear and nonlinear least-squares
• Arbitrarily complex user-defined fitting functions, including dynamically loadable C/Fortran/… modules
• Fitting with constraints
• Region restrictions
• Fitting with arbitrary weight functions
• Analysis Capability
• FFT
• Integration and differentiation
• Histograms
• Splines, including Akima splines
• Interpolation and smoothing
• Convolution, correlation, and covariation
• Sorting
• Unlimited data size; up to six dimensions plus an optional array of strings
• Reads text data input files
• Programmability
• Built-in programming language
• Math functions manipulate entire array
• Variables, including arrays (1D)
• User-definable functions via loadable modules
• All aspects of plot outlook can be programmed
• Controllable by external programs
• Customization/Extensibility
• Dynamic module loading - write your own C/Fortran/…
• User-defined colors
• User-supplied fonts and encodings