GraceGTK
Draw curves, colored 2D maps with CAD capabilities
GraceGTK features:
Import numerical data to draw curves or colored 2D maps with level contour lines
Transform data (Fourier, wavelets), apply filters, fit curves
Interactive GUI with CAD capabilities to add drawings
Commands interpreter to automate work
More details in Files/doc/GraceGTK.pdf file
GraceGTK was forked from grace-5.1.22 in 2009.
The enhanced commands interpreter has an ascending compatibility with old Grace scripts.