What is Gifa ?

Gifa Version 4 is a computer program designed for the processing, the visualization and the analysis of 1D, 2D, and 3D NMR data-set.

Gifa as an NMR processing program includes all the standard (and not so standard) processing and display methods. It includes many powerful signal processing methods such as Maximum Entropy, Linear Prediction, automatic Phasing, line fiting, base line correction...etc. Sophisticated graphic interaction is possible (1D, 2D and 3D on screen, superposition of 1D and 2D spectra, fully interactive AND programmable GUI,...).

Several specialized modules are also available within the software:

• A Protein assignment module
• A DOSY Processing module (based on a MaxEnt Inverse Laplace Transform)
• A Maximum Entropy Processing module
• A Linear Prediction Module

Gifa includes a comprehensive macro language which permits to build large projects, with controls on the display and the user interface.
Actually, the complete Graphic User Interface of Gifa is built with the macro language.

A complete Interactive manual is available

The initial version of Gifa was long ago written in the Gif-sur Yvette NMR Lab. France. It is now developed by the NMR group at the Centre de Biochimie Structurale Laboratory. in Montpellier France, under the responsability of M-A.Delsuc. Gifa runs on differents UNIX computer systems (PC/Linux, SGI/IRIX, SUN, MacDarwin...), with or without graphic display, in interactive or batch mode.

How can I get Gifa ?

The Complete Gifa distribution is on our ftp server, you may download it and use it for trial.
However, Gifa requires a license agreement. When running in unlicensed mode, all the features of the program are available, but one or two annoying messages will bother you (in the menu bar, on plot outputs, etc...).

The license is free for academic sites and non commercial use. Check the README file on the ftp server.

Industrials or commercial users should contact the NMRtec company for a license.

What is the current version of Gifa ? - New -

• The academic version, running exclusively under different version of Unix, and free for academic use. This version is numbered version 4, and is accessible from here.

  Current Version of Gifa is 4.4 - Dated november 2001 (check History file)

• During the 2000-2005 period, the NMRtec company developped and distributed a program based on Gifa V4, called Gifa v5. It was ported to Windows and MacOs, and improved the ease of use and the user interface.
  Last Version of Gifa is 5.2005 - Dated november 2004
  It is not developped anymore

  Both version share the same mathematical kernel, and the same macro langage. The Graphic user interface was much enhanced in version 5.

• -New- NPK
  NPK is the new program developed. The principle is very different as it is a python program. Control and programability is much better, and the program can be used in batch or interactive mode. The graphic however is not directly handled and requires and additional, such as Gifa 4, Gifa 5, or NMRNoteBook.

  The current version is 0.991 released in May 2007

You will also find here.

• A comprehensive manual.
• A Benchmark is even available, comparing machines since the very first version
• Our ftp server which contains the complete Gifa distribution


• The Impact Curve, showing the number laboratories having signed the license agreement since its first release.