Ctioga is deprecated

As of now (Mon Jan 31 2011), the use of Ctioga is deprecated, in favor of its full rewrite ctioga2. Development had stopped already two years ago. Please use ctioga2, which is now mature enough to serve as a full replacement of Ctioga, but provides much more features, such as XYZ color maps.

You may be interested in this page to help you transition to ctioga2.


Ctioga is a powerful command-line plotting system written in Ruby. It has been designed to make rapidly publication-quality graphes. It is based on the wonderful work by Bill Paxton, Tioga.

It is open source, which means you can modify it if you like, and it is completely free to use. See here for the reasons why you should use ctioga. You also definitely should have a look at its features, or the graphical feature list

On this site, you will find

We hope that you will find this program useful. If you need help about installation or use, you can use the forum. We would also be glad to hear about inaccuracies in these web pages there as well.

For those who want to live on the bleeding edge, please check the SVN repository !

If you found a bug, or you would like to request a new feature, please also use the facilities provided by rubyforge.

Please also visit the rubyforge project page of SciYAG.

Great thanks to the rubyforge team !

Enjoy !