CharGer is a conceptual graph editor intended to support research projects
and education. Its current version is primarily an editor to create visual
display of graphs. It is deliberately and explicitly a research tool
meant for conceptual graph researchers to explore implementation issues
in conceptual graph interfaces.
Using the software will require some familiarity with conceptual graphs,
including knowing about concepts and relations, type hierarchies and
type/referent pairs. Knowing about actors will also be very helpful.
For information about conceptual graphs, see the Web page:
© Copyright reserved 1998-2014 by Harry S. Delugach
CharGer's layout information is temporarily unavailable when using CGIF files. This problem is being worked on and will be fixed in the near future. If layout information is important to you, then use the CharGer format (*.cgx) for the graphs and simply save them as CGIF when you need to.
The following features are not currently supported; plans are to implement them in the future.
The University of Alabama in Huntsville has several sports teams nicknamed the "Chargers". A catchy name at that. Since the "CG" initials appear in it, it seemed a natural choice. And I like the image of forging ahead, attacking research problems and leading the way. So there it is.
The minimum requirements for CharGer are:
CharGer has been tested on Windows, LINUX and Mac OS X platforms.
Using CharGer requires availability of a Java package, at the version shown above. If you have previous versions of CharGer installed, your previous graph files are fully compatible with the new version, but you will have to copy your graphs into the folders expected by CharGer. Do the following:
Charger4.jarfile from the CharGer project at sourceforge.net
To run CharGer, you must have Java already installed on your machine. There are three options for running CharGer (four if you're using Mac OS X):
Double-click the CharGer.jar file: To quickly tell whether
or not Java is already installed, just double-click on the
file and see if it runs. If it does, then you can probably skip the next
paragraph. But make sure you're running the version shown above
(use "java -version" to
find out what version you have).
On a Windows OS, this is called
java.exe. You should be using Java's
JDK at the version shown above. It is possible that earlier versions will
work in some cases, but since the
JDK is freely available, it
is probably a good idea to get it first and install it before running
CharGer. Follow its instructions for installing Java,
From the command prompt on Windows or a shell prompt under LINUX, make the "top level" directory your current directory, and type the following:
java -jar CharGer4.jar
CharGer's main class is called
charger.CGMain. If the above command doesn't work, on most systems, the following command should also work:
java -cp CharGer.jar charger.CGMain
CharGer has been tested extensively on a Mac, and to some extent under Windows 7/8 and Linux (Ubuntu). Feedback to the author will be most appreciated.
A manual is available in PDF ; you can download it from the sourceforge folder.
The javadoc documentation is available if you're interested.
Source Code: CharGer is an open source project in sourceforge. See its Project Page for more information.
CharGer is a copyrighted work. All CharGer software files, its associated graphical files available within this software are protected under the Lesser GNU Public License (LGPL). If you are not familiar with the terms of this license, see http://www.opensource.org/licenses/lgpl-license.php (or many other places).
The author of the work is Harry S. Delugach (hereinafter "Author").
Information provided in this document, the manual, and the CharGer software
is provided "AS IS" without warranty of any kind, either express or implied,
including but not limited to the implied warranties of merchantability,
fitness, for a particular purpose and freedom from infringement. The
Author disclaims all warranties with regard to this software, including
all implied warranties of merchantability and fitness, in no event shall
the author, the University of Alabama in Huntsville or any of its sponsors be liable for any special, indirect
or consequential damages or any damages whatsoever resulting from loss
of use, data or profits, whether in an action of contract, negligence
or other tortuous action, arising out of or in connection with the use
or performance of this software. Reference in CharGer to any specific
commercial products, process, service, manufacturer, or company does
not constitute its endorsement or recommendation by anyone.
Maintained by Harry S. Delugach This page last modified on
September 12, 2014
This page last modified on September 12, 2014