OGDF - Open Graph Drawing Framework
OGDF is a portable C++ class library for graph drawing. OGDF offers sophisticated algorithms and data structures to use within your own applications or scientific projects.
Official homepage: http://www.ogdf.net
The library is available under the GNU General Public License. See LICENSE.txt for mor information on licensing.
Note for GitHub users
OGDF is actively developed using a non-public Subversion repository.
However, @sbeyer is more or less responsible for this repository. I try to take care of issues and pull requests.