The GOBLIN project consists of a C++ class library for a large series of graph optimization problems, GOSH, an extension of the Tcl/Tk scripting language to graph objects, and GOBLET, a graphical user interface to the library functions. GOBLET includes a graph editor and supports the standard graph layout methods. License: GNU Lesser General Public License (LGPL) Changes:
The Tcl API has been completely revised to conform with the method names in the C++ core library. Tcl commands now consistently support optional parameters. The HTML reference now covers all graph methods in the Tcl API. A constructor method for k-ary (cyclic) butterfly graphs has been added.