graphviz interface

Interface to the graphing package graphviz

• graphstruct.C is an example of the graphviz interface classes usage.

Classes
class	TGraphEdge
	An edge object connecting two nodes which can be added in a TGraphStruct. More...
class	TGraphNode
	A graph node object which can be added in a TGraphStruct. More...
class	TGraphStruct
	The Graph Structure is an interface to the graphviz package. More...