
daVinci_edge(?Name, ?Node1, ?Node2)

   This command adds an edge between two nodes in the graph.

Arguments
   Name                a Prolog term 
   Node1               a Prolog term 
   Node2               a Prolog term 

Type
   library(daVinci)

Description

This command adds an edge between two nodes in the graph.  The edge is
from Node1 to Node2.  Both nodes must exist in the final graph, but do
not need to be defined before the edge is entered.  Each edge must
have a unique name, typically a number or an atom.  Names for nodes
and edges do not have to be disjoint.   

Fail Conditions
   no

Resatisfiable
   no

Examples
    see daVinci_begin/0 

See Also
   daVinci_edge_attribute / 3
