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# daVinci_edge(?Name, ?Node1, ?Node2)

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

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

## 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