add-edge ( graph tail head -- graph' )
Graphviz » Graphviz data structures

Prev:	add-node ( graph id -- graph' )
Next:	add-nodes ( graph nodes -- graph' )

Vocabulary
graphviz

Inputs

graph	a graph or a subgraph
tail	an object
head	an object

Outputs

graph'

a graph or a subgraph

Word description
Adds an edge in graph from tail to head. That is,

X Y add-edge

is shorthand for

X Y <edge> add

Examples

USING: accessors graphviz io kernel sequences ; <graph> 1 2 add-edge 3 4 add-edge 1 2 add-edge ! duplicate 5 6 add-edge statements>> [ dup tail>> write "--" write head>> print ] each
1--2 3--4 1--2 5--6

USING: accessors graphviz io kernel math.combinatorics sequences ; <graph> { "a" 2 "c" } 2 [ first2 add-edge ] each-combination statements>> [ dup tail>> write "--" write head>> print ] each
a--2 a--c 2--c

See also
->, ~->

Definition

IN: graphviz

: add-edge ( graph tail head -- graph' ) <edge> add ; inline