Attribute "id"

Used by:cluster, node
Description:A unique identifier for a node or a cluster.

Node ids are referenced by the edge attributes from and to, cluster ids by ltail and lhead.

If for a node the attribute label is not defined, the value of the attribute is used.
Values:Strings [A-Z,a-z,0-9,.,_]+
Default Value:""
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Example 1/1:
Source code:
(graph ()
(node ((id "a")))
(cluster ((id "b") (label "b"))
(node ((id "c1") (label "c")))
(node ((id "c2") (label "c"))))
(edge ((from "a") (to "c1")))
(edge ((from "a") (to "c2") (lhead "b"))))
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 Copyright 2006-2010 by Martin Loetzsch (, all rights reserved. See the S-Dot licence for details.