Antoon Goderis, Christopher Brooks, Ilkay Altintas, Edward A. Lee, Carole Goble, "Composing Different Models of Computation in Kepler and PtolemyII," 2nd International Workshop on Workflow Systems in e-Science (WSES 07) in conjunction with International Conference on Computational Science 2007, May, 2007.The paper uses an example with DDF and FSM directors inside the SDF director. The example is available in several formats:
$PTII/bin/vergil http://ptolemy.eecs.berkeley.edu/ptolemyII/ptIIlatest/ptII/ptolemy/domains/ddf/demo/IfThenElse/IfThenElseFSM.xmlor
$PTII/bin/vergil $PTII/ptolemy/domains/ddf/demo/IfThenElse/IfThenElse.xmlor start vergil and do File -> Open URL and enter http://ptolemy.eecs.berkeley.edu/ptolemyII/ptIIlatest/ptII/ptolemy/domains/ddf/demo/IfThenElse/IfThenElseFSM.xml
$PTII/bin/vergil http://ptolemy.eecs.berkeley.edu/ptolemyII/ptIIlatest/ptII/doc/domainCompatibility.htmNote that some of the demonstrations listed might not be in your version of Ptolemy. To get a development version of Ptolemy, see http://chess.eecs.berkeley.edu/ptexternal.