Adding New Actors to Vergil

[Bill Wood]

I tried to add a group for my application-specific actors to
Vergil by doing the following:
1)  Creating the file "myThingies.xml" (by mangling math.xml)
    to look like

    <?xml version="1.0" standalone="no"?>
    <!DOCTYPE plot PUBLIC "-//UC Berkeley//DTD MoML 1//EN"
        "http://ptolemy.eecs.berkeley.edu/xml/dtd/MoML_1.dtd";>
    <entity name="myActors" class="ptolemy.moml.EntityLibrary">
      <configure>
        <?moml
          <group>
      <doc>Application Specific Actors</doc>

      <entity name="Thing1" class="ptolemy.actor.lib.Thing1">
      </entity>

          </group>
        ?>
      </configure>
    </entity>

2)  Editing the file ".../ptolemy/vergil/lib/rootEntityLibrary.xml"
    to contain the input source entry
    "<input source=".../myThingies.xml"/>

When I fired up Vergil, nothing new appeared.  What have I missed?
Do I have to recompile part of the Ptolemy distribution to make
this work?

Thanks,

 -- Bill Wood

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