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### 9.2 PLASTIC control

Note: the PLASTIC protocol has been deprecated in favour of SAMP since about 2009, and this functionality, though still present, is of mostly historical interest.

You can view and control operations relating to the PLASTIC hub from the Interop menu in the Control Window. It contains the following options:

Register with PLASTIC
  Attempts to locate a running PLASTIC hub and register with it.
Unregister with PLASTIC
  If currently registered with a PLASTIC hub, unregisters with it.
Show registered applications
  Pops up a small window which displays what applications are currently registered with any PLASTIC hub with which TOPCAT is registered. This will be kept up to date as applications register and unregister.
Start internal PLASTIC hub
  Starts a PLASTIC hub as part of the process within which TOPCAT is running. This will only work if a hub is not already running. The hub will terminate when TOPCAT exits.
Start external PLASTIC hub
  Starts a PLASTIC hub as a separate process. This will only work if a hub is not already running. The hub will continue running until it is explicitly terminated (e.g. using a `kill` command). Because this has some system-dependent features, it's not guaranteed to work, especially in non-Unix environments.
Help on interoperability
  Opens an appropriate help section in the help browser.
Broadcast Table
  Broadcasts the currently selected table to all listening applications using PLASTIC.
Send Table to ...
  Sends the currently selected table to a selected listening application using PLASTIC. Select the desired recipient application from the submenu.

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TOPCAT - Tool for OPerations on Catalogues And Tables
Starlink User Note253
TOPCAT web page: http://www.starlink.ac.uk/topcat/
Author email: m.b.taylor@bristol.ac.uk
Mailing list: topcat-user@bristol.ac.uk