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#### A.10.1.8 Send Spectrum

Configuration for Send Spectrum action

The Send Spectrum action takes a URL or filename in the table that points to a spectrum resource, and sends it using SAMP to an external viewer for display. The supported spectrum data formats are dependent on the external application in question. It sends a message with the MType `spectrum.load.ssa-generic`, so at least one external SAMP client subscribed to such messages must be registered.

Suitable spectrum viewers for use with this action include SPLAT and VOSpec.

Configuration:

Spectrum Location
  Gives the URL or filename of the spectrum to display for each row. A column name may be selected from the drop-down list, or the expression language may be used to assemble a location string from other columns.
Spectrum Viewer
  Determines which external client(s) to send the spectrum URLs to. The default is "All Clients" which will send it to all eligible applications, but you can select just one. Clicking the selector also serves to indicate which clients capable of acting on this message type are currently registered. If there are none, the action will be disabled.

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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@jiscmail.ac.uk