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### B.2.7 Sog

Functions for display of images in external viewer SOG (http://www.starlink.ac.uk/sog/).

`sog( label, loc )`
  Displays the file at a given location as an image in a graphical (SoG) viewer. `label` may be any string which identifies the window for display, so that multiple images may be displayed in different windows without getting in each others' way. `loc` should be a filename or URL, pointing to an image in a format that SOG understands (this includes FITS, compressed FITS, and NDFs).

  - Parameters:
    - `label` (String): identifies the window in which the image will be displayed
    - `loc` (String): image location
  - Return value
    - (String): short log message

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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