legend_string

           Writes legend text in plot window.

           cafe

           legend

           str      - The string to write.

           spacing  - The shift in y direction to next line in
                      character sizes. Default is 1.2, i.e. 1
                      character for next line and 0.2 character for
                      inter line space.
           charsize - the character size multiplier. Default is
                      !p.charsize (usually 1).

            tex     - Convert tex strings using TeXtoIDL(). Usefull
                      for mathematican symbols.
                      It is recomended to use this keyword
                      instead of calling textoidl() manually. The
                      latter causes problems when printing into
                      postscript files because the IDL codes for
                      plot fonts (!p.font = -1) and hardware fonts
                      (!p.font = 0) are different.

           Writes string given as parameter

           Changes plot

               > plot, data+model
               > legend, string[str=Special model]
               -> creates legend with the text "Special model"

           $Id: cafe_legend_string.pro,v 1.6 2004/02/06 08:09:23 goehler Exp $

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