TILE

bar_definition

 A bar is defined by the following values:

  xlower  -- the x coordinate of the left edge of the bar, in graph units
  xupper  -- the x coordinate of the right edge of the bar, in graph units
  ymid    -- the y coordinate of the middle of the bar, in graph units
  nh      -- the hatch pattern with which to fill the bar
             nh = 0  means no filling
             nh < 0  means the outline of the bar is not drawn,
                     but hatch pattern nh\mid is drawn
  height  -- the height of the bar, in graph units
  colour  -- the colour of the bar outline and fill pattern

character_definition

 A character string is defined by the following values:

 xlower  -- the x coordinate of the lower left corner of the
            character string, in graph units
 just    -- the justification to use for positioning the text,
            L means left, C means centre, R means right
 ymid    -- the y coordinate of the middle of the text
 font    -- the name of the font to use for drawing the text
 height  -- the height of the text, in graph units
 colour  -- the colour of the string (1 - 8),
            see the COLOUR command for an explanation of the colour code
 `text'  -- the character string itself

sample_file

 !xlo  xup ymid nhatch height colour
 !
 0    4    1      5     .8      1
 5   10    1      6     .8      2
 0    3    2      8     .8      3
 4    6.5  2      9     .8      4
 7    9    2     10     .8      5
 0    2    3      6     .8      2
 3    5    3      8     .8      3
 6    8    3     10     .8      5
 8.5 10    3      5     .8      1
 !
 !xlo just ymid  font  height colour  string
 !
 -2    R    2   TSAN     .3      1  `Second label'
 -2    R    1   TSAN     .3      1  `First label'
 -2    R    3   TSAN     .3      1  `Third label'