NAME

       plaxes - Draw a box with axes, etc. with arbitrary origin

SYNOPSIS

       plaxes(x0, y0, xopt, xtick, nxsub, yopt, ytick, nysub)

DESCRIPTION

       Draws  a  box around the currently defined viewport with arbitrary world-coordinate origin
       specified by x0 and y0 and labels it with  world  coordinate  values  appropriate  to  the
       window.   Thus  plaxes(3plplot)  should  only  be  called after defining both viewport and
       window.  The character strings xopt and yopt specify  how  the  box  should  be  drawn  as
       described below.  If ticks and/or subticks are to be drawn for a particular axis, the tick
       intervals and number of subintervals may be specified explicitly, or they may be defaulted
       by setting the appropriate arguments to zero.

       Redacted  form:  General: plaxes(x0, y0, xopt, xtick, nxsub, yopt, ytick, nysub) Perl/PDL:
       plaxes(x0, y0, xtick, nxsub, ytick, nysub, xopt, yopt)

       This function is not used in any examples.

ARGUMENTS

       x0 (PLFLT, input)
              World X coordinate of origin.

       y0 (PLFLT, input)
              World Y coordinate of origin.

       xopt (const char *, input)
              Pointer to character string specifying options for horizontal axis.  The string can
              include  any  combination  of  the  following  letters (upper or lower case) in any
              order: a: Draws axis, X-axis is horizontal line (y=0), and Y-axis is vertical  line
              (x=0).   b:  Draws bottom (X) or left (Y) edge of frame.  c: Draws top (X) or right
              (Y) edge of frame.  d: Plot labels as date  /  time.   Values  are  assumed  to  be
              seconds  since  the epoch  (as used by gmtime).  f:  Always use fixed point numeric
              labels.  g: Draws a grid at the major tick interval.  h: Draws a grid at the  minor
              tick  interval.   i:  Inverts  tick  marks, so they are drawn outwards, rather than
              inwards.  l: Labels axis logarithmically.  This only affects the  labels,  not  the
              data,  and  so  it  is  necessary  to  compute the logarithms of data points before
              passing them to any of the drawing routines.  m: Writes  numeric  labels  at  major
              tick  intervals  in  the unconventional location (above box for X, right of box for
              Y).  n: Writes numeric labels at major tick intervals in the conventional  location
              (below box for X, left of box for Y).  o: Use custom labelling function to generate
              axis  label  text.   The  custom  labelling  function  can  be  defined  with   the
              plslabelfunc(3plplot) command.  s: Enables subticks between major ticks, only valid
              if t is also specified.  t: Draws major ticks.  u: Exactly like  "b"  except  don't
              draw  edge line.  w: Exactly like "c" except don't draw edge line.  x: Exactly like
              "t" (including the side effect of the numerical labels for the major ticks)  except
              exclude drawing the major and minor tick marks.

       xtick (PLFLT, input)
              World  coordinate interval between major ticks on the x axis. If it is set to zero,
              PLplot automatically generates a suitable tick interval.

       nxsub (PLINT, input)
              Number of subintervals between major x axis ticks for minor ticks.  If it is set to
              zero, PLplot automatically generates a suitable minor tick interval.

       yopt (const char *, input)
              Pointer  to  character string specifying options for vertical axis.  The string can
              include any combination of the letters defined above for xopt, and in addition  may
              contain:  v:  Write  numeric  labels  for vertical axis parallel to the base of the
              graph, rather than parallel to the axis.

       ytick (PLFLT, input)
              World coordinate interval between major ticks on the y axis. If it is set to  zero,
              PLplot automatically generates a suitable tick interval.

       nysub (PLINT, input)
              Number of subintervals between major y axis ticks for minor ticks.  If it is set to
              zero, PLplot automatically generates a suitable minor tick interval.

AUTHORS

       Many developers  (who  are  credited  at  http://plplot.sourceforge.net/credits.php)  have
       contributed to PLplot over its long history.

SEE ALSO

       PLplot documentation at http://plplot.sourceforge.net/documentation.php.

                                          February, 2016                          PLAXES(3plplot)