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NAME

       plbox - Draw a box with axes, etc

SYNOPSIS

       plbox(xopt, xtick, nxsub, yopt, ytick, nysub)

DESCRIPTION

       Draws  a  box  around  the currently defined viewport, and labels it with world coordinate
       values appropriate to the  window.   Thus  plbox(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:  plbox(xopt,  xtick,  nxsub,  yopt,  ytick,  nysub)   Perl/PDL:
       plbox(xtick, nxsub, ytick, nysub, xopt, yopt)

       This function is used in examples 1,2,4,6,6-12,14-18,21,23-26,29.

ARGUMENTS

       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 labeling function to  generate
              axis   label   text.   The  custom  labeling  function  can  be  defined  with  the
              plslabelfuncplslabelfunc; 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.

       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

       Geoffrey  Furnish  and  Maurice  LeBrun  wrote  and  maintain  PLplot.   This man page was
       automatically generated from the DocBook source of the PLplot documentation, maintained by
       Alan W. Irwin and Rafael Laboissiere.

SEE ALSO

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

                                          February, 2012                           PLBOX(3plplot)