1PLAXES(3plplot)                   PLplot API                   PLAXES(3plplot)
2
3
4

NAME

6       plaxes - Draw a box with axes, etc. with arbitrary origin
7

SYNOPSIS

9       plaxes(x0, y0, xopt, xtick, nxsub, yopt, ytick, nysub)
10

DESCRIPTION

12       Draws a box around the currently defined viewport with arbitrary world-
13       coordinate origin specified by x0 and y0 and labels it with world coor‐
14       dinate  values  appropriate to the window.  Thus plaxes(3plplot) should
15       only be called after defining both  viewport  and  window.   The  ascii
16       character  strings xopt and yopt specify how the box should be drawn as
17       described below.  If ticks and/or subticks are to be drawn for  a  par‐
18       ticular  axis,  the  tick  intervals  and number of subintervals may be
19       specified explicitly, or they may be defaulted by setting the appropri‐
20       ate arguments to zero.
21
22       Redacted form: General: plaxes(x0, y0, xopt, xtick, nxsub, yopt, ytick,
23       nysub)
24
25
26       This function is not used in any examples.
27

ARGUMENTS

29       x0 (PLFLT(3plplot), input)
30              World X coordinate of origin.
31
32       y0 (PLFLT(3plplot), input)
33              World Y coordinate of origin.
34
35       xopt (PLCHAR_VECTOR(3plplot), input)
36              An ascii character string specifying options  for  the  x  axis.
37              The  string can include any combination of the following letters
38              (upper or lower case) in any order: a:  Draws  axis,  X-axis  is
39              horizontal  line  (y=0),  and Y-axis is vertical line (x=0).  b:
40              Draws bottom (X) or left (Y) edge of frame.  c: Draws top (X) or
41              right  (Y) edge of frame.  d: Plot labels as date / time. Values
42              are assumed to be seconds since the epoch (as used  by  gmtime).
43              f:   Always  use fixed point numeric labels.  g: Draws a grid at
44              the major tick interval.  h: Draws a grid at the minor tick  in‐
45              terval.   i:  Inverts  tick  marks,  so they are drawn outwards,
46              rather than inwards.  l: Labels axis logarithmically.  This only
47              affects the labels, not the data, and so it is necessary to com‐
48              pute the logarithms of data points before passing them to any of
49              the  drawing  routines.   m: Writes numeric labels at major tick
50              intervals in the unconventional location (above box for X, right
51              of box for Y).  n: Writes numeric labels at major tick intervals
52              in the conventional location (below box for X, left of  box  for
53              Y).   o:  Use  custom  labelling function to generate axis label
54              text.  The custom labelling function can  be  defined  with  the
55              plslabelfunc(3plplot)  command.  s: Enables subticks between ma‐
56              jor ticks, only valid if t is also specified.   t:  Draws  major
57              ticks.  u: Exactly like "b" except don't draw edge line.  w: Ex‐
58              actly like "c" except don't draw edge line.  x: Exactly like "t"
59              (including the side effect of the numerical labels for the major
60              ticks) except exclude drawing the major and minor tick marks.
61
62
63       xtick (PLFLT(3plplot), input)
64              World coordinate interval between major ticks on the x axis.  If
65              it  is  set  to  zero, PLplot automatically generates a suitable
66              tick interval.
67
68       nxsub (PLINT(3plplot), input)
69              Number of subintervals between major  x  axis  ticks  for  minor
70              ticks.   If  it is set to zero, PLplot automatically generates a
71              suitable minor tick interval.
72
73       yopt (PLCHAR_VECTOR(3plplot), input)
74              An ascii character string specifying options  for  the  y  axis.
75              The  string  can  include any combination of the letters defined
76              above for xopt, and in addition may contain:  v:  Write  numeric
77              labels  for the y axis parallel to the base of the graph, rather
78              than parallel to the axis.
79
80
81       ytick (PLFLT(3plplot), input)
82              World coordinate interval between major ticks on the y axis.  If
83              it  is  set  to  zero, PLplot automatically generates a suitable
84              tick interval.
85
86       nysub (PLINT(3plplot), input)
87              Number of subintervals between major  y  axis  ticks  for  minor
88              ticks.   If  it is set to zero, PLplot automatically generates a
89              suitable minor tick interval.
90
91

AUTHORS

93       Many developers (who  are  credited  at  http://plplot.org/credits.php)
94       have contributed to PLplot over its long history.
95

SEE ALSO

97       PLplot documentation at http://plplot.org/documentation.php.
98
99
100
101                                  July, 2022                   PLAXES(3plplot)
Impressum