1PLAXES(3plplot) PLplot API PLAXES(3plplot)
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6 plaxes - Draw a box with axes, etc. with arbitrary origin
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9 plaxes(x0, y0, xopt, xtick, nxsub, yopt, ytick, nysub)
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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 character
16 strings xopt and yopt specify how the box should be drawn as described
17 below. If ticks and/or subticks are to be drawn for a particular axis,
18 the tick intervals and number of subintervals may be specified explic‐
19 itly, or they may be defaulted by setting the appropriate arguments to
20 zero.
21 Redacted form: General: plaxes(x0, y0, xopt, xtick, nxsub, yopt,
23 ytick, nysub) Perl/PDL: plaxes(x0, y0, xtick, nxsub, ytick, nysub,
24 xopt, yopt)
25 This function is not used in any examples.
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30 x0 (PLFLT, input)
31 World X coordinate of origin.
32 y0 (PLFLT, input)
34 World Y coordinate of origin.
35 xopt (const char *, input)
37 Pointer to character string specifying options for horizontal
38 axis. The string can include any combination of the following
39 letters (upper or lower case) in any order: a: Draws axis, X-
40 axis is horizontal line (y=0), and Y-axis is vertical line
41 (x=0). b: Draws bottom (X) or left (Y) edge of frame. c: Draws
42 top (X) or right (Y) edge of frame. f: Always use fixed point
43 numeric labels. g: Draws a grid at the major tick interval. h:
44 Draws a grid at the minor tick interval. i: Inverts tick marks,
45 so they are drawn outwards, rather than inwards. l: Labels axis
46 logarithmically. This only affects the labels, not the data,
47 and so it is necessary to compute the logarithms of data points
48 before passing them to any of the drawing routines. m: Writes
49 numeric labels at major tick intervals in the unconventional
50 location (above box for X, right of box for Y). n: Writes
51 numeric labels at major tick intervals in the conventional loca‐
52 tion (below box for X, left of box for Y). s: Enables subticks
53 between major ticks, only valid if t is also specified. t:
54 Draws major ticks.
55 xtick (PLFLT, input)
58 World coordinate interval between major ticks on the x axis. If
59 it is set to zero, PLplot automatically generates a suitable
60 tick interval.
61 nxsub (PLINT, input)
63 Number of subintervals between major x axis ticks for minor
64 ticks. If it is set to zero, PLplot automatically generates a
65 suitable minor tick interval.
66 yopt (const char *, input)
68 Pointer to character string specifying options for vertical
69 axis. The string can include any combination of the letters
70 defined above for xopt, and in addition may contain: v: Write
71 numeric labels for vertical axis parallel to the base of the
72 graph, rather than parallel to the axis.
73 ytick (PLFLT, input)
76 World coordinate interval between major ticks on the y axis. If
77 it is set to zero, PLplot automatically generates a suitable
78 tick interval.
79 nysub (PLINT, input)
81 Number of subintervals between major y axis ticks for minor
82 ticks. If it is set to zero, PLplot automatically generates a
83 suitable minor tick interval.
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87 Geoffrey Furnish and Maurice LeBrun wrote and maintain PLplot. This
88 man page was automatically generated from the DocBook source of the
89 PLplot documentation, maintained by Alan W. Irwin and Rafael
90 Laboissiere.
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93 PLplot documentation at http://plplot.sourceforge.net/resources.
94 March, 2007 PLAXES(3plplot)