plaxes - Draw a box with axes, etc. with arbitrary
origin
plaxes(x0, y0, xopt, xtick,
nxsub, yopt, ytick, nysub)
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 ascii 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)
This function is not used in any examples.
- x0 (PLFLT(3plplot),
input)
- World X coordinate of origin.
- y0 (PLFLT(3plplot),
input)
- World Y coordinate of origin.
- xopt
(PLCHAR_VECTOR(3plplot), input)
- An ascii character string specifying options for the x 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(3plplot), 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(3plplot), 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
(PLCHAR_VECTOR(3plplot), input)
- An ascii character string specifying options for the y axis. The string
can include any combination of the letters defined above for xopt,
and in addition may contain: v: Write numeric labels for the y axis
parallel to the base of the graph, rather than parallel to the axis.
- ytick
(PLFLT(3plplot), 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(3plplot), 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.
Many developers (who are credited at
http://plplot.org/credits.php) have contributed to PLplot over its long
history.
PLplot documentation at http://plplot.org/documentation.php.