Pyxplot Users' Guide: Configuring the appearance of axes

8.8.5 Configuring the appearance of axes

The set axis command also accepts the following keywords alongside the positional keywords listed above, which specify how the axis should appear:

arrow – Specifies that an arrowhead should be drawn on the right/top end of the axis. [Not default].
atzero – Specifies that rather than being placed along an edge of the plot, the axis should mark the lines where the perpendicular axes x1, y1 and/or z1 are zero. [Not default].
automirrored – Specifies that an automatic decision should be made between the behaviour of mirrored and nomirrored. If there are no axes on the opposite side of the graph, a mirror axis is produced. If there are already axes on the opposite side of the graph, no mirror axis is produced. [Default].
fullmirrored – Similar to mirrored. Specifies that this axis should have a corresponding twin placed on the opposite side of the graph with mirroring ticks and labelling. [Not default; see automirrored].
invisible – Specifies that the axis should not be drawn; data can still be plotted against it, but the axis is unseen. See Example 8.11.2 for a plot where all of the axes are invisible.
linked – Specifies that the axis should be linked to another axis; see Section 8.8.9.
mirrored – Specifies that this axis should have a corresponding twin placed on the opposite side of the graph with mirroring ticks but with no labels on the ticks. [Not default; see automirrored].
noarrow – Specifies that no arrowheads should be drawn on the ends of the axis. [Default].
nomirrored – Specifies that this axis should not have any corresponding twins. [Not default; see automirrored].
notatzero – Opposite of atzero; the axis should be placed along an edge of the plot. [Default].
notlinked – Specifies that the axis should no longer be linked to any other; see Section 8.8.9. [Default].
reversearrow – Specifies that an arrowhead should be drawn on the left/bottom end of the axis. [Not default].
twowayarrow – Specifies that arrowheads should be drawn on both ends of the axis. [Not default].
visible – Specifies that the axis should be displayed; opposite of invisible. [Default].

The following simple examples demonstrate the use of some of these configuration options:

set axis x atzero twoway
set axis y atzero twoway
plot [-2:8][-10:10]

$\includegraphics[width=8cm]{examples/eps/ex_axisatzero}$

set axis x atzero arrow
set axis y atzero twoway
plot [0:10][-10:10]

$\includegraphics[width=8cm]{examples/eps/ex_axisatzero2}$

set axis x notatzero arrow nomirror
set axis y notatzero arrow nomirror
plot [0:10][0:20]

$\includegraphics[width=8cm]{examples/eps/ex_axisatzero3}$