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SET AXIS

[GREG1\]SET AXIS EXPO|NOEXPO [X|Y|Z]
[GREG1\]SET AXIS BRIEF|NOBRIEF [XDECIMAL|YDECIMAL|XSEXAGESIMAL|YSEX-
AGESIMAL]
SET AXIS EXPO forces the use of exponential notation for tick la-
bels.
By default (NOEXPO mode), Greg labels the ticks with plain integers (if
abs(value)>=1) or decimal floats (if abs(value)<1) as long as the label
is 6 characters or less. For larger labels, Greg switches to the expo-
nential notation.
This default mode can lead to inhomogeneous labels, some as plain inte-
gers, others in exponential format. The mode EXPO forces the use the
latter format for all labels.
The labelling rule can be customized for X, Y, or Z (intensities i.e.
wedge labelling). With no argument, the command applies to those three.
The plain integer/decimal versus exponential formats apply to decimal
and logarithmic axes. Sexagesimal axes have their own labelling rules.
SET AXIS BRIEF|NOBRIEF [XDECIMAL|YDECIMAL|XSEXAGESIMAL|YSEXAGESIMAL]
The BRIEF keyword indicates to the commands G\AXIS and G\BOX to abbrevi-
ate the major tick labels, if possible. Abbreviating means dropping off
leading digits which are common to all tick labels of one axis, in order
to make the relevant information (the variable digits) easier to read.
This is particularly suited to axes showing a small range of values
around a large one. This can also help saving place depending on the ax-
is and its tick labels orientation. Note that the first tick label is
kept entire while the other are abbreviated, and sign is preserved. The
NOBRIEF keyword indicate not to attempt the abbreviation.
A complementary argument can indicate which kind of axes should be af-
fected. X and Y refer respectively to horizontal and vertical axes. The
suffix DECIMAL refers to standard linear numbering, while SEXAGESIMAL
refers to sexagesimal notations of any kind. Logarithmic axes are not
affected. By default the command modifies the behavior of both axes in
both supported modes.
Defaults are:
XDECIMAL NOBRIEF
YDECIMAL NOBRIEF
XSEXAGESIMAL BRIEF
YSEXAGESIMAL NOBRIEF
Here are several examples for axes with 3 major ticks:
* NOBRIEF mode:
123456 123457 123458
-123456.7 -123456.75 -123456.8
1000 2000 3000
-1 0 1
12h34m56s 12h34m57s 12h34m58s
12h34m00s 12h36m00s 12h38m00s
* Same in BRIEF mode:
123546 7 8
-123546.7 -.75 -.8
1000 2000 3000
-1 0 1
12h34m56s 57s 58s
12h34m00s 36m00s 38m00s

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2020-12-02