If the Escape value of a Plot is one (the default), then any escape sequences in text strings produce the effects described below when printed. Otherwise, they are printed literally.
See also the AST_ESCAPES function.
%% - Print a literal "%" character.
%
...
- Draw subsequent characters as super-scripts. The digits
"..." give the distance from the base-line of "normal"
text to the base-line of the super-script text, scaled
so that a value of "100" corresponds to the height of
"normal" text.
%![]()
- Draw subsequent characters with the normal base-line.
%v...
- Draw subsequent characters as sub-scripts. The digits
"..." give the distance from the base-line of "normal"
text to the base-line of the sub-script text, scaled
so that a value of "100" corresponds to the height of
"normal" text.
%v
- Draw subsequent characters with the normal base-line
(equivalent to %![]()
).
%
...
- Leave a gap before drawing subsequent characters.
The digits "..." give the size of the gap, scaled
so that a value of "100" corresponds to the height of
"normal" text.
%
...
- Move backwards before drawing subsequent characters.
The digits "..." give the size of the movement, scaled
so that a value of "100" corresponds to the height of
"normal" text.
%s...
- Change the Size attribute for subsequent characters. The
digits "..." give the new Size as a fraction of the
"normal" Size, scaled so that a value of "100" corresponds
to 1.0;
%s
- Reset the Size attribute to its "normal" value.
%w...
- Change the Width attribute for subsequent characters. The
digits "..." give the new width as a fraction of the
"normal" Width, scaled so that a value of "100" corresponds
to 1.0;
%w
- Reset the Size attribute to its "normal" value.
%f...
- Change the Font attribute for subsequent characters. The
digits "..." give the new Font value.
%f
- Reset the Font attribute to its "normal" value.
%c...
- Change the Colour attribute for subsequent characters. The
digits "..." give the new Colour value.
%c
- Reset the Colour attribute to its "normal" value.
%t...
- Change the Style attribute for subsequent characters. The
digits "..." give the new Style value.
%t
- Reset the Style attribute to its "normal" value.
%h
- Remember the current horizontal position (see "%g
")
%g
- Go to the horizontal position of the previous "%h
" (if any).
%- - Push the current graphics attribute values onto the top of
the stack (see "%
").
%
- Pop attributes values of the top the stack (see "%-"). If
the stack is empty, "normal" attribute values are restored.
AST A Library for Handling World Coordinate Systems in Astronomy