gnuplot documentation

77 TERMINAL gnuplot 4.3 165
{dashlength | dl }
{linewidth | lw }
{rounded | butt}
{palfuncparam {,}}
{size {unit},{unit}}
{header | noheader}
{blacktext | colortext | colourtext}
{{font} "fontname{,fontsize}" {}}
The epslatex terminal prints a plot as terminal postscript eps but transfers the texts to LaTeX instead
of including in the PostScript code. Thus, many options are the same as in the postscript terminal.
From version 4.0 to 4.1, some changes have been invoked into the default appearance of the epslatex
terminal to reach better consistency with the postscript terminal: The plot size has been changed from
5 x 3 inches to 5 x 3.5 inches; the character width is now estimated to be 60% of the font size while the
old epslatex terminal used 50%; now, the larger number of postscript linetypes and symbols are used.
To reach an appearance that is nearly identical to the old one specify the option oldstyle. (In fact some
small differences remain: the symbol sizes are slightly different, the tics are half as large as in the old
terminal which can be changed using set tics scale, and the arrows have all features as in the postscript
terminal.)
If you see the error message
"Can’t find PostScript prologue file ... "
Please see and follow the instructions in postscript prologue (p. 189).
The option color enables color, while monochrome prefers black and white drawing elements. Further,
monochrome uses gray palette but it does not change color of objects specified with an explicit
colorspec. solid draws all plots with solid lines, overriding any dashed patterns. dashlength or dl
scales the length of the dashed-line segments by , which is a floating-point number greater than
zero. linewidth or lw scales all linewidths by .
By default the generated PostScript code uses language features that were introduced in PostScript Level
2, notably filters and pattern-fill of irregular objects such as filledcurves. PostScript Level 2 features are
conditionally protected so that PostScript Level 1 interpreters do not issue errors but, rather, display
a message or a PostScript Level 1 approximation. The level1 option substitutes PostScript Level 1
approximations of these features and uses no PostScript Level 2 code. This may be required by some
old printers and old versions of Adobe Illustrator. The flag level1 can be toggled later by editing a
single line in the PostScript output file to force PostScript Level 1 interpretation. In the case of files
containing level 2 code, the above features will not appear or will be replaced by a note when this flag is
set or when the interpreting program does not indicate that it understands level 2 PostScript or higher.
rounded sets line caps and line joins to be rounded; butt is the default, butt caps and mitered joins;
palfuncparam controls how set palette functions are encoded as gradients in the output. Analytic
color component functions (set via set palette functions) are encoded as linear interpolated gradients
in the postscript output: The color component functions are sampled at points and all points
are removed from this gradient which can be removed without changing the resulting colors by more than
. For almost every useful palette you may savely leave the defaults of =2000
and =0.003 untouched.
The default size for postscript output is 10 inches x 7 inches. The default for eps output is 5 x 3.5 inches.
The size option changes this to whatever the user requests. By default the X and Y sizes are taken to
be in inches, but other units are possibly (currently only cm). The BoundingBox of the plot is correctly
adjusted to contain the resized image. Screen coordinates always run from 0.0 to 1.0 along the full
length of the plot edges as specified by the size option. NB: this is a change from the previously
recommended method of using the set size command prior to setting the terminal type.
The old method left the BoundingBox unchanged and screen coordinates did not correspond to the
actual limits of the plot.
blacktext forces all text to be written in black even in color mode;
The epslatex driver offers a special way of controlling text positioning: (a) If any text string begins
with ’{’, you also need to include a ’}’ at the end of the text, and the whole text will be centered both