gnuplot documentation

132 gnuplot 4.3 70 SET-SHOW
The pattern option causes filling to be done with a fill pattern supplied by the terminal driver. The
kind and number of available fill patterns depend on the terminal driver. If multiple datasets using filled
boxes are plotted, the pattern cycles through all available pattern types, starting from pattern ,
much as the line type cycles for multiple line plots.
The empty option causes filled boxes not to be filled. This is the default. It is equivalent to the solid
option with a parameter of zero.
By default, border, the box is bounded by a solid line of the current linetype. border specifies
that a border is to be drawn using linetype . noborder specifies that no bounding lines are drawn.
70.59.3.1 Set style fill transparent Some terminals support the attribute transparent for filled
areas. In the case of transparent solid fill areas, the density parameter is interpreted as an alpha value;
that is, density 0 is fully transparent, density 1 is fully opaque. In the case of transparent pattern fill,
the background of the pattern is either fully transparent or fully opaque.
Terminal solid pattern pm3d
gif no yes no
jpeg yes no yes
pdf yes yes yes
png TrueColor index yes
post no yes no
svg yes no yes
wxt yes yes yes
x11 no yes no
Note that there may be additional limitations on the creation or viewing of graphs containing transparent
fill areas. For example, the png terminal can only use transparent fill if the "truecolor" option is set.
Some pdf viewers may not correctly display the fill areas even if they are correctly described in the pdf
file. Ghostscript/gv does not correctly display pattern-fill areas even though actual PostScript printers
generally have no problem.
70.59.4 Set style function
The set style function command changes the default plotting style for function plots.
Syntax:
set style function
show style function
See plotting styles (p. 40) for the choices. If no choice is given, the choices are listed. show style
function shows the current default function plotting style.
70.59.5 Set style increment
Syntax:
set style increment {default|userstyles}
show style increment
By default, successive plots within the same graph will use successive linetypes from the default set for
the current terminal type. However, choosing set style increment user allows you to step through
the user-defined line styles rather than through the default linetypes.
Example:
set style line 1 lw 2 lc rgb "gold"
set style line 2 lw 2 lc rgb "purple"
set style line 4 lw 1 lc rgb "sea-green"
set style increment user