gnuplot documentation

77 TERMINAL gnuplot 4.3 183
77.51 Pm
The pm terminal driver provides an OS/2 Presentation Manager window in which the graph is plotted.
The window is opened when the first graph is plotted. This window has its own online help as well as
facilities for printing, copying to the clipboard and some line type and color adjustments. The multiplot
option is supported.
Syntax:
set terminal pm {server {n}} {persist} {widelines} {enhanced} {"title"}
If persist is specified, each graph appears in its own window and all windows remain open after gnuplot
exits. If server is specified, all graphs appear in the same window, which remains open when gnuplot
exits. This option takes an optional numerical argument which specifies an instance of the server process.
Thus multiple server windows can be in use at the same time.
If widelines is specified, all plots will be drawn with wide lines. If enhanced is specified, sub- and
superscripts and multiple fonts are enabled using the same syntax as the enhanced postscript option
(see set terminal postscript enhanced (p. 186) for details). Font names for the basic PostScript
fonts may be abbreviated to single letters.
If title is specified, it will be used as the title of the plot window. It will also be used as the name of
the server instance, and will override the optional numerical argument.
Linewidths may be changed with set linestyle.
77.52 Png
Syntax:
set terminal png
{{no}transparent} {{no}interlace}
{{no}truecolor} {rounded|butt}
{linewidth } {dashlength }
{tiny | small | medium | large | giant}
{font {}}
{size ,} {{no}crop}
{{no}enhanced}
{ ...}
PNG images are created using libgd, with optional support for TrueType and Adobe Type 1 fonts via
libfreetype. Version 1.8 or greater of libgd is required.
transparent instructs the driver to generate transparent PNGs. The first color will be the transparent
one. Default is notransparent.
interlace instructs the driver to generate interlaced PNGs. Default is nointerlace.
By default a 256-color png image is produced. The truecolor option instead creates a TrueColor output
image with 24 bits of color information per pixel. The use of transparent fill areas requires use of the
truecolor option. A transparent background is possible in either indexed or TrueColor images.
butt instructs the driver to use a line drawing method that does not overshoot the desired end point of
a line. This setting is only applicable for line widths greater than 1. This setting is most useful when
drawing horizontal or vertical lines. Default is rounded. Version 2.0 or greater of libgd is required.
PNG plots may be conveniently viewed by piping the output to the ’display’ program from the ImageMagick
package as follows:
set term png
set output ’| display png:-’
View the output from successive plot commands interactively by hitting in the display window.
To save a particular one to disk, left click in the display window and choose save.
Five basic fonts are supported directly by the gd library. These are tiny (5x8 pixels), small (6x12
pixels), medium, (7x13 Bold), large (8x16) or giant (9x15 pixels). These fonts cannot be scaled or
rotated (pure horizontal or vertical text only).