Syntax:
set terminal emf {<color>} {solid | dashed} {linewidth <X>}
{size XX,YY}
{"<fontname>"} {<fontsize>} #old syntax
{font "<fontname>,<fontsize>"} #new syntax
4#4color5#5 is either color or monochrome; solid draws all curves with solid lines, overriding any dashed patterns; linewidth 4#4factor5#5 multiplies all line widths by this factor. 4#4font5#5 is the name of a font; and 4#4fontsize5#5 is the size of the font in points.
The nominal size of the output image default to 1024x768 in arbitrary units. You may specify a different nominal size using the size option.
The first two options can be in any order. Selecting default sets all options to their default values.
Examples:
set terminal emf 'Times Roman Italic' 12
set terminal emf color solid # no pesky dashes!