| postscriptFonts {grDevices} | R Documentation |
These functions handle the translation of a device-independent R graphics
font family name to a PostScript font description, used by both the
postscript and pdf graphics devices.
postscriptFont(family, metrics, encoding = "default") postscriptFonts(...)
family |
a character string giving the name of an Adobe Type 1 font family. |
metrics |
a vector of four or five strings giving paths to the afm (font metric) files for the Type 1 font. |
encoding |
the name of an encoding file. Defaults to
"default", which maps to
"ISOLatin1.enc"
Otherwise, a file name in the ‘afm’ directory of the
grDevices package, which is used if the path does not contain
a path separator. An extension ".enc" can be omitted. |
... |
either character strings naming mappings to display, or new (named) mappings to define. |
A PostScript device is created with a default font (see the
documentation for postscript), but it is also possible
to specify a font family when drawing to the device (for example, see
the documentation for gpar in the grid package).
The font mechanism is shared with the pdf device.
The font family sent to the device is a simple string name, which must be mapped to something more specific to PostScript fonts. A list of mappings is maintained and can be modified by the user.
The postscriptFonts function can be used to list existing
translations and to define new mappings. The postscriptFont
function can be used to create a new mapping.
The argument family specifies the font family to be used.
Default mappings are provided for four device-independent family
names: "sans" for a sans-serif font, "serif" for a serif
font, "mono" for a monospaced font, and "symbol" for a
symbol font.
Mappings for a number of standard Adobe fonts (and URW equivalents)
are also provided: "AvantGarde",
"Bookman", "Courier", "Helvetica",
"Helvetica-Narrow", "NewCenturySchoolbook",
"Palatino" and "Times";
"URWGothic", "URWBookman", "NimbusMon",
"NimbusSan" (synonym "URWHelvetica"),
"NimbusSanCond", "CenturySch", "URWPalladio" and
"NimbusRom" (synonym "URWTimes").
There is also a mapping for "ComputerModern".
The specification of font metrics and encodings is described in the help
for the postscript function.
The fonts are not embedded in the resulting PostScript file, so software including the PostScript plot file should either embed the font outlines (usually from ‘.pfb’ or ‘.pfa’ files) or use DSC comments to instruct the print spooler to do so.
postscriptFont returns a PostScript font description.
postscriptFonts returns one or more font mappings.
Support for Computer Modern fonts is based on a contribution by Brian D'Urso durso@hussle.harvard.edu.
postscriptFonts()
CMitalic <- postscriptFont("ComputerModern",
c("CM_regular_10.afm", "CM_boldx_10.afm",
"cmti10.afm", "cmbxti10.afm",
"CM_symbol_10.afm"))
postscriptFonts(CMitalic=CMitalic)