\HeaderA{quartz}{MacOS X Quartz device}{quartz}
\keyword{device}{quartz}
\begin{Description}\relax
\code{quartz} starts a graphics device driver for the MacOS X System.
This can only be done on machines that run MacOS X.
\end{Description}
\begin{Usage}
\begin{verbatim}
quartz(display = "", width = 5, height = 5, pointsize = 12,
       family = "Helvetica", antialias = TRUE, autorefresh = TRUE)
\end{verbatim}
\end{Usage}
\begin{Arguments}
\begin{ldescription}
\item[\code{display}] the display on which the graphics window will appear.
The default is to use the value in the user's environment variable
\env{DISPLAY}.
\item[\code{width}] the width of the plotting window in inches.
\item[\code{height}] the height of the plotting window in inches.
\item[\code{pointsize}] the default pointsize to be used.
\item[\code{family}] this is the family name of the Postscript font
that will be used by the device.
\item[\code{antialias}] whether to use antialiasing. It is never the case to set
it \code{FALSE}
\item[\code{autorefresh}] logical specifying if realtime refreshing should be
done.  If \code{FALSE}, the system is charged to refresh the context
of the device window.
\end{ldescription}
\end{Arguments}
\begin{Details}\relax
Quartz is the graphic engine based on the PDF format.  It is used
by the graphic interface of MacOS X to render high quality graphics.
As PDF it is device independent and can be rescaled without loss of
definition.

If a device-independent R graphics font family is specified
(e.g., via \code{par(family=)} in the graphics package),
the Quartz device makes use of the Quartz font database
(see \code{quartzFonts}) to
convert the R graphics font family
to a Quartz-specific font family description.  

Calling \code{quartz()} sets \code{\LinkA{.Device}{.Device}} to \code{"quartz"}.

Line widths as controlled by \code{par(lwd=)} are in multiples of the
1/72 inch, and multiples < 1 are silently converted to 1.
\end{Details}
\begin{SeeAlso}\relax
\code{\LinkA{quartzFonts}{quartzFonts}},
\code{\LinkA{Devices}{Devices}}.
\end{SeeAlso}

