List of Graphical Devices

Description

The following graphics devices are currently available:

• postscript Writes PostScript graphics commands to a file
• pdf Write PDF graphics commands to a file
• pictex Writes LaTeX/PicTeX graphics commands to a file
• xfig Device for XFIG graphics file format
• bitmap bitmap pseudo-device via GhostScript (if available).

The following devices will be available if R was compiled to use them and started with the appropriate --gui argument:

• X11 The graphics driver for the X11 Window system
• png PNG bitmap device
• jpeg JPEG bitmap device
• GTK, GNOME Graphics drivers for the GNOME GUI.

None of these are available under R CMD BATCH.

Usage

X11(...)
postscript(...)
pdf(...)
pictex(...)
png(...)
jpeg(...)
GTK(...)
GNOME(...)
xfig(...)
bitmap(...)

dev.interactive()

Details

If no device is open, using a high-level graphics function will cause a device to be opened. Which device is given by options("device") which is initially set as the most appropriate for each platform: a screen device in interactive use and postscript otherwise.

Value

dev.interactive() returns a logical, TRUE iff an interactive (screen) device is in use.

See Also

The individual help files for further information on any of the devices listed here;

dev.cur, dev.print, graphics.off, image, dev2bitmap.

capabilities to see if X11, jpeg and png are available.

Examples

## Not run: 
## open the default screen device on this platform if no device is
## open
if(dev.cur() == 1) get(getOption("device"))()
## End(Not run)