| dev2bitmap {base} | R Documentation |
Copy the current graphics device to a file in a bitmap graphics format.
dev2bitmap(file, type = "png256", height = 6, width = 6, res = 72,
pointsize, ...)
file |
The putput file name, with an appropriate extension. |
type |
The type of bitmap. the default is "png256". |
height |
The plot height, in inches. |
width |
The plot width, in inches. |
res |
Resolution, in dots per inch. |
pointsize |
The pointsize to be used for text: defaults to something reasonable given the width and height |
... |
Other parameters passes to postscript. |
dev2bitmap works by copying the current device to a
postscript device, and post-processing the output file
using ghostscript. You will need a recent version of
ghostscript (5.10 and later have been tested): the full path to
the executable can be set by the environment variable "R_GSCMD".
The types available will depend on the version of ghostscript,
but are likely to include
"pcxmono", "pcxgray", "pcx16", "pcx256",
"pcx24b", "pcxcmyk", "pbm", "pbmraw",
"pgm", "pgmraw", "pgnm", "pgnmraw",
"pnm", "pnmraw", "ppm", "ppmraw",
"pkm", "pkmraw", "tiffcrle", "tiffg3",
"tiffg32d", "tiffg4", "tifflzw",
"tiffpack", "tiff12nc", "tiff24nc",
"psmono", "psgray", "psrgb", "bit",
"bitrgb", "bitcmyk", "pngmono", "pnggray",
"png16", "png256", "png16m", "jpeg",
"jpeggray", "pdfwrite".
None.
This is experimental and may be withdrawn in favour of an equivalent device in a later version.
B. D. Ripley