X11(display = "", width = 7, height = 7, pointsize = 12,
gamma = 1, colortype = options()$X11colortype,
maxcubesize = 256)
display
|
the display on which the graphics window will appear.
The default is to use the value in the user's environment variable
DISPLAY.
|
width
| the width of the plotting window in inches. |
height
| the height of the plotting window in inches. |
pointsize
| the default pointsize to be used. |
gamma
| the gamma correction factor. This value is used to ensure that the colors displayed are linearly related to RGB values. A value of around 0.5 is appropriate for many PC displays. A value of 1.0 (no correction) is usually appropriate for high-end displays or Macintoshs. |
colortype
|
the kind of color model to be used. The
possibilities are "mono", "gray", "pseudo",
"pseudo.cube" and "true".
|
maxcubesize
| can be used to limited the size of color cube allocated for pseudocolor devices. |
X11 starts a graphics device driver for the X Window System
(version 11). This can only be done on machines that run X.
x11 is recognized as a synonym for X11.
By default, an X11 device will use the best color rendering
strategy that it can. The choice can be overriden with the
colortype parameter. A value of "mono" results in
black and white graphics, "gray" in grayscale and
"true" in truecolor graphics (if this is possible). The
values "pseudo" and "pseudo.cube" provide color
strategies for pseudocolor displays. The first strategy provides
on-demand color allocation which produces exact colors until
the color resources of the display are exhausted. The second
causes a standard color cube to be set up, and requested colors
are approximated by the closest value in the cube. The default
strategy for pseudocolor displays is "pseudo".
postscript, macintosh,
Devices.