x11                   package:base                   R Documentation

_X _W_i_n_d_o_w _S_y_s_t_e_m _G_r_a_p_h_i_c_s

_D_e_s_c_r_i_p_t_i_o_n:

     `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'.

_U_s_a_g_e:

     X11(display = "", width = 7, height = 7, pointsize = 12,
         gamma = 1, colortype = getOption("X11colortype"),
         maxcubesize = 256)

_A_r_g_u_m_e_n_t_s:

 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.

_D_e_t_a_i_l_s:

     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"'.

_S_e_e _A_l_s_o:

     `Devices'.

