

x11 {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 = options()$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 possi-
          bilities 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 ren-
     dering strategy that it can.  The choice can be overri-
     den 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 pseudo-
     color displays.  The first strategy provides on-demand
     color allocation which produces exact colors until the
     color resources of the display are exhausted.  The sec-
     ond 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 dis-
     plays is `"pseudo"'.

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

     `Devices'.

