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       COMMAND

       vvvviiiieeeewwww ---- ddddiiiissssppppllllaaaayyyy ddddiiiiggggiiiittttiiiizzzzeeeerrrr ddddaaaattttaaaa iiiinnnn rrrreeeeaaaallll----ttttiiiimmmmeeee

       USAGE

       vvvviiiieeeewwww [----iiii] [_l_i_n_e-_w_i_d_t_h]

       DESCRIPTION

       It is sometimes useful to view the digitizer data directly.
       The vvvviiiieeeewwww command presents a graphical display which is
       similar to that which might be seen on a video monitor were
       it attached to the digitizer's video camera.

       The following option is available:

       ----iiii          Transform the raw data to image data, correcting
                   to true coordinates.  Available only on the
                   Iris.  Does not support any color features.

       Many of the attributes of the vvvviiiieeeewwww display are dependent on
       the type of digitizer, the host computer, and the parameters
       in your configuration files.

       The display presents radius along the horizontal axis and
       the digitizer's Y axis along the vertical.  The data values
       from the digitizer are represented by the line.

       The sssseeeennnnssssiiiittttiiiivvvviiiittttyyyy control affects the display.

       The usual interrupt key is used to terminate the vvvviiiieeeewwww
       display.  This is the SSSSttttoooopppp key on the HP and the CCCCoooonnnnttttrrrroooollll____CCCC
       key on other Unix hosts.  Note that most hosts require that
       the text window be selected by the mouse and not the vvvviiiieeeewwww
       window for the interrupt to work.

       The _I_r_i_s VVVViiiieeeewwww window is exited by selecting the EEEExxxxiiiitttt VVVViiiieeeewwww
       item from its menu.  Do not use the QQQQuuuuiiiitttt selection from the
       WWWWiiiinnnnddddoooowwww menu.

       If you have a color digitizer then two additional menu
       selections are provided.  The RRRRGGGGBBBB PPPPrrrrooooffffiiiilllleeee option causes the
       line to be drawn in the appropriate color.  Because neither
       the color or range data has been corrected for the
       digitizer's geometric or optical properties the registration
       of color to shape may displayed improperly.  The argument
       _l_i_n_e-_w_i_d_t_h may be used to make the line wider so that the
       color may be seen better.  The results can be quite odd with
       wide lines.












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       The menu option CCCCoooolllloooorrrr is for diagnostic purposes.  The color
       data alone will be displayed across part of the window in a
       shifting manner.  This may be used to adjust the aperture,
       R-G balance, room lighting or other color variable.























































