The command TV takes a 2-dimensional variable and displays it directly to
the display (you must have x-windows or a image display device). There is
no scaling performed on the data. If the data are not byte type, and there
are values over 255, then wrap-around will occur. It is probably best to
use TVSCL for these datasets. To display the first image in the variable
data, type:
IDL> tv, data(*,*,0)
To display the ``i''th dataset, type
IDL> tv, data(*,*,i)