Decide the direction and the position of the optional slice plane by setting the coordinate
of the center point showing position of the optional slice plane andthe normal vector showi
ng along the slice plane.

Data Range                   Displays data range.
                               It help you when you set the coordinates.

Center of Slice Plane        Set the position of the slice plane by setting the coordinate
                               of the center point.
                               And It's not set the coordinate of the center point also set 
                               direction or position of the slice plane by using the other w
                               ay displays center coordinate of the slice plane at that time.

  X                          Set the X coordinate of the center point.


  Y                          Set the Y coordinate of the center point.


  Z                          Set the Z coordinate of the center point.

Normal Vector of Slice Plane Set the normal vector for fixing the direction of the slice plane.
                               When you press the Apply button, normal vector is automaicaly set
                               to a unit vector.And It's not set the normal vector also set dire
                               ction or position of the slice plane by using the other way displ
                               ays the normal vector of the slice plane at that time.

  X                          Set the X element of normal vector on the slice plane.
  
  Y                          Set the Y element of normal vector on the slice plane.
  
  Z                          Set the Z element of normal vector on the slice plane.

Apply                        When you press this Apply button, it displays the center 
                               point and the slice plane of normal vector.