System information
3.  To resize the selection box, drag  the handles located around the perimeter of the box. To type 
specific   dimensions for the selection box, expand the Position  heading on the left side of the 
window and type new values in the Width and Height  boxes.
Select the Lock Aspect  Ratio button   if you want the selection box to retain its aspect  ratio during 
resizing. When the button is not selected, the height and  width can be resized independently.
Select the Size About  Center button   if you want the selection box to retain its center  point when 
you resize the box by dragging its edges. When the button is  not selected, the opposite side of the 
selection box will remain anchored  when you drag the edges to resize it.
4.  To reposition the selection box,   click in the middle of the selection area and drag to a new position.  
To type a specific location, expand the Position  heading on the left side of the window and type 
new values in the X Center and Y  Center boxes.
When Move Freely   is selected, you can move the selection box along the X or Y axis. When  
Move in X Only  is selected, you can only move the selection box horizontally.  When Move in Y 
Only  is selected, you can only move the selection box vertically.
5.  To zoom in on the selection so the  selection fills the output frame, expand the Source  heading on 
the left side of the window and choose Yes  from the Stretch to  fill frame drop-down list. When No  
is selected, the media retains its original size, and the area outside  the selection box is cropped.
Right-click the workspace to display a shortcut       menu that displays commands to restore, 
center, or flip the selection       box. You can also force the box to match the source media's aspect 
ratio       or your project's output aspect ratio.       Matching the output aspect ratio can prevent black 
bars from appearing       when you use source media (such as photographs) that does not match 
your      project's aspect ratio.
6.  Expand the Source heading on the  left side of the window and choose Yes  from the Stretch to   fill 
frame drop-down list.
7. 
Drag the selection box to  set the viewable portion the event. Your cursor is displayed as a  .
8.  Use the keyframe controller  at the bottom of the Video Event FX window to establish distinct 
settings  throughout the duration of the event. The path of the panning is drawn  in the Video Event 
FX window.
During playback, intermediate frames are interpolated to create smooth  motion. Expand the 
Keyframe  interpolation heading on the left side of the window and drag the  Smoothness slider  to 
adjust the interpolation. For more information, see "Keyframe Animation" on page 294.
Use the Default       Pan/Crop smoothness control on the Editing       tab of the Preferences dialog to 
set the default Smoothness value for      new keyframes.
Editing keyframe interpolation
If you have two or more keyframes, you can expand the Keyframe interpolation  heading and edit the 
Smoothness  setting to adjust the smoothness of the motion.
Smoothness adjusts spatial interpolation: how motion occurs  within the frame. A Smoothness  setting of 0 
produces linear motion from one keyframe to the next. Increasing  the setting produces a curved path.
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