The Zoom Menu

The Zoom menu controls zooming, panning, and flipping of an image within a frame:

• The image can be flipped along the X and/or Y axes.
• The absolute zoom factor can be set to 1, 2, or 4.
• The zoom factor can be set relative to the current zoom factor (zooming in or out by a factor or 2 or 4).
• The image can be re-centered at the current zoom.
• The image can be re-centered at zoom factor 1.
• A pan x,y position can be input using a dialog box. (The first two arguments specify the pan position, while the third and fourth arguments specify zoom factor(s).)
• The current pan and zoom factors can be displayed.

The Enable/Disable Auto Flip menu option allows you to toggle the automatic orientation of images to that "north is up". See Autoflip of Images for more information.

The Panner/Magnifier sub-menu controls the display of the panner/magnifier window. When the panner is activated, a panner window shows the entirety of the loaded image, as well as the section of the image currently being displayed. The magnifier displays a pixel-replicated blow-up of the image centered at the mouse position. The pixel replication factor can be changed using the Set Magnifier Zoom sub-menu.

For more information, see Panning and Zooming.

Last Updated July 5, 1998