Panning Navigator (panning/preview)
Martijn van Welie
Users need to navigate an area that is larger than the display they use
Reading large texts or viewing maps/images. for example on a Article Page or or even as shown in the example.
From
www.sapient.com
Show a preview of the entire image with the currently viewable area marked
User can change the area they view by dragging the viewable area marking.