ROTATION EXAMPLE
The Zoomify Image Viewer supports rotation in 90-degree increments. The rotation buttons are not visible by default but can
be displayed by simply using the HTML parameter zRotationVisible=1. Rotation respects pan constraints and can be used in
initial view settings, hotspot/annotation settings, and tours and slideshows. The '<' and '>' keys can also be used to rotate
the image counter clockwise and clockwise (if rotation is enabled using the above parameter).