Can I specify negative rotation values in the Zoomify Rotation Viewer?
Yes. Values below 0 will be automatically converted internally to the appropriate value between 0 and 360. Note that clicking the Reset Initial View button will initiate a zoom-to-view transition to the initial X, Y, Zoom, and rotation values, and that the shortest path will be taken. For example, if the current rotation is 185 degrees and the initial rotation was 0 degrees, the view will rotate clockwise in returning to 0. However, if the current rotation is 175 degrees, the view will rotate counter-clockwise in returning to 0.