MULTI-FISHEYE DISTORTION OF THE NETWORK MAP

This paper proposes a multi-fisheye distortion method which can show a large-scale telecommunication network in a single window on the displ ay of a workstation or personal computer. This distortion method has t hree advantages over the conventional single-fisheye distortion method . First, the focus area is magnified smoothly by the fisheye distortio n method, and the peripheral area coordinates are calculated linearly to avoid unnecessary distortion. Second, multiple focus areas are magn ified smoothly by using an average of the coordinates calculated for t he individual focuses. Third, the scale of unnecessary areas is reduce d to provide sufficient space for magnification. The effectiveness of this method is demonstrated by applying to the display of large-scale networks. The effect of the resulting network map distortion on the us er is tested by a subjective evaluation experiment.