Multi-Fisheye Distortion of the Network Map

Tetsuo OKAZAKI  Hiromichi KAWANO  Yuji HATAKEYAMA  

Publication
IEICE TRANSACTIONS on Communications   Vol.E78-B   No.1   pp.61-67
Publication Date: 1995/01/25
Online ISSN: 
DOI: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Network Operations and Management)
Category: 
Keyword: 
large-scale telecommunication network,  map distortion method,  multi-fisheye,  HMI,  GUI,  

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Summary: 
This paper proposes a multi-fisheye distortion method which can show a large-scale telecommunication network in a single window on the display of a workstation or personal computer. This distortion method has three advantages over the conventional single-fisheye distortion method. First, the focus area is magnified smoothly by the fisheye distortion method, and the peripheral area coordinates are calculated linearly to avoid unnecessary distortion. Second, multiple focus areas are magnified smoothly by using an average of the coordinates calculated for the individual focuses. Third, the scale of unnecessary areas is reduced 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 user is tested by a subjective evaluation experiment.