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Proceedings Paper

Parallel coordinates: survey of recent results
Author(s): Alfred Inselberg; Bernard Dimsdale; Avijit Chatterjee; Chao-Kuei Hung
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Paper Abstract

A brief description of the parallel coordinate system is provided, followed by an application to exploratory data analysis of certain multivariate data. The calculation of minimum distance (L2) between trajectories (timed paths) is considered next and close bounds via L1 distance are obtained, a simplification of importance in Air Traffic Control. Line neighborhoods are defined as the totality of lines satisfying certain parameters. The point region defined by the set of points belonging to these sets of lines in general leads to ambiguities as to lines actually belonging to the line neighborhood. This is of importance in applications involving line detection. Eickemeyer's representation of p-flats in N-space is applied to the representation of polytopes. It is shown that this representation permits analysis and display of convexity or non-convexity of the polytope being represented. Finally the representation of surfaces in three dimensions is exhibited. In general such surfaces are represented by two regions, together with a point-by-point association of points in the two regions. For developable surfaces the regions are replaced by curves, the point-by-point association being of a simple nature.

Paper Details

Date Published: 8 September 1993
PDF: 18 pages
Proc. SPIE 1913, Human Vision, Visual Processing, and Digital Display IV, (8 September 1993); doi: 10.1117/12.152733
Show Author Affiliations
Alfred Inselberg, IBM Corp. and Univ. of Southern California (United States)
Bernard Dimsdale, IBM Corp. (United States)
Avijit Chatterjee, IBM Corp. and Univ. of Southern California (United States)
Chao-Kuei Hung, Univ. of Southern California (United States)

Published in SPIE Proceedings Vol. 1913:
Human Vision, Visual Processing, and Digital Display IV
Jan P. Allebach; Bernice E. Rogowitz, Editor(s)

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