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Features in Continuous Parallel Coordinates
Dec. 2011 (vol. 17 no. 12)
pp. 1912-1921
Dirk J. Lehmann, Department of Simulation and Graphics, University of Magdeburg, Germany
Holger Theisel, Department of Simulation and Graphics, University of Magdeburg, Germany
Continuous Parallel Coordinates (CPC) are a contemporary visualization technique in order to combine several scalar fields, given over a common domain. They facilitate a continuous view for parallel coordinates by considering a smooth scalar field instead of a finite number of straight lines. We show that there are feature curves in CPC which appear to be the dominant structures of a CPC. We present methods to extract and classify them and demonstrate their usefulness to enhance the visualization of CPCs. In particular, we show that these feature curves are related to discontinuities in Continuous Scatterplots (CSP). We show this by exploiting a curve-curve duality between parallel and Cartesian coordinates, which is a generalization of the well-known point-line duality. Furthermore, we illustrate the theoretical considerations. Concluding, we discuss relations and aspects of the CPC's/CSP's features concerning the data analysis.

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Index Terms:
Features, Parallel Coordinates, Topology, Visualization.
Citation:
Dirk J. Lehmann, Holger Theisel, "Features in Continuous Parallel Coordinates," IEEE Transactions on Visualization and Computer Graphics, vol. 17, no. 12, pp. 1912-1921, Dec. 2011, doi:10.1109/TVCG.2011.200
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