CSDL Home IEEE Transactions on Visualization & Computer Graphics 2009 vol.15 Issue No.06 - November/December

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Issue No.06 - November/December (2009 vol.15)

pp: 1531-1538

Julian Heinrich , Universität Stuttgart

Daniel Weiskopf , Universität Stuttgart

DOI Bookmark: http://doi.ieeecomputersociety.org/10.1109/TVCG.2009.131

ABSTRACT

Typical scientific data is represented on a grid with appropriate interpolation or approximation schemes,defined on a continuous domain. The visualization of such data in parallel coordinates may reveal patterns latently contained in the data and thus can improve the understanding of multidimensional relations. In this paper, we adopt the concept of continuous scatterplots for the visualization of spatially continuous input data to derive a density model for parallel coordinates. Based on the point-line duality between scatterplots and parallel coordinates, we propose a mathematical model that maps density from a continuous scatterplot to parallel coordinates and present different algorithms for both numerical and analytical computation of the resulting density field. In addition, we show how the 2-D model can be used to successively construct continuous parallel coordinates with an arbitrary number of dimensions. Since continuous parallel coordinates interpolate data values within grid cells, a scalable and dense visualization is achieved, which will be demonstrated for typical multi-variate scientific data.

INDEX TERMS

Parallel coordinates, integrating spatial and non-spatial datavisualization, multi-variate visualization, interpolation

CITATION

Julian Heinrich, Daniel Weiskopf, "Continuous Parallel Coordinates",

*IEEE Transactions on Visualization & Computer Graphics*, vol.15, no. 6, pp. 1531-1538, November/December 2009, doi:10.1109/TVCG.2009.131REFERENCES