A new weaving technique for handling overlapping regions

Authors:
Martin Luboschik;Axel Radloff;Heidrun Schumann
Affiliations:
University of Rostock, Germany;University of Rostock, Germany;University of Rostock, Germany
Venue:
Proceedings of the International Conference on Advanced Visual Interfaces
Year:
2010

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Abstract

The use of transparencies is a common strategy in visual representations to guarantee the visibility of different overlapping graphical objects, especially, if no visibility-deciding order is given (e.g., importance, depth). Alpha-blending, however, could generate new colors that are not specified by the given color scale and overlapping shapes may become difficult to be separated visually and the selection of specific elements would be difficult. In this paper, we present a new approach for representing overlapping regions: Instead of blending different colors, our weaving technique separates the original colors and shapes are easier to differentiate. Due to a deterministic weaving order, all overlapping objects are visible. We apply our approach to scatter plot visualizations to enhance the communication of overlapping clusters.