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    • 35-Issue 3
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    Composite Flow Maps

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    Date
    2016
    Author
    Cornel, Daniel
    Konev, Artem
    Sadransky, Bernhard
    Horváth, Zsolt
    Brambilla, Andrea
    Viola, Ivan
    Waser, Jürgen
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    Abstract
    Flow maps are widely used to provide an overview of geospatial transportation data. Existing solutions lack the support for the interactive exploration of multiple flow components at once. Flow components are given by different materials being transported, different flow directions, or by the need for comparing alternative scenarios. In this paper, we combine flows as individual ribbons in one composite flow map. The presented approach can handle an arbitrary number of sources and sinks. To avoid visual clutter, we simplify our flow maps based on a force-driven algorithm, accounting for restrictions with respect to application semantics. The goal is to preserve important characteristics of the geospatial context. This feature also enables us to highlight relevant spatial information on top of the flow map such as traffic conditions or accessibility. The flow map is computed on the basis of flows between zones. We describe a method for auto-deriving zones from geospatial data according to application requirements. We demonstrate the method in real-world applications, including transportation logistics, evacuation procedures, and water simulation. Our results are evaluated with experts from corresponding fields.
    BibTeX
    @article {10.1111:cgf.12922,
    journal = {Computer Graphics Forum},
    title = {{Composite Flow Maps}},
    author = {Cornel, Daniel and Konev, Artem and Sadransky, Bernhard and Horváth, Zsolt and Brambilla, Andrea and Viola, Ivan and Waser, Jürgen},
    year = {2016},
    publisher = {The Eurographics Association and John Wiley & Sons Ltd.},
    ISSN = {1467-8659},
    DOI = {10.1111/cgf.12922}
    }
    URI
    http://dx.doi.org/10.1111/cgf.12922
    https://diglib.eg.org:443/handle/10
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    • 35-Issue 3
    • EuroVis16: Eurographics Conference on Visualization

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