Visualization and Computer Graphics LabJacobs University

Lars Linsen

Jacobs University, Bremen, Germany

Augsburg27.-28.06.2015

Volume Data Meets InfoVis:Visual Analysis of Ensemble Simulations

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Visualization and Computer Graphics LabJacobs University

Volume Data Visualization

Physical simulations– Climate research– Astrophysics

Data:– Volume data– Multiple data fields– Time-varying data– Ensemble simulations

Data size:– TB

500,000 Particles

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Visualization and Computer Graphics LabJacobs University

Need for …

Aggregated viewsStatistical methodsUncertainty visualizationInteractive analysis of Big Data

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Visualization and Computer Graphics LabJacobs University

Aggregation …

over time, over space,over fields, over runs, orover any combination of the above.

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Visualization and Computer Graphics LabJacobs University

Aggregation over space

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Visualization and Computer Graphics LabJacobs University

Aggregation over space

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Visualization and Computer Graphics LabJacobs University

Ensemble simulations

Goal: Similarity diagrams for multiple simulation runsCompare isosurface similarity of different runs at different points in timeDepict changes over time

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Visualization and Computer Graphics LabJacobs University

Synthetic data

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Visualization and Computer Graphics LabJacobs University

Climate simulation

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Visualization and Computer Graphics LabJacobs University

Astrophysical simulation

Parameter visualization:Brightness encodes mass ratio

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Visualization and Computer Graphics LabJacobs University

Aggregation over space and runs

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Visualization and Computer Graphics LabJacobs University

Relation to uncertainty

Weather forecast

[ARD] [Whitaker et al.]

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Visualization and Computer Graphics LabJacobs University

Aggregation over time, space, and runs

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Visualization and Computer Graphics LabJacobs University

Multiple fields

Multi-dimensional attribute space

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Visualization and Computer Graphics LabJacobs University

Multiple fields

Continuous representation

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Visualization and Computer Graphics LabJacobs University

Conclusion

Volume Data Meets InfoVis needsAggregated viewsStatistical methodsUncertainty visualizationInteractive analysis of Big Data

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Visualization and Computer Graphics LabJacobs University

Thank you!