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Influence of Container Resolutions on the Layout Stability of Squarified and Slice-And-Dice Treemaps

Knauthe, Volker ; Ballweg, Kathrin ; Wunderlich, Marcel ; Landesberger von Antburg, Tatiana ; Guthe, Stefan (2020):
Influence of Container Resolutions on the Layout Stability of Squarified and Slice-And-Dice Treemaps.
pp. 97-101, EuroVis 2020: 11th International EuroVis Workshop on Visual Analytics, virtual Conference, 25.-29.05.2020, DOI: 10.2312/evs.20201055,
[Conference or Workshop Item]

Abstract

In this paper, we analyze the layout stability for the squarify and slice-and-dice treemap layout algorithms when changingthe visualization containers resolution. We also explore how rescaling a finished layout to another resolution compares toa recalculated layout, i.e. fixed layout versus changing layout. For our evaluation, we examine a real world use-case anduse a total of 240000 random data treemap visualizations. Rescaling slice-and-dice or squarify layouts affects the aspectratios. Recalculating slice-and-dice layouts is equivalent to rescaling since the layout is not affected by changing the containerresolution. Recalculating squarify layouts, on the other hand, yields stable aspect ratios but results in potentially huge layoutchanges. Finally, we provide guidelines for using rescaling, recalculation and the choice of algorithm.

Item Type: Conference or Workshop Item
Erschienen: 2020
Creators: Knauthe, Volker ; Ballweg, Kathrin ; Wunderlich, Marcel ; Landesberger von Antburg, Tatiana ; Guthe, Stefan
Title: Influence of Container Resolutions on the Layout Stability of Squarified and Slice-And-Dice Treemaps
Language: English
Abstract:

In this paper, we analyze the layout stability for the squarify and slice-and-dice treemap layout algorithms when changingthe visualization containers resolution. We also explore how rescaling a finished layout to another resolution compares toa recalculated layout, i.e. fixed layout versus changing layout. For our evaluation, we examine a real world use-case anduse a total of 240000 random data treemap visualizations. Rescaling slice-and-dice or squarify layouts affects the aspectratios. Recalculating slice-and-dice layouts is equivalent to rescaling since the layout is not affected by changing the containerresolution. Recalculating squarify layouts, on the other hand, yields stable aspect ratios but results in potentially huge layoutchanges. Finally, we provide guidelines for using rescaling, recalculation and the choice of algorithm.

Uncontrolled Keywords: Human-centered computing, Treemaps
Divisions: 20 Department of Computer Science
20 Department of Computer Science > Interactive Graphics Systems
Event Title: EuroVis 2020: 11th International EuroVis Workshop on Visual Analytics
Event Location: virtual Conference
Event Dates: 25.-29.05.2020
Date Deposited: 29 May 2020 06:20
DOI: 10.2312/evs.20201055
Official URL: https://conferences.eg.org/egev20/program/
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