NDLI: SpaceFold and PhysicLenses: simultaneous multifocus navigation on touch surfaces

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SpaceFold and PhysicLenses: simultaneous multifocus navigation on touch surfaces

Content Provider	ACM Digital Library
Author	Reiterer, Harald Butscher, Simon Hornbæk, Kasper
Abstract	Many tasks performed in multiscale visual spaces require the user to have several foci. Using bimanual interaction, multitouch devices can facilitate the simultaneous definition and exploration of several foci. However, multitouch is rarely used for multifocus navigation, and may limit the interaction to a sequential definition of areas of interest. We introduce two novel navigation techniques that combine multiple foci and bimanual touch, and therefore enable the isochronic definition of areas of interest, leading to simultaneous multifocus navigation. SpaceFold folds the visual space in the third dimension, allowing users to bring objects closer to each other. Our technique enables a direct, bimanual manipulation of a folded space and therefore provides high flexibility. PhysicLenses uses multiple magnification lenses to compare objects. Using a physics model, PhysicLenses introduces a general solution for the arrangement of multiple lenses within the viewport. We conducted a controlled experiment with 24 participants to compare the techniques with split screen. The results show that SpaceFold significantly outperformed all other techniques, whereas PhysicLenses was just as fast as split screen.
Starting Page	209
Ending Page	216
Page Count	8
File Format	PDF
ISBN	9781450327756
DOI	10.1145/2598153.2598177
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2014-05-27
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Bimanual input Multiscale navigation Multifocus visualization
Content Type	Text
Resource Type	Article

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