Low Cost 3d Rotational Input Devices: the stationary Spinball and the mobile Soap3D

Marcus TönnisFlorian EchtlerManuel HuberGudrun Klinker

This paper introduces a new approach enablingintuitive input of rotational data with low-costoptical sensors. Two devices are built, one fordesktop applications and a mobile wireless device foreverywhere use. The desktop variant, called Spinballmakes the virtual trackball a real device. The mobiledevice, called Soap3d uses a two-layered approachfor device casing, enabling closed hand control.Benefits and construction are illustrated and resultsof expert reviews are discussed.

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