recently, the pen has gained atte
ntion as a new kind of input
modality given its compatibility with natural interface
experiences. The pen can not only provide 2D information
of the pen tip, but also other information such as writing
pressure, 3D orientation, and
3D rotation. There is some
research on techniques to incorporate this information with
pen-based interaction [25] [10] [30].
In this paper, we present a new type of menu based on 3D
orientation, called the Tilt Menu. As shown in Figure 1, by
using the pen’s 3D orientation information to perform
selection tasks, the Tilt Menu
supports selection without
any pen tip movements. Therefore, as a one-handed
technique, the Tilt Menu can smoothly merge command
selection and direct manipulation in freeform drawing tasks