Information Technology Reference
In-Depth Information
7
Finger Gesture Interaction on
Large Tabletop for Sharing Digital
Documents
among Multiple Users
Yue Shi, Chun Yu, and Yuanchun Shi
CoNTENTS
7.1 Introduction ................................................................................................ 168
7.2 Related Works............................................................................................. 168
7.3 User Interface Design ................................................................................ 169
7.3.1 Design Considerations .................................................................. 169
7.3.2 Gestures Needed............................................................................ 169
7.4 A Prototype Application........................................................................... 170
7.4.1 uTable............................................................................................... 170
7.4.2 JuTable.............................................................................................. 171
7.4.2.1 Single Finger Operation ................................................. 171
7.4.2.2 Double Finger Operation ............................................... 173
7.4.2.3 Finger Trajectory Operation .......................................... 174
7.5 Discussion ................................................................................................... 177
7.6 Conclusion .................................................................................................. 177
References............................................................................................................. 178
Sharing digital documents among multiple users on a large tabletop is one
of the typical application scenarios for tabletop systems. In this chapter, we
elaborate on the guidelines of designing a user interface for this application
scenario. A set of finger gestures are then defined within the interface that
includes single finger operation for selecting, moving, and delivering a digital
document among multiple users; double finger operation for resizing and
rotating a digital document; trajectory operation for creating and deleting
a user work area; and creating, deleting, and copying a digital document.
A prototype tabletop application called JuTable is developed to explore these
gestures. A discussion on learnability, usability, and the naturalness of our
interface design for this application scenario is last.
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