Assessing Redundant Interface Designs for Precise Number Input in Virtual Reality

Le résumé fourni par la source

Typing and editing precise numerical input, in particular floating-point values, are essential tasks in Spatial Computing for applications such as 3D precision modeling, object measurement, object dimensioning, mathematical visualization, and immersive media creation. Yet the adopted interfaces and interaction techniques in VR/AR/MR are often replicas of flat, palm-sized numpads such as those found in physical calculators or their WIMP counterparts. To move beyond such conventional confines, this paper explores redesigning the numpad by leveraging the spatial freedom of VR with a specific focus on introducing redundancy in the input of floating point values. To do so, we took inspiration from mechanisms such as combination dials, movable numbers, and a mechanical calculator that offer a larger and multi-column number layout. We assess how redundant interfaces can enhance user experience and efficiency when it comes to precise number editing of floating point values. Through a user study (N=30), we compared four numpads where participants engage in inputting a list of target numbers within a virtual environment. Our findings reveal that the redesigned numpads, which utilize redundant design elements, were preferred by users over the conventional numpad design as they provided clearer and more efficient number input methods in VR.

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