Interstices: Sustained Spatial Relationships between Hands and Surfaces Reveal Anticipated Action

Andrew M Webb (1) , Hannah Fowler (2) , Andruid Kerne (2) , Galen Newman (2) , Jun-Hyun Kim (3) , Wendy Mackay (1)

1 EX-SITU - Extreme Interaction
2 Texas A&M University [College Station]
3 Michigan State University [East Lansing]

Our observations of landscape architecture students revealed a new phenomenon—interstices. Their bimanual interactions with a pen and touch surface involved various sustained hand gestures, interleaved between their regular commands. Positioning of the non-preferred hand indicates anticipated actions, including: sustained hovering near the surface; pulled back but still floating above the surface; and resting in their laps. We ran a second study with 14 landscape architect students which confirmed our observations, and uncovered a new interstice i.e. stabilizing the preferred hand while handwriting. We conclude with directions for future research and challenges for designers and researchers.

Mots clés: Pen and touch; Hover gestures; Bimanual interaction

Domaines: Interface homme-machine [cs.HC]

Andrew M Webb, Hannah Fowler, Andruid Kerne, Galen Newman, Jun-Hyun Kim, et al.. Interstices: Sustained Spatial Relationships between Hands and Surfaces Reveal Anticipated Action. CHI 2019 - The ACM CHI Conference on Human Factors in Computing Systems, May 2019, Glasgow, United Kingdom. ⟨10.1145/3290605.3300818⟩. ⟨hal-02276959⟩