Impact of form factors and input conditions on absolute indirect-touch pointing tasks
Jérémie Gilliot, Géry Casiez, Nicolas Roussel · 2014
Absolute indirect interaction maps the absolute position of a device's end-effector to the absolute position of a remote on-screen object.Despite its long-time use with graphics tablets and growing use in research prototypes, little is known on the influence of form factors and input conditions on pointing performance with such a mapping. The input and display can have different sizes and aspect ratios, for example. The on-screen targets can vary in size. Users can look solely at the display or at the input device as well. They can also hold the input device in certain cases, or let it rest on a table. This paper reports on two experiments designed to investigate the influence of all these factors on absolute indirect-touch pointing performance. We also provide design guidelines for interaction in these situations based on the observed impacting factors.