Study of the Effect of the Directness of the Interaction on Novice Users When Drawing Straight Lines

Abstract : Pen-enabled devices are widely used in computer graphics. Some artists use direct devices (interactive pen displays) whereas others use indirect devices (graphics tablets) and this applies to both professionals and hobby-ists. In this paper we studied how indirect pen-enabled devices affect drawing performance compared to their direct counterparts for novice users. We also studied the influence of gain for indirect pen-enabled devices. We considered no gain (i.e. C/D=1), a homogenous gain (gain=2 on both the x and y axes) and a heterogenous gain (gain=2 on the x axis and gain=1 on the y axis). Results indicate that drawing performance and quality decreased with in-directness and with both homogeneous and heterogeneous gains. In addition, we conducted a qualitative study showing that participants preferred direct devices.
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Élisabeth Rousset, François Bérard, Michaël Ortega. Study of the Effect of the Directness of the Interaction on Novice Users When Drawing Straight Lines. 27ème conférence francophone sur l'Interaction Homme-Machine., Oct 2015, Toulouse, France. pp.a14, ⟨10.1145/2820619.2820633⟩. ⟨hal-01218668⟩

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