Reliance on the physical inappropiate for context

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Unformatted text preview: Reliance on the visual. Reliance on the physical. Inappropiate for context. Reasons to have a gestural interface: Reasons have – – – – More natural interactions. Less visible hardware. More flexibility. More fun. 6 Index Introducing interactive gestures. Designing for the human body. Patterns for touchscreens. Patterns for free-form gestures. Documenting interactive gestures. Prototyping interactive gestures. Communicating interactive gestures. The future of interactive gestures. 7 Designing for the human body It’s necessary to understand how the human body moves. Kinesiology. Know the limits of the body. “The Know “The more complicated the gesture, the fewer the people who will be able to perform it”. Fingers present a diameter from 16mm to 20mm in Fingers adults and are more inaccurate than cursors. “Don’t make similar gestures for different actions”. make 8 Designing for the human body “Never put essential information under an interface element that can be touched, it may be hidden by the arm or hand”. Touch targets: Fitt’s Law Touch Fitt’s – Time to reach target is proportional to the distance divided by the Time size of the object. size – Avoid placing targets at edges of screen for gestural interfaces. – Use 1x1cm as minimum target size. Adaptative targets. 9 Index Introducing interactive gestures. Designing for the human body. Patterns for touchscreens. Patterns for free-form gesture...
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This document was uploaded on 03/21/2014.

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