gestures

gestures - Pen-Based Gestural User Interfaces Lecture #6:...

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1 Pen-Based Gestural User Interfaces Lecture #6: Gestures Fall 2009 CAP 6105 – Pen-Based User Interfaces ©Joseph J. LaViola Jr. Joseph J. LaViola Jr. Fall 2009 What is a Pen Gesture? ± Simple ink stroke or strokes to convey an idea ² fast to perform ² easy to remember ± Typically disappear after they are recognized Fall 2009 CAP 6105 – Pen-based User Interfaces ©Joseph J. LaViola Jr. ± Supports in-band interaction
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2 Gesture Types ± Single stroke ± Multi-stroke ² compound gestures ² punctuated gestures ± Trade-off in recognition between single and multiple stroke gestures ± Used in Single stroke gesture Fall 2009 CAP 6105 – Pen-based User Interfaces ©Joseph J. LaViola Jr. Used in ² modeling ² command languages ² invoking interface widgets Multi-stroke gesture Gestures in Modeling ± Used in 2D/3D object modeling ± Distinction between sketch-based modeling and gestures in modeling ± Used to ² create geometry www-ui.is.s.u-tokyo.ac.jp/~takeo/research/teddy/teddy.htm Fall 2009 CAP 6105 – Pen-based User Interfaces ©Joseph J. LaViola Jr. ² manipulate geometry ² guidance for computational algorithms
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3 SKETCH ± Seminal work by Zeleznik et al. (1996) ± Conceptual modeling ± Uses simple lines and curves to build geometric primitives ² cubes, cylinders. pyramids, etc. .. ± No machine learning-based recognition used Fall 2009 CAP 6105 – Pen-based User Interfaces ©Joseph J. LaViola Jr.
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gestures - Pen-Based Gestural User Interfaces Lecture #6:...

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