gestures - 1 Fall 2008 CAP 6938 Topics in Pen-Based User...

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Unformatted text preview: 1 Fall 2008 CAP 6938 Topics in Pen-Based User Interfaces Joseph J. LaViola Jr. Pen-Based Gestural User Interfaces Lecture #6: Gestures Joseph J. LaViola Jr. Fall 2008 Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. What is a Pen Gesture? Simple ink stroke or strokes to convey an idea fast to perform easy to remember Typically disappear after they are recognized Supports in-band interaction 2 Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. Gesture Types Single stroke Multi-stroke compound gestures punctuated gestures Trade-off in recognition between single and multiple stroke gestures Used in modeling command languages invoking interface widgets Single stroke gesture Multi-stroke gesture Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. Gestures in Modeling Used in 2D/3D object modeling Distinction between sketch-based modeling and gestures in modeling Used to create geometry manipulate geometry guidance for computational algorithms www-ui.is.s.u-tokyo.ac.jp/~takeo/research/teddy/teddy.htm 3 Fall 2008 CAP 6938 Topics in Pen-based User Interfaces Joseph J. LaViola Jr. SKETCH Seminal work by Zeleznik et al. (1996) Conceptual modeling Uses simple lines and curves to build geometric primitives cubes, cylinders. pyramids, etc......
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gestures - 1 Fall 2008 CAP 6938 Topics in Pen-Based User...

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