DRAWING ON SKETCHPAD Ch 4 HCI Remixed Sutherland

DRAWING ON SKETCHPAD Ch 4, HCI Remixed Sutherland, Sketchpad: A Man-Machine Graphical Communication System Bederson, Hollan, Pad++: A Zooming Graphical Interface for Exploring Alternate Interface Physics

Drawing on Sketch. Pad: Reflections on Computer Science and HCI � Joseph A. Konstan � Ph. D Berkeley (CS) � Faculty at University of Minnesota, (CS&E) � Research areas: HCI, recommender systems, online community, info visualization

Drawing on Sketch. Pad: Reflections on Computer Science and HCI � � � HCI has a place in CS Drawing programs that “[take] full advantage of computing” Pointing at Rendering of basic objects Making constraints visible and explicit Programming Structures

Sketch. Pad: A Man-Machine Graphical Communication System � Ivan E. Sutherland � Ph. D, MIT, CSEE Sketchpad developed as part of diss. work � Context of paper: � Published in 1963, � Influenced: GUIs, CAD, OOP, HCI

Sketch. Pad: A Man-Machine Graphical Communication System � Summary: � Lines, circles, text � Constraints � Ring structure, storage of objects, copying � Recursive functions � Light pen and pointing

Pad++: A Zooming Graphical Interface for Exploring Alternate Interface Physics � Benjamin B. Bederson � Ph. D, New York University, CS � Currently at UMD, HCIL � At the time of the paper, at Bell Communications Research (Computer Graphics & Interactive Media) � Research Areas: HCI, computer graphics, � James D. Hollan � Ph. D, University of Florida � Currently at UC San Diego, Dept of Cognitive Science � At the time of the paper, at UNM, CS � Research Areas: HCI, distributed cognition, visualization

Pad++: A Zooming Graphical Interface for Exploring Alternate Interface Physics � Summary: � Digital objects with visible history � Zooming as a basic function of interaction � Local detail vs global context � Showing hyperlink relationships � Directory browser and databases � Limits of metaphor

DISCUSSION!