1 Gestural and Bimanual Input Doantam Phan CS 376 Discussion

2 Marking Menus Pen-based radial menu that allows users to select options based on direction of movement Easy for novices and beginners Faster to perform

3 Long Term Study Two users: one expert, one novice annotated conversation data over a month How else might the study have been done? How do marking menus compare to context menus with keyboard shortcuts? Was there a non-marking menu way to accomplish the tasks (hotkeys)?

4 Menus in the real world Many things are still linear menus – barriers to adoption? Pie Menus (in Denim, the Sims) Alias | Wavefront Others?

5 T3 Prototype (Old) Tablets, Two- Hands, Toolglass Allow independent movement of toolglass and cursor How would you make these features self-revealing? They say training covers all

6 StudioPaint Dropped Rotation- aware widgets Is this an issue? Better Sweeping Have mix of GUI and new input styles Would users be interested in adopting T3 as it was or as it is in StudioPaint?

7 T3 Today Tablet PCs are now in (not Wacom) Is two handed input that important for drawing apps? Is there bimanual interaction with a Tablet PC? Maybe give it a sensor that measures orientation and attitude?

8 Real-World Interface Props Use passive props to allow expert users (neurosurgeons) to manipulate a familiar object which controls a computer representation As opposed to abstract gestures on virtual objects

9 Extending Props Props clutter the real world? Can you be precise with props? What are props good for? Only for interacting with a 3D model? Can you make generic props (one sphere, one cube, one plane, one line) and remap per application? What about props versus haptics? Is it the difference between passive and active?

10 Future Gestures Minority Report - Video manipulation John Underkoffler (Media Lab) A consistent language for gestures seems to exist in the clip (copy, zoom, frame) Johnny Mnemonic – Navigation on the internet

11 Gestures versus Props When are gestures used? When speaking … “I once caught a fish…” Hard to specify precise quantities Most of the time our gestures aren’t under our exact control. So when would it be useful? Gesture versus direct manipulation?

12 Brainstorming Choose gestures, props, bimanual input (or all of them!) What is a good use for them that isn’t one of the papers we read?