Curvature Dial Eyes free parameter entry for GUIs

Curvature Dial: Eyes free parameter entry for GUIs mc schraefel, Graham Smith, Patrick Baudisch IAM Group, U of Southampton Microsoft Research Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

DEMO You can download it now Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Curvature Dial What it is Motivation Related work Radial scroll Virtual Scroll Ring Bonus material Test Suite Comparisons Live Demo (Audience Participation) Future Questions Conclusions Questions Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Motivation Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Cosθ=A • B / |A||B| Developed to address problem of scrolling on touch-based devices, like tablets and wall displays Hinckley, K. , et al. Quantitative Analysis of Scrolling Techniques. CHI’ 02 Motivation Baudisch, et al Dragand. Pop and Drag-and-Pick Interact 2003 Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Related Work Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Radial Scroll Smooth, variable-speed scrolling in one dimension for stylus/touch input Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Evans, Tablet-Based Valuators That Provide One, Two, or Three Degrees of Freedom. Computer Graphics Taking advantage of the Vernier Effect Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

But Lo! A problem • Jump, go ahead and. . . Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Curvature Dial: for real value, eyes-free parameter entry - in particular for touch-screen input. - eyes-free extension for techniques like Guimbretiere and Winograd’s Flow. Menus Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

UIST 05: the year of the dial • Radial Scroll (pre Curvature Drag) • Virtual Scroll Ring Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Comparison with Virtual Scroll Ring Radial/Curvature VSR Uses curvature around a point; low processing requirements Uses distance travelled around circumference Evaluation: Cockburn and Savage-like, target acquisitions (headers/images) Evaluation: Hinckley et al. reciprocal framing Vernier Effect Inverse Tested: touch/stylus input on 2 platforms Tested: desktop VSR against mouse wheel on laptop Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

When Where and How The Pilot Studies Contributions by Pat, mc and Sacha Brostoff, Ray Cooke (Southampton) Tomer Mocovich (Brown) Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Questions • How do the techniques compare for stylus based computing? • How do they work on distinct platforms? • How do different distances effect? Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Things NOT looking at • How to invoke • How to go in multiple directions • Want to focus on where and what contexts are most appropriate • So…series of pilot studies Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Studies: Zoom and Scroll SCROLLING Compare Dialing techniques against scroll bars for scrolling: FACTORS: distance, platform ZOOMING Compare Dialing techniques against stroke (hand tool-like eyes free stroke): FACTORS: distance, platform Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Platforms Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Test Suite Compare Dial types for scrolling/zooming and variable distances Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Study 1: scrolling, smartboard Movement Time for scrolling task on Smartboard Error rates for the Smartboard task Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Lessons Learned: Study 1 • Scroll bars win on the large screen, but VSR significantly better than other dials • VSR more learnable: big distances, big circles seem more learnable than the Vernier approach of small circles • Problem with Vernier approach may be implementation issues Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Study 2: Scrolling/PDA Long Distance Time Lessons Learned: PDA is a useful space for dialing - interesting trade-offs on error performances Errors Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Study 3: Zooming, Smartboard Time Errors Lessons Learned • Stroking has some interesting properties to explore: competes with VSR • Great performance, but people prefer VSR • Observe: short little multiple, rather than long strokes Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Study 4: Zooming, PDA Size Time Stroking more efficient; errors about the same; Virtual Scroll Ring preferred Errors Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Next Steps from studies • Curvature Dial against VSR (both non-accelerated) scrolling, four distances: Pick a winner and run with it • Winner accelerated vs. non-accelerated, again scrolling, four distances: pick a winner and run with it • Hand tool against accelerated hand tools: pick a winner • winner hand tool against winner dial • just scrollbar: four document lengths and three display sizes and four distances: where does it break • Winner incremental technique vs. scrollbar vs. combined technique, four document lengths and four distances, three display sizes Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Conclusions • Dialing is worth investigating for PDA’s especially • VSR is a strong favorite • Vernier needs to be revisited • Keep Checking: test suite will be updated regularly • Thoughts/ideas welcome Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip

Questions (Pat last seen answering questions) Thank you (to Ed and Jan especially!). Try It: http: //www. mytea. ecs. soton. ac. uk/dial/testsuite/scroll. Demo. zip