HCI

SSééquin’s Professional Interestsquin’s Professional Interests

Art-Math

CAD-CAM Graphics

Design

ArtGeometry

I Love to Build Things …I Love to Build Things …

CCD Camera, Bell Labs, 1973 Soda Hall, Berkeley, 1994

RISC chip, Berkeley, 1981 “Octa-Gear”, Berkeley, 2000

CADAM: Rapid PrototypingCADAM: Rapid Prototypingwith Paul Wright (ME)with Paul Wright (ME)

Physical Rapid Prototypes:

For early user testing,

and hands-on feedback

in application context.

Zcorp 3D-printer FDM

EE – ME Design Domain CouplingEE – ME Design Domain Coupling(with Paul Wright, ME)(with Paul Wright, ME)

Button Mote Design from NEST Group

• PCB Contact Pads and Lid Access Holes are considered features.• Access Holes are coupled to Contact Pads geometrically by position

and size.• Alteration of center location of Contact Pads (Electrical Domain) will

drastically effect Access Holes (Mechanical Domain) center locations.

Coupling

Art-Math ConnectionArt-Math Connection

V-artV-art

VirtualGlassScherkTowerwithMonkeySaddles

(Radiance 40 hours)

Jane Yen

Brent CollinsBrent Collins

“Hyperbolic Hexagon II”

Snow-sculpting Championship 2003Snow-sculpting Championship 2003

CAD tools for Ideation, Informal PrototypingCAD tools for Ideation, Informal Prototyping

Mimick the best of: clay, wire, paper, scotch-tape, styrofoam …

Without the adversity of: messy glue, gravity, strength limits …

Make available pseudo-physical materials that bend as nicely as steel wire, and stretch like a nylon hose, but are strong as titanium, and as transparent as quartz …

Tele- Collaborative VR Workstation Tele- Collaborative VR Workstation for Designing Across the Internetfor Designing Across the Internet

(with Sara McMains, ME)(with Sara McMains, ME)

See in 3D,Touch, feel,Annotate,Modify,Share, Discuss …

Collaborative VR WorkstationCollaborative VR Workstation

A student interacting with a Ford Explorer model displayed on the workstation

(simulated 3D effect showing the part where the user perceives it to be).

Model AnnotationModel Annotation

Drawing on a virtual bunny with a brush tool with haptic force-feedback.

Better Surface Design ToolsBetter Surface Design Tools

Based on optimization of a functional

E.g., MVS for aesthetics(Minimum [curvature] Var.)

Fewer controls to manipulate

Explicit consideration of constraints

Automatic attainment of some quality objectives.

Smooth Lines on Smooth SurfacesSmooth Lines on Smooth Surfaces(+ partitioning along these lines)(+ partitioning along these lines)

Given a smooth surface, and some tiling symmetry group:

cut the surface up accordingly with smooth boundaries.

Escher-like Tiling Patterns Escher-like Tiling Patterns on Higher-Genus Surfaceson Higher-Genus Surfaces

60 Tiles on Genus-0 168 Tiles on Genus-3

The New CITRIS BuildingThe New CITRIS Building

Extension of Berkeley Walkthru:

Visualization, Energy Analysis, Emergency Response …(thousands of sensors).