In the real world, we use our innate manual dexterity to createÃ‚Â and manipulate 3D objects. Conventional virtual design toolsÃ‚Â largely neglect this skill by imposing non-intuitive 2D controlÃ‚Â mechanisms for interacting with 3D design models. Their usageÃ‚Â is thus cumbersome, time consuming and requires training. WeÃ‚Â propose a novel design paradigm that combines usersÃ¢â‚¬â„¢ manualÃ‚Â dexterity with the physical affordances of non-instrumented andÃ‚Â ordinary objects to support virtual 3D design constructions. WeÃ‚Â demonstrate this paradigm through Proto-TAI, a quick prototypingÃ‚Â application where 2D shapes are assembled into 3D representationsÃ‚Â of ideated design concepts. Here, users can create 2DÃ‚Â shapes in a pen-based sketch medium and use expressive handheldÃ‚Â movements of a planar proxy to configure the shapes in 3DÃ‚Â space. The proxy provides a metaphorical means for possessingÃ‚Â and controlling the shapes. Here, a depth sensor and computerÃ‚Â vision algorithms track the proxyÃ¢â‚¬â„¢s spatial movement. The 3D designÃ‚Â prototype constructed in our system can be fabricated usingÃ‚Â a laser cutter and physically assembled on-the-fly. Our systemÃ‚Â has vast implications in many design and assembly contexts, andÃ‚Â we demonstrate its usability and efficacy through user studiesÃ‚Â and evaluations.
Link To PDF:Ã‚Â DETC2014-35442