Wednesday, September 26, 2007

Drawing on air

How did they do that? ...

"In a recent article, PhysOrg.com reports that a team of computer scientists at Brown University has developed Drawing on Air, a haptic-aided interface to help artists to create 3D illustrations while wearing a virtual reality mask. ‘The technique introduces two new strategies, using one hand or two hands, to give artists the tools they need for drawing different types of curves, and for viewing and editing their work.’ The researchers hope that these techniques will improve the precision with which scientists can interact with their 3D data using a computer. This also would help artists to illustrate complicated artistic, scientific, and medical subjects. Read more for several pictures made with this system.

... But how the images above have been produced? “Drawing on Air uses a stereoscopic desktop display. A Phantom haptic device and 6-Degree-Of-Freedom (DOF) trackers are used for a two-handed input.” (Credit: Brown University)

This project has been led by Daniel Keefe, a postdoc in computer science, Robert Zeleznik, a research director, and David Laidlaw, an associate professor of computer science. The three rsearchers are working at the Visualization Research Lab (VRL) which is headed by David Laidlaw.

Now, let’s look at the PhysOrg.com article for some short quotes, starting by one about the two-handed method. It is “based on the ‘tape drawing’ technique, which is a highly controlled, two-handed method for drawing in 2D. Artists hold a stylus in one hand for drawing and a tracker (hooked up to the virtual reality setup) in the other hand for defining the direction of the line. The artist coordinates the movement of both hands to examine the work from different angles and draw accordingly."    (Continued via ZDNet.com, Roland Piquepaille)    [Usability Resources]

Drawing A Bat Inflight - Usability, User Interface Design

Drawing A Bat Inflight

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