FlowRep software identifies curve networks to sketch 3D shapes as 2D line drawings

Alla Sheffer, a computer scientist at Canada’s University of British Columbia, has developed software called “FlowRep” that can extract the “descriptive compact 3D curve networks” from manmade 3D shapes and use them to create visually informative 2D sketches.

from 3ders.org - http://www.3ders.org