Interactive Extraction and Re-Design of Sweep Geometries
We introduce two interactive extraction modules that can fit the parameters of generalized sweeps to large, unstructured meshes for immediate, high-level, detail-preserving modification. These modules represent two extremes in a spectrum of parameterized shapes: rotational sweeps defined by a few global parameters, and progressive sweeps forming generalized cylinders with many slowly varying local parameters. Both modules are initialized and controlled by the user drawing a few strokes onto the displayed original model. We demonstrate the system on various shapes, ranging from clean, mechanical geometries to organic forms with intricate surface details.
James Andrews, Pushkar Joshi, and Carlo Séquin. "Interactive Extraction and Re-Design of Sweep Geometries". In Computer Graphics International 2011, June 2011.