Colloquium Computer Science: Dr. M. Barton / BCAM Spain
|When:||Th 12-04-2018 16:00 - 17:00|
|Where:||Bernoulliborg, room 267|
Title: Geometric modelling and manufacturing
Geometric modeling is very closely related to manufacturing in situations when objects modeled in the digital realm are subsequently manufactured. While designing a NURBS surface using a proper software is very straightforward by moving its control points, it is rather difficult to find manufacturable segments on such a general free-form surface. In this talk, I will review our recent work in this reverse engineering direction and discuss possibilities and limitations of geometrical approaches that aim at approximating general free-form geometry by manufacturable patches. In particular, I will briefly discuss three projects that use circular arc splines , sweeps of planar profiles , and envelopes of surfaces of revolution .
 Barton M., Shi L., Killian M., Wallner J., Pottmann H. Circular arc snakes and kinematic surface generation, Computer Graphics Forum, 32 (1), 1-10, 2013.
 Barton M., Pottmann H., Wallner J. Detection and reconstruction of freeform sweeps, Computer Graphics Forum, 33 (2), 23-32, 2014.
 Bo P., Barton M., Plakhotnik D., Pottmann H. Towards efficient 5-axis flank CNC machining of free-form surfaces via fitting envelopes of surfaces of revolution, Computer Aided Design 79, 1–11, 2016.