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Research Bernoulli Institute Calendar Colloquia - Computer Science

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

Abstract:

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 [1], sweeps of planar profiles [2], and envelopes of surfaces of revolution [3].

REFERENCES

[1] 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.

[2] Barton M., Pottmann H., Wallner J. Detection and reconstruction of freeform sweeps, Computer Graphics Forum, 33 (2), 23-32, 2014.

[3] 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.