DR. JAN HADENFELD
		Glätten von Flächen Josef Hoschek, Ulrich Dietz, Jan Hadenfeld1, Technische Hochschule Darmstadt - Holometric Technologies, Aalen - Mercedes-Benz AG, Sindelfingen C.G. Porta2 und Steffen Wahl3 In CAD-systems technical objects are given by set of points or analytic surface representations. Often the faces of these objects are unfair. In this paper energy oriented algorithms are developed to approximate a set of points by fair surfaces or to smooth automatically given unfair surfaces. To get linear (and fast) algorithms in both cases quadratic models of the bending energy of surfaces are used. Minimal values of these energy models lead to smooth and fairshaped surfaces. Problembeschreibung Flächendarstellungen und Energiemodelle Iteratives Glätten von B-Spline-Flächen Ein Schritt des Verfahrens Die Rangnummer Der neue Kontrollpunkt Die Rangliste Abstandstoleranz Der Algorithmus Beispiele Glatte Approximation mit B-Spline-Flächen Ausblick Literatur