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3D-Shaping in CAD Systems by the Steps Creation - Inspection - Optimization

: Roth-Koch, S.

Dankwort, W.; Hoschek, J.:
Reverse Engineering
Stuttgart: Teubner, 1996
ISBN: 3-519-02633-3
Workshop on Current CAX-Problems Reverse Engineering <2, 1996, Kaiserslautern>
Conference Paper
Fraunhofer IPA ()
3D-Geometrie; Computer Aided Design (CAD); Modelldaten; Freiformgeometrie; Geometrie; optischer Sensor

Using fast tactile or optical sensors is a new way to manage the process of geometry definition in the CAD surface model, the 3D-shaping, without the time consuming CAD-construction of the geometry. The digitising of the shape of physical models results in 3D measuring "point clouds". Working on these "point clouds" a new CAD philosophy and new CAD methods are necessary to create CAD surface models. Subject of the paper are CAD methods for feature-based definition of free formed surfaces in CAD models. These methods are usid for mapping geometrical and topological information which is extracted from the measured points.