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Creative shape interpretation in paper scribbles

: Roth-Koch, Sabine


Sarfraz, M. ; Institute of Electrical and Electronics Engineers -IEEE-; IEEE Computer Society:
3rd International Conference on Geometric Modeling & Imaging, GMAI 2008. Modern Techniques and Applications : 9-11 July 2008, London, UK
New York, NY: IEEE, 2008
ISBN: 978-0-7695-3270-7
International Conference on Geometric Modeling and Imaging (GMAI) <3, 2008, London>
Fraunhofer IPA ()
CAD-Modellieren; Produktdatenmodell; Handskizze; Produktentwicklung; Geometrische Form; technische Zeichnung; unscharfe Daten

The virtual product data model in its different stages is an essential prereqisite for the virtual modeling of processes amd their virtual simulation. Product design starts with conceptual design including the concepts for the future product's shape and function - the gestalt. In this stage, the designers work on fuzzy product data interpreted in so-called scribbles and applied to perception modeling amd shape creating.
In the paper we will suppose methods to analyze paper scribbles for the creation of fuzzy-spline pre-CAD shape models. In particular, the paper discusses special geometrical issues that are concerned with the interpretation of the future product's contours within paper scribbles and virtual pre-CAD models. Examples of curve and closed region modeling strategies based on a blurred 2D description will be presented. The implemented algorithms combine image-based modeling methods with usual Computer-Aided Design (CAD) modeling strategies.