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Pen-Based User Interface for GeometricDecomposition for Hexahedral MeshGeneration

Jean Hsiang-Chun Lu, Inho Song, William Roshan Quadros, and KenjiShimada

Proceedings, 19th International Meshing Roundtable, Springer-Verlag, pp.263-278, October 3-6 2010

IMR
PROCEEDINGS

19th International Meshing Roundtable
Chattanooga, Tennessee, USA.
October 3-6, 2010

Carnegie Mellon University, Pittsburgh, PA,
Email: hsiangcl@andrew.cmu.edu,{songphd, shimada}@cmu.edu
Sandia National Laboratories, Albuquerque, NM
Email:wrquadr@sandia.gov

Summary
In this work, we present a pen-based user interface (UI) that makes manual geometry decomposition easier and helps reduce user time spent on geometry decomposition for hexahedral meshing. This paper presents the first attempt to apply a pen-based UI for geometry preparation for mesh generation. The proposed UI is more natural, intuitive, and easier to use than existing interfaces such as Window-Icon-Mouse-Pointer and commandline interfaces. The pen-based UI contains the following features: (1) drawing freeform strokes, (2) fitting and aligning strokes to CAD geometry automatically, (3) creating cutting surfaces, and (4) performing various tasks including webcutting through gestures. The proposed pen-based UI has been tested on a few models to demonstrate its e ectiveness in decomposition, defeaturing and controlling mesh orientation.

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