Title page for ETD etd-11102009-020052
|Type of Document
||Auradkar, Rajendra V.
||A complete geometric and topologic file structure
||Master of Science
||Industrial and Systems Engineering
|Eyada, Osama K.
|Deisenroth, Michael P.
|Date of Defense
Automation of the process planning function is necessary for the effective linking
of Computer-Aided Design (CAD) and Computer-Aided Manufacturing (CAM). Before
automated process planning is performed, primitive geometric data from CAD databases
needs to be converted to higher-level feature information required by the CAM systems.
Many feature recognition algorithms have been developed to extract geometric features
from different CAD representation schemes. However, the algorithms are CAD modeler
dependent. This research addresses the problem of developing a standardized file format,
Complete Geometric and Topological File Structure (CGTS), for feature recognition
purposes. Algorithms for conversion of 3-D wire-frame data to CGTS format have been
developed, using C++, and the process of feature recognition demonstrated using the
CGTS file format.
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