Solid Model Databases: Techniques and Empirical Results

[+] Author and Article Information
David McWherter, Mitchell Peabody, William C. Regli, Ali Shokoufandeh

Geometric and Intelligent Computing Laboratory, Department of Mathematics and Computer Science, Drexel University, 3141 Chestnut Street, Philadelphia, PA 19104 e-mail: http://gicl.mcs.drexel.edu/

J. Comput. Inf. Sci. Eng 1(4), 300-310 (Oct 01, 2001) (11 pages) doi:10.1115/1.1430233 History: Received August 01, 2001; Revised October 01, 2001
Copyright © 2001 by ASME
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An overall view of our approach: transformation from solid model to a model signature to be used for database clustering and indexing
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Two examples of the models and their model signature graphs: (a) a simple machined bracket: spinner3; (b) MSG for spinner3; (c) a motor crankcase; (d) MSG for the crankcase
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Laplacian matrix and eigenvalue spectrum computed for the spinner3 model
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Similarity comparison between spinner3, spinner4, and part01
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Similarity comparison between Team Part-1, Team Part-2, and 3tmount
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An example of a pair of models from the National Design Repository with extremely small distance: EigenDistance=8.6, ITV−Distance=183.5; (a) STAMP; (b) x2part
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An example of a pairs of models from the National Design Repository with extremely large distance: EigenDistance=89.2, ITV−Distance=5988.2; (a) 282 7056; (b) SWASH
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A plot of the time (sec) vs. the number of models in the M-Tree
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A query part and returned models for a range query on the EigenDistance index on the MSGs; (a) Range Query 1; (b) Range Query 2
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Additional clustering examples: (a) two members of cluster randomly selected cluster after performing a 1000-cluster k-clustering on the Design Repository; (b) two members of the same cluster, after performing a 3000-cluster k-clustering on the Design Repository; (c) members of the cluster containing Torpedo Motor model, after performing a 20000-cluster k-clustering on the Design Repository




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