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- Newsgroups: sci.math
- Path: sparky!uunet!cs.utexas.edu!sdd.hp.com!ux1.cso.uiuc.edu!m.cs.uiuc.edu!gillies
- From: gillies@m.cs.uiuc.edu (Don Gillies)
- Subject: Re: Minimizing waste when cutting fabric.
- Message-ID: <1992Sep6.213343.15380@m.cs.uiuc.edu>
- Keywords: Waste; Fabric
- Organization: University of Illinois, Dept. of Comp. Sci., Urbana, IL
- References: <8832@amsaa-cleo.brl.mil>
- Date: Sun, 6 Sep 1992 21:33:43 GMT
- Lines: 59
-
- The problem you are describing is known as the "2-dimensional
- bin-packing problem," or "stock cutting problem". The basic
- assumption is that the rectangles cannot be rotated (i.e. perhaps
- because there is a pattern on the fabric). Several algorithms were
- developed for it in the late 1970's and early 1980's, vis:
-
- %Z 25
- %X A
- %A Daniel D. Sleator
- %T A 2.5 Times Optimal Algorithm for Packing in Two Dimensions
- %J Information Processing Letters
- %D 12 February 1980
- %V 10 1
- %P 37 40
- %K bin packing
- %K best
- %K 2-d
-
- %Z 39
- %X A
- %A E. G. Coffman
- %A M. R. Garey
- %A D. S. Johnson
- %A R. E. Tarjan
- %T Performance Bounds for Level-Oriented Two-Dimensional Packing Algorithms
- %J SIAM Journal on Computing
- %D 1980
- %V 9
- %P 808 826
- %K 2-d
- %K bin packing
-
- %Z 141
- %X I
- %A E. G. Coffman, Jr.
- %A M. R. Garey
- %A D. S. Johnson
- %T Approximation Algorithms for Bin-Packing - An Updated Survey
- %B Algorithm Design for Computer System Design
- %E G. Ausiello, M. Luccertini, P. Serafini
- %I Springer Verlag
- %C Berlin
- %P 49 106
- %D 1984
- %K survey
- %K bin packing
-
- There is also an algorithm that is asymptotically 5/4 + C times
- optimal (with C very large, like 11), which was published around that
- time in either SIAM J. on Computing or CACM, but I don't have the
- reference handy.
-
- Don Gillies - gillies@cs.uiuc.edu - University of Illinois at Urbana-Champaign
-
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