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Nesting is primarily composed of two processes: one is the determination of permutation; another is the placement for the pieces unto the sheet. These two processes determine the quality for nesting. If the permutation is right and placement also can satisfy the requirements, then we can locate the proper solution or the optimum one; but most of the time, there is no way to know the correct permutation...
The objective of two-dimensional optimal nesting problem is to place the same or different pieces of the fixed quantity on the sheet in this paper. What we want to do is increase the rate of utility and decrease the waste of panel. Generally, determine the quality of the nesting results; it can briefly be divided into two factors: placement algorithm and permutation. Placement algorithm means to decide...
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