Hello everyone,
I modified bpp.mod to pack items in predefined number of bins of unlimited
capacity so that weight is (approximately) evenly distributed between bins. In
addition to weight, each item has an "order" or "position". Is there a way to
write an additional model constraint so that items are preferably packed in
compact order, e.g. items with sequential positions should go to the the same
container? For example, for this solution:
Bin 1: total weight 110
item 1 (40)
item 4 (70) <--
Bin 2: total weight 90
item 5 (50)
item 6 (40)
Bin 3: total weight 130
item 2 (60) -->
item 3 (30)
item 7 (15)
item 8 (25)
is there a way to add such constraint so item 2 would preferably be packed to
bin 1?
Thanks,
Dmitri
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