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I am solving a scheduling problem in python using docplex where I am assigning start/end to workorder intervals. I also have a cumul function for stock that the workorders produce/consume. I am using step_at_end method to add produced quantity to stock cumul function at the end of the workorder interval variables, but I would like the material to be available after some delay because it takes some time for the material to be ready to use.

for wo in workorder_list:
    for quantity, material_id in wo['output']:
        stock[material_id] += model.step_at_end(workorders[wo['id']], quantity)

What would be the best way to shift the end for x time?

RMat
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1 Answers1

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You could use new intervals for workorders after a given delay and use

docplex.cp.modeler.start_at_end(a, b, delay=None)

and then use

step_at_start

with those intervals

Alex Fleischer
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