Originally posted by: SystemAdmin

[anahana said:]

Hi,

I'm trying to solve a problem instance of the VRP using ILOG CP 1.3; I want to use the "gridNetwork" file to load a road network, but I'm not sure how I can modify this file to include the locations I have in my problem instance. I don't know how ILOG CP gives names to arcs.

Any thoughts?

Regards,
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Originally posted by: SystemAdmin

[Gwyneth said:]

Hello -

The arc names have to be unique integers.  Note that when you look at the csv file, you should ignore the first header field, so the first column is really the arc name, the second is the "from", the third is the "to", etc.

I hope this helps.
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Originally posted by: SystemAdmin

[anahana said:]

thanks for the reply, but this is not what I was looking for; assume I want to add a new visit; wouldn't I have to define an arc for it in the gridNetwork file? If so, how would I know what name to pick, should I just use and integer number that is not used anywhere else?
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Originally posted by: SystemAdmin

[Gwyneth said:]

yes, as I said, the requirement is that arc names should be unique integers, so you should simply choose an integer that has not been used before.
#CPOptimizer
#DecisionOptimization

Originally posted by: SystemAdmin

[anahana said:]

Great, thanks.
#CPOptimizer
#DecisionOptimization