Option to force all vehicles to service locations
Nobody has claimed this yet.
Assessment
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Newbie friendliness
- 45/100
Research direction
Start by reading the linked fairness-constraint issue and locating the vehicle-routing setup in the bindings; the issue provides the proposed NextVar constraint. Check how an option is exposed, then verify with a routing example that every vehicle is required to service a location.
Written by the indexing model from the issue text.
Description
We should provide an option to force all vehicles on the road.
Probably goes hand in hand with the fairness constraint, see https://github.com/mapbox/node-or-tools/issues/1.
Implementation: remove the depot from the start's NextVar, so vehicles have to service locations:
model.CloseModel()
for (auto vehicle = 0; vehicle < numVehicles; ++vehicle) {
IntVar* const start = routing.NextVar(routing.Start(vehicle));
for (auto node = routing.Size(); node < routing.Size() + routing.vehicles(); ++node)
start->RemoveValue(node);
}
- Dominant language
- C++
- Stars
- 155
- Forks
- 47
- PR merge metrics
- No merged PRs in 30d
Contributor guide
First steps
- Read the whole issue, then the project's contributing guide.
- Comment on the issue to say you are picking it up — it saves two people doing the same work.
- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
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