I am new to vrpl and jsprit (https://github.com/graphhopper/jsprit) world.
I have a requirement to implement route planner for laundry service provider.
First I'll explain the requirement.
We will get requests from customers for pickup clothes and then get them washed and deliver back to them.
Here few customers have specific requirement to pickup and deliver during specific timings only and few doesn't mind with any time.
And also some times few people will give items at store on their own they just want home delivery.
Few people will only give items at home for pickup and they will collect the delivery on their own.
After bringing the items for laundry, it needs 2 hours for washing and drying.
And another constraint is during initial pickup van can take only one bag from home and during delivery van can take three bags mainly due to unwashed items should not be clubbed.
I am very much impressed with Jsprit features.
So I'm using jsprit for above requirement.
I've looked at https://discuss.graphhopper.com/t/how-to-use-jsprit-to-solve-vrp-whose-shipment-has-some-available-deliver-locations/404/4
And I have modified MultipleProductsWithLoadConstraintExample considering Bananas as initial pickup from home and Apples as washed clothes pickup for dropback.
I am getting below things properly.
1. Pickup and Delivery load constraints are working fine
But I am facing below problems.
1. Without items pickup, dropback job is kicking in
2. Few items are left as uncompleted jobs
3. Can we specify relation between jobs?
4. Can we specify job itself as constraint? like do one job, after particular job completion only. (Dropback only after pickup)
I am hoping it can be acheived with constraints, but I am unable to do it.