jsprit | java based , open source toolkit
kandi X-RAY | jsprit Summary
kandi X-RAY | jsprit Summary
jsprit is a java based, open source toolkit for solving rich vehicle routing problems
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Top functions reviewed by kandi - BETA
- Create the algorithm from a problem
- Builds an InsertionStrategy
- Builds the given algorithm
- Add the core constraints to the vehicle
- This method calculates the insertion of a job
- Determine whether the conditions are satisfied
- Check the route constraints
- Finish the itinerary
- This method will be called once every vehicle has finished
- This method is called when the vehicle activity is satisfied
- Insert jobs into the vehicle route
- This method initialises the state manager
- This method is used to insert jobs
- Inserts a set of jobs
- Method to insert jobs
- This method is called when a VehicleRoutingProblem has been re - assigned job
- Invoked when the algorithm starts
- This method calculates the insertion data
- This method calculates the insertion cost of a job
- This method calculates the insertion data for a job
- Determines if the vehicle activity is satisfied
- This method is used to run a job
- This method returns the transport cost of two ACTs
- This method is used to insert a job
- This method is called when a new activity is satisfied
- Builds the insert strategy
jsprit Key Features
jsprit Examples and Code Snippets
Community Discussions
Trending Discussions on jsprit
QUESTION
I'm trying to use GraphHopper core to create a indoor navigation app. I already create a .osm file of the building(with 2 floors) containing all the possible routes inside the building.
The problem that I'm facing now is that there is no way to filter points by floors, i.e, when I make a call to the web API /route the points only have lat/lon and no floor or something similar to distinguish between to points with the same lat/lon.
How can I solve this problem? Anyone can give me some hints to accomplish this task?
Side question: How can integrate GraphHopper jsprit with GraphHopper core? Where can I find some documentation about that?
...ANSWER
Answered 2017-Mar-10 at 21:26This is a missing feature. See this issue https://github.com/graphhopper/graphhopper/issues/646
You could attach a z-component for every edge (or node) and use an EdgeFilter to pick the correct floor.
QUESTION
I am new to Jsprit. I tried to use multiple size of dimension in my shipment list. For example, some shipments I added size of dimension with WHEELCHAIRSPACE_INDEX and some shipments I use PASSENGERSEATS_INDEX in my createJob(). However the output seem like wrong.
...ANSWER
Answered 2019-Jan-09 at 10:22When you built your cost matrix, you only specified travel time, not distances.
By default, the cost of an unassigned job depends on the the (maximum) distances between the pickup and delivery locations. Since distances aren't set, there is no penalty for unassigned jobs.
An easy solution would be to add some reasonable distance metric when you build the cost matrix:
QUESTION
I tried to use Jsprit to solve pick up and delivery problem via cost matrix. However, solution is not working. Anyone know which part is going wrong?
...ANSWER
Answered 2018-Dec-28 at 00:49I found the solution. I have to set cost per transport time for each vehicle type.
QUESTION
Is there a way to obtain the output/store results in variables other than outputting solutions to an xml file using vrpxmlwriter?
I tried to get the results with dom parser, xpath and family and can proudly say that I made a complete mess!! Common Jsprit team you've made this beautiful piece of art, why couldn't you provide us with functions like bestSolution.getAllVehicles()
??
If i'm wrong please correct me.
...ANSWER
Answered 2018-Mar-04 at 10:26Judging only from the source code, shouldn't you be able to easily extract all the vehicles from the bestSolution
instance?
Assuming bestSolution
is of type VehicleRoutingProblemSolution
, I'd expect something like this to work:
QUESTION
I just simply want to use jsprit in intellij-idea but I can't found any tutorials about jsprit.
...ANSWER
Answered 2017-Aug-04 at 10:48Jsprit using maven so it is very simple to use. Just download source code and open pom.xml file in Intellij-idea. You can have access all the source code and examples.
QUESTION
I am trying to get the optimized route by using Jsprit.I have three jobs each has its own time window.Now it's like this
...ANSWER
Answered 2017-Apr-24 at 03:05Because using two vehicles returns smaller total cost (10.28538328578604) than using one vehicle (10.537319187990756) in your case.
If you would like to force it to use only one vehicle, you can either set fleet size to FINITE or set a fixed cost to the vehicle type.
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