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Questions tagged [graphhopper]

GraphHopper is a fast and Open Source route planner library and server written in Java.

GraphHopper is a fast and Open Source road routing engine written in Java. Running in desktop, mobile and server environments. It is customizable but provides pedestrian, bicycle and car routing per default.

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How can i sync graphooper or maps.me map data (mwm or .map file and offline routing data) with server and device

I want to edit map data from server , for example i want to close a street from server and offline routing will update and users dont route from closed street, after a time street will be open from server. how can i do this?
TohidNajafi
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Hard score calculation in vehicle routing

Currently using OptaPlanner for calculating score in a CVRP problem. if (demand > capacity) hardScore -= (demand - capacity); If there is a heterogeneous fleet, how can I calculate a hard score? I want to use a vehicle with small capacity if…
AMIT KUMAR BHARTI
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To get an optimizing solution for VRP using Graphhopper/jsprit

While solving Vehicle Routing problem using Graphhopper/jsprit, For example , we get the solution as follows Pickup1 - job1 Pickup2 - job2 Pickup3 - job3 Delivery1 - job1 Delivery2 - job2 Pickup4 - job4 So the problem i have with this solution…
Denzil Martin
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how to use road speed per request in graphhopper routing

As per the graphhopper 0.9 release, it says A new graph change API to change road speed and access properties, #845. Can be applied before preprocessing or per-request. how do i use it, can someone point me to the documentation with example ? thanks…
DJM
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how to enable hybrid mode in graphhopper for traffic data

how to enable hybrid mode for graphhopper 0.9 version. in the config file, what all we need to enable/disable/change my intention is to use traffic data using the link graphhopper-traffic-data-integration i am not able make it work, when i feed the…
DJM
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Custom VRP datasets using graph hopper

I am looking for a java code or library to generate the custom VRP datasets with road distances using graph hopper. Could you please share the details.
Kishore Prabhakar
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Optaplanner/graphhopper: how to solve VRP minimax optimization?

I have a route planning problem that consists of N vehicles and > 2N waypoints. I want to optimize their route such that the maximum time/cost of all vehicles is minimized. The only options in JVM are either optaplanner or graphhopper. This problem…
tribbloid
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Detect off-route with graphhopper offline navigation

I'm developing an app with navigation system using graphhopper offline. I have a gpx route displayed correctly with map-matching and the goal is the user needs to follow this route. If the user needs to take other way for some circumstances the app…
ariel
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How to include in GHResponse all nodes from a straight line

When requesting a route between to points, the container GHResponse doesn't include all the points in the way, i.e, if the route is a line some points are omitted. How can I retrieve all the points/nodes that are in the line?
nuno407
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How to resolve TransformException: java.util.zip.ZipException: duplicate entry :com/vividsolutions/jts/algorithm/Angle.class?

Everything was working fine , I added a button in my MainActivity and I had this error : Error:Execution failed for task ':app:transformClassesWithJarMergingForDebug'. com.android.build.api.transform.TransformException: java.util.zip.ZipException:…
Amina T
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Can Graphhopper Matrix API be used offline? (Embedded mode)

I'd like to use the Graphhopper Matrix API offline similar how I can use the Graphopper Directions API offline. Is this possible? Or is the Matrix API only accessible through HTTP request? Thanks
Eugene Shvartsman
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Modify or create different ployline for graph-hopper

Good day i am rather new to osm navigation. I like the graphhopper library however i wish to modify the route as the user traverses with a winking indicator in real time. How can be approach.
Remario
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Graphhopper not working in release apk.

I have developed an android application using the graphhopper routing library. The library works fine in debug mode or in app-debug.apk but when I create a release apk of the app the library wont work. It is giving me…
Yogesh
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Graphhopper: ClassCastException when calculating path with CH Astar/Dikstra Bi

Using only WGS84 coordinates I can write the graph and index to disk. In another java project I read graph and index from disk. This also works fine with the following code. FlagEncoder encoder = new CarFlagEncoder(); EncodingManager em = new…
Andreas
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Graphhopper Dijkstra One-To-Many Memory Error

No matter the size of the graph and the server I use, any time I attempt to route by the dijkstra_one_to_many algorithm, I overflow my heap. Test environment is a m3.2xlarge with 30gb of RAM and 2x80gb SSD drives. java.lang.OutOfMemoryError: Java…
Chadderall
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