Package com.graphhopper.routing

Class AlternativeRouteCH

java.lang.Object

com.graphhopper.routing.AbstractBidirAlgo

com.graphhopper.routing.AbstractBidirCHAlgo

com.graphhopper.routing.DijkstraBidirectionCHNoSOD

com.graphhopper.routing.AlternativeRouteCH

All Implemented Interfaces:

EdgeToEdgeRoutingAlgorithm, RoutingAlgorithm

public class AlternativeRouteCH
extends DijkstraBidirectionCHNoSOD

Minimum number-of-moving-parts implementation of alternative route search with contraction hierarchies.

"Alternative Routes in Road Networks" (Abraham et al.)

Author:

michaz

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	AlternativeRouteCH.AlternativeInfo
static class	AlternativeRouteCH.PotentialAlternativeInfo

Field Summary

Fields inherited from class com.graphhopper.routing.AbstractBidirCHAlgo

graph, inEdgeExplorer, levelEdgeFilter, nodeAccess, outEdgeExplorer

Fields inherited from class com.graphhopper.routing.AbstractBidirAlgo

bestBwdEntry, bestFwdEntry, bestWeight, bestWeightMapFrom, bestWeightMapOther, bestWeightMapTo, currFrom, currTo, finishedFrom, finishedTo, from, fromOutEdge, maxVisitedNodes, timeoutMillis, to, toInEdge, traversalMode, updateBestPath

Constructor Summary

Constructors

Constructor	Description
AlternativeRouteCH(RoutingCHGraph graph, PMap hints)

Method Summary

Modifier and Type	Method	Description
List<Path>	calcPaths(int from, int to)	Calculates multiple possibilities for a path.
boolean	finished()
int	getVisitedNodes()	Returns the visited nodes after searching.

Methods inherited from class com.graphhopper.routing.DijkstraBidirectionCHNoSOD

createEntry, createStartEntry, getName, getParent

Methods inherited from class com.graphhopper.routing.AbstractBidirCHAlgo

accept, calcWeight, calcWeight, createEmptyPath, extractPath, fillEdgesFromUsingFilter, fillEdgesToUsingFilter, getInEdgeWeight, initCollections, postInitFrom, postInitTo, setPathExtractorSupplier, toString, updateEntry

Methods inherited from class com.graphhopper.routing.AbstractBidirAlgo

bwdSearchCanBeStopped, calcPath, calcPath, checkAlreadyRun, fromEntryCanBeSkipped, fwdSearchCanBeStopped, getCurrentFromWeight, getCurrentToWeight, getIncomingEdge, initFrom, initTo, isMaxVisitedNodesExceeded, isTimeoutExceeded, postInit, runAlgo, setMaxVisitedNodes, setTimeoutMillis, setUpdateBestPath, setupFinishTime, toEntryCanBeSkipped, updateBestPath

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface com.graphhopper.routing.EdgeToEdgeRoutingAlgorithm

calcPath

Methods inherited from interface com.graphhopper.routing.RoutingAlgorithm

calcPath, setMaxVisitedNodes, setTimeoutMillis

Constructor Details

AlternativeRouteCH

public AlternativeRouteCH(RoutingCHGraph graph,
 PMap hints)

Method Details

finished

public boolean finished()

Overrides:

finished in class AbstractBidirCHAlgo

getVisitedNodes

public int getVisitedNodes()

Description copied from interface: RoutingAlgorithm

Returns the visited nodes after searching. Useful for debugging.

Specified by:

getVisitedNodes in interface RoutingAlgorithm

Overrides:

getVisitedNodes in class AbstractBidirAlgo

calcPaths

public List<Path> calcPaths(int from,
 int to)

Description copied from interface: RoutingAlgorithm

Calculates multiple possibilities for a path.

Specified by:

calcPaths in interface RoutingAlgorithm

Overrides:

calcPaths in class AbstractBidirAlgo

See Also:

• RoutingAlgorithm.calcPath(int, int)