com.graphhopper.routing.lm

Class PrepareLandmarks

java.lang.Object

com.graphhopper.routing.util.AbstractAlgoPreparation

com.graphhopper.routing.lm.PrepareLandmarks

public class PrepareLandmarks
extends AbstractAlgoPreparation

This class does the preprocessing for the ALT algorithm (A* , landmark, triangle inequality).

http://www.siam.org/meetings/alenex05/papers/03agoldberg.pdf

Author:

Peter Karich

Constructor Summary

Constructors

Constructor and Description
PrepareLandmarks(Directory dir, GraphHopperStorage graph, Weighting weighting, int landmarks, int activeLandmarks)

Method Summary

Modifier and Type	Method and Description
void	doWork()
RoutingAlgorithm	getDecoratedAlgorithm(Graph qGraph, RoutingAlgorithm algo, AlgorithmOptions opts)
int	getSubnetworksWithLandmarks()
Weighting	getWeighting()
boolean	loadExisting()
PrepareLandmarks	setLandmarkSuggestions(List<LandmarkSuggestion> landmarkSuggestions)
void	setLMSelectionWeighting(Weighting w)
PrepareLandmarks	setLogDetails(boolean logDetails)
PrepareLandmarks	setMaximumWeight(double maximumWeight)
void	setMinimumNodes(int nodes)
PrepareLandmarks	setSpatialRuleLookup(SpatialRuleLookup ruleLookup)

Methods inherited from class com.graphhopper.routing.util.AbstractAlgoPreparation

isPrepared

Methods inherited from class java.lang.Object

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

Constructor Detail

PrepareLandmarks

public PrepareLandmarks(Directory dir,
                        GraphHopperStorage graph,
                        Weighting weighting,
                        int landmarks,
                        int activeLandmarks)

Method Detail

setLandmarkSuggestions

public PrepareLandmarks setLandmarkSuggestions(List<LandmarkSuggestion> landmarkSuggestions)

See Also:

LandmarkStorage.setLandmarkSuggestions(List)

setSpatialRuleLookup

public PrepareLandmarks setSpatialRuleLookup(SpatialRuleLookup ruleLookup)

See Also:

LandmarkStorage.setSpatialRuleLookup(SpatialRuleLookup)

setMaximumWeight

public PrepareLandmarks setMaximumWeight(double maximumWeight)

See Also:

LandmarkStorage.setMaximumWeight(double)

setLMSelectionWeighting

public void setLMSelectionWeighting(Weighting w)

See Also:

LandmarkStorage.setLMSelectionWeighting(Weighting)

setMinimumNodes

public void setMinimumNodes(int nodes)

See Also:

LandmarkStorage.setMinimumNodes(int)

setLogDetails

public PrepareLandmarks setLogDetails(boolean logDetails)

getSubnetworksWithLandmarks

public int getSubnetworksWithLandmarks()

getWeighting

public Weighting getWeighting()

loadExisting

public boolean loadExisting()

doWork

public void doWork()

Overrides:

doWork in class AbstractAlgoPreparation

getDecoratedAlgorithm

public RoutingAlgorithm getDecoratedAlgorithm(Graph qGraph,
                                              RoutingAlgorithm algo,
                                              AlgorithmOptions opts)