Package com.graphhopper.routing.weighting

Class BeelineWeightApproximator

java.lang.Object

com.graphhopper.routing.weighting.BeelineWeightApproximator

All Implemented Interfaces:

WeightApproximator

public class BeelineWeightApproximator
extends Object
implements WeightApproximator

Approximates the distance to the goal node by weighting the beeline distance according to the distance weighting

Author:

jansoe

Constructor Summary

Constructors

Constructor	Description
BeelineWeightApproximator(NodeAccess nodeAccess, Weighting weighting)

Method Summary

Modifier and Type	Method	Description
double	approximate(int fromNode)
double	getSlack()
WeightApproximator	reverse()	Makes a 'reverse' copy of itself to make it possible using the two objects independent e.g.
BeelineWeightApproximator	setDistanceCalc(DistanceCalc distanceCalc)
WeightApproximator	setEpsilon(double epsilon)
void	setTo(int toNode)
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

BeelineWeightApproximator

public BeelineWeightApproximator(NodeAccess nodeAccess,
 Weighting weighting)

Method Details

setTo

public void setTo(int toNode)

Specified by:

setTo in interface WeightApproximator

setEpsilon

public WeightApproximator setEpsilon(double epsilon)

reverse

public WeightApproximator reverse()

Description copied from interface: WeightApproximator

Makes a 'reverse' copy of itself to make it possible using the two objects independent e.g. on different threads. Do not copy state depending on the current approximate calls. 'reverse' means the WeightApproximator should handle approximate calls towards the 'from' instead towards the 'to'.

Specified by:

reverse in interface WeightApproximator

getSlack

public double getSlack()

Specified by:

getSlack in interface WeightApproximator

approximate

public double approximate(int fromNode)

Specified by:

approximate in interface WeightApproximator

Returns:

minimal weight of the specified currentNode to the 'to' node

setDistanceCalc

public BeelineWeightApproximator setDistanceCalc(DistanceCalc distanceCalc)

toString

public String toString()

Overrides:

toString in class Object