de.thaw.comb.highway

Class HighwayAnalyser

java.lang.Object

de.thaw.comb.highway.HighwayAnalyser

All Implemented Interfaces:

Analyser

public final class HighwayAnalyser
extends Object
implements Analyser

This Client's Analyser. This implementation evaluates fragments on a purely geometric basis; OSM tags are not taken into account in any way.

Constructor Summary

Constructors

Constructor and Description
HighwayAnalyser(int evaluateTags)

Method Summary

Modifier and Type	Method and Description
int	compare(double value, double bestValue)
double	distance(Segment s1, Segment s2) The geometric distance between two segments (DISTANZ).
double	evaluateLeft(Segment part1, Segment part2)
double	evaluateRight(Segment part1, Segment part2)
boolean	shouldEvaluate(Segment part1, Segment part2)
double	worstResult()

Methods inherited from class java.lang.Object

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

Constructor Detail

HighwayAnalyser

public HighwayAnalyser(int evaluateTags)

Method Detail

shouldEvaluate

public boolean shouldEvaluate(Segment part1,
                              Segment part2)

Specified by:

shouldEvaluate in interface Analyser

distance

public double distance(Segment s1,
                       Segment s2)

The geometric distance between two segments (DISTANZ). How the distance is determined may depend upon the use case. For example, in one context the distance between two segments might be best defined as the distance of their mid points, whereas other contexts may require it to be defined as the average distance of their respective endpoints.

This implementation calculates the sum of the distance of the two start points and the two endpoints. If the segments are not aligned the same way, one of them is reversed for this calculation.

Specified by:

distance in interface Analyser

Returns:

an ordinal scaled value representing the distance between the two segments s1 and s2

Throws:

NullPointerException - if s1 or s2 are null

evaluateLeft

public double evaluateLeft(Segment part1,
                           Segment part2)

Specified by:

evaluateLeft in interface Analyser

evaluateRight

public double evaluateRight(Segment part1,
                            Segment part2)

Specified by:

evaluateRight in interface Analyser

compare

public int compare(double value,
                   double bestValue)

Specified by:

compare in interface Analyser

worstResult

public double worstResult()

Specified by:

worstResult in interface Analyser