com.vividsolutions.jts.algorithm.match
Class HausdorffSimilarityMeasure

java.lang.Object
  com.vividsolutions.jts.algorithm.match.HausdorffSimilarityMeasure

All Implemented Interfaces:

SimilarityMeasure

public class HausdorffSimilarityMeasure
extends java.lang.Object
implements SimilarityMeasure

Measures the degree of similarity between two Geometrys using the Hausdorff distance metric. The measure is normalized to lie in the range [0, 1]. Higher measures indicate a great degree of similarity.

The measure is computed by computing the Hausdorff distance between the input geometries, and then normalizing this by dividing it by the diagonal distance across the envelope of the combined geometries.

Author:

mbdavis

Constructor Summary

HausdorffSimilarityMeasure()

Method Summary

static double	diagonalSize(Envelope env)
double	measure(Geometry g1, Geometry g2)

Methods inherited from class java.lang.Object

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

Constructor Detail

HausdorffSimilarityMeasure

public HausdorffSimilarityMeasure()

Method Detail

measure

public double measure(Geometry g1,
                      Geometry g2)

Specified by:

measure in interface SimilarityMeasure

diagonalSize

public static double diagonalSize(Envelope env)