org.aksw.limes.core.measures.measure.pointsets.hausdorff

Class CentroidIndex

java.lang.Object

org.aksw.limes.core.measures.mapper.pointsets.PolygonIndex

org.aksw.limes.core.measures.measure.pointsets.hausdorff.CentroidIndex

public class CentroidIndex
extends PolygonIndex

Adds the distance from the centroids, which are in the middle of the longest axis. Also stores the radius of the smallest circle which contains the polygon entirely

Author:

Axel-C. Ngonga Ngomo (ngonga@informatik.uni-leipzig.de)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	CentroidIndex.Circle

Field Summary

Fields

Modifier and Type	Field and Description
Map<String,CentroidIndex.Circle>	centroids
static boolean	USE_GREAT_ELLIPTIC_DISTANCE

Fields inherited from class org.aksw.limes.core.measures.mapper.pointsets.PolygonIndex

computations, distanceIndex, polygonIndex

Constructor Summary

Constructors

Constructor and Description
CentroidIndex()

Method Summary

Modifier and Type	Method and Description
Point	average(Point source, Point target)
double	distance(Point x, Point y)
void	index(Polygon p) Indexes the distances between the points in a given polygon and adds polygon to list of indexes

Methods inherited from class org.aksw.limes.core.measures.mapper.pointsets.PolygonIndex

getDistance, index, toString

Methods inherited from class java.lang.Object

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

Field Detail

USE_GREAT_ELLIPTIC_DISTANCE

public static boolean USE_GREAT_ELLIPTIC_DISTANCE

centroids

public Map<String,CentroidIndex.Circle> centroids

Constructor Detail

CentroidIndex

public CentroidIndex()

Method Detail

distance

public double distance(Point x,
                       Point y)

Parameters:

x - Point x

y - Point y

Returns:

Distance between x and y

index

public void index(Polygon p)

Description copied from class: PolygonIndex

Indexes the distances between the points in a given polygon and adds polygon to list of indexes

Overrides:

index in class PolygonIndex

Parameters:

p - Input polygon

average

public Point average(Point source,
                     Point target)