de.lmu.ifi.dbs.elki.distance.distancefunction

Interface SpatialPrimitiveDoubleDistanceFunction<V extends SpatialComparable>

Type Parameters:

V - Vector type

All Superinterfaces:

DistanceFunction<V,DoubleDistance>, InspectionUtilFrequentlyScanned, Parameterizable, PrimitiveDistanceFunction<V,DoubleDistance>, PrimitiveDoubleDistanceFunction<V>, SpatialPrimitiveDistanceFunction<V,DoubleDistance>

All Known Implementing Classes:

DimensionSelectingDistanceFunction, DimensionsSelectingEuclideanDistanceFunction, EuclideanDistanceFunction, HistogramIntersectionDistanceFunction, ManhattanDistanceFunction, MaximumDistanceFunction, MinimumDistanceFunction, SquaredEuclideanDistanceFunction

public interface SpatialPrimitiveDoubleDistanceFunction<V extends SpatialComparable>
extends SpatialPrimitiveDistanceFunction<V,DoubleDistance>, PrimitiveDoubleDistanceFunction<V>

Interface combining spatial primitive distance functions with primitive number distance functions. This allows for optimization in the most common types, while not sacrificing generality to support the others. In essence, you should use this interface only in specialized optimized codepaths.

Method Summary

Methods

Modifier and Type	Method and Description
double	doubleCenterDistance(SpatialComparable mbr1, SpatialComparable mbr2) Computes the distance between the centroids of the two given MBRs according to this distance function.
double	doubleMinDist(SpatialComparable mbr1, SpatialComparable mbr2) Computes the distance between the two given MBRs according to this distance function.

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.SpatialPrimitiveDistanceFunction

centerDistance, instantiate, minDist

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.PrimitiveDoubleDistanceFunction

doubleDistance

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.PrimitiveDistanceFunction

distance, getInputTypeRestriction

Methods inherited from interface de.lmu.ifi.dbs.elki.distance.distancefunction.DistanceFunction

getDistanceFactory, isMetric, isSymmetric

Method Detail

doubleMinDist

double doubleMinDist(SpatialComparable mbr1,
                   SpatialComparable mbr2)

Computes the distance between the two given MBRs according to this distance function.

Parameters:

mbr1 - the first MBR object

mbr2 - the second MBR object

Returns:

the distance between the two given MBRs according to this distance function

doubleCenterDistance

double doubleCenterDistance(SpatialComparable mbr1,
                          SpatialComparable mbr2)

Computes the distance between the centroids of the two given MBRs according to this distance function.

Parameters:

mbr1 - the first MBR object

mbr2 - the second MBR object

Returns:

the distance between the centroids of the two given MBRs according to this distance function