de.lmu.ifi.dbs.elki.distance.distancefunction
Interface SpatialPrimitiveDistanceFunction<V extends SpatialComparable,D extends Distance<D>>

Type Parameters:

V - Vector type

D - Distance type

All Superinterfaces:

DistanceFunction<V,D>, InspectionUtilFrequentlyScanned, Parameterizable, PrimitiveDistanceFunction<V,D>

All Known Subinterfaces:

SpatialPrimitiveDoubleDistanceFunction<V>

All Known Implementing Classes:

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

public interface SpatialPrimitiveDistanceFunction<V extends SpatialComparable,D extends Distance<D>>
extends PrimitiveDistanceFunction<V,D>

API for a spatial primitive distance function.

Method Summary

D	centerDistance(SpatialComparable mbr1, SpatialComparable mbr2) Computes the distance between the centroids of the two given MBRs according to this distance function.
<T extends V> SpatialDistanceQuery<T,D>	instantiate(Relation<T> relation) Instantiate with a database to get the actual distance query.
D	minDist(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.PrimitiveDistanceFunction

distance, getInputTypeRestriction

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

getDistanceFactory, isMetric, isSymmetric

Method Detail

minDist

D minDist(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

centerDistance

D centerDistance(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

instantiate

<T extends V> SpatialDistanceQuery<T,D> instantiate(Relation<T> relation)

Description copied from interface: DistanceFunction

Instantiate with a database to get the actual distance query.

Specified by:

instantiate in interface DistanceFunction<V extends SpatialComparable,D extends Distance<D>>

Parameters:

relation - The representation to use

Returns:

Actual distance query.