de.lmu.ifi.dbs.elki.database.query.distance

Interface SpatialDistanceQuery<V extends SpatialComparable,D extends Distance<D>>

Type Parameters:

V - Vector type

D - Distance type

All Superinterfaces:

DatabaseQuery, DistanceQuery<V,D>

All Known Implementing Classes:

SpatialPrimitiveDistanceQuery

public interface SpatialDistanceQuery<V extends SpatialComparable,D extends Distance<D>>
extends DistanceQuery<V,D>

Query interface for spatial distance queries.

Field Summary

Fields inherited from interface de.lmu.ifi.dbs.elki.database.query.DatabaseQuery

HINT_BULK, HINT_EXACT, HINT_HEAVY_USE, HINT_NO_CACHE, HINT_OPTIMIZED_ONLY, HINT_SINGLE

Method Summary

Methods

Modifier and Type	Method and Description
D	centerDistance(SpatialComparable mbr1, SpatialComparable mbr2) Computes the distance between the centroids of the two given MBRs according to this distance function.
SpatialPrimitiveDistanceFunction<? super V,D>	getDistanceFunction() Get the inner distance function.
D	mbrDist(SpatialComparable mbr1, SpatialComparable mbr2) Computes the distance between the two given MBRs according to this distance function.
D	minDist(SpatialComparable mbr, DBID id) Computes the minimum distance between the given MBR and the FeatureVector object according to this distance function.
D	minDist(SpatialComparable mbr, V v) Computes the minimum distance between the given MBR and the FeatureVector object according to this distance function.

Methods inherited from interface de.lmu.ifi.dbs.elki.database.query.distance.DistanceQuery

distance, distance, distance, distance, getDistanceFactory, getRelation, infiniteDistance, nullDistance, undefinedDistance

Method Detail

minDist

D minDist(SpatialComparable mbr,
        V v)

Computes the minimum distance between the given MBR and the FeatureVector object according to this distance function.

Parameters:

mbr - the MBR object

v - the FeatureVector object

Returns:

the minimum distance between the given MBR and the FeatureVector object according to this distance function

minDist

D minDist(SpatialComparable mbr,
        DBID id)

Computes the minimum distance between the given MBR and the FeatureVector object according to this distance function.

Parameters:

mbr - the MBR object

id - the query object id

Returns:

the minimum distance between the given MBR and the FeatureVector object according to this distance function

mbrDist

D mbrDist(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

getDistanceFunction

SpatialPrimitiveDistanceFunction<? super V,D> getDistanceFunction()

Get the inner distance function.

Specified by:

getDistanceFunction in interface DistanceQuery<V extends SpatialComparable,D extends Distance<D>>

Returns:

Distance function