de.lmu.ifi.dbs.elki.distance.distancefunction.geo
Class DimensionSelectingLatLngDistanceFunction

java.lang.Object
  de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractPrimitiveDistanceFunction<NumberVector<?,?>,DoubleDistance>
      de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractVectorDoubleDistanceFunction
          de.lmu.ifi.dbs.elki.distance.distancefunction.geo.DimensionSelectingLatLngDistanceFunction

All Implemented Interfaces:

DistanceFunction<NumberVector<?,?>,DoubleDistance>, PrimitiveDistanceFunction<NumberVector<?,?>,DoubleDistance>, PrimitiveDoubleDistanceFunction<NumberVector<?,?>>, InspectionUtilFrequentlyScanned, Parameterizable

public class DimensionSelectingLatLngDistanceFunction
extends AbstractVectorDoubleDistanceFunction

Distance function for 2D vectors in Latitude, Longitude form.

Nested Class Summary

static class

DimensionSelectingLatLngDistanceFunction.Parameterizer Parameterization class.

Field Summary

(package private) int	dimlat Latitude dimension
(package private) int	dimlng Longitude dimension

Constructor Summary

DimensionSelectingLatLngDistanceFunction(int dimlat, int dimlng)
Constructor.

Method Summary

double	doubleDistance(NumberVector<?,?> o1, NumberVector<?,?> o2) Computes the distance between two given Objects according to this distance function.
SimpleTypeInformation<? super NumberVector<?,?>>	getInputTypeRestriction() Get the input data type of the function.

Methods inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractVectorDoubleDistanceFunction

distance, getDistanceFactory

Methods inherited from class de.lmu.ifi.dbs.elki.distance.distancefunction.AbstractPrimitiveDistanceFunction

instantiate, isMetric, isSymmetric

Methods inherited from class java.lang.Object

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

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

instantiate, isMetric, isSymmetric

Field Detail

dimlat

final int dimlat

Latitude dimension

dimlng

final int dimlng

Longitude dimension

Constructor Detail

DimensionSelectingLatLngDistanceFunction

public DimensionSelectingLatLngDistanceFunction(int dimlat,
                                                int dimlng)

Constructor.

Parameters:

dimlat - Dimension storing the latitude

dimlng - Dimension storing the longitude

Method Detail

doubleDistance

public double doubleDistance(NumberVector<?,?> o1,
                             NumberVector<?,?> o2)

Description copied from interface: PrimitiveDoubleDistanceFunction

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

Parameters:

o1 - first Object

o2 - second Object

Returns:

the distance between two given Objects according to this distance function

getInputTypeRestriction

public SimpleTypeInformation<? super NumberVector<?,?>> getInputTypeRestriction()

Description copied from interface: DistanceFunction

Get the input data type of the function.

Specified by:

getInputTypeRestriction in interface DistanceFunction<NumberVector<?,?>,DoubleDistance>

Specified by:

getInputTypeRestriction in interface PrimitiveDistanceFunction<NumberVector<?,?>,DoubleDistance>

Overrides:

getInputTypeRestriction in class AbstractVectorDoubleDistanceFunction

Returns:

Type restriction