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package de.lmu.ifi.dbs.elki.data.spatial;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2013
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
import java.util.Comparator;
/**
* Comparator for sorting spatial objects by the maximum value in a single
* dimension.
*
* @author Erich Schubert
*
* @apiviz.uses SpatialComparable
*/
public class SpatialSingleMaxComparator implements Comparator<SpatialComparable> {
/**
* Current dimension.
*/
int dim;
/**
* Constructor.
*
* @param dim Dimension to sort by.
*/
public SpatialSingleMaxComparator(int dim) {
super();
this.dim = dim;
}
/**
* Set the dimension to sort by.
*
* @param dim Dimension
*/
public void setDimension(int dim) {
this.dim = dim;
}
@Override
public int compare(SpatialComparable o1, SpatialComparable o2) {
return Double.compare(o1.getMax(dim), o2.getMax(dim));
}
}
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