/*---------------- FILE HEADER ------------------------------------------
This file is part of deegree.
Copyright (C) 2001-2006 by:
EXSE, Department of Geography, University of Bonn
http://www.giub.uni-bonn.de/deegree/
lat/lon GmbH
http://www.lat-lon.de
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Contact:
Andreas Poth
lat/lon GmbH
Aennchenstr. 19
53177 Bonn
Germany
E-Mail: poth@lat-lon.de
Prof. Dr. Klaus Greve
Department of Geography
University of Bonn
Meckenheimer Allee 166
53115 Bonn
Germany
E-Mail: greve@giub.uni-bonn.de
---------------------------------------------------------------------------*/
package org.deegree.processing.raster.cluster;
public class SimpleDistanceComparator implements ClusterComparator {
private double[] distances = null;
/**
*
* @param distances
*/
public SimpleDistanceComparator( double[] distances ) {
this.distances = distances;
}
/**
* returns true if the passed cell matches conditions for being
* added to a cluster
*
* @param cell
* @return
* @throws ClusterException
*/
public boolean evaluate( ClusterNode cluster, double[] cell ) throws ClusterException {
double[] mean = cluster.getMean();
if ( mean.length != cell.length ) {
throw new ClusterException( "passed cell and cluster has different dimensions: " + cell.length + " " + mean.length );
}
for ( int i = 0; i < mean.length; i++ ) {
if ( Math.abs( mean[i] - cell[i] ) > distances[i] ) {
return false;
}
}
return true;
}
}
/* ********************************************************************
Changes to this class. What the people have been up to:
$Log: SimpleDistanceComparator.java,v $
Revision 1.1 2006/07/20 06:42:08 poth
*** empty log message ***
********************************************************************** */