/*
* Copyright (C) 2008-2015 by Holger Arndt
*
* This file is part of the Universal Java Matrix Package (UJMP).
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership and licensing.
*
* UJMP 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
* of the License, or (at your option) any later version.
*
* UJMP 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 UJMP; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*/
package org.ujmp.core.doublematrix.calculation.general.misc;
import org.ujmp.core.Coordinates;
import org.ujmp.core.Matrix;
import org.ujmp.core.doublematrix.calculation.AbstractDoubleCalculation;
public class FadeOut extends AbstractDoubleCalculation {
private static final long serialVersionUID = -2366094848097068297L;
public FadeOut(int dimension, Matrix matrix) {
super(dimension, matrix);
}
public double getDouble(long... coordinates) {
double factor = 0.0;
switch (getDimension()) {
case Matrix.COLUMN:
factor = 1.0 - (double) coordinates[COLUMN]
/ (double) (getSource().getColumnCount() - 1);
break;
case Matrix.ROW:
factor = 1.0 - (double) coordinates[ROW] / (double) (getSource().getRowCount() - 1);
break;
default:
factor = 1.0 - (double) Coordinates.product(coordinates)
/ (double) (getSource().getRowCount() - 1);
break;
}
return getSource().getAsDouble(coordinates) * factor;
}
}