001 /* 002 * Copyright (C) 2008-2010 by Holger Arndt 003 * 004 * This file is part of the Universal Java Matrix Package (UJMP). 005 * See the NOTICE file distributed with this work for additional 006 * information regarding copyright ownership and licensing. 007 * 008 * UJMP is free software; you can redistribute it and/or modify 009 * it under the terms of the GNU Lesser General Public License as 010 * published by the Free Software Foundation; either version 2 011 * of the License, or (at your option) any later version. 012 * 013 * UJMP is distributed in the hope that it will be useful, 014 * but WITHOUT ANY WARRANTY; without even the implied warranty of 015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 016 * GNU Lesser General Public License for more details. 017 * 018 * You should have received a copy of the GNU Lesser General Public 019 * License along with UJMP; if not, write to the 020 * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, 021 * Boston, MA 02110-1301 USA 022 */ 023 024 package org.ujmp.core.objectmatrix.calculation; 025 026 import org.ujmp.core.Coordinates; 027 import org.ujmp.core.Matrix; 028 import org.ujmp.core.exceptions.MatrixException; 029 030 public class Flipdim extends AbstractObjectCalculation { 031 private static final long serialVersionUID = -4669640817211533725L; 032 033 public Flipdim(int dimension, Matrix m) { 034 super(dimension, m); 035 } 036 037 038 public Object getObject(long... coordinates) throws MatrixException { 039 coordinates = Coordinates.copyOf(coordinates); 040 long newValue = getSize()[getDimension()] - coordinates[getDimension()] - 1; 041 coordinates[getDimension()] = newValue; 042 return getSource().getAsObject(coordinates); 043 } 044 045 public final Matrix calcOrig() throws MatrixException { 046 long size = getSize()[getDimension()]; 047 long max = size / 2; 048 Matrix m = getSource(); 049 for (long i = 0; i < max; i++) { 050 m.swap(Ret.ORIG, getDimension(), i, size - i - 1); 051 } 052 return getSource(); 053 } 054 }