Java tutorial
/* * ------------------------------------------------------------------------ * * Copyright (C) 2003 - 2013 * University of Konstanz, Germany and * KNIME GmbH, Konstanz, Germany * Website: http://www.knime.org; Email: contact@knime.org * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License, Version 3, as * published by the Free Software Foundation. * * 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see <http://www.gnu.org/licenses>. * * Additional permission under GNU GPL version 3 section 7: * * KNIME interoperates with ECLIPSE solely via ECLIPSE's plug-in APIs. * Hence, KNIME and ECLIPSE are both independent programs and are not * derived from each other. Should, however, the interpretation of the * GNU GPL Version 3 ("License") under any applicable laws result in * KNIME and ECLIPSE being a combined program, KNIME GMBH herewith grants * you the additional permission to use and propagate KNIME together with * ECLIPSE with only the license terms in place for ECLIPSE applying to * ECLIPSE and the GNU GPL Version 3 applying for KNIME, provided the * license terms of ECLIPSE themselves allow for the respective use and * propagation of ECLIPSE together with KNIME. * * Additional permission relating to nodes for KNIME that extend the Node * Extension (and in particular that are based on subclasses of NodeModel, * NodeDialog, and NodeView) and that only interoperate with KNIME through * standard APIs ("Nodes"): * Nodes are deemed to be separate and independent programs and to not be * covered works. Notwithstanding anything to the contrary in the * License, the License does not apply to Nodes, you are not required to * license Nodes under the License, and you are granted a license to * prepare and propagate Nodes, in each case even if such Nodes are * propagated with or for interoperation with KNIME. The owner of a Node * may freely choose the license terms applicable to such Node, including * when such Node is propagated with or for interoperation with KNIME. * --------------------------------------------------------------------- * * */ package org.knime.knip.core.util; import net.imglib2.RandomAccess; import net.imglib2.RandomAccessibleInterval; import net.imglib2.type.numeric.RealType; import org.apache.commons.math3.linear.AbstractRealMatrix; import org.apache.commons.math3.linear.Array2DRowRealMatrix; import org.apache.commons.math3.linear.RealMatrix; /** * TODO Auto-generated * * @author <a href="mailto:dietzc85@googlemail.com">Christian Dietz</a> * @author <a href="mailto:horn_martin@gmx.de">Martin Horn</a> * @author <a href="mailto:michael.zinsmaier@googlemail.com">Michael Zinsmaier</a> */ public class ImgBasedRealMatrix<T extends RealType<T>, IN extends RandomAccessibleInterval<T>> extends AbstractRealMatrix { private final RandomAccess<T> m_rndAccess; private final IN m_in; public ImgBasedRealMatrix(final IN in) { if (in.numDimensions() != 2) { throw new IllegalArgumentException("In must have exact two dimensions to be handled as a matrix"); } m_in = in; m_rndAccess = in.randomAccess(); } @Override public RealMatrix createMatrix(final int rowDimension, final int columnDimension) { return new Array2DRowRealMatrix(rowDimension, columnDimension); } @Override public RealMatrix copy() { throw new UnsupportedOperationException("Unsupported"); } @Override public double getEntry(final int row, final int column) { m_rndAccess.setPosition(row, 1); m_rndAccess.setPosition(column, 0); return m_rndAccess.get().getRealDouble(); } @Override public void setEntry(final int row, final int column, final double value) { m_rndAccess.setPosition(row, 1); m_rndAccess.setPosition(column, 0); m_rndAccess.get().setReal(value); } @Override public int getRowDimension() { return (int) m_in.dimension(0); } @Override public int getColumnDimension() { return (int) m_in.dimension(1); } }