org.kalypso.kalypsomodel1d2d.ui.map.temsys.model.ModelTinExporter.java Source code

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Here is the source code for org.kalypso.kalypsomodel1d2d.ui.map.temsys.model.ModelTinExporter.java

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/*----------------    FILE HEADER KALYPSO ------------------------------------------
 *
 *  This file is part of kalypso.
 *  Copyright (C) 2004 by:
 *
 *  Technical University Hamburg-Harburg (TUHH)
 *  Institute of River and coastal engineering
 *  Denickestrae 22
 *  21073 Hamburg, Germany
 *  http://www.tuhh.de/wb
 *
 *  and
 *
 *  Bjoernsen Consulting Engineers (BCE)
 *  Maria Trost 3
 *  56070 Koblenz, Germany
 *  http://www.bjoernsen.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:
 *
 *  E-Mail:
 *  belger@bjoernsen.de
 *  schlienger@bjoernsen.de
 *  v.doemming@tuhh.de
 *
 *  ---------------------------------------------------------------------------*/
package org.kalypso.kalypsomodel1d2d.ui.map.temsys.model;

import java.io.File;
import java.io.FileOutputStream;
import java.io.OutputStream;
import java.lang.reflect.InvocationTargetException;
import java.math.BigDecimal;
import java.util.zip.GZIPOutputStream;

import org.apache.commons.io.IOUtils;
import org.eclipse.core.resources.IFile;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IProgressMonitor;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.NullProgressMonitor;
import org.eclipse.core.runtime.Status;
import org.kalypso.contribs.eclipse.jface.operation.ICoreRunnableWithProgress;
import org.kalypso.contribs.eclipse.ui.progress.ProgressUtilities;
import org.kalypso.kalypsomodel1d2d.conv.results.TinResultWriter;
import org.kalypso.kalypsomodel1d2d.schema.binding.discr.IFE1D2DElement;
import org.kalypso.kalypsomodel1d2d.schema.binding.discr.IFEDiscretisationModel1d2d;
import org.kalypso.kalypsomodel1d2d.schema.binding.discr.IPolyElement;
import org.kalypsodeegree.KalypsoDeegreePlugin;
import org.kalypsodeegree.model.geometry.GM_Polygon;
import org.kalypsodeegree.model.geometry.GM_Position;

/**
 * @author Gernot Belger
 */
public class ModelTinExporter implements ICoreRunnableWithProgress {
    private final IFile m_targetFile;

    private final IFEDiscretisationModel1d2d m_model;

    private BigDecimal m_min = new BigDecimal(Double.MAX_VALUE);

    private BigDecimal m_max = new BigDecimal(-Double.MAX_VALUE);

    public ModelTinExporter(final IFile targetFile, final IFEDiscretisationModel1d2d model) {
        m_targetFile = targetFile;
        m_model = model;
    }

    @Override
    public IStatus execute(final IProgressMonitor monitor) throws CoreException, InvocationTargetException {
        final IFE1D2DElement[] elements = m_model.getElements();
        final int size = elements.length;
        monitor.beginTask("Exporting triangles", size); //$NON-NLS-1$

        OutputStream os = null;
        try {
            final File dtmJavaFile = m_targetFile.getLocation().toFile();

            os = new GZIPOutputStream(new FileOutputStream(dtmJavaFile));

            final String crs = KalypsoDeegreePlugin.getDefault().getCoordinateSystem();
            final TinResultWriter triangleWriter = new TinResultWriter(os, crs, null);

            int cnt = 0;
            for (final IFE1D2DElement element : elements) {
                if (++cnt % 100 == 0)
                    monitor.subTask(String.format(" %d/%d", cnt, size)); //$NON-NLS-1$

                if (element instanceof IPolyElement) {
                    final IPolyElement poly = (IPolyElement) element;
                    final GM_Polygon surface = poly.getGeometry();
                    if (surface != null) {
                        final GM_Position[] exteriorRing = surface.getSurfacePatch().getExteriorRing();
                        setMinMax(exteriorRing);
                        triangleWriter.add(exteriorRing[0], exteriorRing[1], exteriorRing[2]);
                        if (exteriorRing.length > 4)
                            triangleWriter.add(exteriorRing[2], exteriorRing[3], exteriorRing[4]);
                    }
                }

                ProgressUtilities.worked(monitor, 1);
            }

            triangleWriter.finished();
            os.close();

            return Status.OK_STATUS;
        } catch (final CoreException e) {
            e.printStackTrace();
            throw e;
        } catch (final Exception e) {
            e.printStackTrace();
            throw new InvocationTargetException(e);
        } finally {
            IOUtils.closeQuietly(os);
            monitor.done();
            m_targetFile.refreshLocal(IResource.DEPTH_ONE, new NullProgressMonitor());
        }
    }

    private void setMinMax(final GM_Position[] exteriorRing) {
        for (final GM_Position position : exteriorRing) {
            final double z = position.getZ();
            if (!Double.isNaN(z)) {
                final BigDecimal val = new BigDecimal(z);
                m_min = m_min.min(val);
                m_max = m_min.max(val);
            }
        }
    }

    public BigDecimal getMax() {
        return m_max;
    }

    public BigDecimal getMin() {
        return m_min;
    }
}