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package org.gvsig.raster.postgis.io;
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import java.awt.geom.AffineTransform;
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import java.awt.geom.Point2D;
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import java.awt.geom.Rectangle2D;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.Iterator;
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import org.gvsig.fmap.dal.DALLocator;
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import org.gvsig.fmap.dal.DataStore;
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import org.gvsig.fmap.dal.coverage.RasterLocator;
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import org.gvsig.fmap.dal.coverage.dataset.Buffer;
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import org.gvsig.fmap.dal.coverage.datastruct.BandList;
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import org.gvsig.fmap.dal.coverage.datastruct.Extent;
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import org.gvsig.fmap.dal.coverage.exception.NotSupportedExtensionException;
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import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException;
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import org.gvsig.fmap.dal.coverage.exception.RasterDriverException;
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import org.gvsig.fmap.dal.exception.DataException;
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import org.gvsig.fmap.dal.serverexplorer.db.DBServerExplorer;
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import org.gvsig.fmap.dal.spi.DataManagerProviderServices;
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import org.gvsig.fmap.dal.store.db.DBStoreParameters;
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import org.gvsig.jgdal.GdalException;
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import org.gvsig.metadata.MetadataLocator;
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import org.gvsig.raster.cache.tile.provider.TileListener;
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import org.gvsig.raster.gdal.io.GdalNative;
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import org.gvsig.raster.gdal.io.GdalProvider;
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import org.gvsig.raster.impl.datastruct.ExtentImpl;
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import org.gvsig.raster.impl.store.AbstractRasterDataParameters;
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import org.gvsig.raster.impl.store.DefaultStoreFactory;
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import org.gvsig.tools.ToolsLocator;
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class PostGISRasterProvider extends GdalProvider {
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public static String NAME = "PostGIS Raster Store";
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public static String DESCRIPTION = "PostGIS Raster file";
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public static final String METADATA_DEFINITION_NAME = "PostGISRasterStore";
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private DBServerExplorer dbServerExplorer = null;
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private DBStoreParameters dbParameters = null;
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private ArrayList<Overview> overviews = new ArrayList<Overview>();
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public static String NAME = "PostGIS Raster Store";
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public static String DESCRIPTION = "PostGIS Raster file";
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public static final String METADATA_DEFINITION_NAME = "PostGISRasterStore";
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private static final String OVERVIEW_PREFIX = "o_";
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private DBServerExplorer dbServerExplorer = null;
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private DBStoreParameters dbParameters = null;
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private ArrayList<Overview> overviews = new ArrayList<Overview>();
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class Overview implements Comparable<Overview> {
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public int width = 0;
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public int height = 0;
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public int factor = 0;
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public DBStoreParameters param = null;
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public int width = 0;
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public int height = 0;
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public int factor = 0;
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public double pxSizeOverview = 0;
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public DBStoreParameters param = null;
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public Overview() {
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}
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public Overview(int f, int w, int h, DBStoreParameters p) {
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this.width = w;
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this.height = h;
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this.factor = f;
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this.param = p;
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this.pxSizeOverview = getExtent().width() / (double)w;
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}
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public int compareTo(Overview o) {
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if(factor < o.factor)
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return -1;
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dataman.registerStoreFactory(NAME, DefaultStoreFactory.class);
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}
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public PostGISRasterProvider() {
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}
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public PostGISRasterProvider (PostGISRasterDataParameters params,
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DataStoreProviderServices storeServices) throws NotSupportedExtensionException {
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super(params, storeServices, ToolsLocator.getDynObjectManager()
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setDataType(dt);
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PostGISRasterDataParameters p = (PostGISRasterDataParameters)params;
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dbParameters = (DBStoreParameters)p.getDBStoreParameters();
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dbServerExplorer = p.getDBExplorer();
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//Object obj = p.getDynValue(PostGISRasterDataParameters.FIELD_DBPARAMS);
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dbParameters = (DBStoreParameters)p.getDynValue(PostGISRasterDataParameters.FIELD_DBPARAMS);
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dbServerExplorer = (DBServerExplorer)p.getDynValue(PostGISRasterDataParameters.FIELD_DBEXPLORER);
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try {
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readOverviews();
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} catch (DataException e) {
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}
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}
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/**
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* Reads overviews from database. The overviews in PostGIS raster are loaded
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* in separated tables. The name of those tables is the same that the original table
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* with a overview prefix. Now this prefix is "o_X_" where the X is a factor scale.
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*
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* For that reason the overview object contains the DataParameter which correspond
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* to each table.
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*
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* @throws DataException
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*/
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private void readOverviews() throws DataException {
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overviews.clear();
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overviews.add(new Overview(1, (int)getWidth(), (int)getHeight(), (DBStoreParameters)param));
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String table = dbParameters.getTable();
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List parameters = dbServerExplorer.list();
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while (iter.hasNext()) {
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DBStoreParameters p = (DBStoreParameters) iter.next();
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String tname = p.getTable();
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if(tname.endsWith(table) && tname.startsWith("o_")) {
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if(tname.endsWith(table) && tname.startsWith(OVERVIEW_PREFIX)) {
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String factor = tname.substring(tname.indexOf('_') + 1);
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factor = tname.substring(0, tname.indexOf('_'));
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factor = factor.substring(0, factor.indexOf('_'));
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try {
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Overview o = new Overview();
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o.factor = new Integer(factor);
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o.width = (int)(getWidth() / o.factor);
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o.height = (int)(getHeight() / o.factor);
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o.pxSizeOverview = getExtent().width() / (double)o.width;
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o.param = p;
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overviews.add(o);
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} catch (NumberFormatException e) {
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}
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Collections.sort(overviews);
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}
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/**
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* Selects the right overview. The right overview means the first
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* one with a pixel size lesser or equals than the original.
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* @param pixels
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* @param mts
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*/
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private void overviewSelector(int pixels, double mts) {
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this.param = overviews.get(0).param;
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double pxSizeRequest = mts / (double)pixels;
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for (int i = overviews.size() - 1; i > 0; i--) {
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Overview ovb = overviews.get(i);
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if(pxSizeRequest <= ovb.pxSizeOverview) {
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this.param = ovb.param;
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}
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}
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}
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.impl.provider.DefaultRasterProvider#getWindowRaster(double, double, double, double, int, int, org.gvsig.fmap.dal.coverage.datastruct.BandList, org.gvsig.raster.cache.tile.provider.TileListener)
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*/
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public void getWindow(Extent ex, int bufWidth, int bufHeight,
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BandList bandList, TileListener listener) throws ProcessInterruptedException, RasterDriverException {
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super.getWindow(ex, bufWidth, bufHeight, bandList, listener);
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}
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.impl.provider.DefaultRasterProvider#getWindowRaster(org.gvsig.fmap.dal.coverage.datastruct.Extent, org.gvsig.fmap.dal.coverage.datastruct.BandList, org.gvsig.fmap.dal.coverage.dataset.Buffer)
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*/
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public Buffer getWindow(Extent ex, BandList bandList, Buffer rasterBuf)
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throws ProcessInterruptedException, RasterDriverException {
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return super.getWindow(ex, bandList, rasterBuf);
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}
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.impl.provider.DefaultRasterProvider#getWindowRaster(double, double, double, double, org.gvsig.fmap.dal.coverage.datastruct.BandList, org.gvsig.fmap.dal.coverage.dataset.Buffer, boolean)
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*/
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public Buffer getWindow(double ulx, double uly, double w, double h,
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BandList bandList, Buffer rasterBuf, boolean adjustToExtent) throws ProcessInterruptedException, RasterDriverException {
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return super.getWindow(ulx, uly, w, h, bandList, rasterBuf, adjustToExtent);
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}
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.impl.provider.DefaultRasterProvider#getWindowRaster(double, double, double, double, int, int, org.gvsig.fmap.dal.coverage.datastruct.BandList, org.gvsig.fmap.dal.coverage.dataset.Buffer, boolean)
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*/
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public Buffer getWindow(Extent extent,
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int bufWidth, int bufHeight, BandList bandList, Buffer rasterBuf, boolean adjustToExtent) throws ProcessInterruptedException, RasterDriverException {
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return super.getWindow(extent, bufWidth, bufHeight, bandList, rasterBuf, adjustToExtent);
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}
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.impl.provider.DefaultRasterProvider#getWindowRaster(int, int, org.gvsig.fmap.dal.coverage.datastruct.BandList, org.gvsig.fmap.dal.coverage.dataset.Buffer)
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*/
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public Buffer getWindow(int x, int y,
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BandList bandList, Buffer rasterBuf) throws ProcessInterruptedException, RasterDriverException {
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return super.getWindow(x, y, bandList, rasterBuf);
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}
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.impl.provider.DefaultRasterProvider#getWindowRaster(int, int, int, int, int, int, org.gvsig.fmap.dal.coverage.datastruct.BandList, org.gvsig.fmap.dal.coverage.dataset.Buffer)
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*/
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public Buffer getWindow(int x, int y, int w, int h,
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int bufWidth, int bufHeight, BandList bandList, Buffer rasterBuf) throws ProcessInterruptedException, RasterDriverException {
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return super.getWindow(x, y, w, h, bufWidth, bufHeight, bandList, rasterBuf);
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}
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}
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