root / trunk / extensions / extSextanteGvsigBindings / src / es / unex / sextante / gvsig / core / gvRasterLayer.java @ 34832
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/* gvSIG. Geographic Information System of the Valencian Government
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*
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* Copyright (C) 2007-2008 Infrastructures and Transports Department
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* of the Valencian Government (CIT)
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301, USA.
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*
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*/
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package es.unex.sextante.gvsig.core; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.Rectangle2D; |
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import java.io.BufferedWriter; |
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import java.io.File; |
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import java.io.FileWriter; |
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import java.io.IOException; |
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import java.text.DecimalFormat; |
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import java.text.DecimalFormatSymbols; |
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import java.util.Locale; |
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import java.util.logging.Logger; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.fmap.raster.layers.FLyrRasterSE; |
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import org.gvsig.raster.buffer.RasterBufferInvalidException; |
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import org.gvsig.raster.buffer.WriterBufferServer; |
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import org.gvsig.raster.dataset.GeoRasterWriter; |
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import org.gvsig.raster.dataset.IBuffer; |
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import org.gvsig.raster.dataset.NotSupportedExtensionException; |
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import org.gvsig.raster.dataset.Params; |
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import org.gvsig.raster.dataset.io.RasterDriverException; |
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import org.gvsig.raster.grid.Grid; |
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import org.gvsig.raster.grid.GridException; |
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import com.iver.andami.Utilities; |
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import es.unex.sextante.dataObjects.AbstractRasterLayer; |
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import es.unex.sextante.dataObjects.IRasterLayer; |
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import es.unex.sextante.rasterWrappers.GridExtent; |
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/**
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* {@link IRasterLayer} implementation to be used in gvSIG. Allows to read
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* information from a {@link FLyrRasterSE} or to create a new Grid to be
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* written.
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*
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* @author gvSIG Team
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* @version $Id$
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*/
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public class gvRasterLayer extends AbstractRasterLayer { |
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private IProjection projection = null; |
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private FLyrRasterSE rasterLayer;
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private Grid grid = null; |
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private int dataType = -1; |
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/**
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* Cached value optimization: the getNoDataValue() method seems to be called
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* by sextante for each pixel.
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*/
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private double noDataValue; |
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/**
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* Cached value optimization: the getBandsCount() method seems to be called
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* by sextante for each pixel.
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*/
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private int bandsCount; |
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private String filename = null; |
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private String name; |
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private GridExtent sextanteExtent;
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private double DEFAULT_NO_DATA_VALUE = -99999.0D; |
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public void create(Grid grid, int bandsCount, double noDataValue, |
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IProjection projection, String name, String fileName) { |
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this.grid = grid;
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this.bandsCount = bandsCount;
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this.noDataValue = noDataValue;
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this.projection = projection;
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this.name = name;
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this.filename = fileName;
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if (grid != null) { |
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this.dataType = grid.getDataType();
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} |
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} |
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public void create(FLyrRasterSE rasterLayer) { |
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Grid grid = createReadOnlyGrid(rasterLayer); |
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create(grid, rasterLayer.getBandCount(), rasterLayer.getNoDataValue(), |
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rasterLayer.getProjection(), rasterLayer.getName(), rasterLayer |
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.getDataSource().getDataset(0)[0].getFName()); |
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this.rasterLayer = rasterLayer;
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this.m_BaseDataObject = rasterLayer;
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} |
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public void create(String sName, String sFilename, GridExtent ge, |
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int iDataType, int iNumBands, Object crs) { |
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int[] bands = new int[iNumBands]; |
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for (int i = 0; i < bands.length; i++) { |
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bands[i] = i; |
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} |
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org.gvsig.raster.grid.GridExtent gridExtent = new org.gvsig.raster.grid.GridExtent(
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ge.getXMin(), ge.getYMin(), ge.getXMax(), ge.getYMax(), |
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ge.getCellSize()); |
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try {
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grid = new Grid(gridExtent, gridExtent, iDataType, bands);
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} catch (RasterBufferInvalidException e) {
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throw new RuntimeException( |
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"Error creating a new empty writable Grid with: GridExtent = "
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+ gridExtent + ", data type = " + iDataType
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+ ", bands = " + iNumBands, e);
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} |
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grid.setNoDataValue(DEFAULT_NO_DATA_VALUE); |
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IProjection projection = crs instanceof IProjection ? (IProjection) crs
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: null;
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this.sextanteExtent = ge;
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create(grid, iNumBands, DEFAULT_NO_DATA_VALUE, projection, sName, sFilename); |
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} |
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public void create(String sName, String sFilename, GridExtent ge, |
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int iDataType, Object crs) { |
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create(sName, sFilename, ge, iDataType, 1, crs);
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} |
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public int getDataType() { |
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return grid.getDataType();
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} |
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@Override
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public void assign(double dValue) { |
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if (isWritable()) {
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super.assign(dValue);
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} |
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} |
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@Override
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public void assign(IRasterLayer layer) { |
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if (isWritable()) {
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super.assign(layer);
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} |
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} |
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/**
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* If the contained grid is a writable one.
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*
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* @return if the contained grid is a writable one
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*/
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private final boolean isWritable() { |
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return rasterLayer == null; |
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} |
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@Override
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public void setNoData(int x, int y) { |
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if (isWritable()) {
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try {
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grid.setNoData(x, y); |
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} catch (InterruptedException e) { |
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throw new RuntimeException( |
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"Interrupted while setting to NoData the cell x = " + x
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+ ", y = " + y, e);
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} |
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} |
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} |
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public void setNoDataValue(double dNoDataValue) { |
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grid.setNoDataValue(dNoDataValue); |
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this.noDataValue = dNoDataValue;
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} |
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public double getNoDataValue() { |
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// Safer approach:
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// return isWritable() ? noDataValue : rasterLayer.getNoDataValue();
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// More efficient approach:
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return noDataValue;
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} |
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public double getCellValueInLayerCoords(int x, int y, int band) { |
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IBuffer buffer = grid.getRasterBuf(); |
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try {
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switch (dataType) {
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case IBuffer.TYPE_DOUBLE:
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return buffer.getElemDouble(y, x, band);
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case IBuffer.TYPE_FLOAT:
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return buffer.getElemFloat(y, x, band);
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case IBuffer.TYPE_INT:
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return buffer.getElemInt(y, x, band);
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case IBuffer.TYPE_SHORT:
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case IBuffer.TYPE_USHORT:
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return buffer.getElemShort(y, x, band);
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case IBuffer.TYPE_BYTE:
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return (buffer.getElemByte(y, x, band) & 0xff); |
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default:
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return grid.getNoDataValue();
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} |
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} catch (InterruptedException e) { |
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throw new RuntimeException( |
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"Interrupted while getting value of cell x = " + x
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+ ", y = " + y + ", band = " + band, e); |
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} |
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} |
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public void setCellValue(int x, int y, int band, double dValue) { |
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if (isWritable()) {
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IBuffer buffer = grid.getRasterBuf(); |
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try {
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switch (grid.getDataType()) {
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case IBuffer.TYPE_DOUBLE:
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buffer.setElem(y, x, band, dValue); |
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break;
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case IBuffer.TYPE_FLOAT:
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buffer.setElem(y, x, band, (float) dValue);
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break;
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case IBuffer.TYPE_INT:
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buffer.setElem(y, x, band, (int) dValue);
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break;
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case IBuffer.TYPE_SHORT:
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case IBuffer.TYPE_USHORT:
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buffer.setElem(y, x, band, (short) dValue);
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break;
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case IBuffer.TYPE_BYTE:
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buffer.setElem(y, x, band, (byte) dValue);
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break;
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} |
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} catch (InterruptedException e) { |
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throw new RuntimeException( |
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"Interrupted while setting value of cell x = " + x
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+ ", y = " + y + ", band = " + band |
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+ ", value = " + dValue, e);
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} |
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} |
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} |
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public int getBandsCount() { |
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return isWritable() ? bandsCount : rasterLayer.getBandCount();
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} |
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public void fitToGridExtent(GridExtent ge) { |
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if (isWritable()) {
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int iNX, iNY;
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int x, y;
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int iBand;
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if (ge != null) { |
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if (!ge.equals(getWindowGridExtent())) {
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if (isWritable()) {
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FLyrRasterSE gvSIGLayer = getRasterLayer( |
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Long.toString(System.currentTimeMillis()) |
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.toString(), projection); |
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gvRasterLayer orgLayer = new gvRasterLayer();
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orgLayer.create(gvSIGLayer); |
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orgLayer.setFullExtent(); |
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iNX = ge.getNX(); |
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iNY = ge.getNY(); |
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m_BaseDataObject = null;
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create(this.getName(), getFilename(), ge,
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this.getDataType(), this.getBandsCount()); |
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for (iBand = 0; iBand < this.getBandsCount(); iBand++) { |
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for (y = 0; y < iNY; y++) { |
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for (x = 0; x < iNX; x++) { |
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setCellValue(x, y, iBand, |
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orgLayer.getCellValueAsDouble(x, y, |
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iBand)); |
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} |
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} |
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} |
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} |
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} |
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} |
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} |
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} |
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public FLyrRasterSE getRasterLayer(String sDescription, |
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IProjection projection) {
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FLyrRasterSE layer; |
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String sFilename = getFilename(sDescription, "tif"); |
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try {
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exportToGeoTiff(sFilename, projection); |
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layer = FLyrRasterSE.createLayer(sDescription, new File(sFilename), |
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projection); |
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layer.setNoDataValue(this.getNoDataValue());
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return layer;
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} catch (Exception e) { |
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e.printStackTrace(); |
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return null; |
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} |
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} |
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public static String getFilename(String sRoot, String sExtension) { |
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String sFilename;
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int i = 1; |
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sRoot = sRoot.toLowerCase(); |
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sRoot = sRoot.replaceAll(" ", "_"); |
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sRoot = sRoot.replaceAll("\\)", ""); |
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sRoot = sRoot.replaceAll("\\(", "_"); |
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sRoot = sRoot.replaceAll("\\[", "_"); |
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sRoot = sRoot.replaceAll("\\]", ""); |
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sRoot = sRoot.replaceAll("<", "_"); |
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sRoot = sRoot.replaceAll(">", "_"); |
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sRoot = sRoot.replaceAll("__", "_"); |
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while (true) { |
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sFilename = Utilities.createTempDirectory() + File.separator |
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+ sRoot + Integer.toString(i) + "." + sExtension; |
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File file = new File(sFilename); |
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if (file.exists()) {
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i++; |
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} else {
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return sFilename;
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} |
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} |
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} |
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public void postProcess() { |
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if (isWritable()) {
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export(getFilename(), projection);
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FLyrRasterSE rasterLayer = (FLyrRasterSE) FileTools.openLayer( |
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getFilename(), getName(), null);
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create(rasterLayer); |
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rasterLayer.setNoDataValue(getNoDataValue()); |
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} |
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} |
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private Grid createReadOnlyGrid(FLyrRasterSE rasterLayer) {
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try {
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return rasterLayer.getReadOnlyFullGrid(false); |
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} catch (GridException e) {
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throw new RuntimeException( |
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"Error getting a read only grid from the FlyrRasterSE: "
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+ rasterLayer, e); |
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} catch (InterruptedException e) { |
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throw new RuntimeException( |
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"Error getting a read only grid from the FlyrRasterSE: "
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+ rasterLayer, e); |
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} |
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} |
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public void open() { |
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if (!isWritable() && grid == null) { |
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this.grid = createReadOnlyGrid(this.rasterLayer); |
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this.dataType = grid.getDataType();
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} |
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} |
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public void close() { |
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if (grid != null) { |
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grid.getRasterBuf().free(); |
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} |
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grid = null;
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dataType = -1;
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// bandsCount = -1;
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// projection = null;
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// name = null;
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// rasterLayer = null;
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// m_BaseDataObject = null;
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// noDataValue = DEFAULT_NO_DATA_VALUE;
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// filename = null;
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} |
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public Rectangle2D getFullExtent() { |
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if (isWritable()) {
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return getLayerGridExtent().getAsRectangle2D();
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} |
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else {
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return rasterLayer.getFullExtent();
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} |
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} |
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public GridExtent getLayerGridExtent() {
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if (isWritable()) {
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return sextanteExtent;
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} else {
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final GridExtent extent = new GridExtent(); |
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extent.setXRange(rasterLayer.getMinX(), rasterLayer.getMaxX()); |
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extent.setYRange(rasterLayer.getMinY(), rasterLayer.getMaxY()); |
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extent.setCellSize(rasterLayer.getCellSize()); |
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return extent;
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} |
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} |
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|
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public double getLayerCellSize() { |
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return grid.getCellSize();
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} |
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|
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public String getFilename() { |
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return isWritable() ? filename : rasterLayer.getFileName()[0]; |
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} |
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|
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public Object getCRS() { |
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return isWritable() ? projection : rasterLayer.getProjection();
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} |
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|
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public String getName() { |
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return isWritable() ? name : rasterLayer.getName();
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} |
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|
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public void setName(String name) { |
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this.name = name;
|
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if (rasterLayer != null) { |
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rasterLayer.setName(name); |
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} |
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} |
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|
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private void export(String sFilename, IProjection projection) { |
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|
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if (sFilename.endsWith("asc")) { |
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exportToArcInfoASCIIFile(sFilename); |
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} else {
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exportToGeoTiff(sFilename, projection); |
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} |
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|
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} |
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|
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private void exportToArcInfoASCIIFile(String sFilename) { |
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|
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try {
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FileWriter f = new FileWriter(sFilename); |
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BufferedWriter fout = new BufferedWriter(f); |
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DecimalFormat df = new DecimalFormat("##.###"); |
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df.setDecimalFormatSymbols(new DecimalFormatSymbols(Locale.US)); |
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df.setDecimalSeparatorAlwaysShown(true);
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|
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GridExtent m_GridExtent = getLayerGridExtent(); |
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|
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fout.write("ncols " + Integer.toString(m_GridExtent.getNX())); |
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fout.newLine(); |
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fout.write("nrows " + Integer.toString(m_GridExtent.getNY())); |
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fout.newLine(); |
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fout.write("xllcorner " + Double.toString(m_GridExtent.getXMin())); |
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fout.newLine(); |
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fout.write("yllcorner " + Double.toString(m_GridExtent.getYMin())); |
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fout.newLine(); |
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fout.write("cellsize "
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+ Double.toString(m_GridExtent.getCellSize()));
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fout.newLine(); |
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fout.write("nodata_value " + Double.toString(getNoDataValue())); |
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fout.newLine(); |
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|
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for (int i = 0; i < m_GridExtent.getNY(); i++) { |
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for (int j = 0; j < m_GridExtent.getNX(); j++) { |
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fout.write(df.format(getCellValueAsDouble(j, i)) + " ");
|
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} |
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fout.newLine(); |
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} |
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fout.close(); |
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f.close(); |
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} catch (IOException e) { |
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throw new RuntimeException( |
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"Error exporting the generated raster to the file: "
|
| 476 |
+ sFilename, e); |
| 477 |
} |
| 478 |
} |
| 479 |
|
| 480 |
private void exportToGeoTiff(String sFilename, IProjection projection) { |
| 481 |
|
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IBuffer buf = grid.getRasterBuf(); |
| 483 |
WriterBufferServer writerBufferServer = new WriterBufferServer();
|
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writerBufferServer.setBuffer(buf, -1);
|
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|
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GridExtent m_GridExtent = getLayerGridExtent(); |
| 487 |
/*
|
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* Extent ext = new Extent(m_GridExtent.getAsRectangle2D());
|
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* ViewPortData vpData = new ViewPortData(projection, ext, new
|
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* Dimension(m_GridExtent.getNX(),m_GridExtent.getNY()));
|
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*/
|
| 492 |
try {
|
| 493 |
Params params = GeoRasterWriter.getWriter(sFilename).getParams(); |
| 494 |
AffineTransform affineTransform = new AffineTransform( |
| 495 |
m_GridExtent.getCellSize(), 0, 0, |
| 496 |
-m_GridExtent.getCellSize(), m_GridExtent.getXMin(), |
| 497 |
m_GridExtent.getYMax()); |
| 498 |
GeoRasterWriter writer = GeoRasterWriter |
| 499 |
.getWriter(writerBufferServer, sFilename, |
| 500 |
buf.getBandCount(), affineTransform, |
| 501 |
m_GridExtent.getNX(), m_GridExtent.getNY(), |
| 502 |
buf.getDataType(), params, projection); |
| 503 |
writer.dataWrite(); |
| 504 |
writer.writeClose(); |
| 505 |
} catch (NotSupportedExtensionException e) {
|
| 506 |
throw new RuntimeException( |
| 507 |
"Error exporting the generated raster to the file: "
|
| 508 |
+ sFilename, e); |
| 509 |
} catch (RasterDriverException e) {
|
| 510 |
throw new RuntimeException( |
| 511 |
"Error exporting the generated raster to the file: "
|
| 512 |
+ sFilename, e); |
| 513 |
} catch (IOException e) { |
| 514 |
throw new RuntimeException( |
| 515 |
"Error exporting the generated raster to the file: "
|
| 516 |
+ sFilename, e); |
| 517 |
} catch (InterruptedException e) { |
| 518 |
throw new RuntimeException( |
| 519 |
"Error exporting the generated raster to the file: "
|
| 520 |
+ sFilename, e); |
| 521 |
} |
| 522 |
|
| 523 |
} |
| 524 |
|
| 525 |
} |