gvsig-raster / org.gvsig.raster / trunk / org.gvsig.raster / org.gvsig.raster.io / org.gvsig.raster.io.base / src / main / java / org / gvsig / fmap / dal / coverage / dataset / io / GdalNative.java @ 220
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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 org.gvsig.fmap.dal.coverage.dataset.io; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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import java.awt.geom.Point2D; |
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import java.io.IOException; |
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import org.gvsig.fmap.dal.coverage.RasterLibrary; |
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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.ProcessInterruptedException; |
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import org.gvsig.raster.impl.datastruct.ExtentImpl; |
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import org.gvsig.raster.impl.process.RasterTask; |
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import org.gvsig.raster.impl.process.RasterTaskQueue; |
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import org.gvsig.raster.impl.store.properties.DataStoreColorInterpretation; |
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import org.gvsig.raster.impl.store.properties.DataStoreColorTable; |
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import org.gvsig.raster.impl.store.properties.DataStoreMetadata; |
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import org.gvsig.raster.impl.store.properties.DataStoreTransparency; |
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import es.gva.cit.jgdal.Gdal; |
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import es.gva.cit.jgdal.GdalBuffer; |
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import es.gva.cit.jgdal.GdalException; |
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import es.gva.cit.jgdal.GdalRasterBand; |
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import es.gva.cit.jgdal.GeoTransform; |
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/**
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* Soporte 'nativo' para ficheros desde GDAL.
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*
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* @author Luis W. Sevilla (sevilla_lui@gva.es)
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class GdalNative extends Gdal { |
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private String fileName = null; |
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private String shortName = ""; |
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public GeoTransform trans = null; |
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public int width = 0, height = 0; |
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public double originX = 0D, originY = 0D; |
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public String version = ""; |
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protected int rBandNr = 1, gBandNr = 2, bBandNr = 3, aBandNr = 4; |
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private int[] dataType = null; |
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DataStoreMetadata metadata = null;
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protected boolean georeferenced = true; |
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/**
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* Vectores que contiene los desplazamientos de un pixel cuando hay supersampling.
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* , es decir el n?mero de pixels de pantalla que tiene un pixel de imagen. Como todos
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* los pixeles no tienen el mismo ancho y alto ha de meterse en un array y no puede ser
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* una variable. Adem?s hay que tener en cuenta que el primer y ?ltimo pixel son de
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* distinto tama?o que el resto.
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*/
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public int[] stepArrayX = null; |
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public int[] stepArrayY = null; |
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protected GdalRasterBand[] gdalBands = null; |
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private double lastReadLine = -1; |
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private int currentFullWidth = -1; |
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private int currentFullHeight = -1; |
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private int currentViewWidth = -1; |
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private int currentViewHeight = -1; |
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private double currentViewX = 0D; |
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private double viewportScaleX = 0D; |
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private double viewportScaleY = 0D; |
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private double stepX = 0D; |
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private double stepY = 0D; |
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public boolean isSupersampling = false; |
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private boolean open = false; |
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/**
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* Estado de transparencia del raster.
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*/
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DataStoreTransparency fileTransparency = null;
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DataStoreColorTable palette = null;
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DataStoreColorInterpretation colorInterpr = null;
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AffineTransform ownTransformation = null; |
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AffineTransform externalTransformation = new AffineTransform(); |
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/**
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* Overview usada en el ?ltimo setView
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*/
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int currentOverview = -1; |
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public GdalNative(String fName) throws GdalException, IOException { |
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super();
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init(fName); |
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} |
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private void init(String fName) throws GdalException, IOException { |
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fileName = fName; |
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open(fName, GA_ReadOnly); |
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open = true;
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if (getPtro() == -1) |
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throw new GdalException("Error en la apertura del fichero. El fichero no tiene un formato v?lido."); |
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// ext = RasterUtilities.getExtensionFromFileName(fName);
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width = getRasterXSize(); |
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height = getRasterYSize(); |
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int[] dt = new int[getRasterCount()]; |
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for (int i = 0; i < getRasterCount(); i++) |
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dt[i] = this.getRasterBand(i + 1).getRasterDataType(); |
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setDataType(dt); |
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shortName = getDriverShortName(); |
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fileTransparency = new DataStoreTransparency();
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colorInterpr = new DataStoreColorInterpretation();
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metadata = new DataStoreMetadata(getMetadata(), colorInterpr);
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// Asignamos la interpretaci?n de color leida por gdal a cada banda. Esto
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// nos sirve para saber que banda de la imagen va asignada a cada banda de
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// visualizaci?n (ARGB)
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colorInterpr.initColorInterpretation(getRasterCount()); |
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metadata.initNoDataByBand(getRasterCount()); |
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for (int i = 0; i < getRasterCount(); i++) { |
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GdalRasterBand rb = getRasterBand(i + 1);
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String colorInt = getColorInterpretationName(rb.getRasterColorInterpretation());
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metadata.setNoDataValue(i, (rb.getRasterNoDataValue() == -9999.0) ? RasterLibrary.defaultNoDataValue : rb.getRasterNoDataValue());
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metadata.setNoDataEnabled(rb.existsNoDataValue()); |
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colorInterpr.setColorInterpValue(i, colorInt); |
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if (colorInt.equals("Alpha")) |
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fileTransparency.setTransparencyBand(i); |
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if (rb.getRasterColorTable() != null && palette == null) { |
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palette = new DataStoreColorTable();
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palette.createPaletteFromGdalColorTable(rb.getRasterColorTable()); |
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// fileTransparency.setTransparencyRangeList(palette.getTransparencyRange());
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} |
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} |
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fileTransparency.setTransparencyByPixelFromMetadata(metadata); |
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try {
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trans = getGeoTransform(); |
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boolean isCorrect = false; |
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for (int i = 0; i < trans.adfgeotransform.length; i++) |
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if (trans.adfgeotransform[i] != 0) |
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isCorrect = true;
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if (!isCorrect)
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throw new GdalException(""); |
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ownTransformation = new AffineTransform(trans.adfgeotransform[1], trans.adfgeotransform[4], trans.adfgeotransform[2], trans.adfgeotransform[5], trans.adfgeotransform[0], trans.adfgeotransform[3]); |
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externalTransformation = (AffineTransform) ownTransformation.clone();
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currentFullWidth = width; |
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currentFullHeight = height; |
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this.georeferenced = true; |
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} catch (GdalException exc) {
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// Transformaci?n para ficheros sin georreferenciaci?n. Se invierte la Y
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// ya que las WC decrecen de
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// arriba a abajo y los pixeles crecen de arriba a abajo
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ownTransformation = new AffineTransform(1, 0, 0, -1, 0, height); |
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externalTransformation = (AffineTransform) ownTransformation.clone();
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currentFullWidth = width; |
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currentFullHeight = height; |
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this.georeferenced = false; |
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} |
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} |
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/**
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* Returns true if this provider is open and false if don't
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* @return
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*/
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public boolean isOpen() { |
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return open;
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} |
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/*
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* (non-Javadoc)
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* @see es.gva.cit.jgdal.Gdal#close()
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*/
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public void close() throws GdalException { |
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open = false;
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super.close();
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} |
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/**
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* Obtiene el flag que informa de si el raster tiene valor no data o no.
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* Consultar? todas las bandas del mismo y si alguna tiene valor no data
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* devuelve true sino devolver? false.
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* @return true si tiene valor no data y false si no lo tiene
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* @throws GdalException
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*/
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public boolean existsNoDataValue() throws GdalException { |
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for (int i = 0; i < getRasterCount(); i++) { |
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GdalRasterBand rb = getRasterBand(i + 1);
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if (rb.existsNoDataValue())
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return true; |
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} |
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return false; |
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} |
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/**
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* Obtiene el flag que informa de si el raster tiene valor no data o no
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* en una banda concreta.
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* @return true si tiene valor no data en esa banda y false si no lo tiene
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* @param band Posici?n de la banda a consultar (0..n)
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* @throws GdalException
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*/
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public boolean existsNoDataValue(int band) throws GdalException { |
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GdalRasterBand rb = getRasterBand(band + 1);
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return rb.existsNoDataValue();
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} |
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/**
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* Devuelve el valor NoData en caso de existir, sino existe devuelve null.
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* @return
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*/
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public double getNoDataValue() { |
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if (metadata == null) |
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return RasterLibrary.defaultNoDataValue;
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if (metadata.getNoDataValue().length == 0) |
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return RasterLibrary.defaultNoDataValue;
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return metadata.getNoDataValue()[0]; |
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} |
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/**
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* Asigna el tipo de dato
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* @param dt entero que representa el tipo de dato
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*/
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public void setDataType(int[] dt) { |
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dataType = dt; |
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} |
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/**
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* Obtiene el tipo de dato
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* @return entero que representa el tipo de dato
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*/
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public int[] getDataType() { |
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return dataType;
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} |
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/**
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* Obtiene un punto 2D con las coordenadas del raster a partir de uno en coordenadas
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* del punto real.
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* Supone rasters no girados
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* @param pt punto en coordenadas del punto real
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* @return punto en coordenadas del raster
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*/
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public Point2D worldToRasterWithoutRot(Point2D pt) { |
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Point2D p = new Point2D.Double(); |
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AffineTransform at = new AffineTransform( externalTransformation.getScaleX(), 0, |
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0, externalTransformation.getScaleY(),
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externalTransformation.getTranslateX(), externalTransformation.getTranslateY()); |
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try {
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at.inverseTransform(pt, p); |
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} catch (NoninvertibleTransformException e) { |
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return pt;
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} |
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return p;
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} |
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/**
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* Obtiene un punto 2D con las coordenadas del raster a partir de uno en coordenadas
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* del punto real.
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* Supone rasters no girados
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* @param pt punto en coordenadas del punto real
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* @return punto en coordenadas del raster
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*/
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public Point2D worldToRaster(Point2D pt) { |
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Point2D p = new Point2D.Double(); |
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try {
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externalTransformation.inverseTransform(pt, p); |
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} catch (NoninvertibleTransformException e) { |
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return pt;
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} |
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return p;
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} |
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/**
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* Obtiene un punto del raster en coordenadas pixel a partir de un punto en coordenadas
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* reales.
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* @param pt Punto en coordenadas reales
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* @return Punto en coordenadas pixel.
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*/
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public Point2D rasterToWorld(Point2D pt) { |
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Point2D p = new Point2D.Double(); |
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externalTransformation.transform(pt, p); |
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return p;
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} |
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/**
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* Calcula el overview a usar. Hay que tener en cuenta que tenemos que tener calculadas las variables
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* viewPortScale, currentFullWidth y currentFulHeight
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* @param coordenada pixel expresada en double que indica la posici?n superior izquierda
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* @throws GdalException
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*/
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private void calcOverview(Point2D tl, Point2D br) throws GdalException { |
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gdalBands[0] = getRasterBand(1); |
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currentOverview = -1;
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if (gdalBands[0].getOverviewCount() > 0) { |
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GdalRasterBand ovb = null;
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for (int i = gdalBands[0].getOverviewCount() - 1; i > 0; i--) { |
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ovb = gdalBands[0].getOverview(i);
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if (ovb.getRasterBandXSize() > getRasterXSize() * viewportScaleX) {
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currentOverview = i; |
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viewportScaleX *= ((double) width / (double) ovb.getRasterBandXSize()); |
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viewportScaleY *= ((double) height / (double) ovb.getRasterBandYSize()); |
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stepX = 1D / viewportScaleX;
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stepY = 1D / viewportScaleY;
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currentFullWidth = ovb.getRasterBandXSize(); |
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currentFullHeight = ovb.getRasterBandYSize(); |
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currentViewX = Math.min(tl.getX(), br.getX());
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lastReadLine = Math.min(tl.getY(), br.getY());
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break;
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} |
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} |
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} |
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} |
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public void setView(double dWorldTLX, double dWorldTLY, |
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double dWorldBRX, double dWorldBRY, |
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int nWidth, int nHeight) throws GdalException { |
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currentFullWidth = width; |
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currentFullHeight = height; |
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Point2D tl = worldToRaster(new Point2D.Double(dWorldTLX, dWorldTLY)); |
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Point2D br = worldToRaster(new Point2D.Double(dWorldBRX, dWorldBRY)); |
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// Calcula cual es la primera l?nea a leer;
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currentViewWidth = nWidth; |
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currentViewHeight = nHeight; |
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// wcWidth = Math.abs(br.getX() - tl.getX());
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currentViewX = Math.min(tl.getX(), br.getX());
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viewportScaleX = (double) currentViewWidth / (br.getX() - tl.getX());
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viewportScaleY = (double) currentViewHeight / (br.getY() - tl.getY());
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stepX = 1D / viewportScaleX;
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stepY = 1D / viewportScaleY;
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lastReadLine = Math.min(tl.getY(), br.getY());
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//Para lectura del renderizado (ARGB). readWindow selecciona las bandas que necesita.
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// calcula el overview a usar
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gdalBands = new GdalRasterBand[4]; |
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calcOverview(tl, br); |
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// Selecciona las bandas y los overviews necesarios
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/*gdalBands[0] = getRasterBand(rBandNr);
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gdalBands[1] = gdalBands[0];
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gdalBands[2] = gdalBands[1];
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if(getRasterCount() >= 2) {
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gdalBands[1] = getRasterBand(gBandNr);
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gdalBands[2] = gdalBands[1];
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}
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if(this.getRasterCount() >= 3)
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gdalBands[2] = getRasterBand(bBandNr);
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if(colorInterpr.isAlphaBand())
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gdalBands[3] = getRasterBand(aBandNr);
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assignDataTypeFromGdalRasterBands(gdalBands);
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if (currentOverview > 0) {
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gdalBands[0] = gdalBands[0].getOverview(currentOverview);
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if(getRasterCount() >= 2) {
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gdalBands[1] = gdalBands[1].getOverview(currentOverview);
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}
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if(this.getRasterCount() >= 3)
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gdalBands[2] = gdalBands[2].getOverview(currentOverview);
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if(colorInterpr.isAlphaBand())
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gdalBands[3] = gdalBands[3].getOverview(currentOverview);
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}*/
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} |
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/**
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* Selecciona bandas y overview en el objeto GdalRasterBand[] para el n?mero de bandas solicitado.
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* @param nbands N?mero de bandas solicitado.
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* @throws GdalException
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*/
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public void selectGdalBands(int nbands) throws GdalException { |
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gdalBands = new GdalRasterBand[nbands];
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// Selecciona las bandas y los overviews necesarios
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gdalBands[0] = getRasterBand(1); |
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for (int i = 0; i < nbands; i++) |
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gdalBands[i] = gdalBands[0];
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assignDataTypeFromGdalRasterBands(gdalBands); |
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// setDataType(gdalBands[0].getRasterDataType());
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for (int i = 2; i <= nbands; i++) { |
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if (getRasterCount() >= i) {
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gdalBands[i - 1] = getRasterBand(i);
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for (int j = i; j < nbands; j++) |
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gdalBands[j] = gdalBands[i - 1];
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} |
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} |
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if (currentOverview > 0) { |
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gdalBands[0] = gdalBands[0].getOverview(currentOverview); |
| 411 |
for (int i = 2; i <= nbands; i++) { |
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if (getRasterCount() >= i)
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gdalBands[i - 1] = gdalBands[i - 1].getOverview(currentOverview); |
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} |
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} |
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} |
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int lastY = -1; |
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|
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/**
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* Lee una l?nea de bytes
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* @param line Buffer donde se cargan los datos
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* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
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* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
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* por la izquierda a mitad de pixel
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* @param gdalBuffer Buffer con la l?nea de datos original
|
| 427 |
*/
|
| 428 |
private void readLine(byte[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
| 429 |
double j = 0D; |
| 430 |
int i = 0; |
| 431 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
| 432 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
| 433 |
line[iBand][i] = gdalBuffer[iBand].buffByte[(int) j];
|
| 434 |
} |
| 435 |
} |
| 436 |
} |
| 437 |
|
| 438 |
/**
|
| 439 |
* Lee una l?nea de shorts
|
| 440 |
* @param line Buffer donde se cargan los datos
|
| 441 |
* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
| 442 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
| 443 |
* por la izquierda a mitad de pixel
|
| 444 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
| 445 |
*/
|
| 446 |
private void readLine(short[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
| 447 |
double j = 0D; |
| 448 |
int i = 0; |
| 449 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
| 450 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
| 451 |
line[iBand][i] = (short) (gdalBuffer[iBand].buffShort[(int) j] & 0xffff); |
| 452 |
} |
| 453 |
} |
| 454 |
} |
| 455 |
|
| 456 |
/**
|
| 457 |
* Lee una l?nea de ints
|
| 458 |
* @param line Buffer donde se cargan los datos
|
| 459 |
* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
| 460 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
| 461 |
* por la izquierda a mitad de pixel
|
| 462 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
| 463 |
*/
|
| 464 |
private void readLine(int[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
| 465 |
double j = 0D; |
| 466 |
int i = 0; |
| 467 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
| 468 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
| 469 |
line[iBand][i] = (gdalBuffer[iBand].buffInt[(int) j] & 0xffffffff); |
| 470 |
} |
| 471 |
} |
| 472 |
} |
| 473 |
|
| 474 |
/**
|
| 475 |
* Lee una l?nea de float
|
| 476 |
* @param line Buffer donde se cargan los datos
|
| 477 |
* @param initOffset Desplazamiento inicial desde el margen izquierdo. Esto es necesario para cuando
|
| 478 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
| 479 |
* por la izquierda a mitad de pixel
|
| 480 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
| 481 |
*/
|
| 482 |
private void readLine(float[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
| 483 |
double j = 0D; |
| 484 |
int i = 0; |
| 485 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
| 486 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
| 487 |
line[iBand][i] = gdalBuffer[iBand].buffFloat[(int) j];
|
| 488 |
} |
| 489 |
} |
| 490 |
} |
| 491 |
|
| 492 |
/**
|
| 493 |
* Lee una l?nea de doubles
|
| 494 |
* @param line Buffer donde se cargan los datos
|
| 495 |
* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
| 496 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
| 497 |
* por la izquierda a mitad de pixel
|
| 498 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
| 499 |
*/
|
| 500 |
private void readLine(double[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
| 501 |
double j = 0D; |
| 502 |
int i = 0; |
| 503 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
| 504 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
| 505 |
line[iBand][i] = gdalBuffer[iBand].buffDouble[(int) j];
|
| 506 |
} |
| 507 |
} |
| 508 |
} |
| 509 |
|
| 510 |
/**
|
| 511 |
* Lee una l?nea completa del raster y devuelve un array del tipo correcto. Esta funci?n es util
|
| 512 |
* para una lectura rapida de todo el fichero sin necesidad de asignar vista.
|
| 513 |
* @param nLine N?mero de l?nea a leer
|
| 514 |
* @param band Banda requerida
|
| 515 |
* @return Object que es un array unidimendional del tipo de datos del raster
|
| 516 |
* @throws GdalException
|
| 517 |
*/
|
| 518 |
public Object readCompleteLine(int nLine, int band) throws GdalException { |
| 519 |
GdalRasterBand gdalBand = super.getRasterBand(band + 1); |
| 520 |
GdalBuffer gdalBuf = null;
|
| 521 |
|
| 522 |
gdalBuf = gdalBand.readRaster(0, nLine, getRasterXSize(), 1, getRasterXSize(), 1, dataType[band]); |
| 523 |
|
| 524 |
if (dataType[band] == GDT_Byte)
|
| 525 |
return gdalBuf.buffByte;
|
| 526 |
|
| 527 |
if (dataType[band] == GDT_Int16 || dataType[band] == GDT_UInt16)
|
| 528 |
return gdalBuf.buffShort;
|
| 529 |
|
| 530 |
if (dataType[band] == GDT_Int32 || dataType[band] == GDT_UInt32)
|
| 531 |
return gdalBuf.buffInt;
|
| 532 |
|
| 533 |
if (dataType[band] == GDT_Float32)
|
| 534 |
return gdalBuf.buffFloat;
|
| 535 |
|
| 536 |
if (dataType[band] == GDT_Float64)
|
| 537 |
return gdalBuf.buffDouble;
|
| 538 |
|
| 539 |
if (dataType[band] == GDT_CInt16 || dataType[band] == GDT_CInt32 ||
|
| 540 |
dataType[band] == GDT_CFloat32 || dataType[band] == GDT_CFloat64) |
| 541 |
return null; |
| 542 |
|
| 543 |
return null; |
| 544 |
} |
| 545 |
|
| 546 |
/**
|
| 547 |
* Lee una bloque completo del raster y devuelve un array tridimensional del tipo correcto. Esta funci?n es util
|
| 548 |
* para una lectura rapida de todo el fichero sin necesidad de asignar vista.
|
| 549 |
* @param nLine N?mero de l?nea a leer
|
| 550 |
* @param band Banda requerida
|
| 551 |
* @return Object que es un array unidimendional del tipo de datos del raster
|
| 552 |
* @throws GdalException
|
| 553 |
*/
|
| 554 |
public Object readBlock(int pos, int blockHeight) throws GdalException, ProcessInterruptedException { |
| 555 |
bBandNr = super.getRasterCount();
|
| 556 |
int nX = getRasterXSize();
|
| 557 |
|
| 558 |
RasterTask task = RasterTaskQueue.get(Thread.currentThread().toString());
|
| 559 |
|
| 560 |
GdalRasterBand[] gdalBand = new GdalRasterBand[bBandNr]; |
| 561 |
for (int iBand = 0; iBand < gdalBand.length; iBand++) |
| 562 |
gdalBand[iBand] = super.getRasterBand(iBand + 1); |
| 563 |
|
| 564 |
GdalBuffer[] gdalBuf = new GdalBuffer[bBandNr]; |
| 565 |
|
| 566 |
if (dataType[0] == GDT_Byte) { |
| 567 |
byte[][][] buf = new byte[bBandNr][blockHeight][getRasterXSize()]; |
| 568 |
for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 569 |
gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, nX, blockHeight, nX, blockHeight, dataType[0]); |
| 570 |
for (int iRow = 0; iRow < blockHeight; iRow++) { |
| 571 |
for (int iCol = 0; iCol < nX; iCol++) |
| 572 |
buf[iBand][iRow][iCol] = gdalBuf[iBand].buffByte[iRow * nX + iCol]; |
| 573 |
if(task.getEvent() != null) |
| 574 |
task.manageEvent(task.getEvent()); |
| 575 |
} |
| 576 |
} |
| 577 |
return buf;
|
| 578 |
} else if (dataType[0] == GDT_CInt16 || dataType[0] == GDT_Int16 || dataType[0] == GDT_UInt16) { |
| 579 |
short[][][] buf = new short[bBandNr][blockHeight][getRasterXSize()]; |
| 580 |
for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 581 |
gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, nX, blockHeight, nX, blockHeight, dataType[0]); |
| 582 |
for (int iRow = 0; iRow < blockHeight; iRow++) { |
| 583 |
for (int iCol = 0; iCol < nX; iCol++) |
| 584 |
buf[iBand][iRow][iCol] = gdalBuf[iBand].buffShort[iRow * nX + iCol]; |
| 585 |
if(task.getEvent() != null) |
| 586 |
task.manageEvent(task.getEvent()); |
| 587 |
} |
| 588 |
} |
| 589 |
return buf;
|
| 590 |
} else if (dataType[0] == GDT_CInt32 || dataType[0] == GDT_Int32 || dataType[0] == GDT_UInt32) { |
| 591 |
int[][][] buf = new int[bBandNr][blockHeight][getRasterXSize()]; |
| 592 |
for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 593 |
gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, nX, blockHeight, nX, blockHeight, dataType[0]); |
| 594 |
for (int iRow = 0; iRow < blockHeight; iRow++) { |
| 595 |
for (int iCol = 0; iCol < nX; iCol++) |
| 596 |
buf[iBand][iRow][iCol] = gdalBuf[iBand].buffInt[iRow * nX + iCol]; |
| 597 |
if(task.getEvent() != null) |
| 598 |
task.manageEvent(task.getEvent()); |
| 599 |
} |
| 600 |
} |
| 601 |
return buf;
|
| 602 |
} else if(dataType[0] == GDT_Float32 || dataType[0] == GDT_CFloat32) { |
| 603 |
float[][][] buf = new float[bBandNr][blockHeight][getRasterXSize()]; |
| 604 |
for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 605 |
gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, nX, blockHeight, nX, blockHeight, dataType[0]); |
| 606 |
for (int iRow = 0; iRow < blockHeight; iRow++) { |
| 607 |
for (int iCol = 0; iCol < nX; iCol++) |
| 608 |
buf[iBand][iRow][iCol] = gdalBuf[iBand].buffFloat[iRow * nX + iCol]; |
| 609 |
if(task.getEvent() != null) |
| 610 |
task.manageEvent(task.getEvent()); |
| 611 |
} |
| 612 |
} |
| 613 |
return buf;
|
| 614 |
} else if(dataType[0] == GDT_Float64 || dataType[0] == GDT_CFloat64) { |
| 615 |
double[][][] buf = new double[bBandNr][blockHeight][getRasterXSize()]; |
| 616 |
for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 617 |
gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, nX, blockHeight, nX, blockHeight, dataType[0]); |
| 618 |
for (int iRow = 0; iRow < blockHeight; iRow++) { |
| 619 |
for (int iCol = 0; iCol < nX; iCol++) |
| 620 |
buf[iBand][iRow][iCol] = gdalBuf[iBand].buffDouble[iRow * nX + iCol]; |
| 621 |
if(task.getEvent() != null) |
| 622 |
task.manageEvent(task.getEvent()); |
| 623 |
} |
| 624 |
} |
| 625 |
return buf;
|
| 626 |
} |
| 627 |
|
| 628 |
return null; |
| 629 |
} |
| 630 |
|
| 631 |
/**
|
| 632 |
* Lectura de una l?nea de datos.
|
| 633 |
* @param line
|
| 634 |
* @throws GdalException
|
| 635 |
*/
|
| 636 |
public void readLine(Object line) throws GdalException { |
| 637 |
int w = (int) (Math.ceil(((double)currentViewWidth)*stepX) + 1); |
| 638 |
int x = (int) (currentViewX); |
| 639 |
int y = (int) (lastReadLine); |
| 640 |
GdalBuffer r = null, g = null, b = null; |
| 641 |
GdalBuffer a = new GdalBuffer();
|
| 642 |
|
| 643 |
while(y >= gdalBands[0].getRasterBandYSize()) |
| 644 |
y--; |
| 645 |
|
| 646 |
if (x+w > gdalBands[0].getRasterBandXSize()) |
| 647 |
w = gdalBands[0].getRasterBandXSize()-x;
|
| 648 |
|
| 649 |
if(gdalBands[0].getRasterColorTable() != null) { |
| 650 |
palette = new DataStoreColorTable();
|
| 651 |
palette.createPaletteFromGdalColorTable(gdalBands[0].getRasterColorTable());
|
| 652 |
r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType[0]); |
| 653 |
} else {
|
| 654 |
a.buffByte = new byte[w]; |
| 655 |
r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType[0]); |
| 656 |
g = b = r; |
| 657 |
if (getRasterCount() > 1 && gdalBands[1] != null) |
| 658 |
g = gdalBands[1].readRaster(x, y, w, 1, w, 1, dataType[0]); |
| 659 |
if (getRasterCount() > 2 && gdalBands[2] != null) |
| 660 |
b = gdalBands[2].readRaster(x, y, w, 1, w, 1, dataType[0]); |
| 661 |
} |
| 662 |
|
| 663 |
lastReadLine += stepY; |
| 664 |
|
| 665 |
double initOffset = Math.abs(currentViewX - ((int)currentViewX)); |
| 666 |
GdalBuffer[] bands = {r, g, b};
|
| 667 |
|
| 668 |
if (dataType[0] == GDT_Byte) |
| 669 |
readLine((byte[][])line, initOffset, bands); |
| 670 |
else if (dataType[0] == GDT_CInt16 || dataType[0] == GDT_Int16 || dataType[0] == GDT_UInt16) |
| 671 |
readLine((short[][])line, initOffset, bands); |
| 672 |
else if (dataType[0] == GDT_CInt32 || dataType[0] == GDT_Int32 || dataType[0] == GDT_UInt32) |
| 673 |
readLine((int[][])line, initOffset, bands); |
| 674 |
else if(dataType[0] == GDT_Float32 || dataType[0] == GDT_CFloat32) |
| 675 |
readLine((float[][])line, initOffset, bands); |
| 676 |
else if(dataType[0] == GDT_Float64 || dataType[0] == GDT_CFloat64) |
| 677 |
readLine((double[][])line, initOffset, bands); |
| 678 |
|
| 679 |
return;
|
| 680 |
} |
| 681 |
|
| 682 |
/**
|
| 683 |
* Cuando se hace una petici?n de carga de buffer la extensi?n pedida puede
|
| 684 |
* estar ajustada a la extensi?n del raster o no estarlo. En caso de no
|
| 685 |
* estarlo los pixeles del buffer que caen fuera de la extensi?n del raster
|
| 686 |
* tendr?n valor de NoData. Esta funci?n calcula en que pixel del buffer hay
|
| 687 |
* que empezar a escribir en caso de que este sea mayor que los datos a leer.
|
| 688 |
*
|
| 689 |
* @param dWorldTLX Posici?n X superior izquierda en coord reales
|
| 690 |
* @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
| 691 |
* @param dWorldBRX Posici?n X inferior derecha en coord reales
|
| 692 |
* @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
| 693 |
* @param nWidth Ancho en pixeles del buffer
|
| 694 |
* @param nHeight Alto en pixeles del buffer
|
| 695 |
* @return desplazamiento dentro del buffer en X e Y
|
| 696 |
*/
|
| 697 |
private int[] calcStepBuffer(Extent dataExtent, int nWidth, int nHeight, int[] stpBuffer) { |
| 698 |
Extent imageExtent = getExtentWithoutRot(); |
| 699 |
Extent ajustDataExtent = RasterLocator.getManager().getRasterUtils().calculateAdjustedView(dataExtent, imageExtent); |
| 700 |
if(!RasterLocator.getManager().getRasterUtils().compareExtents(dataExtent, ajustDataExtent)){
|
| 701 |
Point2D p1 = worldToRasterWithoutRot(new Point2D.Double(ajustDataExtent.minX(), ajustDataExtent.maxY())); |
| 702 |
Point2D p2 = worldToRasterWithoutRot(new Point2D.Double(ajustDataExtent.maxX(), ajustDataExtent.minY())); |
| 703 |
Point2D p3 = worldToRasterWithoutRot(new Point2D.Double(dataExtent.minX(), dataExtent.maxY())); |
| 704 |
// Point2D p4 = worldToRasterWithoutRot(new Point2D.Double(dataExtent.maxX(), dataExtent.minY()));
|
| 705 |
//Ese es el ancho y alto q tendr?a el buffer en caso de haberse ajustado
|
| 706 |
int w = (int)Math.abs(Math.ceil(p2.getX()) - Math.floor(p1.getX())); |
| 707 |
int h = (int)Math.abs(Math.floor(p1.getY()) - Math.ceil(p2.getY())); |
| 708 |
|
| 709 |
stpBuffer[0] = (int)(p1.getX() + (-p3.getX())); |
| 710 |
stpBuffer[1] = (int)(p1.getY() + (-p3.getY())); |
| 711 |
stpBuffer[2] = stpBuffer[0] + w; |
| 712 |
stpBuffer[3] = stpBuffer[1] + h; |
| 713 |
return new int[]{w, h}; |
| 714 |
} |
| 715 |
return new int[]{nWidth, nHeight}; |
| 716 |
} |
| 717 |
|
| 718 |
/**
|
| 719 |
* Lee una ventana de datos sin resampleo a partir de coordenadas reales.
|
| 720 |
* @param buf Buffer donde se almacenan los datos
|
| 721 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
| 722 |
* @param dWorldTLX Posici?n X superior izquierda en coord reales
|
| 723 |
* @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
| 724 |
* @param dWorldBRX Posici?n X inferior derecha en coord reales
|
| 725 |
* @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
| 726 |
* @param nWidth Ancho en pixeles del buffer
|
| 727 |
* @param nHeight Alto en pixeles del buffer
|
| 728 |
* @throws GdalException
|
| 729 |
*/
|
| 730 |
public void readWindow(Buffer buf, BandList bandList, double ulx, double uly,double lrx, double lry, |
| 731 |
int nWidth, int nHeight, boolean adjustToExtent) throws GdalException, ProcessInterruptedException { |
| 732 |
Extent petExtent = new ExtentImpl(ulx, uly, lrx, lry);
|
| 733 |
setView(ulx, uly, lrx, lry, nWidth, nHeight); |
| 734 |
Point2D tl = worldToRaster(new Point2D.Double(ulx, uly)); |
| 735 |
Point2D br = worldToRaster(new Point2D.Double(lrx, lry)); |
| 736 |
|
| 737 |
if(tl.getX() > br.getX())
|
| 738 |
tl.setLocation(tl.getX() - 1, tl.getY());
|
| 739 |
else
|
| 740 |
br.setLocation(br.getX() - 1, br.getY());
|
| 741 |
|
| 742 |
if(tl.getY() > br.getY())
|
| 743 |
tl.setLocation(tl.getX(), tl.getY() - 1);
|
| 744 |
else
|
| 745 |
br.setLocation(br.getX(), br.getY() - 1);
|
| 746 |
|
| 747 |
if(gdalBands.length == 0) |
| 748 |
return;
|
| 749 |
|
| 750 |
selectGdalBands(buf.getBandCount()); |
| 751 |
|
| 752 |
int x = (int) Math.round(Math.min(tl.getX(), br.getX())); |
| 753 |
int y = (int) Math.round(Math.min(tl.getY(), br.getY())); |
| 754 |
|
| 755 |
int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
| 756 |
//Si el buffer no se ajusta al extent entonces calculamos en que posici?n comienza a escribirse dentro del buffer
|
| 757 |
//ya que lo que cae fuera ser?n valores NoData
|
| 758 |
if(!adjustToExtent){
|
| 759 |
int[] wh = calcStepBuffer(petExtent, nWidth, nHeight, stpBuffer); |
| 760 |
if(x < 0) |
| 761 |
x = 0;
|
| 762 |
if(y < 0) |
| 763 |
y = 0;
|
| 764 |
readData(buf, bandList, x, y, wh[0], wh[1], wh[0], wh[1], 0, 0, stpBuffer); |
| 765 |
return;
|
| 766 |
} |
| 767 |
|
| 768 |
readData(buf, bandList, x, y, nWidth, nHeight, nWidth, nHeight, 0, 0, stpBuffer); |
| 769 |
} |
| 770 |
|
| 771 |
/**
|
| 772 |
* Lee una ventana de datos con resampleo a partir de coordenadas reales. Este m?todo lee la
|
| 773 |
* ventana de una vez cargando los datos de un golpe en el buffer. Las coordenadas se solicitan
|
| 774 |
* en coordenadas del mundo real por lo que estas pueden caer en cualquier parte de un pixel.
|
| 775 |
* Esto se hace m?s evidente cuando supersampleamos en la petici?n, es decir el buffer de de
|
| 776 |
* mayor tama?o que el n?mero de pixels solicitado.
|
| 777 |
*
|
| 778 |
* Para resolver esto escribiremos con la funci?n readRaster los datos sobre un buffer mayor
|
| 779 |
* que el solicitado. Despu?s calcularemos el desplazamiento en pixels dentro de este buffer
|
| 780 |
* de mayor tama?o hasta llegar a la coordenada real donde comienza la petici?n real que ha
|
| 781 |
* hecho el usuario. Esto es as? porque cuando supersampleamos no queremos los pixeles del
|
| 782 |
* raster de disco completos sino que en los bordes del buffer quedan cortados.
|
| 783 |
*
|
| 784 |
* @param buf Buffer donde se almacenan los datos
|
| 785 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
| 786 |
* @param dWorldTLX Posici?n X superior izquierda en coord reales
|
| 787 |
* @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
| 788 |
* @param dWorldBRX Posici?n X inferior derecha en coord reales
|
| 789 |
* @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
| 790 |
* @param nWidth Ancho en pixeles de la petici?n
|
| 791 |
* @param nHeight Alto en pixeles de la petici?n
|
| 792 |
* @param bufWidth Ancho del buffer
|
| 793 |
* @param bufHeight Alto del buffer
|
| 794 |
* @throws GdalException
|
| 795 |
*/
|
| 796 |
public void readWindow(Buffer buf, BandList bandList, double ulx, double uly, double lrx, double lry, |
| 797 |
double nWidth, double nHeight, int bufWidth, int bufHeight, boolean adjustToExtent) throws GdalException, ProcessInterruptedException { |
| 798 |
Extent petExtent = new ExtentImpl(ulx, uly, lrx, lry);
|
| 799 |
setView(ulx, uly, lrx, lry, bufWidth, bufHeight); |
| 800 |
Point2D tl = worldToRaster(new Point2D.Double(ulx, uly)); |
| 801 |
Point2D br = worldToRaster(new Point2D.Double(lrx, lry)); |
| 802 |
tl.setLocation(tl.getX() - 0.5, tl.getY() - 0.5); |
| 803 |
br.setLocation(br.getX() - 0.5, br.getY() - 0.5); |
| 804 |
|
| 805 |
/*if(tl.getX() > br.getX())
|
| 806 |
tl.setLocation(tl.getX() - 1, tl.getY());
|
| 807 |
else
|
| 808 |
br.setLocation(br.getX() - 1, br.getY());
|
| 809 |
|
| 810 |
if(tl.getY() > br.getY())
|
| 811 |
tl.setLocation(tl.getX(), tl.getY() - 1);
|
| 812 |
else
|
| 813 |
br.setLocation(br.getX(), br.getY() - 1);*/
|
| 814 |
|
| 815 |
adjustPoints(tl, br); |
| 816 |
|
| 817 |
if(gdalBands.length == 0) |
| 818 |
return;
|
| 819 |
|
| 820 |
selectGdalBands(buf.getBandCount()); |
| 821 |
|
| 822 |
int x = (int) Math.min(tl.getX(), br.getX()); |
| 823 |
int y = (int) Math.min(tl.getY(), br.getY()); |
| 824 |
//int endX = (int) Math.ceil(Math.max(br.getX(), tl.getX()));
|
| 825 |
//int endY = (int) Math.ceil(Math.max(br.getY(), tl.getY()));
|
| 826 |
|
| 827 |
int stpX = 0; |
| 828 |
int stpY = 0; |
| 829 |
|
| 830 |
/*if(bufWidth > Math.ceil(nWidth)){
|
| 831 |
stpX = (int)(((tl.getX() - x) * bufWidth) / nWidth);
|
| 832 |
bufWidth = (int)((Math.abs(endX - x) * bufWidth) / nWidth);
|
| 833 |
}
|
| 834 |
if(bufHeight > Math.ceil(nHeight)){
|
| 835 |
stpY = (int)(((tl.getY() - y) * bufHeight) / nHeight);
|
| 836 |
bufHeight = (int)((Math.abs(endY - y) * bufHeight) / nHeight);
|
| 837 |
}
|
| 838 |
|
| 839 |
nWidth = (int)Math.abs(endX - x);
|
| 840 |
nHeight = (int)Math.abs(endY - y);*/
|
| 841 |
|
| 842 |
nWidth = (nWidth * currentFullWidth) / width; |
| 843 |
nHeight = (nHeight * currentFullHeight) / height; |
| 844 |
x = (int)(((long)x * (long)currentFullWidth) / (long)width); |
| 845 |
y = (int) (((long)y * (long)currentFullHeight) / (long)height); |
| 846 |
|
| 847 |
int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
| 848 |
//Si el buffer no se ajusta al extent entonces calculamos en que posici?n comienza a escribirse dentro del buffer
|
| 849 |
//ya que lo que cae fuera ser?n valores NoData
|
| 850 |
if(!adjustToExtent){
|
| 851 |
int[] wh = calcStepBuffer(petExtent, bufWidth, bufHeight, stpBuffer); |
| 852 |
if(x < 0) |
| 853 |
x = 0;
|
| 854 |
if(y < 0) |
| 855 |
y = 0;
|
| 856 |
stpBuffer[0] = (int)((stpBuffer[0] * bufWidth) / nWidth); |
| 857 |
stpBuffer[1] = (int)((stpBuffer[1] * bufHeight) / nHeight); |
| 858 |
stpBuffer[2] = (int)((stpBuffer[2] * bufWidth) / nWidth); |
| 859 |
stpBuffer[3] = (int)((stpBuffer[3] * bufHeight) / nHeight); |
| 860 |
bufWidth = (int)Math.abs(stpBuffer[2] - stpBuffer[0]); |
| 861 |
bufHeight = (int)Math.abs(stpBuffer[3] - stpBuffer[1]); |
| 862 |
readData(buf, bandList, x, y, wh[0], wh[1], bufWidth, bufHeight, 0, 0, stpBuffer); |
| 863 |
return;
|
| 864 |
} |
| 865 |
|
| 866 |
if ((x + nWidth) > gdalBands[0].getRasterBandXSize()) |
| 867 |
nWidth = gdalBands[0].getRasterBandXSize() - x;
|
| 868 |
|
| 869 |
if ((y + nHeight) > gdalBands[0].getRasterBandYSize()) |
| 870 |
nHeight = gdalBands[0].getRasterBandYSize() - y;
|
| 871 |
|
| 872 |
readData(buf, bandList, x, y, (int)nWidth, (int)nHeight, bufWidth, bufHeight, stpX, stpY, stpBuffer); |
| 873 |
} |
| 874 |
|
| 875 |
private void adjustPoints(Point2D ul, Point2D lr) { |
| 876 |
double a = (ul.getX() - (int)ul.getX()); |
| 877 |
double b = (ul.getY() - (int)ul.getY()); |
| 878 |
ul.setLocation( (a > 0.95 || a < 0.05) ? Math.round(ul.getX()) : ul.getX(), |
| 879 |
(b > 0.95 || b < 0.05) ? Math.round(ul.getY()) : ul.getY()); |
| 880 |
lr.setLocation( (a > 0.95 || a < 0.05) ? Math.round(lr.getX()) : lr.getX(), |
| 881 |
(b > 0.95 || b < 0.05) ? Math.round(lr.getY()) : lr.getY()); |
| 882 |
} |
| 883 |
|
| 884 |
/**
|
| 885 |
* Lee una ventana de datos sin resampleo a partir de coordenadas en pixeles.
|
| 886 |
* @param buf Buffer donde se almacenan los datos
|
| 887 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
| 888 |
* @param x Posici?n X en pixeles
|
| 889 |
* @param y Posici?n Y en pixeles
|
| 890 |
* @param w Ancho en pixeles
|
| 891 |
* @param h Alto en pixeles
|
| 892 |
* @throws GdalException
|
| 893 |
*/
|
| 894 |
public void readWindow(Buffer buf, BandList bandList, int x, int y, int w, int h) |
| 895 |
throws GdalException, ProcessInterruptedException {
|
| 896 |
gdalBands = new GdalRasterBand[getRasterCount()];
|
| 897 |
isSupersampling = false;
|
| 898 |
if(gdalBands.length == 0) |
| 899 |
return;
|
| 900 |
|
| 901 |
// Selecciona las bandas
|
| 902 |
gdalBands[0] = getRasterBand(1); |
| 903 |
|
| 904 |
for(int iBand = 1; iBand < gdalBands.length; iBand++) |
| 905 |
gdalBands[iBand] = getRasterBand(iBand + 1);
|
| 906 |
|
| 907 |
assignDataTypeFromGdalRasterBands(gdalBands); |
| 908 |
|
| 909 |
int yMax = y + h;
|
| 910 |
readDataByLine(buf, bandList, x, y, w, yMax); |
| 911 |
} |
| 912 |
|
| 913 |
/**
|
| 914 |
* Lee una ventana de datos con resampleo a partir de coordenadas en pixeles. Este m?todo lee la
|
| 915 |
* ventana de una vez cargando los datos de un golpe en el buffer.
|
| 916 |
* @param buf Buffer donde se almacenan los datos
|
| 917 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
| 918 |
* @param x Posici?n X en pixeles
|
| 919 |
* @param y Posici?n Y en pixeles
|
| 920 |
* @param w Ancho en pixeles
|
| 921 |
* @param h Alto en pixeles
|
| 922 |
* @param bufWidth Ancho del buffer
|
| 923 |
* @param bufHeight Alto del buffer
|
| 924 |
* @throws GdalException
|
| 925 |
*/
|
| 926 |
public void readWindow(Buffer buf, BandList bandList, int x, int y, int w, int h, int bufWidth, int bufHeight) throws GdalException, ProcessInterruptedException { |
| 927 |
gdalBands = new GdalRasterBand[getRasterCount()];
|
| 928 |
|
| 929 |
if(gdalBands.length == 0) |
| 930 |
return;
|
| 931 |
|
| 932 |
// Selecciona las bandas
|
| 933 |
gdalBands[0] = getRasterBand(1); |
| 934 |
|
| 935 |
for(int iBand = 1; iBand < gdalBands.length; iBand++) |
| 936 |
gdalBands[iBand] = getRasterBand(iBand + 1);
|
| 937 |
|
| 938 |
assignDataTypeFromGdalRasterBands(gdalBands); |
| 939 |
|
| 940 |
int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
| 941 |
readData(buf, bandList, x, y, w, h, bufWidth, bufHeight, 0, 0, stpBuffer); |
| 942 |
} |
| 943 |
|
| 944 |
/**
|
| 945 |
* Asigna el tipo de datos de las bandas a partir de una lista de GdalRasterBands
|
| 946 |
* @param gdalBands
|
| 947 |
* @throws GdalException
|
| 948 |
*/
|
| 949 |
private void assignDataTypeFromGdalRasterBands(GdalRasterBand[] gdalBands) throws GdalException { |
| 950 |
int[] dt = new int[gdalBands.length]; |
| 951 |
for (int i = 0; i < gdalBands.length; i++) { |
| 952 |
if(gdalBands[i] != null) |
| 953 |
dt[i] = gdalBands[i].getRasterDataType(); |
| 954 |
} |
| 955 |
setDataType(dt); |
| 956 |
} |
| 957 |
|
| 958 |
/**
|
| 959 |
* Lee una ventana de datos sin resampleo a partir de coordenadas en pixeles. Esta funci?n es usuada por
|
| 960 |
* readWindow para coordenadas reales y readWindow en coordenadas pixel.
|
| 961 |
* @param buf Buffer donde se almacenan los datos
|
| 962 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
| 963 |
* @param x Posici?n X en pixeles
|
| 964 |
* @param y Posici?n Y en pixeles
|
| 965 |
* @param w Ancho en pixeles
|
| 966 |
* @param h Alto en pixeles
|
| 967 |
* @param bufWidth Ancho del buffer
|
| 968 |
* @param bufHeight Alto del buffer
|
| 969 |
* @param stepX Desplazamiento en pixeles en X a partir de la posici?n x. Este desplazamiento es util cuando hay un
|
| 970 |
* supersampleo ya que puede ser que de los pixeles que est?n en el borde izquierdo de la petici?n solo queramos una
|
| 971 |
* parte de ellos.
|
| 972 |
* @param stepY Desplazamiento en pixeles en Y a partir de la posici?n y. Este desplazamiento es util cuando hay un
|
| 973 |
* supersampleo ya que puede ser que de los pixeles que est?n en el borde superior de la petici?n solo queramos una
|
| 974 |
* parte de ellos.
|
| 975 |
* @param stepBuffer El buffer puede empezar a escribirse a partir de un pixel determinado y acabar de escribir antes
|
| 976 |
* de fin de buffer. Este par?metro indica el desplazamiento desde el inicio del buffer y la posici?n final.
|
| 977 |
* <UL>
|
| 978 |
* <LI>stepBuffer[0]:Desplazamiento en X desde el inicio</LI>
|
| 979 |
* <LI>stepBuffer[1]:Desplazamiento en Y desde el inicio</LI>
|
| 980 |
* <LI>stepBuffer[2]:Posici?n X final</LI>
|
| 981 |
* <LI>stepBuffer[3]:Posici?n Y final</LI>
|
| 982 |
* </UL>
|
| 983 |
* @throws GdalException
|
| 984 |
*/
|
| 985 |
private void readData(Buffer buf, BandList bandList, int x, int y, int w, int h, |
| 986 |
int bufWidth, int bufHeight, int stpX, int stpY, int[] stepBuffer) throws GdalException, ProcessInterruptedException { |
| 987 |
|
| 988 |
RasterTask task = RasterTaskQueue.get(Thread.currentThread().toString());
|
| 989 |
|
| 990 |
GdalBuffer gdalBuf = null;
|
| 991 |
for(int iBand = 0; iBand < gdalBands.length; iBand++) { |
| 992 |
int[] drawableBands = bandList.getBufferBandToDraw(fileName, iBand); |
| 993 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 994 |
continue;
|
| 995 |
int init = (int)((bufWidth * stpY) + stpX); //Pos inicial. Desplazamos stpX pixels hacia la derecha y bajamos stpY lineas |
| 996 |
int pos = init;
|
| 997 |
gdalBuf = gdalBands[iBand].readRaster(x, y, w, h, bufWidth, bufHeight, dataType[iBand]); |
| 998 |
if(dataType[iBand] == Gdal.GDT_Byte){
|
| 999 |
for (int line = stepBuffer[1]; line < stepBuffer[3]/*buf.getHeight()*/; line++) { |
| 1000 |
pos = (int)((bufWidth * (line - stepBuffer[0])) + init); |
| 1001 |
for (int col = stepBuffer[0]; col < stepBuffer[2]/*buf.getWidth()*/; col ++) { |
| 1002 |
buf.setElem(line, col, iBand, gdalBuf.buffByte[pos]); |
| 1003 |
pos ++; |
| 1004 |
} |
| 1005 |
if(task.getEvent() != null) |
| 1006 |
task.manageEvent(task.getEvent()); |
| 1007 |
} |
| 1008 |
}else if((dataType[iBand] == Gdal.GDT_UInt16) || (dataType[iBand] == Gdal.GDT_Int16) || (dataType[iBand] == Gdal.GDT_CInt16)){ |
| 1009 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1010 |
pos = (int)((bufWidth * (line - stepBuffer[0])) + init); |
| 1011 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
| 1012 |
buf.setElem(line, col, iBand, gdalBuf.buffShort[pos]); |
| 1013 |
pos ++; |
| 1014 |
} |
| 1015 |
if(task.getEvent() != null) |
| 1016 |
task.manageEvent(task.getEvent()); |
| 1017 |
} |
| 1018 |
}else if((dataType[iBand] == Gdal.GDT_UInt32) || (dataType[iBand] == Gdal.GDT_Int32) || (dataType[iBand] == Gdal.GDT_CInt32)){ |
| 1019 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1020 |
pos = (int)((bufWidth * (line - stepBuffer[0])) + init); |
| 1021 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
| 1022 |
buf.setElem(line, col, iBand, gdalBuf.buffInt[pos]); |
| 1023 |
pos ++; |
| 1024 |
} |
| 1025 |
if(task.getEvent() != null) |
| 1026 |
task.manageEvent(task.getEvent()); |
| 1027 |
} |
| 1028 |
}else if(dataType[iBand] == Gdal.GDT_Float32){ |
| 1029 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1030 |
pos = (int)((bufWidth * (line - stepBuffer[0])) + init); |
| 1031 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
| 1032 |
buf.setElem(line, col, iBand, gdalBuf.buffFloat[pos]); |
| 1033 |
pos ++; |
| 1034 |
} |
| 1035 |
if(task.getEvent() != null) |
| 1036 |
task.manageEvent(task.getEvent()); |
| 1037 |
} |
| 1038 |
}else if(dataType[iBand] == Gdal.GDT_Float64){ |
| 1039 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1040 |
pos = (int)((bufWidth * (line - stepBuffer[0])) + init); |
| 1041 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
| 1042 |
buf.setElem(line, col, iBand, gdalBuf.buffDouble[pos]); |
| 1043 |
pos ++; |
| 1044 |
} |
| 1045 |
if(task.getEvent() != null) |
| 1046 |
task.manageEvent(task.getEvent()); |
| 1047 |
} |
| 1048 |
} |
| 1049 |
} |
| 1050 |
} |
| 1051 |
|
| 1052 |
/**
|
| 1053 |
* Lee una ventana de datos sin resampleo a partir de coordenadas en pixeles. Esta funci?n es usuada por
|
| 1054 |
* readWindow para coordenadas reales y readWindow en coordenadas pixel.
|
| 1055 |
* @param buf Buffer donde se almacenan los datos
|
| 1056 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
| 1057 |
* @param x Posici?n X en pixeles
|
| 1058 |
* @param y Posici?n Y en pixeles
|
| 1059 |
* @param w Ancho en pixeles
|
| 1060 |
* @param yMax altura m?xima de y
|
| 1061 |
* @throws GdalException
|
| 1062 |
*/
|
| 1063 |
private void readDataByLine(Buffer buf, BandList bandList, int x, int y, int w, int yMax) throws GdalException, ProcessInterruptedException { |
| 1064 |
GdalBuffer gdalBuf = null;
|
| 1065 |
int rasterBufLine;
|
| 1066 |
RasterTask task = RasterTaskQueue.get(Thread.currentThread().toString());
|
| 1067 |
|
| 1068 |
for(int iBand = 0; iBand < gdalBands.length; iBand++) { |
| 1069 |
int[] drawableBands = bandList.getBufferBandToDraw(fileName, iBand); |
| 1070 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 1071 |
continue;
|
| 1072 |
if(dataType[iBand] == Gdal.GDT_Byte) {
|
| 1073 |
for (int line = y; line < yMax; line++) { |
| 1074 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
| 1075 |
rasterBufLine = line - y; |
| 1076 |
buf.setLineInBandByte(gdalBuf.buffByte, rasterBufLine, iBand); |
| 1077 |
if(task.getEvent() != null) |
| 1078 |
task.manageEvent(task.getEvent()); |
| 1079 |
} |
| 1080 |
}else if((dataType[iBand] == Gdal.GDT_UInt16) || (dataType[iBand] == Gdal.GDT_Int16) || (dataType[iBand] == Gdal.GDT_CInt16)) { |
| 1081 |
for (int line = y; line < yMax; line++) { |
| 1082 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
| 1083 |
rasterBufLine = line - y; |
| 1084 |
buf.setLineInBandShort(gdalBuf.buffShort, rasterBufLine, iBand); |
| 1085 |
if(task.getEvent() != null) |
| 1086 |
task.manageEvent(task.getEvent()); |
| 1087 |
} |
| 1088 |
}else if((dataType[iBand] == Gdal.GDT_UInt32) || (dataType[iBand] == Gdal.GDT_Int32) || (dataType[iBand] == Gdal.GDT_CInt32)) { |
| 1089 |
for (int line = y; line < yMax; line++) { |
| 1090 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
| 1091 |
rasterBufLine = line - y; |
| 1092 |
buf.setLineInBandInt(gdalBuf.buffInt, rasterBufLine, iBand); |
| 1093 |
if(task.getEvent() != null) |
| 1094 |
task.manageEvent(task.getEvent()); |
| 1095 |
} |
| 1096 |
}else if(dataType[iBand] == Gdal.GDT_Float32){ |
| 1097 |
for (int line = y; line < yMax; line++) { |
| 1098 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
| 1099 |
rasterBufLine = line - y; |
| 1100 |
buf.setLineInBandFloat(gdalBuf.buffFloat, rasterBufLine, iBand); |
| 1101 |
if(task.getEvent() != null) |
| 1102 |
task.manageEvent(task.getEvent()); |
| 1103 |
} |
| 1104 |
}else if(dataType[iBand] == Gdal.GDT_Float64){ |
| 1105 |
for (int line = y; line < yMax; line++) { |
| 1106 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
| 1107 |
rasterBufLine = line - y; |
| 1108 |
buf.setLineInBandDouble(gdalBuf.buffDouble, rasterBufLine, iBand); |
| 1109 |
if(task.getEvent() != null) |
| 1110 |
task.manageEvent(task.getEvent()); |
| 1111 |
} |
| 1112 |
} |
| 1113 |
} |
| 1114 |
} |
| 1115 |
|
| 1116 |
/**
|
| 1117 |
* Obtiene el valor de un pixel determinado por las coordenadas x e y que se pasan
|
| 1118 |
* por par?metro
|
| 1119 |
* @param x Coordenada X del pixel
|
| 1120 |
* @param y Coordenada Y del pixel
|
| 1121 |
* @return Array de Object donde cada posici?n representa una banda y el valor ser? Integer
|
| 1122 |
* en caso de ser byte, shot o int, Float en caso de ser float y Double en caso de ser double.
|
| 1123 |
*/
|
| 1124 |
public Object[] getData(int x, int y) { |
| 1125 |
try {
|
| 1126 |
Object[] data = new Object[getRasterCount()]; |
| 1127 |
for(int i = 0; i < getRasterCount(); i++){ |
| 1128 |
GdalRasterBand rb = getRasterBand(i + 1);
|
| 1129 |
GdalBuffer r = rb.readRaster(x, y, 1, 1, 1, 1, dataType[i]); |
| 1130 |
switch(dataType[i]){
|
| 1131 |
case 0: break; //Sin tipo |
| 1132 |
case 1: data[i] = new Integer(r.buffByte[0]); //Buffer byte (8) |
| 1133 |
break;
|
| 1134 |
case 2: //Buffer short (16) |
| 1135 |
case 3: data[i] = new Integer(r.buffShort[0]); //Buffer short (16) |
| 1136 |
break;
|
| 1137 |
case 4: //Buffer int (32) |
| 1138 |
case 5: data[i] = new Integer(r.buffInt[0]); //Buffer int (32) |
| 1139 |
break;
|
| 1140 |
case 6: data[i] = new Float(r.buffFloat[0]); //Buffer float (32) |
| 1141 |
break;
|
| 1142 |
case 7: data[i] = new Double(r.buffDouble[0]); //Buffer double (64) |
| 1143 |
break;
|
| 1144 |
} |
| 1145 |
} |
| 1146 |
return data;
|
| 1147 |
} catch (GdalException e) {
|
| 1148 |
return null; |
| 1149 |
} |
| 1150 |
} |
| 1151 |
|
| 1152 |
public int getBlockSize(){ |
| 1153 |
return this.getBlockSize(); |
| 1154 |
} |
| 1155 |
|
| 1156 |
/**
|
| 1157 |
* Devuelve la transformaci?n del fichero de georreferenciaci?n
|
| 1158 |
* @return AffineTransform
|
| 1159 |
*/
|
| 1160 |
public AffineTransform getOwnTransformation() { |
| 1161 |
return ownTransformation;
|
| 1162 |
} |
| 1163 |
|
| 1164 |
/**
|
| 1165 |
* Calcula el extent en coordenadas del mundo real sin rotaci?n. Solo coordenadas y tama?o de pixel
|
| 1166 |
* @return Extent
|
| 1167 |
*/
|
| 1168 |
public Extent getExtentWithoutRot() {
|
| 1169 |
AffineTransform at = new AffineTransform( externalTransformation.getScaleX(), 0, |
| 1170 |
0, externalTransformation.getScaleY(),
|
| 1171 |
externalTransformation.getTranslateX(), externalTransformation.getTranslateY()); |
| 1172 |
Point2D p1 = new Point2D.Double(0, 0); |
| 1173 |
Point2D p2 = new Point2D.Double(width, height); |
| 1174 |
at.transform(p1, p1); |
| 1175 |
at.transform(p2, p2); |
| 1176 |
return new ExtentImpl(p1, p2); |
| 1177 |
} |
| 1178 |
|
| 1179 |
/**
|
| 1180 |
* Asigna una transformaci?n que es aplicada sobre la que ya tiene el propio fichero
|
| 1181 |
* @param t
|
| 1182 |
*/
|
| 1183 |
public void setExternalTransform(AffineTransform t){ |
| 1184 |
externalTransformation = t; |
| 1185 |
} |
| 1186 |
|
| 1187 |
/**
|
| 1188 |
* Obtiene el nombre del driver de Gdal
|
| 1189 |
* @return Cadena que representa el nombre del driver de gdal
|
| 1190 |
*/
|
| 1191 |
public String getGdalShortName() { |
| 1192 |
return shortName;
|
| 1193 |
} |
| 1194 |
|
| 1195 |
} |
| 1196 |
|
| 1197 |
|
| 1198 |
|
| 1199 |
|