root / trunk / libraries / libRaster / src / org / gvsig / raster / driver / EcwDriver.java @ 10740
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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*
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* Copyright (C) 2007 IVER T.I. and Generalitat Valenciana.
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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., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*/
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package org.gvsig.raster.driver; |
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import java.awt.geom.Point2D; |
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import java.io.File; |
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import java.util.Vector; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.gvsig.raster.driver.datasetproperties.DatasetTransparency; |
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import org.gvsig.raster.extensionPoints.ExtensionPoints; |
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import org.gvsig.raster.extensionPoints.ExtensionPointsSingleton; |
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import org.gvsig.raster.shared.Extent; |
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import org.gvsig.raster.shared.RasterUtilities; |
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import com.ermapper.ecw.JNCSException; |
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import com.ermapper.ecw.JNCSFile; |
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import com.ermapper.ecw.JNCSFileNotOpenException; |
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import com.ermapper.ecw.JNCSInvalidSetViewException; |
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import com.ermapper.ecw.JNCSProgressiveUpdate; |
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import es.gva.cit.jgdal.GdalException; |
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/**
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* Driver de Ecw
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*
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class EcwDriver extends RasterDataset implements JNCSProgressiveUpdate { |
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private JNCSFile file = null; |
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private int currentFullWidth = -1; |
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private int currentFullHeight = -1; |
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/**
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* Contorno en coordenadas geogr?ficas sin rotaci?n aplicada. Esto es util para poder
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* calcular los pixeles necesarios que se van a leer del raster.
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*/
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public Contour bBoxWithoutRot = new Contour(); |
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/**
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* Estado de transparencia del raster.
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*/
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protected DatasetTransparency fileTransparency = null; |
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/**
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* Extent de la ventana seleccionada
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*/
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private Extent view = null; |
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static {
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ExtensionPoints extensionPoints = ExtensionPointsSingleton.getInstance(); |
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extensionPoints.add("RasterDriver", "ecw", EcwDriver.class); |
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extensionPoints.add("RasterDriver", "jp2", EcwDriver.class); |
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} |
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class Contour extends Vector { |
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final private static long serialVersionUID = 0; |
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public double minX = Double.MAX_VALUE, minY = Double.MAX_VALUE; |
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public double maxX = -Double.MAX_VALUE, maxY = -Double.MAX_VALUE; |
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public Contour() {
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super();
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} |
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public void add(Point2D pt) { |
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super.add(pt);
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if (pt.getX() > maxX) maxX = pt.getX();
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if (pt.getX() < minX) minX = pt.getX();
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if (pt.getY() > maxY) maxY = pt.getY();
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if (pt.getY() < minY) minY = pt.getY();
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} |
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} |
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/**
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* Constructor. Abre el dataset.
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* @param proj Proyecci?n
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* @param fName Nombre del fichero ecw
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* @throws NotSupportedExtensionException
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*/
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public EcwDriver(IProjection proj, String fName)throws NotSupportedExtensionException { |
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super(proj, fName);
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extent = new Extent();
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try {
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if (!new File(fName).exists() && !fName.startsWith("ecwp:")) |
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throw new NotSupportedExtensionException("Extension not supported"); |
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file = new JNCSFile(fName, false); |
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load(); |
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//readGeoInfo(fName);
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bandCount = file.numBands; |
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getTransparencyDatasetStatus(); |
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setDataType(IBuffer.TYPE_BYTE); |
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} catch (Exception e) { |
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throw new NotSupportedExtensionException("Extension not supported"); |
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} |
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} |
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/**
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* Carga un ECW.
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* @param fname
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*/
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public GeoData load() {
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double minX;
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double minY;
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double maxX;
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double maxY;
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if(file.cellIncrementY > 0) |
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file.cellIncrementY = -file.cellIncrementY; |
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minX = file.originX; |
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maxY = file.originY; |
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maxX = file.originX + |
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((double) (file.width) * file.cellIncrementX);
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minY = file.originY + |
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((double) (file.height) * file.cellIncrementY);
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currentFullWidth = file.width; |
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currentFullHeight = file.height; |
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boundingBoxWithoutRotation(); |
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extent = new Extent(minX, minY, maxX, maxY);
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requestExtent = extent; |
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return this; |
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} |
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/**
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* Calcula la bounding box en la que est? metido el raster teniendo en cuenta
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* el tama?o de pixel y la rotaci?n.
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*/
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private void boundingBoxWithoutRotation(){ |
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double ox = file.originX;
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double oy = file.originY;
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double resx = file.cellIncrementX;
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double resy = file.cellIncrementY;
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bBoxWithoutRot.add(new Point2D.Double(ox, oy)); |
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bBoxWithoutRot.add(new Point2D.Double(ox + resx * (file.width), oy)); |
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bBoxWithoutRot.add(new Point2D.Double(ox, oy + resy * (file.height))); |
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bBoxWithoutRot.add(new Point2D.Double(ox + resx * (file.width), oy + resy * (file.height))); |
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} |
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/**
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* Cierra el fichero ECW
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*/
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public void close() { |
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if(file != null){ |
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file.close(true);
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file = null;
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} |
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} |
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/**
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* Obtiene el objeto que contiene el estado de la transparencia
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*/
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public DatasetTransparency getTransparencyDatasetStatus() {
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if(fileTransparency == null) |
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fileTransparency = new DatasetTransparency();
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return fileTransparency;
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} |
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/**
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* Devuelve el ancho de la imagen
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*/
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public int getWidth() { |
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return file.width;
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} |
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/**
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* Devuelve el alto de la imagen
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*/
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public int getHeight() { |
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return file.height;
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} |
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/**
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* Obtiene el extent de la ?ltima ventana seleccionada.
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* @return Extent
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*/
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public Extent getView() {
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return view;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.RasterDataset#setView(org.gvsig.fmap.raster.Extent)
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*/
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public void setView(Extent e) { |
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//TODO: FUNCIONALIDAD: Falta aplicar la transformaci?n a la vista en caso de que haya un fichero .rmf. Mirar EcwFile de piloto
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view = new Extent(e);
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} |
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/**
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* Cuando se hace una petici?n de carga de buffer la extensi?n pedida puede estar ajustada a la extensi?n del raster
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* o no estarlo. En caso de no estarlo los pixeles del buffer que caen fuera de la extensi?n del raster tendr?n valor
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* de NoData. Esta funci?n calcula en que pixel del buffer hay que empezar a escribir en caso de que este sea mayor
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* que los datos a leer.
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* @param dWorldTLX Posici?n X superior izquierda en coord reales
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* @param dWorldTLY Posici?n Y superior izquierda en coord reales
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* @param dWorldBRX Posici?n X inferior derecha en coord reales
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* @param dWorldBRY Posici?n Y inferior derecha en coord reales
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* @param nWidth Ancho en pixeles del buffer
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* @param nHeight Alto en pixeles del buffer
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* @return desplazamiento dentro del buffer en X e Y
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*/
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private int[] calcStepBuffer(Extent dataExtent, int nWidth, int nHeight, int[] stpBuffer){ |
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Extent imageExtent = new Extent(bBoxWithoutRot.minX, bBoxWithoutRot.minY, bBoxWithoutRot.maxX, bBoxWithoutRot.maxY);
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Extent ajustDataExtent = RasterUtilities.calculateAdjustedView(dataExtent, imageExtent); |
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if(!RasterUtilities.compareExtents(dataExtent, ajustDataExtent)){
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Point2D p1 = worldToRaster(new Point2D.Double(ajustDataExtent.minX(), ajustDataExtent.maxY())); |
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Point2D p2 = worldToRaster(new Point2D.Double(ajustDataExtent.maxX(), ajustDataExtent.minY())); |
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Point2D p3 = worldToRaster(new Point2D.Double(dataExtent.minX(), dataExtent.maxY())); |
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Point2D p4 = worldToRaster(new Point2D.Double(dataExtent.maxX(), dataExtent.minY())); |
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//Ese es el ancho y alto q tendr?a el buffer en caso de haberse ajustado
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int w = (int)Math.abs(Math.ceil(p2.getX()) - Math.floor(p1.getX())); |
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int h = (int)Math.abs(Math.floor(p1.getY()) - Math.ceil(p2.getY())); |
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stpBuffer[0] = (int)(p1.getX() + (-p3.getX())); |
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stpBuffer[1] = (int)(p1.getY() + (-p3.getY())); |
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stpBuffer[2] = stpBuffer[0] + w; |
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stpBuffer[3] = stpBuffer[1] + h; |
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return new int[]{w, h}; |
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} |
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return new int[]{nWidth, nHeight}; |
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.RasterDataset#worldToRaster(java.awt.geom.Point2D)
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*/
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public Point2D worldToRaster(Point2D pt) { |
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double x = ((pt.getX() - bBoxWithoutRot.minX) * ((double) currentFullWidth)) / (double)(bBoxWithoutRot.maxX - bBoxWithoutRot.minX); |
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double y = ((bBoxWithoutRot.maxY - pt.getY()) * ((double) currentFullHeight)) / (double)(bBoxWithoutRot.maxY - bBoxWithoutRot.minY); |
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Point2D ptRes = new Point2D.Double(x, y); |
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return ptRes;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.RasterDataset#rasterToWorld(java.awt.geom.Point2D)
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*/
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public Point2D rasterToWorld(Point2D pt) { |
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double x = bBoxWithoutRot.minX + ((pt.getX() * (bBoxWithoutRot.maxX - bBoxWithoutRot.minX)) / currentFullWidth);
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double y = bBoxWithoutRot.maxY - ((pt.getY() * (bBoxWithoutRot.maxY - bBoxWithoutRot.minY)) / currentFullHeight);
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Point2D ptRes = new Point2D.Double(x, y); |
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return ptRes;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.RasterDataset#getWindowRaster(double, double, double, double, org.gvsig.fmap.driver.BandList, org.gvsig.fmap.driver.IBuffer, boolean)
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*/
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public IBuffer getWindowRaster(double x, double y, double w, double h, BandList bandList, IBuffer rasterBuf, boolean adjustToExtent) { |
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//Si cojemos pixeles completos hemos de calcular las coordenadas reales de esos pixeles completos para hacer la petici?n.
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//Este el calculo que se hizo en RasterMultiDataset para calcular pixeles completos, convertir a pixel, redondear el primero
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//por abajo y el ultimo por arriba
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Point2D p1 = worldToRaster(new Point2D.Double(x, y)); |
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Point2D p2 = worldToRaster(new Point2D.Double(x + w, y - h)); |
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Point2D a = rasterToWorld(new Point2D.Double(Math.floor(p1.getX()), Math.floor(p1.getY()))); |
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Point2D b = rasterToWorld(new Point2D.Double(Math.ceil(p2.getX()), Math.ceil(p2.getY()))); |
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//Extent selectedExtent = new Extent(x, y, x + w, y - h);
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Extent selectedExtent = new Extent(a.getX(), a.getY(), b.getX(), b.getY());
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setView(selectedExtent); |
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int wPx = rasterBuf.getWidth();
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int hPx = rasterBuf.getHeight();
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int[] stpBuffer = new int[]{0, 0 , wPx, hPx}; |
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//TODO: FUNCIONALIDAD: Implementar adjustToExtent = false
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/*if(!adjustToExtent){
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int[] wh = calcStepBuffer(selectedExtent, wPx, hPx, stpBuffer);
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if(x < 0)
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x = 0;
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if(y < 0)
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y = 0;
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readData(buf, bandList, x, y, wh[0], wh[1], wh[0], wh[1], 0, 0, stpBuffer);
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return;
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}*/
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loadBuffer(selectedExtent, wPx, hPx, rasterBuf, bandList, stpBuffer); |
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return rasterBuf;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.RasterDataset#getWindowRaster(int, int, int, int, org.gvsig.fmap.driver.BandList, org.gvsig.fmap.driver.IBuffer)
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*/
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public IBuffer getWindowRaster(int x, int y, int w, int h, BandList bandList, IBuffer rasterBuf) { |
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Point2D init = this.rasterToWorld(new Point2D.Double(x, y)); |
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Point2D end = this.rasterToWorld(new Point2D.Double(x + w, y + h)); |
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Extent selectedExtent = new Extent(init.getX(), init.getY(), end.getX(), end.getY());
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setView(selectedExtent); |
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int[] stpBuffer = new int[]{0, 0 , w, h}; |
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loadBuffer(selectedExtent, w, h, rasterBuf, bandList, stpBuffer); |
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return rasterBuf;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.RasterDataset#getWindowRaster(double, double, double, double, int, int, org.gvsig.fmap.driver.BandList, org.gvsig.fmap.driver.IBuffer, boolean)
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*/
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public IBuffer getWindowRaster(double minX, double minY, double maxX, double maxY, int bufWidth, int bufHeight, BandList bandList, IBuffer rasterBuf, boolean adjustToExtent) { |
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Extent selectedExtent = new Extent(minX, maxY, maxX, minY);
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setView(selectedExtent); |
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int[] stpBuffer = new int[]{0, 0 , bufWidth, bufHeight}; |
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//TODO: FUNCIONALIDAD: Implementar adjustToExtent = false
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loadBuffer(selectedExtent, bufWidth, bufHeight, rasterBuf, bandList, stpBuffer); |
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return rasterBuf;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.fmap.driver.RasterDataset#getWindowRaster(int, int, int, int, int, int, org.gvsig.fmap.driver.BandList, org.gvsig.fmap.driver.IBuffer)
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*/
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public IBuffer getWindowRaster(int x, int y, int w, int h, int bufWidth, int bufHeight, BandList bandList, IBuffer rasterBuf) { |
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Point2D init = this.rasterToWorld(new Point2D.Double(x, y)); |
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Point2D end = this.rasterToWorld(new Point2D.Double(x + w, y + h)); |
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Extent selectedExtent = new Extent(init.getX(), init.getY(), end.getX(), end.getY());
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setView(selectedExtent); |
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int[] stpBuffer = new int[]{0, 0 , bufWidth, bufHeight}; |
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loadBuffer(selectedExtent, bufWidth, bufHeight, rasterBuf, bandList, stpBuffer); |
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return rasterBuf;
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} |
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/**
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* Carga el buffer con las bandas RGB del raster con los par?metros especificados de extensi?n
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* y tama?o de buffer. El problema de ecw es que solo podemos leer 3 bandas de una vez ya que solo disponemos
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* de una llamada readLineRGBA. Para leer m?s bandas tendremos que hacer multiples llamadas a setView para leer
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* 3 cada vez.
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*
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* Si por ejemplo tenemos un ecw de 6 bandas [0, 1, 2, 3, 4, 5] y queremos cargar un buffer con el siguiente orden
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* [0, -, 2, -, 4, -] La variable readBandsFromECW har? la llamada a setView con los valores [0, 2, 4, 0, 0, 0]. La
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* funci?n drawRGB ser? la encargada de hacer el switch para obtener [0, -, 2, -, 4, -].
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*
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* Bug#1: Si se dispone de un ecw de m?s de tres bandas podemos llamar a setView con readBandsFromECW con el orden
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* que queramos, por ejemplo [3, 2, 5, 1, 0] pero para ecw de 3 bandas la llamada con las bandas cambiadas no
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* hace caso. El caso de readBandsFromECW = [2, 0, 1] ser? tomado siempre como [0, 1, 2].
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*
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* @param selectedExtent Extensi?n seleccionada
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* @param bufWidth Ancho de buffer
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* @param bufHeight Alto de buffer
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* @param rasterBuf Buffer de datos
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*/
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private void loadBuffer(Extent selectedExtent, int bufWidth, int bufHeight, IBuffer rasterBuf, BandList bandList, int[] stpBuffer){ |
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try{
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//Leemos el raster desde la librer?a
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int[] readBandsFromECW = new int[file.numBands]; |
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int[] readBands = new int[file.numBands]; |
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for(int i = 0; i < readBandsFromECW.length; i ++) |
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readBands[i] = -1;
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int cont = 0; |
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for(int i = 0; i < file.numBands; i++){ |
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int[] bandsToDraw = bandList.getBand(i).getDataImageBandToDraw(); |
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if(bandsToDraw != null){ |
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for(int j = 0; j < bandsToDraw.length; j++){ |
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readBandsFromECW[cont] = i; |
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readBands[cont] = i; |
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cont ++; |
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} |
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} |
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} |
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file.setView(file.numBands, readBandsFromECW, selectedExtent.minX(), selectedExtent.maxY(), selectedExtent.maxX(), selectedExtent.minY(), bufWidth, bufHeight); |
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//Escribimos el raster sobre un IBuffer
|
| 392 |
int[] pRGBArray = new int[bufWidth]; |
| 393 |
drawRGB(rasterBuf, pRGBArray, readBands, bandList); |
| 394 |
|
| 395 |
}catch(JNCSInvalidSetViewException exc){
|
| 396 |
exc.printStackTrace(); |
| 397 |
}catch (JNCSFileNotOpenException e) {
|
| 398 |
e.printStackTrace(); |
| 399 |
}catch (JNCSException ex) {
|
| 400 |
ex.printStackTrace(); |
| 401 |
} |
| 402 |
|
| 403 |
} |
| 404 |
|
| 405 |
|
| 406 |
private void drawRGB(IBuffer rasterBuf, int[] pRGBArray, int[] readBands, BandList bandList)throws JNCSException{ |
| 407 |
byte data = 0; |
| 408 |
int bandR = readBands[0]; |
| 409 |
int bandG = (readBands.length > 1) ? readBands[1] : -1; |
| 410 |
int bandB = (readBands.length > 2) ? readBands[2] : -1; |
| 411 |
|
| 412 |
//********* caso especial que resuelve Bug#1 **********************
|
| 413 |
if(file.numBands == 3 && bandList.getDrawableBandsCount() < 3){ |
| 414 |
for(int i = 0; i < 3; i ++){ |
| 415 |
int[] b = bandList.getBand(i).getDataImageBandToDraw(); |
| 416 |
if(b != null){ |
| 417 |
bandG = 1; bandR = 0; bandB = 2; |
| 418 |
} |
| 419 |
} |
| 420 |
} |
| 421 |
if(file.numBands == 3 && bandR == bandG && bandG == bandB){ //caso especial que resuelve Bug#1 |
| 422 |
for(int i = 0; i < 3; i ++){ |
| 423 |
int[] b = bandList.getBand(i).getDataImageBandToDraw(); |
| 424 |
if(b != null){ |
| 425 |
if(i == 0){ |
| 426 |
for (int line = 0; line < rasterBuf.getHeight(); line++) { |
| 427 |
file.readLineRGBA(pRGBArray); |
| 428 |
for(int col = 0; col < pRGBArray.length; col ++){ |
| 429 |
rasterBuf.setElem(line, col, bandR, (byte)((pRGBArray[col] & 0x00ff0000) >> 16)); |
| 430 |
rasterBuf.setElem(line, col, bandG, (byte)((pRGBArray[col] & 0x00ff0000) >> 16)); |
| 431 |
rasterBuf.setElem(line, col, bandB, (byte)((pRGBArray[col] & 0x00ff0000) >> 16)); |
| 432 |
} |
| 433 |
} |
| 434 |
return;
|
| 435 |
} |
| 436 |
if(i == 1){ |
| 437 |
for (int line = 0; line < rasterBuf.getHeight(); line++) { |
| 438 |
file.readLineRGBA(pRGBArray); |
| 439 |
for(int col = 0; col < pRGBArray.length; col ++){ |
| 440 |
rasterBuf.setElem(line, col, bandR, (byte)((pRGBArray[col] & 0x0000ff00) >> 8)); |
| 441 |
rasterBuf.setElem(line, col, bandG, (byte)((pRGBArray[col] & 0x0000ff00) >> 8)); |
| 442 |
rasterBuf.setElem(line, col, bandB, (byte)((pRGBArray[col] & 0x0000ff00) >> 8)); |
| 443 |
} |
| 444 |
} |
| 445 |
return;
|
| 446 |
} |
| 447 |
if(i == 2){ |
| 448 |
for (int line = 0; line < rasterBuf.getHeight(); line++) { |
| 449 |
file.readLineRGBA(pRGBArray); |
| 450 |
for(int col = 0; col < pRGBArray.length; col ++){ |
| 451 |
rasterBuf.setElem(line, col, bandR, (byte)(pRGBArray[col] & 0x000000ff)); |
| 452 |
rasterBuf.setElem(line, col, bandG, (byte)(pRGBArray[col] & 0x000000ff)); |
| 453 |
rasterBuf.setElem(line, col, bandB, (byte)(pRGBArray[col] & 0x000000ff)); |
| 454 |
} |
| 455 |
} |
| 456 |
return;
|
| 457 |
} |
| 458 |
} |
| 459 |
} |
| 460 |
|
| 461 |
} |
| 462 |
//********* END caso especial que resuelve Bug#1 **********************
|
| 463 |
|
| 464 |
if(bandR >= 0 && bandG >= 0 && bandB >= 0){ |
| 465 |
for (int line = 0; line < rasterBuf.getHeight(); line++) { |
| 466 |
file.readLineRGBA(pRGBArray); |
| 467 |
for(int col = 0; col < pRGBArray.length; col ++){ |
| 468 |
rasterBuf.setElem(line, col, bandR, (byte)((pRGBArray[col] & 0x00ff0000) >> 16)); |
| 469 |
rasterBuf.setElem(line, col, bandG, (byte)((pRGBArray[col] & 0x0000ff00) >> 8)); |
| 470 |
rasterBuf.setElem(line, col, bandB, (byte)(pRGBArray[col] & 0x000000ff)); |
| 471 |
} |
| 472 |
} |
| 473 |
return;
|
| 474 |
} |
| 475 |
|
| 476 |
if(bandR >= 0 && bandG >= 0){ |
| 477 |
for (int line = 0; line < rasterBuf.getHeight(); line++) { |
| 478 |
file.readLineRGBA(pRGBArray); |
| 479 |
for(int col = 0; col < pRGBArray.length; col ++){ |
| 480 |
rasterBuf.setElem(line, col, bandR, (byte)((pRGBArray[col] & 0x00ff0000) >> 16)); |
| 481 |
rasterBuf.setElem(line, col, bandG, (byte)((pRGBArray[col] & 0x0000ff00) >> 8)); |
| 482 |
} |
| 483 |
} |
| 484 |
return;
|
| 485 |
} |
| 486 |
|
| 487 |
if(bandR >= 0){ |
| 488 |
for (int line = 0; line < rasterBuf.getHeight(); line++) { |
| 489 |
file.readLineRGBA(pRGBArray); |
| 490 |
for(int col = 0; col < pRGBArray.length; col ++) |
| 491 |
rasterBuf.setElem(line, col, bandR, (byte)((pRGBArray[col] & 0x00ff0000) >> 16)); |
| 492 |
} |
| 493 |
return;
|
| 494 |
} |
| 495 |
|
| 496 |
} |
| 497 |
|
| 498 |
public void reProject(ICoordTrans rp) { |
| 499 |
} |
| 500 |
|
| 501 |
public void setExtentTransform(double originX, double originY, double psX, double psY) { |
| 502 |
} |
| 503 |
|
| 504 |
public int getBlockSize() { |
| 505 |
return 0; |
| 506 |
} |
| 507 |
|
| 508 |
/*
|
| 509 |
* (non-Javadoc)
|
| 510 |
* @see org.gvsig.raster.driver.RasterDataset#readCompletetLine(int, int)
|
| 511 |
*/
|
| 512 |
public Object readCompletetLine(int line, int band) throws InvalidSetViewException, FileNotOpenException, RasterDriverException { |
| 513 |
if(line < 0 || line >= file.height || band < 0 || band >= getBandCount()) |
| 514 |
throw new InvalidSetViewException("Request out of grid"); |
| 515 |
|
| 516 |
Point2D begin = rasterToWorld(new Point2D.Double(0, line)); |
| 517 |
Point2D end = rasterToWorld(new Point2D.Double(file.width, line + 1)); |
| 518 |
int[] readBandsFromECW = new int[file.numBands]; |
| 519 |
if(file.numBands <= 3) { |
| 520 |
for(int i = 0; i < file.numBands; i++) |
| 521 |
readBandsFromECW[i] = i; |
| 522 |
}else {
|
| 523 |
readBandsFromECW[0] = band;
|
| 524 |
} |
| 525 |
|
| 526 |
Extent e = new Extent(begin.getX(), begin.getY(), end.getX(), end.getY());
|
| 527 |
|
| 528 |
try {
|
| 529 |
int[] value = new int[file.width]; |
| 530 |
file.setView(file.numBands, readBandsFromECW, e.minX(), e.maxY(), e.maxX(), e.minY(), file.width, 1);
|
| 531 |
file.readLineRGBA(value); |
| 532 |
|
| 533 |
if(file.numBands <= 3) { |
| 534 |
switch(getDataType()) {
|
| 535 |
case IBuffer.TYPE_BYTE: byte[] b = new byte[file.width]; |
| 536 |
switch(band) {
|
| 537 |
case 0: for(int i = 0; i < file.width; i ++) |
| 538 |
b[i] = (byte)(((value[i] & 0x00ff0000) >> 16) & 0xff); |
| 539 |
break;
|
| 540 |
case 1: for(int i = 0; i < file.width; i ++) |
| 541 |
b[i] = (byte)(((value[i] & 0x0000ff00) >> 8) & 0xff); |
| 542 |
break;
|
| 543 |
case 2: for(int i = 0; i < file.width; i ++) |
| 544 |
b[i] = (byte)((value[i] & 0x000000ff) & 0xff); |
| 545 |
break;
|
| 546 |
} |
| 547 |
return b;
|
| 548 |
} |
| 549 |
}else {
|
| 550 |
switch(getDataType()) {
|
| 551 |
case IBuffer.TYPE_BYTE: byte[] b = new byte[file.width]; |
| 552 |
for(int i = 0; i < file.width; i ++) |
| 553 |
b[i] = (byte)(((value[i] & 0x00ff0000) >> 16) & 0xff); |
| 554 |
break;
|
| 555 |
} |
| 556 |
} |
| 557 |
//TODO: FUNCIONALIDAD: Ecw con otro tipo de dato != Byte
|
| 558 |
} catch (JNCSFileNotOpenException e1) {
|
| 559 |
throw new FileNotOpenException("Error en jecw: JNCSFileNotOpenException"); |
| 560 |
} catch (JNCSInvalidSetViewException e1) {
|
| 561 |
throw new FileNotOpenException("Error en jecw: JNCSInvalidSetViewException"); |
| 562 |
} catch (JNCSException e1) {
|
| 563 |
throw new RasterDriverException("Error la lectura de datos ecw"); |
| 564 |
} |
| 565 |
|
| 566 |
return null; |
| 567 |
} |
| 568 |
|
| 569 |
/*
|
| 570 |
* (non-Javadoc)
|
| 571 |
* @see org.gvsig.raster.driver.RasterDataset#getData(int, int, int)
|
| 572 |
*/
|
| 573 |
public Object getData(int x, int y, int band)throws InvalidSetViewException, FileNotOpenException, RasterDriverException { |
| 574 |
if(x < 0 || y < 0 || x >= file.width || y >= file.height) |
| 575 |
throw new InvalidSetViewException("Request out of grid"); |
| 576 |
|
| 577 |
Point2D begin = rasterToWorld(new Point2D.Double(x, y)); |
| 578 |
Point2D end = rasterToWorld(new Point2D.Double(x + 1, y + 1)); |
| 579 |
int[] readBandsFromECW = new int[file.numBands]; |
| 580 |
if(file.numBands <= 3){ |
| 581 |
for(int i = 0; i < file.numBands; i++) |
| 582 |
readBandsFromECW[i] = i; |
| 583 |
}else{
|
| 584 |
readBandsFromECW[0] = band;
|
| 585 |
} |
| 586 |
|
| 587 |
Extent e = new Extent(begin.getX(), begin.getY(), end.getX(), end.getY());
|
| 588 |
try {
|
| 589 |
int[] value = new int[1]; |
| 590 |
file.setView(file.numBands, readBandsFromECW, e.minX(), e.maxY(), e.maxX(), e.minY(), 1, 1); |
| 591 |
file.readLineRGBA(value); |
| 592 |
if(file.numBands <= 3){ |
| 593 |
switch(band){
|
| 594 |
case 0: return new Integer((((value[0] & 0x00ff0000) >> 16) & 0xffffffff)); |
| 595 |
case 1: return new Integer((((value[0] & 0x0000ff00) >> 8) & 0xffffffff)); |
| 596 |
case 2: return new Integer((((value[0] & 0x000000ff)) & 0xffffffff)); |
| 597 |
} |
| 598 |
} |
| 599 |
return new Integer((((value[0] & 0x00ff0000) >> 16) & 0xffffffff)); |
| 600 |
} catch (JNCSFileNotOpenException e1) {
|
| 601 |
throw new FileNotOpenException("Error en jecw: JNCSFileNotOpenException"); |
| 602 |
} catch (JNCSInvalidSetViewException e1) {
|
| 603 |
throw new FileNotOpenException("Error en jecw: JNCSInvalidSetViewException"); |
| 604 |
} catch (JNCSException e1) {
|
| 605 |
throw new RasterDriverException("Error reading ecw data"); |
| 606 |
} |
| 607 |
} |
| 608 |
|
| 609 |
public void refreshUpdate(int arg0, int arg1, double arg2, double arg3, double arg4, double arg5) { |
| 610 |
} |
| 611 |
|
| 612 |
public void refreshUpdate(int arg0, int arg1, int arg2, int arg3, int arg4, int arg5) { |
| 613 |
} |
| 614 |
|
| 615 |
/*
|
| 616 |
* (non-Javadoc)
|
| 617 |
* @see org.gvsig.raster.driver.GeoData#getStringProjection()
|
| 618 |
*/
|
| 619 |
public String getStringProjection() throws RasterDriverException{ |
| 620 |
return file.projection;
|
| 621 |
} |
| 622 |
|
| 623 |
} |
| 624 |
|
| 625 |
|
| 626 |
|