svn-gvsig-desktop / tags / v1_1_Build_1014 / libraries / libCq_CMS_praster / src / org / cresques / io / EcwFile.java @ 13593
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/*
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* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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*
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* Copyright (C) 2004-5.
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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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* For more information, contact:
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*
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* cresques@gmail.com
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*/
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package org.cresques.io; |
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import java.awt.Dimension; |
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import java.awt.Image; |
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import java.awt.Point; |
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import java.awt.geom.Point2D; |
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import java.awt.image.BufferedImage; |
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import java.awt.image.PixelGrabber; |
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import org.cresques.cts.ICoordTrans; |
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import org.cresques.cts.IProjection; |
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import org.cresques.io.data.BandList; |
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import org.cresques.io.data.RasterBuf; |
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import org.cresques.io.exceptions.SupersamplingNotSupportedException; |
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import org.cresques.px.Extent; |
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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 com.ermapper.util.JNCSDatasetPoint; |
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import com.ermapper.util.JNCSWorldPoint; |
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/**
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* Soporte para los ficheros .ecw de ErMapper.
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* <br>
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* NOTA: El SDK que ermapper ha puesto a disposici?n del p?blico en java
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* es una versi?n 2.45, de 19/11/2001. Est? implementada usando JNI que
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* se apoya en tres librer?as din?micas (dll), y presenta deficiencias
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* muy graves a la hora de acceder a la informaci?n. Hasta el momento
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* hemos detectado 3 de ellas:<BR>
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* 1?.- No soporta ampliaciones superiores a 1:1. si se intenta acceder
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* a un ecw con un zoom mayor da una excepci?n del tipo
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* com.ermapper.ecw.JNCSInvalidSetViewException, que de no ser tenida encuenta
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* acaba tirando abajo la m?quina virtual de java.<BR>
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* 2?.- La longitud m?xima de l?nea que adminte el m?todo readLineRGBA es
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* de unos 2500 pixeles, lo que hace el uso para la impresi?n en formatos
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* superiorea a A4 a 300 ppp o m?s inviable.<BR>
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* 3?.- La actualizaci?n progresiva usando el interface JNCSProgressiveUpdate
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* con el JNCSFile hace que el equipo genere un error severo y se apague. Este
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* error imposibilita esta t?cnica de acceso a ECW.<BR>
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* <br>
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* Para saltarnos la limitaci?n del bug#1 pedimos la ventana correspondiente al zoom 1:1 para
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* el view que nos han puesto, y la resizeamos al tama?o que nos pide el usuario.<br>
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* Como consecuencia del bug#2, para tama?os de ventana muy grandes (los necesarios
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* para imprimir a m?s de A4 a 300DPI), hay que hacer varias llamadas al fichero con
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* varios marcos contiguos, y los devolvemos 'pegados' en una sola imagen (esto se
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* realiza de manera transparente para el usuario dentro de la llamada a updateImage.<br>
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*
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* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
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*/
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public class EcwFile extends GeoRasterFile implements JNCSProgressiveUpdate { |
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//Lleva la cuenta del n?mero de actualizaciones que se hace de una imagen que corresponde con el
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//n?mero de bandas que tiene. Esto es necesario ya que si una imagen tiene el mustResize a
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//true solo debe llamar a la funci?n resizeImage al actualizar la ?ltima banda, sino al hacer
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//un zoom menor que 1:1 se veria mal
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private static int nUpdate = 0; |
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private JNCSFile file = null; |
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private boolean bErrorOnOpen = false; |
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private String errorMessage = null; |
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private boolean multifile = false; |
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private Extent v = null; |
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// Ultimo porcentaje de refresco. Se carga en el update y se
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// actualiza en el refreshUpdate
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private int lastRefreshPercent = 0; |
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public EcwFile(IProjection proj, String fName) { |
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super(proj, null); |
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fName = DataSource.normalize(fName);
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super.setName(fName);
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extent = new Extent();
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try {
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System.err.println("Abriendo "+fName); |
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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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if ( bandCount > 2) { |
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setBand(RED_BAND, 0);
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setBand(GREEN_BAND, 1);
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setBand(BLUE_BAND, 2);
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} else
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setBand(RED_BAND|GREEN_BAND|BLUE_BAND, 0);
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} catch (Exception e) { |
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bErrorOnOpen = true;
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errorMessage = e.getMessage(); |
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System.err.println(errorMessage);
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e.printStackTrace(); |
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} |
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} |
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/**
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* Carga un ECW.
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*
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* @param fname
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*/
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public GeoFile 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 - 1) * file.cellIncrementX); |
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minY = file.originY + |
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((double) (file.height - 1) * file.cellIncrementY); |
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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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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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* 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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*
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*/
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public void setMultifile(boolean mult) { |
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this.multifile = mult;
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} |
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public void setView(Extent e) { |
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//Aplicamos la transformaci?n a la vista en caso de que haya un fichero .rmf
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/*
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if(file.cellIncrementY > 0)
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file.cellIncrementY = -file.cellIncrementY;
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if(minX < file.originX)
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minX = file.originX;
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if(maxY > file.originY)
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maxY = file.originY;
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if(maxX > (file.originX + ((double) (file.width - 1) * file.cellIncrementX)))
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maxX = file.originX + ((double) (file.width - 1) * file.cellIncrementX);
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if(minY < file.originY + ((double) (file.height - 1) * file.cellIncrementY))
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minY = file.originY + ((double) (file.height - 1) * file.cellIncrementY);
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Extent transformView = new Extent( minX, minY, maxX, maxY );*/
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v = new Extent(e);
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} |
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public Extent getView() {
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return v;
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} |
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private void setFileView(int numBands, int [] bandList, ChunkFrame f) |
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throws JNCSFileNotOpenException, JNCSInvalidSetViewException {
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file.setView(file.numBands, bandList, f.v.minX(), f.v.maxY(), f.v.maxX(), f.v.minY(), f.width, f.height); |
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} |
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/**
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* Obtiene un trozo de imagen (determinado por la vista y los par?metros.
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*
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* @param width
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* @param height
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*/
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public synchronized Image updateImage(int width, int height, ICoordTrans rp) { |
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// TODO reproyectar para devolver el trozo de imagen pedida sobre ...
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// la proyecci?n de destino.
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int line = 0; |
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boolean mustResize = false; |
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Dimension fullSize = null; |
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Image ecwImage = null; |
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if (file == null) { |
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return ecwImage;
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} |
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try {
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int[] bandlist; |
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int[] bandListTriband; |
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int[] pRGBArray = null; |
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if(mustVerifySize()){
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// Work out the correct aspect for the setView call.
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double dFileAspect = (double) v.width() / (double) v.height(); |
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double dWindowAspect = (double) width / (double) height; |
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if (dFileAspect > dWindowAspect) {
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height = (int) ((double) width / dFileAspect); |
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} else {
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width = (int) ((double) height * dFileAspect); |
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} |
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} |
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fullSize = new Dimension(width, height); |
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//System.out.println("fullSize = ("+width+","+height+")");
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// Peta en los peque?os ... arreglar antes de meter del todo
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ChunkFrame[] frames = ChunkFrame.computeFrames(file, v, fullSize, extent);
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if (frames.length == 1) { |
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width = frames[0].width;
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height = frames[0].height;
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if (width <= 0) { |
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width = 1;
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} |
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if (height <= 0) { |
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height = 1;
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} |
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} |
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/* JNCSDatasetPoint ptMin = file.convertWorldToDataset(v.minX(), v.minY());
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JNCSDatasetPoint ptMax = file.convertWorldToDataset(v.maxX(), v.maxY());
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System.out.println("Dataset coords Width = "+(ptMax.x-ptMin.x)+", px width ="+width);
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// BEGIN Cambiando para soportar e < 1:1
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// TODO Mejorarlo para que los PAN con un zoom muy grande sean correctos
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if ((ptMax.x-ptMin.x)<width) {
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width = ptMax.x-ptMin.x;
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height = ptMin.y-ptMax.y;
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System.out.println("Size=("+width+","+height+")");
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mustResize = true;
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}*/
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// Create an image of the ecw file.
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if (doTransparency) {
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ecwImage = new BufferedImage(width, height, |
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BufferedImage.TYPE_INT_ARGB);
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} else {
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ecwImage = new BufferedImage(width, height, |
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BufferedImage.TYPE_INT_RGB);
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} |
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pRGBArray = new int[width]; |
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// Setup the view parameters for the ecw file.
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bandlist = new int[bandCount]; |
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bandListTriband = new int[bandCount]; |
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if (bandCount > 2) { |
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bandlist[0] = getBand(RED_BAND);
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bandlist[1] = getBand(GREEN_BAND);
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bandlist[2] = getBand(BLUE_BAND);
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if (bandCount > 3) { |
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for (int i = 3; i < bandCount; i++) { |
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bandlist[i] = 0;
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} |
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} |
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} else {
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for (int i = 0; i < bandCount; i++) { |
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bandlist[i] = i; |
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} |
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} |
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if (bandCount == 3) { |
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bandListTriband[0] = 0; |
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bandListTriband[1] = 1; |
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bandListTriband[2] = 2; |
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} |
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for (int nChunk = 0; nChunk < frames.length; nChunk++) { |
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ChunkFrame f = frames[nChunk]; |
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// Set the view
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if (bandCount != 3) { |
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setFileView(file.numBands, bandlist, f); |
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} else {
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setFileView(file.numBands, bandListTriband, f); |
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} |
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/*
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* Esta peli es porque el Ecw no intercambia las bandas con lo que me toca hacerlo
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* a mano. Primero detectamos si se ha alterado el orden de las mismas. Si es as?
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* calculamos mascaras y desplazamientos y hacemos una copia en pRGBArrayCopy
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* con las bandas alteradas de orden
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*/
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int[] pRGBArrayCopy = null; |
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int[] mascara = new int[3]; |
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int[] shl = new int[3]; |
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int[] shr = new int[3]; |
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boolean order = true; |
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if (bandCount == 3) { |
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for (int i = 0; i < bandCount; i++) |
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if (bandlist[i] != i) {
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order = false;
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} |
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if (!order) {
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for (int i = 0; i < bandCount; i++) { |
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switch (bandlist[i]) {
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case 0: |
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mascara[i] = 0x00ff0000;
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break;
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case 1: |
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mascara[i] = 0x0000ff00;
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break;
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case 2: |
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mascara[i] = 0x000000ff;
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break;
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} |
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if ((i == 1) && (bandlist[i] == 0)) |
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shr[i] = 8;
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if ((i == 2) && (bandlist[i] == 0)) |
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shr[i] = 16;
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if ((i == 0) && (bandlist[i] == 1)) |
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shl[i] = 8;
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if ((i == 2) && (bandlist[i] == 1)) |
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shr[i] = 8;
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if ((i == 0) && (bandlist[i] == 2)) |
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shl[i] = 16;
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if ((i == 1) && (bandlist[i] == 2)) |
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shl[i] = 8;
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} |
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} |
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} |
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// Read the scan lines
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for (line = 0; line < f.height; line++) { |
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file.readLineRGBA(pRGBArray); |
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if ((bandCount == 3) && !order) { |
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pRGBArrayCopy = new int[pRGBArray.length]; |
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for (int i = 0; i < pRGBArray.length; i++) { |
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pRGBArrayCopy[i] = (pRGBArray[i] & 0xff000000) +
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(((pRGBArray[i] & mascara[2]) << shl[2]) >> shr[2]) + |
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(((pRGBArray[i] & mascara[1]) << shl[1]) >> shr[1]) + |
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(((pRGBArray[i] & mascara[0]) << shl[0]) >> shr[0]); |
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} |
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pRGBArray = pRGBArrayCopy; |
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} |
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// Prueba de sustituci?n de color transparente
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if (doTransparency) {
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if (line == 0) { |
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tFilter.debug = true;
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} |
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tFilter.filterLine(pRGBArray); |
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tFilter.debug = false;
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} |
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((BufferedImage) ecwImage).setRGB(f.pos.x, f.pos.y + line,
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f.width, 1, pRGBArray, 0, |
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f.width); |
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} |
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} |
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if (frames[0].mustResize) { |
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//System.out.println("resize "+fullSize);
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return resizeImage(fullSize, ecwImage);
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} |
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/*
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* La excepci?n atrapada es la de 'zoom > 1:1 no valido'
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} catch (com.ermapper.ecw.JNCSInvalidSetViewException e) {
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System.err.println(errorMessage);
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e.printStackTrace(); */
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} catch (com.ermapper.ecw.JNCSException e) { //java.lang.ArrayIndexOutOfBoundsException: |
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bErrorOnOpen = true;
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System.err.println("EcwFile JNCS Error en la l?nea " + line + "/" + |
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height); |
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System.err.println(e.getMessage());
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e.printStackTrace(); |
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} catch (java.lang.ArrayIndexOutOfBoundsException e) { //: |
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bErrorOnOpen = true;
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System.err.println("EcwFile ArrayIndex Error en la l?nea " + line + |
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"/" + height);
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System.err.println(e.getMessage());
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e.printStackTrace(); |
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} catch (Exception e) { |
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bErrorOnOpen = true;
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errorMessage = e.getMessage(); |
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// g.drawString(errorMessage, 0, 50);
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System.err.println(errorMessage);
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e.printStackTrace(); |
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} |
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lastRefreshPercent = file.getPercentComplete(); |
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System.out.println("Leido al " + lastRefreshPercent + " %."); |
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return ecwImage;
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} |
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/**
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* Redimensionado de imagen
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* La funci?n getScaledInstance nos devuelve un tipo image que no sirve por lo que
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* habr? que crear buffImg como BufferedImage y copiar los datos devueltos por esta
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* funci?n a este que es el que ser? devuelto por la funci?n
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* @param sz
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* @param image Image de entrada
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* @return Imagen reescalada
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*/
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private Image resizeImage(Dimension sz, Image image) { |
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Image buffImg = null; |
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Image img = image.getScaledInstance((int) sz.getWidth(), |
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(int) sz.getHeight(),
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Image.SCALE_SMOOTH);
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//Todo este pollo es para copiar el tipo image devuelto a BufferedImage
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buffImg = new BufferedImage(img.getWidth(null), img.getHeight(null), |
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BufferedImage.TYPE_INT_ARGB);
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|
| 449 |
int[] pixels = new int[img.getWidth(null) * img.getHeight(null)]; |
| 450 |
PixelGrabber pg = new PixelGrabber(img, 0, 0, img.getWidth(null), |
| 451 |
img.getHeight(null), pixels, 0, |
| 452 |
img.getWidth(null));
|
| 453 |
|
| 454 |
try {
|
| 455 |
pg.grabPixels(); |
| 456 |
} catch (InterruptedException e) { |
| 457 |
e.printStackTrace(); |
| 458 |
} |
| 459 |
|
| 460 |
for (int j = 0; j < buffImg.getHeight(null); j++) { |
| 461 |
for (int i = 0; i < buffImg.getWidth(null); i++) { |
| 462 |
((BufferedImage) buffImg).setRGB(i, j,
|
| 463 |
pixels[(j * buffImg.getWidth(null)) +
|
| 464 |
i]); |
| 465 |
} |
| 466 |
} |
| 467 |
|
| 468 |
return buffImg;
|
| 469 |
} |
| 470 |
|
| 471 |
/**
|
| 472 |
* Reproyecta el raster.
|
| 473 |
*/
|
| 474 |
public void reProject(ICoordTrans rp) { |
| 475 |
// TODO metodo reProject pendiente de implementar
|
| 476 |
} |
| 477 |
|
| 478 |
/**
|
| 479 |
* Soporte para actualizaci?n de la imagen
|
| 480 |
* @see com.ermapper.ecw.JNCSProgressiveUpdate#refreshUpdate(int, int, double, double, double, double)
|
| 481 |
*/
|
| 482 |
public void refreshUpdate(int nWidth, int nHeight, double dWorldTLX, |
| 483 |
double dWorldTLY, double dWorldBRX, |
| 484 |
double dWorldBRY) {
|
| 485 |
int completado = file.getPercentComplete();
|
| 486 |
System.out.println("EcwFile: se actualiza 1: " + completado + |
| 487 |
" % completado");
|
| 488 |
|
| 489 |
if ((updatable != null) && (lastRefreshPercent < 100)) { |
| 490 |
if (((completado - lastRefreshPercent) > 25) || |
| 491 |
(completado == 100)) {
|
| 492 |
lastRefreshPercent = file.getPercentComplete(); |
| 493 |
updatable.repaint(); |
| 494 |
} |
| 495 |
} |
| 496 |
} |
| 497 |
|
| 498 |
public void refreshUpdate(int nWidth, int nHeight, int dDatasetTLX, |
| 499 |
int dDatasetTLY, int dDatasetBRX, int dDatasetBRY) { |
| 500 |
System.out.println("EcwFile: se actualiza 2"); |
| 501 |
} |
| 502 |
|
| 503 |
/**
|
| 504 |
* Esta funci?n es porque el Ecw no intercambia las bandas con lo que me toca hacerlo
|
| 505 |
* a mano. Primero detectamos si se ha alterado el orden de las mismas. Si es as?
|
| 506 |
* calculamos mascaras y desplazamientos y hacemos una copia en pRGBArrayCopy
|
| 507 |
* con las bandas alteradas de orden
|
| 508 |
* @param bandList lista de bandas
|
| 509 |
* @param mask mascara
|
| 510 |
* @param shl desplazamiento izquierda
|
| 511 |
* @param shr desplazamiento derecha
|
| 512 |
*/
|
| 513 |
private boolean calcMaskAndShift(int[] bandList, int[] mask, int[] shl, |
| 514 |
int[] shr) { |
| 515 |
boolean order = true; |
| 516 |
|
| 517 |
if (bandCount == 3) { |
| 518 |
for (int i = 0; i < bandCount; i++) |
| 519 |
if (bandList[i] != i) {
|
| 520 |
order = false;
|
| 521 |
} |
| 522 |
|
| 523 |
if (!order) {
|
| 524 |
for (int i = 0; i < bandCount; i++) { |
| 525 |
switch (bandList[i]) {
|
| 526 |
case 0: |
| 527 |
mask[i] = 0x00ff0000;
|
| 528 |
break;
|
| 529 |
case 1: |
| 530 |
mask[i] = 0x0000ff00;
|
| 531 |
break;
|
| 532 |
case 2: |
| 533 |
mask[i] = 0x000000ff;
|
| 534 |
break;
|
| 535 |
} |
| 536 |
|
| 537 |
if ((i == 1) && (bandList[i] == 0)) |
| 538 |
shr[i] = 8;
|
| 539 |
if ((i == 2) && (bandList[i] == 0)) |
| 540 |
shr[i] = 16;
|
| 541 |
if ((i == 0) && (bandList[i] == 1)) |
| 542 |
shl[i] = 8;
|
| 543 |
if ((i == 2) && (bandList[i] == 1)) |
| 544 |
shr[i] = 8;
|
| 545 |
if ((i == 0) && (bandList[i] == 2)) |
| 546 |
shl[i] = 16;
|
| 547 |
if ((i == 1) && (bandList[i] == 2)) |
| 548 |
shl[i] = 8;
|
| 549 |
} |
| 550 |
} |
| 551 |
} |
| 552 |
|
| 553 |
return order;
|
| 554 |
} |
| 555 |
|
| 556 |
/**
|
| 557 |
* Intercambio de bandas para ecw manual. Se le pasa el array de bytes que se desea intercambiar
|
| 558 |
* la mascara y desplazamientos previamente calculados con calcMaskAndShift
|
| 559 |
* @param order true si el orden de las bandas no est? alterado y false si lo est?
|
| 560 |
* @param pRGBArray array de
|
| 561 |
* @param mascara
|
| 562 |
* @param shl desplazamiento a izquierda
|
| 563 |
* @param shr desplazamiento a derecha
|
| 564 |
* @return array con las bandas cambiadas
|
| 565 |
*/
|
| 566 |
private int[] changeBands(boolean order, int[] pRGBArray, int[] mascara, |
| 567 |
int[] shl, int[] shr) { |
| 568 |
if ((bandCount == 3) && !order) { |
| 569 |
int[] pRGBArrayCopy = new int[pRGBArray.length]; |
| 570 |
|
| 571 |
for (int i = 0; i < pRGBArray.length; i++) { |
| 572 |
pRGBArrayCopy[i] = (pRGBArray[i] & 0xff000000) +
|
| 573 |
(((pRGBArray[i] & mascara[2]) << shl[2]) >> shr[2]) + |
| 574 |
(((pRGBArray[i] & mascara[1]) << shl[1]) >> shr[1]) + |
| 575 |
(((pRGBArray[i] & mascara[0]) << shl[0]) >> shr[0]); |
| 576 |
} |
| 577 |
|
| 578 |
return pRGBArrayCopy;
|
| 579 |
} |
| 580 |
|
| 581 |
return pRGBArray;
|
| 582 |
} |
| 583 |
|
| 584 |
/**
|
| 585 |
* Asigna al objeto Image los valores con los dato de la imagen contenidos en el
|
| 586 |
* vector de enteros.
|
| 587 |
* @param image imagen con los datos actuales
|
| 588 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
| 589 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
| 590 |
* @param w Ancho de la imagen
|
| 591 |
* @param h Alto de la imagen
|
| 592 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
| 593 |
* @param offset desplazamiento
|
| 594 |
* @param scansize tama?o de imagen recorrida por cada p
|
| 595 |
*/
|
| 596 |
protected void setRGBLine(BufferedImage image, int startX, int startY, |
| 597 |
int w, int h, int[] rgbArray, int offset, |
| 598 |
int scansize) {
|
| 599 |
image.setRGB(startX, startY, w, h, rgbArray, offset, scansize); |
| 600 |
} |
| 601 |
|
| 602 |
/**
|
| 603 |
* Asigna al objeto Image la mezcla entre los valores que ya tiene y los valores
|
| 604 |
* con los dato de la imagen contenidos en el vector de enteros. De los valores RGB
|
| 605 |
* que ya contiene se mantienen las bandas que no coinciden con el valor de flags. La
|
| 606 |
* banda correspondiente a flags es sustituida por los datos del vector.
|
| 607 |
* @param image imagen con los datos actuales
|
| 608 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
| 609 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
| 610 |
* @param w Ancho de la imagen
|
| 611 |
* @param h Alto de la imagen
|
| 612 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
| 613 |
* @param offset desplazamiento
|
| 614 |
* @param scansize tama?o de imagen recorrida por cada paso
|
| 615 |
* @param flags banda que se va a sustituir (Ctes de GeoRasterFile)
|
| 616 |
*/
|
| 617 |
protected void setRGBLine(BufferedImage image, int startX, int startY, |
| 618 |
int w, int h, int[] rgbArray, int offset, |
| 619 |
int scansize, int flags) { |
| 620 |
int[] line = new int[rgbArray.length]; |
| 621 |
image.getRGB(startX, startY, w, h, line, offset, scansize); |
| 622 |
|
| 623 |
if (flags == GeoRasterFile.RED_BAND) {
|
| 624 |
for (int i = 0; i < line.length; i++) |
| 625 |
line[i] = (line[i] & 0x0000ffff) | (rgbArray[i] & 0xffff0000); |
| 626 |
} else if (flags == GeoRasterFile.GREEN_BAND) { |
| 627 |
for (int i = 0; i < line.length; i++) |
| 628 |
line[i] = (line[i] & 0x00ff00ff) | (rgbArray[i] & 0xff00ff00); |
| 629 |
} else if (flags == GeoRasterFile.BLUE_BAND) { |
| 630 |
for (int i = 0; i < line.length; i++) |
| 631 |
line[i] = (line[i] & 0x00ffff00) | (rgbArray[i] & 0xff0000ff); |
| 632 |
} |
| 633 |
|
| 634 |
image.setRGB(startX, startY, w, h, line, offset, scansize); |
| 635 |
} |
| 636 |
|
| 637 |
/**
|
| 638 |
* Asigna al objeto Image la mezcla entre los valores que ya tiene y los valores
|
| 639 |
* con los dato de la imagen contenidos en el vector de enteros. De los valores RGB
|
| 640 |
* que ya contiene se mantienen las bandas que no coinciden con el valor de flags. La
|
| 641 |
* banda correspondiente a flags es sustituida por los datos del vector.
|
| 642 |
* @param image imagen con los datos actuales
|
| 643 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
| 644 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
| 645 |
* @param w Ancho de la imagen
|
| 646 |
* @param h Alto de la imagen
|
| 647 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
| 648 |
* @param offset desplazamiento
|
| 649 |
* @param scansize tama?o de imagen recorrida por cada paso
|
| 650 |
* @param origBand Banda origen del GeoRasterFile
|
| 651 |
* @param destBandFlag banda que se va a sustituir (Ctes de GeoRasterFile)
|
| 652 |
*/
|
| 653 |
protected void setRGBLine(BufferedImage image, int startX, int startY, |
| 654 |
int w, int h, int[] rgbArray, int offset, |
| 655 |
int scansize, int origBand, int destBandFlag) { |
| 656 |
int[] line = new int[rgbArray.length]; |
| 657 |
image.getRGB(startX, startY, w, h, line, offset, scansize); |
| 658 |
|
| 659 |
if ((origBand == 0) && (destBandFlag == GeoRasterFile.RED_BAND)) { |
| 660 |
for (int i = 0; i < line.length; i++) |
| 661 |
line[i] = (line[i] & 0xff00ffff) | (rgbArray[i] & 0x00ff0000); |
| 662 |
} else if ((origBand == 1) && |
| 663 |
(destBandFlag == GeoRasterFile.GREEN_BAND)) {
|
| 664 |
for (int i = 0; i < line.length; i++) |
| 665 |
line[i] = (line[i] & 0xffff00ff) | (rgbArray[i] & 0x0000ff00); |
| 666 |
} else if ((origBand == 2) && |
| 667 |
(destBandFlag == GeoRasterFile.BLUE_BAND)) {
|
| 668 |
for (int i = 0; i < line.length; i++) |
| 669 |
line[i] = (line[i] & 0xffffff00) | (rgbArray[i] & 0x000000ff); |
| 670 |
} |
| 671 |
else if ((origBand == 0) && (destBandFlag == GeoRasterFile.GREEN_BAND)) { |
| 672 |
for (int i = 0; i < line.length; i++) |
| 673 |
line[i] = (line[i] & 0xffff00ff) |
|
| 674 |
((rgbArray[i] & 0x00ff0000) >> 8); |
| 675 |
} else if ((origBand == 0) && |
| 676 |
(destBandFlag == GeoRasterFile.BLUE_BAND)) {
|
| 677 |
for (int i = 0; i < line.length; i++) |
| 678 |
line[i] = (line[i] & 0xffffff00) |
|
| 679 |
((rgbArray[i] & 0x00ff0000) >> 16); |
| 680 |
} |
| 681 |
else if ((origBand == 1) && (destBandFlag == GeoRasterFile.RED_BAND)) { |
| 682 |
for (int i = 0; i < line.length; i++) |
| 683 |
line[i] = (line[i] & 0xff00ffff) |
|
| 684 |
((rgbArray[i] & 0x0000ff00) << 8); |
| 685 |
} else if ((origBand == 1) && |
| 686 |
(destBandFlag == GeoRasterFile.BLUE_BAND)) {
|
| 687 |
for (int i = 0; i < line.length; i++) |
| 688 |
line[i] = (line[i] & 0xffffff00) |
|
| 689 |
((rgbArray[i] & 0x0000ff00) >> 8); |
| 690 |
} |
| 691 |
else if ((origBand == 2) && (destBandFlag == GeoRasterFile.RED_BAND)) { |
| 692 |
for (int i = 0; i < line.length; i++) |
| 693 |
line[i] = (line[i] & 0xff00ffff) |
|
| 694 |
((rgbArray[i] & 0x000000ff) << 16); |
| 695 |
} else if ((origBand == 2) && |
| 696 |
(destBandFlag == GeoRasterFile.GREEN_BAND)) {
|
| 697 |
for (int i = 0; i < line.length; i++) |
| 698 |
line[i] = (line[i] & 0xffff00ff) |
|
| 699 |
((rgbArray[i] & 0x000000ff) << 8); |
| 700 |
} |
| 701 |
|
| 702 |
image.setRGB(startX, startY, w, h, line, offset, scansize); |
| 703 |
} |
| 704 |
|
| 705 |
/* (non-Javadoc)
|
| 706 |
* @see org.cresques.io.GeoRasterFile#updateImage(int, int, org.cresques.cts.ICoordTrans, java.awt.Image, int origBand, int destBand)
|
| 707 |
*/
|
| 708 |
public Image updateImage(int width, int height, ICoordTrans rp, Image img, |
| 709 |
int origBand, int destBandFlag) throws SupersamplingNotSupportedException{ |
| 710 |
//TODO reproyectar para devolver el trozo de imagen pedida sobre ...
|
| 711 |
// la proyecci?n de destino.
|
| 712 |
int line = 0; |
| 713 |
boolean mustResize = false; |
| 714 |
Dimension fullSize = null; |
| 715 |
boolean trySupersampling = false; |
| 716 |
|
| 717 |
if (file == null) { |
| 718 |
return null; |
| 719 |
} |
| 720 |
|
| 721 |
try {
|
| 722 |
int[] bandlist; |
| 723 |
int[] bandListTriband; |
| 724 |
int[] pRGBArray = null; |
| 725 |
|
| 726 |
if(mustVerifySize()){
|
| 727 |
// Work out the correct aspect for the setView call.
|
| 728 |
double dFileAspect = (double) v.width() / (double) v.height(); |
| 729 |
double dWindowAspect = (double) width / (double) height; |
| 730 |
|
| 731 |
if (dFileAspect > dWindowAspect) {
|
| 732 |
height = (int) ((double) width / dFileAspect); |
| 733 |
} else {
|
| 734 |
width = (int) ((double) height * dFileAspect); |
| 735 |
} |
| 736 |
} |
| 737 |
|
| 738 |
fullSize = new Dimension(width, height); |
| 739 |
|
| 740 |
ChunkFrame[] frames = ChunkFrame.computeFrames(file, v, fullSize, extent);
|
| 741 |
|
| 742 |
if (frames.length == 1) { |
| 743 |
width = frames[0].width;
|
| 744 |
height = frames[0].height;
|
| 745 |
|
| 746 |
if (width <= 0) |
| 747 |
width = 1;
|
| 748 |
|
| 749 |
if (height <= 0) |
| 750 |
height = 1;
|
| 751 |
} |
| 752 |
|
| 753 |
// Create an image of the ecw file.
|
| 754 |
pRGBArray = new int[width]; |
| 755 |
|
| 756 |
// Setup the view parameters for the ecw file.
|
| 757 |
bandlist = new int[bandCount]; |
| 758 |
bandListTriband = new int[bandCount]; |
| 759 |
|
| 760 |
if (bandCount > 2) { |
| 761 |
bandlist[0] = getBand(RED_BAND);
|
| 762 |
bandlist[1] = getBand(GREEN_BAND);
|
| 763 |
bandlist[2] = getBand(BLUE_BAND);
|
| 764 |
setStep(stepArrayX, stepArrayY); |
| 765 |
|
| 766 |
if (bandCount > 3) { |
| 767 |
for (int i = 3; i < bandCount; i++) { |
| 768 |
bandlist[i] = 0;
|
| 769 |
} |
| 770 |
} |
| 771 |
} else {
|
| 772 |
for (int i = 0; i < bandCount; i++) |
| 773 |
bandlist[i] = i; |
| 774 |
} |
| 775 |
|
| 776 |
if (bandCount == 3) { |
| 777 |
bandListTriband[0] = 0; |
| 778 |
bandListTriband[1] = 1; |
| 779 |
bandListTriband[2] = 2; |
| 780 |
} |
| 781 |
|
| 782 |
int[] mascara = new int[3]; |
| 783 |
int[] shl = new int[3]; |
| 784 |
int[] shr = new int[3]; |
| 785 |
boolean order = true; |
| 786 |
|
| 787 |
|
| 788 |
if (img == null) { //Caso en el que se crea un Image |
| 789 |
EcwFile.nUpdate = 1;
|
| 790 |
isSupersampling = false;
|
| 791 |
this.stepArrayX = this.stepArrayY = null; |
| 792 |
|
| 793 |
Image ecwImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); |
| 794 |
|
| 795 |
for (int nChunk = 0; nChunk < frames.length; nChunk++) { |
| 796 |
ChunkFrame f = frames[nChunk]; |
| 797 |
|
| 798 |
try{
|
| 799 |
if (bandCount != 3) { |
| 800 |
setFileView(file.numBands, bandlist, f); |
| 801 |
} else {
|
| 802 |
setFileView(file.numBands, bandListTriband, f); |
| 803 |
} |
| 804 |
}catch(JNCSInvalidSetViewException exc){
|
| 805 |
trySupersampling = true;
|
| 806 |
} |
| 807 |
|
| 808 |
order = calcMaskAndShift(bandlist, mascara, shl, shr); |
| 809 |
|
| 810 |
for (line = 0; line < f.height; line++) { |
| 811 |
file.readLineRGBA(pRGBArray); |
| 812 |
pRGBArray = changeBands(order, pRGBArray, mascara, shl, shr); |
| 813 |
setRGBLine((BufferedImage) ecwImage, f.pos.x, f.pos.y + line, f.width, 1, pRGBArray, 0, f.width); |
| 814 |
} |
| 815 |
|
| 816 |
} //Chuncks
|
| 817 |
|
| 818 |
applyAlpha(ecwImage); |
| 819 |
|
| 820 |
if (frames[0].mustResize && !this.multifile) |
| 821 |
return resizeAndResampleImage(fullSize, ecwImage);
|
| 822 |
|
| 823 |
lastRefreshPercent = file.getPercentComplete(); |
| 824 |
|
| 825 |
//System.out.println("Leido al "+lastRefreshPercent+" %.");
|
| 826 |
return ecwImage;
|
| 827 |
} else { //Caso en el que se actualiza una banda del Image |
| 828 |
EcwFile.nUpdate++; |
| 829 |
|
| 830 |
for (int nChunk = 0; nChunk < frames.length; nChunk++) { |
| 831 |
ChunkFrame f = frames[nChunk]; |
| 832 |
|
| 833 |
if (bandCount != 3) { |
| 834 |
setFileView(file.numBands, bandlist, f); |
| 835 |
} else {
|
| 836 |
setFileView(file.numBands, bandListTriband, f); |
| 837 |
} |
| 838 |
|
| 839 |
order = calcMaskAndShift(bandlist, mascara, shl, shr); |
| 840 |
|
| 841 |
for (line = 0; line < f.height; line++) { |
| 842 |
file.readLineRGBA(pRGBArray); |
| 843 |
pRGBArray = changeBands(order, pRGBArray, mascara, shl, shr); |
| 844 |
setRGBLine((BufferedImage) img, f.pos.x, f.pos.y + line, f.width, 1, pRGBArray, 0, f.width, origBand, destBandFlag); |
| 845 |
} |
| 846 |
} //Chuncks
|
| 847 |
|
| 848 |
applyAlpha(img); |
| 849 |
|
| 850 |
if (frames[0].mustResize && (nUpdate == 3) && this.multifile) { |
| 851 |
return resizeAndResampleImage(fullSize, img);
|
| 852 |
}else{
|
| 853 |
isSupersampling = false;
|
| 854 |
this.stepArrayX = this.stepArrayY = null; |
| 855 |
} |
| 856 |
|
| 857 |
lastRefreshPercent = file.getPercentComplete(); |
| 858 |
|
| 859 |
//System.out.println("Leido al "+lastRefreshPercent+" %.");
|
| 860 |
return img;
|
| 861 |
} |
| 862 |
} catch (com.ermapper.ecw.JNCSException e) { //java.lang.ArrayIndexOutOfBoundsException: |
| 863 |
bErrorOnOpen = true;
|
| 864 |
System.err.println("EcwFile JNCS Error en la l?nea " + line + "/" + |
| 865 |
height); |
| 866 |
System.err.println(e.getMessage());
|
| 867 |
} catch (java.lang.ArrayIndexOutOfBoundsException e) { //: |
| 868 |
bErrorOnOpen = true;
|
| 869 |
System.err.println("EcwFile ArrayIndex Error en la l?nea " + line +"/" + height); |
| 870 |
System.err.println(e.getMessage());
|
| 871 |
} catch (Exception e) { |
| 872 |
bErrorOnOpen = true;
|
| 873 |
errorMessage = e.getMessage(); |
| 874 |
System.err.println(errorMessage);
|
| 875 |
if(trySupersampling)
|
| 876 |
throw new SupersamplingNotSupportedException(); |
| 877 |
} |
| 878 |
|
| 879 |
return img;
|
| 880 |
} |
| 881 |
|
| 882 |
/**
|
| 883 |
* Esta funci?n calcula los arrays de steps en X e Y para que cuando hay supersampleo
|
| 884 |
* se aplique el filtro solo a la esquina superior izquierda de cada pixel.
|
| 885 |
*/
|
| 886 |
private void calcArraySteps(int width, int height, double stepX, double stepY, double offsetX, double offsetY){ |
| 887 |
isSupersampling = true;
|
| 888 |
int w = (int) (Math.ceil(((double)width) * stepX) + 1); |
| 889 |
this.stepArrayX = new int[w]; |
| 890 |
for (double j = Math.abs(offsetX); j < w; j += stepX) |
| 891 |
stepArrayX[(int)(j)] ++;
|
| 892 |
int h = (int) (Math.ceil(((double)height) * stepY) + 1); |
| 893 |
this.stepArrayY = new int[h]; |
| 894 |
for (double j = Math.abs(offsetY); j < h; j += stepY) |
| 895 |
stepArrayY[(int)(j)] ++;
|
| 896 |
} |
| 897 |
|
| 898 |
/**
|
| 899 |
* Obtiene una ventana de datos de la imagen a partir de coordenadas reales.
|
| 900 |
* No aplica supersampleo ni subsampleo sino que devuelve una matriz de igual tama?o a los
|
| 901 |
* pixeles de disco.
|
| 902 |
* @param x Posici?n X superior izquierda
|
| 903 |
* @param y Posici?n Y superior izquierda
|
| 904 |
* @param w Ancho en coordenadas reales
|
| 905 |
* @param h Alto en coordenadas reales
|
| 906 |
* @param rasterBuf Buffer de datos
|
| 907 |
* @param bandList
|
| 908 |
* @return Buffer de datos
|
| 909 |
*/
|
| 910 |
public RasterBuf getWindowRaster(double x, double y, double w, double h, BandList bandList, RasterBuf rasterBuf) { |
| 911 |
Extent selectedExtent = new Extent(x, y, x + w, y - h);
|
| 912 |
setView(selectedExtent); |
| 913 |
int wPx = rasterBuf.getWidth();
|
| 914 |
int hPx = rasterBuf.getHeight();
|
| 915 |
try{
|
| 916 |
int[] bl = new int[3]; |
| 917 |
bl[0] = 0;bl[1] = 1;bl[2] = 2; |
| 918 |
file.setView(file.numBands, bl, selectedExtent.minX(), selectedExtent.maxY(), selectedExtent.maxX(), selectedExtent.minY(), wPx, hPx); |
| 919 |
int width = (int)((w * file.width) / extent.width()); |
| 920 |
int height = (int)((h * file.height) / extent.height()); |
| 921 |
// rasterBuf = new RasterBuf(RasterBuf.TYPE_BYTE, wPx, hPx, bandList.getDrawableBandsCount(), true);
|
| 922 |
// Este driver requiere escribir las 3 bandas, el proceso que las solicito ya utilizar? lo que
|
| 923 |
// necesite
|
| 924 |
rasterBuf = new RasterBuf(RasterBuf.TYPE_BYTE, wPx, hPx, 3, true); |
| 925 |
|
| 926 |
int[] pRGBArray = new int[width]; |
| 927 |
for (int line = 0; line < rasterBuf.getHeight(); line++) { |
| 928 |
file.readLineRGBA(pRGBArray); |
| 929 |
for(int col = 0; col < pRGBArray.length; col ++){ |
| 930 |
rasterBuf.setElemByte(line, col, 0, (byte)(pRGBArray[col] & 0x000000ff)); |
| 931 |
rasterBuf.setElemByte(line, col, 1, (byte)((pRGBArray[col] & 0x0000ff00) >> 8)); |
| 932 |
rasterBuf.setElemByte(line, col, 2, (byte)((pRGBArray[col] & 0x00ff0000) >> 16)); |
| 933 |
} |
| 934 |
} |
| 935 |
}catch(JNCSInvalidSetViewException exc){
|
| 936 |
exc.printStackTrace(); |
| 937 |
}catch (JNCSFileNotOpenException e) {
|
| 938 |
e.printStackTrace(); |
| 939 |
}catch (JNCSException ex) {
|
| 940 |
ex.printStackTrace(); |
| 941 |
} |
| 942 |
|
| 943 |
return rasterBuf;
|
| 944 |
} |
| 945 |
|
| 946 |
/**
|
| 947 |
* Obtiene una ventana de datos de la imagen a partir de coordenadas pixel.
|
| 948 |
* No aplica supersampleo ni subsampleo sino que devuelve una matriz de igual tama?o a los
|
| 949 |
* pixeles de disco.
|
| 950 |
* @param x Posici?n X superior izquierda
|
| 951 |
* @param y Posici?n Y superior izquierda
|
| 952 |
* @param w Ancho en coordenadas reales
|
| 953 |
* @param h Alto en coordenadas reales
|
| 954 |
* @param rasterBuf Buffer de datos
|
| 955 |
* @param bandList
|
| 956 |
* @return Buffer de datos
|
| 957 |
*/
|
| 958 |
public RasterBuf getWindowRaster(int x, int y, int w, int h, BandList bandList, RasterBuf rasterBuf) { |
| 959 |
double initX = file.originX + ((x * extent.width()) / file.width);
|
| 960 |
double initY = file.originY - ((y * extent.height()) / file.height);
|
| 961 |
double width = ((w * extent.width()) / file.width);
|
| 962 |
double height = ((h * extent.height()) / file.height);
|
| 963 |
return getWindowRaster(initX, initY, width, height, bandList, rasterBuf);
|
| 964 |
} |
| 965 |
|
| 966 |
/**
|
| 967 |
*
|
| 968 |
* @param sz
|
| 969 |
* @param image
|
| 970 |
* @return
|
| 971 |
*/
|
| 972 |
private Image resizeAndResampleImage(Dimension sz, Image image) { |
| 973 |
int w = (int)sz.getWidth(); |
| 974 |
int h = (int)sz.getHeight(); |
| 975 |
Image buffImg = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB); |
| 976 |
|
| 977 |
//Desplazamiento para la X y la Y leidas. Estas tienen efecto cuando un pixel no empieza a visualizarse
|
| 978 |
//justo en su esquina superior izquierda y tiene que ser cortado en la visualizaci?n.
|
| 979 |
|
| 980 |
double currentViewX = (((double) file.width)/(Math.abs(extent.getMax().getX() - extent.getMin().getX())))*(v.minX()-file.originX); |
| 981 |
double currentViewY = (((double) file.height)/(Math.abs(extent.getMax().getY() - extent.getMin().getY())))*(file.originY - v.minY()); |
| 982 |
double offsetX = Math.abs(currentViewX - ((int)currentViewX)); |
| 983 |
double offsetY = Math.abs(currentViewY - ((int)currentViewY)); |
| 984 |
|
| 985 |
int xSrc, ySrc;
|
| 986 |
int decr = 2; |
| 987 |
|
| 988 |
if(v.minX() == extent.minX() || v.maxX() == extent.maxX() || v.minY() == extent.minY() || v.maxY() == extent.maxY()){
|
| 989 |
decr = 0;
|
| 990 |
offsetX = offsetY = 0;
|
| 991 |
} |
| 992 |
|
| 993 |
double scaleW = (double)((double)(image.getWidth(null) - decr) / (double)w); |
| 994 |
double scaleH = (double)((double)(image.getHeight(null) - decr) / (double)h); |
| 995 |
this.calcArraySteps(w, h, scaleW, scaleH, offsetX, offsetY);
|
| 996 |
for (int y1 = 0; y1 < h; y1++){ |
| 997 |
ySrc = (int) ((y1 * scaleH) + offsetY);
|
| 998 |
for (int x1 = 0; x1 < w; x1++){ |
| 999 |
xSrc = (int) ((x1 * scaleW) + offsetX);
|
| 1000 |
try {
|
| 1001 |
((BufferedImage) buffImg).setRGB(x1, y1, ((BufferedImage)image).getRGB(xSrc, ySrc)); |
| 1002 |
} catch (java.lang.ArrayIndexOutOfBoundsException e) {
|
| 1003 |
} |
| 1004 |
} |
| 1005 |
} |
| 1006 |
|
| 1007 |
return buffImg;
|
| 1008 |
} |
| 1009 |
|
| 1010 |
|
| 1011 |
private void applyAlpha(Image im) { |
| 1012 |
BufferedImage img = (BufferedImage) im; |
| 1013 |
int alpha = (getAlpha() & 0xff) << 24; |
| 1014 |
int w = img.getWidth();
|
| 1015 |
int[] line = new int[w]; |
| 1016 |
|
| 1017 |
for (int j = 0; j < img.getHeight(); j++) { |
| 1018 |
img.getRGB(0, j, w, 1, line, 0, w); |
| 1019 |
|
| 1020 |
for (int i = 0; i < w; i++) |
| 1021 |
line[i] = (alpha | (line[i] & 0x00ffffff));
|
| 1022 |
|
| 1023 |
img.setRGB(0, j, w, 1, line, 0, w); |
| 1024 |
} |
| 1025 |
} |
| 1026 |
|
| 1027 |
/* (non-Javadoc)
|
| 1028 |
* @see org.cresques.io.GeoRasterFile#getData(int, int)
|
| 1029 |
*/
|
| 1030 |
public Object getData(int x, int y, int band) { |
| 1031 |
//file.readLineRGBA();
|
| 1032 |
return null; |
| 1033 |
} |
| 1034 |
|
| 1035 |
/**
|
| 1036 |
* Devuelve los datos de una ventana solicitada
|
| 1037 |
* @param ulX coordenada X superior izda.
|
| 1038 |
* @param ulY coordenada Y superior derecha.
|
| 1039 |
* @param sizeX tama?o en X de la ventana.
|
| 1040 |
* @param sizeY tama?o en Y de la ventana.
|
| 1041 |
* @param band Banda solicitada.
|
| 1042 |
*/
|
| 1043 |
public byte[] getWindow(int ulX, int ulY, int sizeX, int sizeY, int band) { |
| 1044 |
//TODO Nacho: Implementar getWindow de EcwFile
|
| 1045 |
return null; |
| 1046 |
} |
| 1047 |
|
| 1048 |
/**
|
| 1049 |
* Obtiene la zona (Norte / Sur)
|
| 1050 |
* @return true si la zona es norte y false si es sur
|
| 1051 |
*/
|
| 1052 |
public boolean getZone() { |
| 1053 |
//TODO Nacho: Implementar getZone de EcwFile
|
| 1054 |
return false; |
| 1055 |
} |
| 1056 |
|
| 1057 |
/**
|
| 1058 |
*Devuelve el n?mero de zona UTM
|
| 1059 |
*@return N?mero de zona
|
| 1060 |
*/
|
| 1061 |
public int getUTM() { |
| 1062 |
// TODO Nacho: Implementar getUTM de EcwFile
|
| 1063 |
return 0; |
| 1064 |
} |
| 1065 |
|
| 1066 |
/**
|
| 1067 |
* Obtiene el sistema de coordenadas geograficas
|
| 1068 |
* @return Sistema de coordenadas geogr?ficas
|
| 1069 |
*/
|
| 1070 |
public String getGeogCS() { |
| 1071 |
//TODO Nacho: Implementar getGeogCS de EcwFile
|
| 1072 |
return new String(""); |
| 1073 |
} |
| 1074 |
|
| 1075 |
/**
|
| 1076 |
* Devuelve el tama?o de bloque
|
| 1077 |
* @return Tama?o de bloque
|
| 1078 |
*/
|
| 1079 |
public int getBlockSize() { |
| 1080 |
//TODO Nacho: Implementar getBlockSize de EcwFile
|
| 1081 |
return 1; |
| 1082 |
} |
| 1083 |
|
| 1084 |
/**
|
| 1085 |
* Calcula la transformaci?n que se produce sobre la vista cuando la imagen tiene un fichero .rmf
|
| 1086 |
* asociado. En Ecw el origen de coordenadas en Y es el valor m?ximo y decrece hasta el m?nimo.
|
| 1087 |
* @param originX Origen de la imagen en la coordenada X
|
| 1088 |
* @param originY Origen de la imagen en la coordenada Y
|
| 1089 |
*/
|
| 1090 |
public void setExtentTransform(double originX, double originY, double psX, double psY) { |
| 1091 |
|
| 1092 |
} |
| 1093 |
|
| 1094 |
/**
|
| 1095 |
* Trozo de imagen (Chunk) en que se divide la consulta a la librer?a,
|
| 1096 |
* para esquivar el bug#2.
|
| 1097 |
*
|
| 1098 |
* @author luisw
|
| 1099 |
*/
|
| 1100 |
static class ChunkFrame { |
| 1101 |
// Ancho m?ximo (~2500 px)
|
| 1102 |
final static int MAX_WIDTH = 1536; |
| 1103 |
|
| 1104 |
// Alto m?ximo (no hay l?mite)
|
| 1105 |
final static int MAX_HEIGHT = 1536; |
| 1106 |
Point pos;
|
| 1107 |
Extent v; |
| 1108 |
int width;
|
| 1109 |
int height;
|
| 1110 |
boolean mustResize = false; |
| 1111 |
|
| 1112 |
public ChunkFrame(Extent vista, int w, int h) { |
| 1113 |
v = vista; |
| 1114 |
width = w; |
| 1115 |
height = h; |
| 1116 |
} |
| 1117 |
|
| 1118 |
/**
|
| 1119 |
* Calcula el array de chunks (trozos).
|
| 1120 |
* @param file Fichero ecw que hay que trocear.
|
| 1121 |
* @param v Extent total de la vista.
|
| 1122 |
* @param sz Tama?o total de la vista.
|
| 1123 |
* @return array de ChunkFrames.
|
| 1124 |
* @throws JNCSFileNotOpenException
|
| 1125 |
*/
|
| 1126 |
public static ChunkFrame[] computeFrames(JNCSFile file, Extent v, |
| 1127 |
Dimension sz, Extent extent)
|
| 1128 |
throws JNCSFileNotOpenException {
|
| 1129 |
ChunkFrame[] frames = null; |
| 1130 |
ChunkFrame f = null;
|
| 1131 |
|
| 1132 |
// Calcula el n? de chunks (filas y columnas)
|
| 1133 |
int numCol = (sz.width / MAX_WIDTH);
|
| 1134 |
|
| 1135 |
// Calcula el n? de chunks (filas y columnas)
|
| 1136 |
int numRow = (sz.height / MAX_HEIGHT);
|
| 1137 |
|
| 1138 |
if ((sz.width - (numCol * MAX_WIDTH)) > 0) { |
| 1139 |
numCol++; |
| 1140 |
} |
| 1141 |
|
| 1142 |
if ((sz.height - (numRow * MAX_HEIGHT)) > 0) { |
| 1143 |
numRow++; |
| 1144 |
} |
| 1145 |
|
| 1146 |
frames = new ChunkFrame[numCol * numRow];
|
| 1147 |
|
| 1148 |
JNCSDatasetPoint ptMin = file.convertWorldToDataset(v.minX(), v.minY()); |
| 1149 |
JNCSDatasetPoint ptMax = file.convertWorldToDataset(v.maxX(), v.maxY()); |
| 1150 |
|
| 1151 |
//No utilizamos JNCSDatasetPoint porque siempre hace un redondeo por abajo con lo que perdemos precisi?n. En su lugar
|
| 1152 |
//utilizamos currentViewM... calculado manualmente y que nos proporciona todos los decimales
|
| 1153 |
double currentViewMinX = (((double) file.width)/(Math.abs(extent.getMax().getX() - extent.getMin().getX())))*(v.minX()-file.originX); |
| 1154 |
double currentViewMaxX = (((double) file.width)/(Math.abs(extent.getMax().getX() - extent.getMin().getX())))*(v.maxX()-file.originX); |
| 1155 |
double currentViewMinY = (((double) file.height)/(Math.abs(extent.getMax().getY() - extent.getMin().getY())))*(file.originY - v.minY()); |
| 1156 |
double currentViewMaxY = (((double) file.height)/(Math.abs(extent.getMax().getY() - extent.getMin().getY())))*(file.originY - v.maxY()); |
| 1157 |
|
| 1158 |
if ((ptMax.x - ptMin.x) < sz.width) {
|
| 1159 |
numCol = numRow = 1;
|
| 1160 |
frames = new ChunkFrame[numCol * numRow];
|
| 1161 |
int nPixelsX = (int)Math.ceil(Math.abs(currentViewMaxX - currentViewMinX)); |
| 1162 |
int nPixelsY = (int)Math.ceil(Math.abs(currentViewMaxY - currentViewMinY)); |
| 1163 |
|
| 1164 |
if(v.minX() == extent.minX() || v.maxX() == extent.maxX() || v.minY() == extent.minY() || v.maxY() == extent.maxY()){
|
| 1165 |
f = frames[0] = new ChunkFrame(v, nPixelsX, nPixelsY); |
| 1166 |
f.v = new Extent(v);
|
| 1167 |
}else{
|
| 1168 |
f = frames[0] = new ChunkFrame(v, nPixelsX + 1, nPixelsY + 1); |
| 1169 |
double pointEndWcX = v.minX() + (((nPixelsX + 1) * Math.abs(v.maxX() - v.minX())) / nPixelsX); |
| 1170 |
double pointEndWcY = v.maxY() - (((nPixelsY + 1) * Math.abs(v.maxY() - v.minY())) / nPixelsY); |
| 1171 |
f.v = new Extent(v.minX(), v.maxY(), pointEndWcX, pointEndWcY);
|
| 1172 |
} |
| 1173 |
|
| 1174 |
f.pos = new Point(0, 0); |
| 1175 |
f.mustResize = true;
|
| 1176 |
} else {
|
| 1177 |
// Calcula cada chunk
|
| 1178 |
double stepx = ((double) ptMax.x - ptMin.x) / sz.getWidth(); |
| 1179 |
double stepy = ((double) ptMax.y - ptMin.y) / sz.getHeight(); |
| 1180 |
int h = sz.height;
|
| 1181 |
|
| 1182 |
for (int r = 0; r < numRow; r++) { |
| 1183 |
int w = sz.width;
|
| 1184 |
|
| 1185 |
for (int c = 0; c < numCol; c++) { |
| 1186 |
f = new ChunkFrame(null, -1, -1); |
| 1187 |
|
| 1188 |
// Posici?n del chunk
|
| 1189 |
f.pos = new Point(c * MAX_WIDTH, r * MAX_HEIGHT); |
| 1190 |
|
| 1191 |
// Tama?o del chunk
|
| 1192 |
f.width = Math.min(MAX_WIDTH, w);
|
| 1193 |
f.height = Math.min(MAX_HEIGHT, h);
|
| 1194 |
|
| 1195 |
// Extent del chunk
|
| 1196 |
int x1 = ptMin.x + (int) (f.pos.x * stepx); |
| 1197 |
int x2 = x1 + (int) (f.width * stepx); |
| 1198 |
int y1 = ptMax.y - (int) (f.pos.y * stepy); |
| 1199 |
int y2 = y1 - (int) (f.height * stepy); //ptMin.y; |
| 1200 |
JNCSWorldPoint pt1 = file.convertDatasetToWorld(x1, y1); |
| 1201 |
JNCSWorldPoint pt2 = file.convertDatasetToWorld(x2, y2); |
| 1202 |
|
| 1203 |
f.v = new Extent(pt1.x, pt1.y, pt2.x, pt2.y); // Hay que calcularlo |
| 1204 |
frames[(r * numCol) + c] = f; |
| 1205 |
w -= MAX_WIDTH; |
| 1206 |
} |
| 1207 |
|
| 1208 |
h -= MAX_HEIGHT; |
| 1209 |
} |
| 1210 |
} |
| 1211 |
|
| 1212 |
//System.out.println("Hay "+numRow+" filas y "+numCol+" columnas.");
|
| 1213 |
return frames;
|
| 1214 |
} |
| 1215 |
} |
| 1216 |
|
| 1217 |
public RasterBuf getWindowRaster(double minX, double minY, double maxX, double maxY, int bufWidth, int bufHeight, BandList bandList, RasterBuf rasterBuf) { |
| 1218 |
// TODO Auto-generated method stub
|
| 1219 |
return null; |
| 1220 |
} |
| 1221 |
|
| 1222 |
public Point2D rasterToWorld(Point2D pt) { |
| 1223 |
// TODO Auto-generated method stub
|
| 1224 |
return null; |
| 1225 |
} |
| 1226 |
|
| 1227 |
public Point2D worldToRaster(Point2D pt) { |
| 1228 |
// TODO Auto-generated method stub
|
| 1229 |
return null; |
| 1230 |
} |
| 1231 |
|
| 1232 |
public RasterBuf getWindowRasterWithNoData(double x, double y, double w, double h, BandList bandList, RasterBuf rasterBuf) { |
| 1233 |
// TODO Auto-generated method stub
|
| 1234 |
return null; |
| 1235 |
} |
| 1236 |
} |