svn-gvsig-desktop / tags / v1_1_Build_1005 / libraries / libCq_CMS_praster / src / org / cresques / io / GdalFile.java @ 12355
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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.Image; |
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import java.awt.geom.AffineTransform; |
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import java.awt.geom.NoninvertibleTransformException; |
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import java.awt.geom.Point2D; |
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import java.awt.geom.Rectangle2D; |
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import java.awt.image.BufferedImage; |
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import java.io.IOException; |
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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.cresques.io.data.BandList; |
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import org.cresques.io.data.RasterBuf; |
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import org.cresques.io.datastruct.Metadata; |
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import org.cresques.io.datastruct.Palette; |
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import org.cresques.io.exceptions.NotSupportedExtensionException; |
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import org.cresques.io.exceptions.SupersamplingNotSupportedException; |
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import org.cresques.px.Extent; |
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import org.cresques.util.Utilities; |
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import es.gva.cit.jgdal.Gdal; |
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import es.gva.cit.jgdal.GdalBuffer; |
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import es.gva.cit.jgdal.GdalException; |
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import es.gva.cit.jgdal.GdalRasterBand; |
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import es.gva.cit.jgdal.GeoTransform; |
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/**
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* Soporte 'nativo' para ficheros desde GDAL.
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* Este conjunto de funcionalidades est? tomado de manera casi literal
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* del soporte para ECW de ermapper.<br>
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* Probablemente esto deber?a formar parte del JNI que recubre a la
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* librer?a en C extraida de gdal.<br>
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* Lo pongo aqu? a manera de ejemplo de como atacar un formato binario
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* desde Java.<br><br>
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* @author Luis W. Sevilla.
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*/
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class GdalNative extends Gdal { |
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static boolean WITH_OVERVIEWS = true; |
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private GdalFile driver = null; |
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private String ext = ""; |
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private String fileName = null; |
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/**
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* Nombre corto del driver de gdal
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*/
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private String shortName = ""; |
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public GeoTransform trans = null; |
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/**
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* Contorno en coordenadas geogr?ficas. (y Extent del raster).
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*/
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public Contour bBoxRot = new Contour(); |
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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. Cuando el raster no tiene
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* rotaci?n coincide con esq.
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*/
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public Contour bBoxWithoutRot = new Contour(); |
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public int width = 0, height = 0; |
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public double originX = 0D, originY = 0D; |
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public String version = ""; |
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private int alpha = 0; |
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protected int rBandNr = 1, gBandNr = 2, bBandNr = 3, aBandNr = 4; |
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private int dataType = GDT_Byte; |
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/**
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* Metadatos leidos de la imagen
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*/
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private Metadata metadata = null; |
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private boolean georeferenced = true; |
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/**
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* Vectores que contiene los desplazamientos de un pixel cuando hay supersampling.
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* , es decir el n?mero de pixels de pantalla que tiene un pixel de imagen. Como todos
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* los pixeles no tienen el mismo ancho y alto ha de meterse en un array y no puede ser
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* una variable. Adem?s hay que tener en cuenta que el primer y ?ltimo pixel son de
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* distinto tama?o que el resto.
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*/
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public int[] stepArrayX = null, stepArrayY = null; |
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protected GdalRasterBand[] gdalBands = null; |
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private double lastReadLine = -1; |
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private int currentFullWidth = -1; |
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private int currentFullHeight = -1; |
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private int currentViewWidth = -1; |
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private int currentViewHeight = -1; |
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private double currentViewX = 0D; |
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private double currentViewY = 0D; |
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private double viewportScaleX = 0D; |
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private double viewportScaleY = 0D; |
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private double wcWidth = 0D; |
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private double stepX = 0D; |
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private double stepY = 0D; |
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public boolean isSupersampling = false; |
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private boolean[] orientation; |
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/**
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* Overview usada en el ?ltimo setView
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*/
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int currentOverview = -1; |
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// Polilinea con extent
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public class Contour extends Vector { |
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final private static long serialVersionUID = -3370601314380922368L; |
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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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public GdalNative(String fName, GdalFile driver) throws GdalException, IOException { |
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super();
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this.driver = driver;
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init(fName); |
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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)) / width);
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double y = bBoxWithoutRot.maxY - ((pt.getY() * (bBoxWithoutRot.maxY - bBoxWithoutRot.minY)) / height);
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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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* <P>
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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. Esto lo hace con los valores de transformaci?n
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* leidos por gdal en el vector de 6 elementos adfGeoTransform donde cada elemento
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* del vector represnta los siguientes valores
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* </P>
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* <UL>
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* <LI>0-origen X</LI>
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* <LI>1-tama?o de pixel X</LI>
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* <LI>2-shear en X</LI>
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* <LI>3-origen Y</LI>
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* <LI>4-shear en Y</LI>
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* <LI>5-Tama?o de pixel Y</LI>
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* </UL>
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* <P>
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* Para el calculo de una esquina aplicamos la formula siguiente:<BR>
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* PtoX = originX + pixelSizeX * x + shearX * y;<BR>
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* PtoY = originY + shearY * x + pixelSizeY * y;<BR>
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* Aplicandolo a las cuatro esquinas sustituimos en cada una de ellas por.
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* </P>
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* <UL>
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* <LI>Esquina superior izquierda: x = 0; y = 0;</LI>
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* <LI>Esquina superior derecha: x = MaxX; y = 0;</LI>
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* <LI>Esquina inferior izquierda: x = 0; y = MaxY;</LI>
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* <LI>Esquina inferior derecha: x = MaxX; y = MaxY;</LI>
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* </UL>
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* <P>
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* quedandonos en los cuatro casos:
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* </P>
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* <UL>
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* <LI>Esquina superior izquierda: originX; originY;</LI>
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* <LI>Esquina superior derecha: PtoX = originX + pixelSizeX * x; PtoY = originY + shearY * x;</LI>
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* <LI>Esquina inferior izquierda: PtoX = originX + shearX * y; PtoY = originY + pixelSizeY * y;</LI>
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* <LI>Esquina inferior derecha: PtoX = originX + pixelSizeX * x + shearX * y; PtoY = originY + shearY * x + pixelSizeY * y;</LI>
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* </UL>
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*
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*/
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private void boundingBoxFromGeoTransform(){ |
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double geoX = 0D, geoY = 0D; |
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//Upper left corner
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bBoxRot.add(new Point2D.Double(trans.adfgeotransform[0], trans.adfgeotransform[3])); |
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//Lower left corner
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geoX = trans.adfgeotransform[0] + trans.adfgeotransform[2] * height; |
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geoY = trans.adfgeotransform[3] + trans.adfgeotransform[5] * height; |
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bBoxRot.add(new Point2D.Double(geoX, geoY)); |
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//Upper right corner
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geoX = trans.adfgeotransform[0] + trans.adfgeotransform[1] * width; |
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geoY = trans.adfgeotransform[3] + trans.adfgeotransform[4] * width; |
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bBoxRot.add(new Point2D.Double(geoX, geoY)); |
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//Lower right corner
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geoX = trans.adfgeotransform[0] + trans.adfgeotransform[1] * width + trans.adfgeotransform[2] * height; |
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geoY = trans.adfgeotransform[3] + trans.adfgeotransform[4] * width + trans.adfgeotransform[5] * height; |
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bBoxRot.add(new Point2D.Double(geoX, geoY)); |
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//TODO: ?OJO! con coordenadas geogr?ficas
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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 = trans.adfgeotransform[0]; |
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double oy = trans.adfgeotransform[3]; |
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double resx = trans.adfgeotransform[1]; |
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double resy = trans.adfgeotransform[5]; |
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bBoxWithoutRot.add(new Point2D.Double(ox, oy)); |
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bBoxWithoutRot.add(new Point2D.Double(ox + resx * width, oy)); |
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bBoxWithoutRot.add(new Point2D.Double(ox, oy + resy * height)); |
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bBoxWithoutRot.add(new Point2D.Double(ox + resx * width, oy + resy * height)); |
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//TODO: ?OJO! con coordenadas geogr?ficas
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} |
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private void init(String fName) throws GdalException, IOException { |
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fileName = fName; |
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open(fName,GA_ReadOnly); |
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ext = fName.toLowerCase().substring(fName.lastIndexOf('.')+1); |
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if (ext.compareTo("tif") == 0) |
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WITH_OVERVIEWS = false;
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width = getRasterXSize(); |
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height = getRasterYSize(); |
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setDataType(this.getRasterBand(1).getRasterDataType()); |
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shortName = getDriverShortName(); |
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metadata = new Metadata(getMetadata());
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//Asignamos la interpretaci?n de color leida por gdal a cada banda. Esto nos sirve
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//para saber que banda de la imagen va asignada a cada banda de visualizaci?n (ARGB)
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metadata.initColorInterpretation(getRasterCount()); |
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metadata.initNoDataByBand(getRasterCount()); |
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for(int i = 0; i < getRasterCount(); i++){ |
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GdalRasterBand rb = getRasterBand(i + 1);
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String colorInt = getColorInterpretationName(rb.getRasterColorInterpretation());
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metadata.setNoDataValue(i, rb.getRasterNoDataValue()); |
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metadata.setColorInterpValue(i, colorInt); |
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if(colorInt.equals("Red")) |
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rBandNr = i + 1;
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if(colorInt.equals("Green")) |
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gBandNr = i + 1;
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if(colorInt.equals("Blue")) |
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bBandNr = i + 1;
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if(colorInt.equals("Alpha")) |
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aBandNr = i + 1;
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} |
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try{
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trans = getGeoTransform(); |
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boolean isCorrect = false; |
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for(int i = 0; i < trans.adfgeotransform.length; i++) |
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if(trans.adfgeotransform[i] != 0) |
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isCorrect = true;
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if(!isCorrect)
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throw new GdalException(""); |
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boundingBoxWithoutRotation(); |
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boundingBoxFromGeoTransform(); |
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this.georeferenced = true; |
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}catch(GdalException exc){
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bBoxRot.add(new Point2D.Double(0, 0)); |
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bBoxRot.add(new Point2D.Double(width, 0)); |
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bBoxRot.add(new Point2D.Double(0, height)); |
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bBoxRot.add(new Point2D.Double(width, height)); |
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bBoxWithoutRot = bBoxRot; |
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this.georeferenced = false; |
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} |
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readPalette(); |
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} |
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public void readPalette(){ |
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//Cargamos la tabla de color si la tiene
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try{
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gdalBands = new GdalRasterBand[1]; |
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gdalBands[0] = getRasterBand(1); |
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if(gdalBands[0] != null && gdalBands[0].getRasterColorTable() != null){ |
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Palette palette = new Palette();
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palette.createPaletteFromGdalColorTable(gdalBands[0].getRasterColorTable());
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driver.setPalette(palette); |
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} |
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}catch(GdalException exc){
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//No cargamos la tabla de color
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} |
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} |
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/**
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* Asigna el valor de Alpha
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* @param a
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*/
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public void setAlpha(int a) { |
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alpha = a; |
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} |
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/**
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* Asigna el tipo de dato
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* @param dt entero que representa el tipo de dato
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*/
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public void setDataType(int dt) { |
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dataType = dt; |
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} |
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/**
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* Obtiene el tipo de dato
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* @return entero que representa el tipo de dato
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*/
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public int getDataType() { |
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return dataType;
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} |
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// Supone rasters no girados
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public Point2D worldToRaster(Point2D pt) { |
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double x = (((double) currentFullWidth) / (bBoxWithoutRot.maxX - bBoxWithoutRot.minX)) * (pt.getX() - bBoxWithoutRot.minX); |
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double y = (((double) currentFullHeight) / (bBoxWithoutRot.maxY - bBoxWithoutRot.minY)) * (bBoxWithoutRot.maxY - pt.getY()); |
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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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* Calcula el overview a usar. Hay que tener en cuenta que tenemos que tener calculadas las variables
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* viewPortScale, currentFullWidth y currentFulHeight
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* @param coordenada pixel expresada en double que indica la posici?n superior izquierda
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* @throws GdalException
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*/
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private void calcOverview(Point2D tl, Point2D br, boolean[] orientation) throws GdalException{ |
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gdalBands[0] = getRasterBand(1); |
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currentOverview = -1;
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if (WITH_OVERVIEWS && gdalBands[0].getOverviewCount() > 0) { |
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GdalRasterBand ovb = null;
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for (int i = gdalBands[0].getOverviewCount()-1; i > 0; i--) { |
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ovb = gdalBands[0].getOverview(i);
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if (ovb.getRasterBandXSize()>getRasterXSize()*viewportScaleX) {
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currentOverview = i; |
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viewportScaleX *= ((double) width/(double) ovb.getRasterBandXSize()); |
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viewportScaleY *= ((double) height/(double) ovb.getRasterBandYSize()); |
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stepX = 1D/viewportScaleX;
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stepY = 1D/viewportScaleY;
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currentFullWidth = ovb.getRasterBandXSize(); |
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currentFullHeight = ovb.getRasterBandYSize(); |
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if(!orientation[0])//Invierte la orientaci?n en X |
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currentViewX = (width - tl.getX()) - (br.getX()-tl.getX()); |
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else
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currentViewX = tl.getX(); |
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if(orientation[1])//Invierte la orientaci?n en Y |
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lastReadLine = (height - tl.getY()) - (br.getY()-tl.getY()); |
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else
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lastReadLine = tl.getY(); |
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break;
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} |
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} |
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} |
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} |
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|
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public void setView(double dWorldTLX, double dWorldTLY, |
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double dWorldBRX, double dWorldBRY, |
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int nWidth, int nHeight, boolean[] orientation) { |
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this.orientation = orientation;
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currentFullWidth = width; |
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currentFullHeight = height; |
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Point2D tl = worldToRaster(new Point2D.Double(dWorldTLX, dWorldTLY)); |
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Point2D br = worldToRaster(new Point2D.Double(dWorldBRX, dWorldBRY)); |
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// Calcula cual es la primera l?nea a leer;
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currentViewWidth = nWidth; |
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currentViewHeight = nHeight; |
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wcWidth = Math.abs(br.getX() - tl.getX());
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|
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if(!orientation[0]) //Invierte la orientaci?n en X |
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currentViewX = (width - tl.getX()) - (br.getX()-tl.getX()); |
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else
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currentViewX = tl.getX(); |
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viewportScaleX = (double) currentViewWidth/(br.getX()-tl.getX());
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viewportScaleY = (double) currentViewHeight/(br.getY()-tl.getY());
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stepX = 1D/viewportScaleX;
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stepY = 1D/viewportScaleY;
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if(orientation[1])//Invierte la orientaci?n en Y |
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lastReadLine = (height - tl.getY()) - (br.getY()-tl.getY()); |
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else
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lastReadLine = tl.getY(); |
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|
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//Para lectura del renderizado (ARGB). readWindow selecciona las bandas que necesita.
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try {
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// calcula el overview a usar
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gdalBands = new GdalRasterBand[4]; |
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calcOverview(tl, br, orientation); |
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calcArraySteps(); |
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// Selecciona las bandas y los overviews necesarios
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gdalBands[0] = getRasterBand(rBandNr);
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gdalBands[1] = gdalBands[0]; |
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gdalBands[2] = gdalBands[1]; |
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setDataType(gdalBands[0].getRasterDataType());
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if(this.getRasterCount() >= 2) { |
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gdalBands[1] = getRasterBand(gBandNr);
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gdalBands[2] = gdalBands[1]; |
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} |
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if(this.getRasterCount() >= 3) |
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gdalBands[2] = getRasterBand(bBandNr);
|
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if(metadata.isAlphaBand())
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gdalBands[3] = getRasterBand(aBandNr);
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|
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|
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if (currentOverview > 0) { |
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gdalBands[0] = gdalBands[0].getOverview(currentOverview); |
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gdalBands[1] = gdalBands[0]; |
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gdalBands[2] = gdalBands[1]; |
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if(this.getRasterCount() >= 2) { |
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gdalBands[1] = gdalBands[1].getOverview(currentOverview); |
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gdalBands[2] = gdalBands[1]; |
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} |
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if(this.getRasterCount() >= 3) |
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gdalBands[2] = gdalBands[2].getOverview(currentOverview); |
432 |
if(metadata.isAlphaBand())
|
433 |
gdalBands[3] = gdalBands[3].getOverview(currentOverview); |
434 |
|
435 |
} |
436 |
|
437 |
} catch (GdalException e) {
|
438 |
e.printStackTrace(); |
439 |
} |
440 |
} |
441 |
|
442 |
/**
|
443 |
* Esta funci?n calcula los arrays de steps en X e Y para que cuando hay supersampleo
|
444 |
* se aplique el filtro solo a la esquina superior izquierda de cada pixel.
|
445 |
*/
|
446 |
private void calcArraySteps(){ |
447 |
if(stepX < 1 && stepY < 1){ |
448 |
isSupersampling = true;
|
449 |
int w = (int) (Math.ceil(((double)currentViewWidth) * stepX) + 1); |
450 |
this.stepArrayX = new int[w]; |
451 |
for (double j = Math.abs(currentViewX - ((int)currentViewX)); j < w; j += stepX) |
452 |
stepArrayX[(int)(j)] ++;
|
453 |
|
454 |
int h = (int) (Math.ceil(((double)currentViewHeight) * stepY) + 1); |
455 |
this.stepArrayY = new int[h]; |
456 |
for (double j = Math.abs(lastReadLine - ((int)lastReadLine)); j < h; j += stepY) |
457 |
stepArrayY[(int)(j)] ++;
|
458 |
}else{
|
459 |
isSupersampling = false;
|
460 |
this.stepArrayX = this.stepArrayY = null; |
461 |
} |
462 |
} |
463 |
|
464 |
int lastY = -1; |
465 |
|
466 |
/**
|
467 |
* Lee una l?nea de bytes
|
468 |
* @param line Buffer donde se cargan los datos
|
469 |
* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
470 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
471 |
* por la izquierda a mitad de pixel
|
472 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
473 |
*/
|
474 |
private void readLine(byte[][] line, double initOffset, GdalBuffer[] gdalBuffer){ |
475 |
double j = 0D; |
476 |
int i = 0; |
477 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++){ |
478 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j+=stepX) { |
479 |
line[iBand][i] = gdalBuffer[iBand].buffByte[(int) j];
|
480 |
} |
481 |
} |
482 |
} |
483 |
|
484 |
/**
|
485 |
* Lee una l?nea de shorts
|
486 |
* @param line Buffer donde se cargan los datos
|
487 |
* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
488 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
489 |
* por la izquierda a mitad de pixel
|
490 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
491 |
*/
|
492 |
private void readLine(short[][] line, double initOffset, GdalBuffer[] gdalBuffer){ |
493 |
double j = 0D; |
494 |
int i = 0; |
495 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++){ |
496 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j+=stepX) { |
497 |
line[iBand][i] = (short)(gdalBuffer[iBand].buffShort[(int) j] & 0xffff); |
498 |
} |
499 |
} |
500 |
} |
501 |
|
502 |
/**
|
503 |
* Lee una l?nea de ints
|
504 |
* @param line Buffer donde se cargan los datos
|
505 |
* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
506 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
507 |
* por la izquierda a mitad de pixel
|
508 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
509 |
*/
|
510 |
private void readLine(int[][] line, double initOffset, GdalBuffer[] gdalBuffer){ |
511 |
double j = 0D; |
512 |
int i = 0; |
513 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++){ |
514 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j+=stepX) { |
515 |
line[iBand][i] = (gdalBuffer[iBand].buffInt[(int) j] & 0xffffffff); |
516 |
} |
517 |
} |
518 |
} |
519 |
|
520 |
/**
|
521 |
* Lee una l?nea de float
|
522 |
* @param line Buffer donde se cargan los datos
|
523 |
* @param initOffset Desplazamiento inicial desde el margen izquierdo. Esto es necesario para cuando
|
524 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
525 |
* por la izquierda a mitad de pixel
|
526 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
527 |
*/
|
528 |
private void readLine(float[][] line, double initOffset, GdalBuffer[] gdalBuffer){ |
529 |
double j = 0D; |
530 |
int i = 0; |
531 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++){ |
532 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j+=stepX) { |
533 |
line[iBand][i] = gdalBuffer[iBand].buffFloat[(int) j];
|
534 |
} |
535 |
} |
536 |
} |
537 |
|
538 |
/**
|
539 |
* Lee una l?nea de doubles
|
540 |
* @param line Buffer donde se cargan los datos
|
541 |
* @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
542 |
* se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
543 |
* por la izquierda a mitad de pixel
|
544 |
* @param gdalBuffer Buffer con la l?nea de datos original
|
545 |
*/
|
546 |
private void readLine(double[][] line, double initOffset, GdalBuffer[] gdalBuffer){ |
547 |
double j = 0D; |
548 |
int i = 0; |
549 |
for (int iBand = 0; iBand < gdalBuffer.length; iBand++){ |
550 |
for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j+=stepX) { |
551 |
line[iBand][i] = gdalBuffer[iBand].buffDouble[(int) j];
|
552 |
} |
553 |
} |
554 |
} |
555 |
|
556 |
public void readLine(Object line) throws GdalException { |
557 |
int w = (int) (Math.ceil(((double)currentViewWidth)*stepX) + 1); |
558 |
int x = (int) (currentViewX); |
559 |
int y = (int) (lastReadLine); |
560 |
GdalBuffer r = null, g = null, b = null; |
561 |
GdalBuffer a = new GdalBuffer();
|
562 |
|
563 |
while(y >= gdalBands[0].getRasterBandYSize()) |
564 |
y--; |
565 |
|
566 |
if (x+w > gdalBands[0].getRasterBandXSize()) |
567 |
w = gdalBands[0].getRasterBandXSize()-x;
|
568 |
|
569 |
if(gdalBands[0].getRasterColorTable() != null){ |
570 |
/*Palette palette = new Palette();
|
571 |
palette.createPaletteFromGdalColorTable(gdalBands[0].getRasterColorTable());
|
572 |
driver.setPalette(palette);*/
|
573 |
r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType); |
574 |
}else{
|
575 |
a.buffByte = new byte[w]; |
576 |
r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType); |
577 |
g = b = r; |
578 |
if (getRasterCount() > 1 && gdalBands[1] != null) |
579 |
g = gdalBands[1].readRaster(x, y, w, 1, w, 1, dataType); |
580 |
if (getRasterCount() > 2 && gdalBands[2] != null) |
581 |
b = gdalBands[2].readRaster(x, y, w, 1, w, 1, dataType); |
582 |
} |
583 |
|
584 |
lastReadLine += stepY; |
585 |
|
586 |
double initOffset = Math.abs(currentViewX - ((int)currentViewX)); |
587 |
GdalBuffer[] bands = {r, g, b};
|
588 |
|
589 |
if (dataType == GDT_Byte)
|
590 |
readLine((byte[][])line, initOffset, bands); |
591 |
else if (dataType == GDT_CInt16 || dataType == GDT_Int16 || dataType == GDT_UInt16) |
592 |
readLine((short[][])line, initOffset, bands); |
593 |
else if (dataType == GDT_CInt32 || dataType == GDT_Int32 || dataType == GDT_UInt32) |
594 |
readLine((int[][])line, initOffset, bands); |
595 |
else if(dataType == GDT_Float32 || dataType == GDT_CFloat32) |
596 |
readLine((float[][])line, initOffset, bands); |
597 |
else if(dataType == GDT_Float64 || dataType == GDT_CFloat64) |
598 |
readLine((double[][])line, initOffset, bands); |
599 |
|
600 |
return;
|
601 |
} |
602 |
|
603 |
/**
|
604 |
* Lee una l?nea y la guarda cada elemento sobre un entero. Este entero representa
|
605 |
* un valor ARGB
|
606 |
* @param line Buffer sobre el que se escribe la linea
|
607 |
* @return
|
608 |
* @throws GdalException
|
609 |
*/
|
610 |
int readLineRGBA(int[] line) throws GdalException { |
611 |
int err = 0; |
612 |
|
613 |
int w = (int) (Math.ceil(((double)currentViewWidth)*stepX) + 1); |
614 |
int x = (int) currentViewX; |
615 |
int y = (int) lastReadLine; |
616 |
GdalBuffer r = null, g = null, b = null, p = null; |
617 |
GdalBuffer a = new GdalBuffer();
|
618 |
|
619 |
while(y >= gdalBands[0].getRasterBandYSize()) |
620 |
y--; |
621 |
|
622 |
if (x+w > gdalBands[0].getRasterBandXSize()) |
623 |
w = gdalBands[0].getRasterBandXSize()-x;
|
624 |
|
625 |
if(gdalBands[0].getRasterColorTable() != null){ |
626 |
/*Palette palette = new Palette();
|
627 |
palette.createPaletteFromGdalColorTable(gdalBands[0].getRasterColorTable());
|
628 |
driver.setPalette(palette);*/
|
629 |
r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType); |
630 |
}else{
|
631 |
|
632 |
r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType); |
633 |
g = b = r; |
634 |
if (getRasterCount() > 1 && gdalBands[1] != null) |
635 |
g = gdalBands[1].readRaster(x, y, w, 1, w, 1, dataType); |
636 |
if (getRasterCount() > 2 && gdalBands[2] != null) |
637 |
b = gdalBands[2].readRaster(x, y, w, 1, w, 1, dataType); |
638 |
|
639 |
if(metadata.isAlphaBand()){
|
640 |
a = gdalBands[3].readRaster(x, y, w, 1, w, 1, GDT_Byte); |
641 |
}else{
|
642 |
a.buffByte = new byte[w]; |
643 |
for (int i = 0;i < w;i++) |
644 |
a.buffByte[i] = (byte)255; |
645 |
} |
646 |
} |
647 |
lastReadLine += stepY; |
648 |
|
649 |
int i=0; |
650 |
double j = Math.abs(currentViewX - ((int)currentViewX)); |
651 |
int alpha = (this.alpha & 0xff) << 24; |
652 |
|
653 |
if(orientation[0]){ //Pixel size en X positivo |
654 |
if (dataType == GDT_Byte){
|
655 |
if(gdalBands[0].getRasterColorTable() != null){ |
656 |
for (i=0; i<currentViewWidth && j<r.getSize(); i++, j+=stepX) { |
657 |
int jInt = (int)(j); |
658 |
line[i] = (alpha) + ((r.buffByte[jInt] & 0xff) << 16) + ((r.buffByte[jInt] & 0xff) << 8) + (r.buffByte[jInt] & 0xff); |
659 |
} |
660 |
}else{
|
661 |
for (i=0; i<currentViewWidth && j<r.getSize(); i++, j+=stepX) { |
662 |
int jInt = (int)(j); |
663 |
line[i] = (alpha & ((a.buffByte[jInt])& 0xff) << 24) + ((r.buffByte[jInt] & 0xff) << 16) + ((g.buffByte[jInt] & 0xff) << 8) + (b.buffByte[jInt] & 0xff); |
664 |
} |
665 |
} |
666 |
}else if (dataType == GDT_CInt16 || dataType == GDT_Int16 || dataType == GDT_UInt16){ |
667 |
if (g == null) // Sibgle Band (Typical DEM) |
668 |
for (i=0; i<currentViewWidth && j<r.getSize(); i++, j+=stepX) { |
669 |
int jInt = (int)(j); |
670 |
line[i] = (alpha & ((a.buffByte[jInt])& 0xff) << 24) + r.buffShort[jInt]; |
671 |
} |
672 |
else { // Multiband |
673 |
// System.err.println("Raster 16bits multibanda");
|
674 |
for (i=0; i<currentViewWidth && j<r.getSize(); i++, j+=stepX) { |
675 |
int jInt = (int)(j); |
676 |
line[i] = (alpha & ((a.buffByte[jInt])& 0xff) << 24) | (((r.buffShort[jInt] & 0xfff0) << 12) & 0xff0000 ) | |
677 |
(((g.buffShort[jInt] & 0xfff0) << 4 ) & 0xff00 ) | |
678 |
(((b.buffShort[jInt] & 0xfff0) >> 4 ) & 0xff ); |
679 |
} |
680 |
} |
681 |
} |
682 |
}else{ //Pixel size en X negativo |
683 |
if (dataType == GDT_Byte){
|
684 |
if(gdalBands[0].getRasterColorTable() != null){ |
685 |
for (i=currentViewWidth - 1; i>=0 && j<r.getSize(); i--, j+=stepX) { |
686 |
int jInt = (int)(j); |
687 |
line[i] = (alpha) + ((r.buffByte[jInt] & 0xff) << 16) + ((r.buffByte[jInt] & 0xff) << 8) + (r.buffByte[jInt] & 0xff); |
688 |
} |
689 |
}else{
|
690 |
for (i=currentViewWidth - 1; i>=0 && j<r.getSize(); i--, j+=stepX) { |
691 |
int jInt = (int)(j); |
692 |
line[i] = (alpha & ((a.buffByte[jInt])& 0xff) << 24) + ((r.buffByte[jInt] & 0xff) << 16) + ((g.buffByte[jInt] & 0xff) << 8) + (b.buffByte[jInt] & 0xff); |
693 |
} |
694 |
} |
695 |
}else if (dataType == GDT_CInt16 || dataType == GDT_Int16 || dataType == GDT_UInt16){ |
696 |
if (g == null) // Sibgle Band (Typical DEM) |
697 |
for (i=currentViewWidth - 1; i>=0 && j<r.getSize(); i--, j+=stepX) { |
698 |
int jInt = (int)(j); |
699 |
line[i] = (alpha & ((a.buffByte[jInt])& 0xff) << 24) + r.buffShort[jInt]; |
700 |
} |
701 |
else { // Multiband |
702 |
// System.err.println("Raster 16bits multibanda");
|
703 |
for (i=currentViewWidth - 1; i>=0 && j<r.getSize(); i--, j+=stepX) { |
704 |
int jInt = (int)(j); |
705 |
line[i] = (alpha & ((a.buffByte[jInt])& 0xff) << 24) | (((r.buffShort[jInt] & 0xfff0) << 12) & 0xff0000 ) | |
706 |
(((g.buffShort[jInt] & 0xfff0) << 4 ) & 0xff00 ) | |
707 |
(((b.buffShort[jInt] & 0xfff0) >> 4 ) & 0xff ); |
708 |
} |
709 |
} |
710 |
} |
711 |
} |
712 |
return err;
|
713 |
} |
714 |
|
715 |
/**
|
716 |
* Lee una ventana de datos sin resampleo a partir de coordenadas reales.
|
717 |
* @param buf Buffer donde se almacenan los datos
|
718 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
719 |
* @param dWorldTLX Posici?n X en pixeles
|
720 |
* @param dWorldTLY Posici?n Y en pixeles
|
721 |
* @param w Ancho en pixeles
|
722 |
* @param h Alto en pixeles
|
723 |
* @throws GdalException
|
724 |
*/
|
725 |
public void readWindow(RasterBuf buf, BandList bandList, double dWorldTLX, double dWorldTLY, |
726 |
int nWidth, int nHeight) throws GdalException { |
727 |
Point2D tl = worldToRaster(new Point2D.Double(dWorldTLX, dWorldTLY)); |
728 |
|
729 |
gdalBands = new GdalRasterBand[getRasterCount()];
|
730 |
isSupersampling = false;
|
731 |
if(gdalBands.length == 0) |
732 |
return;
|
733 |
|
734 |
try {
|
735 |
// Selecciona las bandas
|
736 |
gdalBands[0] = getRasterBand(1); |
737 |
setDataType(gdalBands[0].getRasterDataType());
|
738 |
for(int iBand = 1; iBand < gdalBands.length; iBand++) |
739 |
gdalBands[iBand] = getRasterBand(iBand + 1);
|
740 |
|
741 |
} catch (GdalException e) {
|
742 |
e.printStackTrace(); |
743 |
} |
744 |
|
745 |
int x = (int) Math.ceil(tl.getX()); |
746 |
int y = (int) Math.ceil(tl.getY()); |
747 |
|
748 |
if ((x + nWidth) > gdalBands[0].getRasterBandXSize()) |
749 |
nWidth = gdalBands[0].getRasterBandXSize() - x;
|
750 |
|
751 |
if ((y + nHeight) > gdalBands[0].getRasterBandYSize()) |
752 |
nHeight = gdalBands[0].getRasterBandYSize() - y;
|
753 |
|
754 |
int yMax = y + nHeight;
|
755 |
readData(buf, bandList, x, y, nWidth, yMax); |
756 |
} |
757 |
|
758 |
/**
|
759 |
* Lee una ventana de datos con resampleo a partir de coordenadas reales. Este m?todo lee la
|
760 |
* ventana de una vez cargando los datos de un golpe en el buffer. Las coordenadas se solicitan
|
761 |
* en coordenadas del mundo real por lo que estas pueden caer en cualquier parte de un pixel.
|
762 |
* Esto se hace m?s evidente cuando supersampleamos en la petici?n, es decir el buffer de de
|
763 |
* mayor tama?o que el n?mero de pixels solicitado.
|
764 |
*
|
765 |
* Para resolver esto escribiremos con la funci?n readRaster los datos sobre un buffer mayor
|
766 |
* que el solicitado. Despu?s calcularemos el desplazamiento en pixels dentro de este buffer
|
767 |
* de mayor tama?o hasta llegar a la coordenada real donde comienza la petici?n real que ha
|
768 |
* hecho el usuario. Esto es as? porque cuando supersampleamos no queremos los pixeles del
|
769 |
* raster de disco completos sino que en los bordes del buffer quedan cortados.
|
770 |
*
|
771 |
* @param buf Buffer donde se almacenan los datos
|
772 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
773 |
* @param dWorldTLX Posici?n X en pixeles
|
774 |
* @param dWorldTLY Posici?n Y en pixeles
|
775 |
* @param nWidth Ancho en pixeles
|
776 |
* @param nHeight Alto en pixeles
|
777 |
* @param bufWidth Ancho del buffer
|
778 |
* @param bufHeight Alto del buffer
|
779 |
* @throws GdalException
|
780 |
*/
|
781 |
public void readWindow(RasterBuf buf, BandList bandList, double dWorldTLX, double dWorldTLY, double dWorldBRX, double dWorldBRY, |
782 |
double nWidth, double nHeight, int bufWidth, int bufHeight) throws GdalException { |
783 |
setView(dWorldTLX, dWorldTLY, dWorldBRX, dWorldBRY, bufWidth, bufHeight, new boolean[]{true, false}); |
784 |
Point2D tl = worldToRaster(new Point2D.Double(dWorldTLX, dWorldTLY)); |
785 |
Point2D br = worldToRaster(new Point2D.Double(dWorldBRX, dWorldBRY)); |
786 |
|
787 |
if(gdalBands.length == 0) |
788 |
return;
|
789 |
|
790 |
selectGdalBands(buf.getBandCount()); |
791 |
|
792 |
int x = (int) tl.getX(); |
793 |
int y = (int) tl.getY(); |
794 |
int endX = (int) Math.ceil(br.getX()); |
795 |
int endY = (int) Math.ceil(br.getY()); |
796 |
|
797 |
int stpX = 0; |
798 |
int stpY = 0; |
799 |
|
800 |
if(bufWidth > Math.ceil(nWidth)){ |
801 |
stpX = (int)(((tl.getX() - x) * bufWidth) / nWidth);
|
802 |
bufWidth = (int)((Math.abs(endX - x) * bufWidth) / nWidth); |
803 |
} |
804 |
if(bufHeight > Math.ceil(nHeight)){ |
805 |
stpY = (int)(((tl.getY() - y) * bufHeight) / nHeight);
|
806 |
bufHeight = (int)((Math.abs(endY - y) * bufHeight) / nHeight); |
807 |
} |
808 |
|
809 |
nWidth = (int)Math.abs(endX - x); |
810 |
nHeight = (int)Math.abs(endY - y); |
811 |
|
812 |
if ((x + nWidth) > gdalBands[0].getRasterBandXSize()) |
813 |
nWidth = gdalBands[0].getRasterBandXSize() - x;
|
814 |
|
815 |
if ((y + nHeight) > gdalBands[0].getRasterBandYSize()) |
816 |
nHeight = gdalBands[0].getRasterBandYSize() - y;
|
817 |
|
818 |
int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
819 |
readData(buf, bandList, x, y, (int)nWidth, (int)nHeight, bufWidth, bufHeight, stpX, stpY, stpBuffer); |
820 |
} |
821 |
|
822 |
/**
|
823 |
* Lee una ventana de datos sin resampleo a partir de coordenadas en pixeles. Esta funci?n es usuada por
|
824 |
* readWindow para coordenadas reales y readWindow en coordenadas pixel.
|
825 |
* @param buf Buffer donde se almacenan los datos
|
826 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
827 |
* @param x Posici?n X en pixeles
|
828 |
* @param y Posici?n Y en pixeles
|
829 |
* @param w Ancho en pixeles
|
830 |
* @param yMax altura m?xima de y
|
831 |
* @throws GdalException
|
832 |
*/
|
833 |
private void readData(RasterBuf buf, BandList bandList, int x, int y, int w, int h, int bufWidth, int bufHeight, int stpX, int stpY, int[] stepBuffer) throws GdalException { |
834 |
//TODO: FUNCIONALIDAD: Orientaci?n del raster. orientaion[0] para pixels en X y orientation[1] para pixels en Y
|
835 |
GdalBuffer gdalBuf = null;
|
836 |
for(int iBand = 0; iBand < gdalBands.length; iBand++){ |
837 |
int[] drawableBands = bandList.getBufferBandToDraw(fileName, iBand); |
838 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
839 |
continue;
|
840 |
int init = (int)((bufWidth * stpY) + stpX); //Pos inicial. Desplazamos stpX pixels hacia la derecha y bajamos stpY lineas |
841 |
int pos = init;
|
842 |
gdalBuf = gdalBands[iBand].readRaster(x, y, w, h, bufWidth, bufHeight, dataType); |
843 |
if(dataType == Gdal.GDT_Byte){
|
844 |
for (int line = stepBuffer[1]; line < stepBuffer[3]/*buf.getHeight()*/; line++) { |
845 |
pos = (int)((bufWidth * line) + init);
|
846 |
for (int col = stepBuffer[0]; col < stepBuffer[2]/*buf.getWidth()*/; col ++){ |
847 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ //Una misma banda del raster puede ir dibujada en varias bandas del buffer. |
848 |
buf.setElemByte(line, col, drawableBands[drawBands], gdalBuf.buffByte[pos]); |
849 |
} |
850 |
pos ++; |
851 |
} |
852 |
} |
853 |
}else if((dataType == Gdal.GDT_UInt16) || (dataType == Gdal.GDT_Int16) || (dataType == Gdal.GDT_CInt16)){ |
854 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
855 |
pos = (int)((bufWidth * line) + init);
|
856 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
857 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ //Una misma banda del raster puede ir dibujada en varias bandas del buffer. |
858 |
buf.setElemShort(line, col, drawableBands[drawBands], gdalBuf.buffShort[pos]); |
859 |
} |
860 |
pos ++; |
861 |
} |
862 |
} |
863 |
}else if((dataType == Gdal.GDT_UInt32) || (dataType == Gdal.GDT_Int32) || (dataType == Gdal.GDT_CInt32)){ |
864 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
865 |
pos = (int)((bufWidth * line) + init);
|
866 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
867 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ //Una misma banda del raster puede ir dibujada en varias bandas del buffer. |
868 |
buf.setElemInt(line, col, drawableBands[drawBands], gdalBuf.buffInt[pos]); |
869 |
} |
870 |
pos ++; |
871 |
} |
872 |
} |
873 |
}else if(dataType == Gdal.GDT_Float32){ |
874 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
875 |
pos = (int)((bufWidth * line) + init);
|
876 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
877 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ //Una misma banda del raster puede ir dibujada en varias bandas del buffer. |
878 |
buf.setElemFloat(line, col, drawableBands[drawBands], gdalBuf.buffFloat[pos]); |
879 |
} |
880 |
pos ++; |
881 |
} |
882 |
} |
883 |
}else if(dataType == Gdal.GDT_Float64){ |
884 |
for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
885 |
pos = (int)((bufWidth * line) + init);
|
886 |
for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++){ |
887 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++){ //Una misma banda del raster puede ir dibujada en varias bandas del buffer. |
888 |
buf.setElemDouble(line, col, drawableBands[drawBands], gdalBuf.buffDouble[pos]); |
889 |
} |
890 |
pos ++; |
891 |
} |
892 |
} |
893 |
} |
894 |
} |
895 |
} |
896 |
|
897 |
|
898 |
/**
|
899 |
* Lee una ventana de datos sin resampleo a partir de coordenadas reales.
|
900 |
* @param buf Buffer donde se almacenan los datos
|
901 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
902 |
* @param dWorldTLX Posici?n X superior izquierda en coord reales
|
903 |
* @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
904 |
* @param dWorldBRX Posici?n X inferior derecha en coord reales
|
905 |
* @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
906 |
* @param nWidth Ancho en pixeles del buffer
|
907 |
* @param nHeight Alto en pixeles del buffer
|
908 |
* @throws GdalException
|
909 |
*/
|
910 |
public void readWindowWithNoData(RasterBuf buf, BandList bandList, double dWorldTLX, double dWorldTLY,double dWorldBRX, double dWorldBRY, |
911 |
int nWidth, int nHeight) throws GdalException { |
912 |
Extent petExtent = new Extent(dWorldTLX, dWorldTLY, dWorldBRX, dWorldBRY);
|
913 |
if(dWorldTLX < bBoxWithoutRot.minX)
|
914 |
dWorldTLX = bBoxWithoutRot.minX; |
915 |
if(dWorldTLY > bBoxWithoutRot.maxY)
|
916 |
dWorldTLY = bBoxWithoutRot.maxY; |
917 |
if(dWorldBRX > bBoxWithoutRot.maxX)
|
918 |
dWorldBRX = bBoxWithoutRot.maxX; |
919 |
if(dWorldBRY < bBoxWithoutRot.minY)
|
920 |
dWorldBRY = bBoxWithoutRot.minY; |
921 |
setView(dWorldTLX, dWorldTLY, dWorldBRX, dWorldBRY, nWidth, nHeight, new boolean[]{true, false}); |
922 |
Point2D tl = worldToRaster(new Point2D.Double(dWorldTLX, dWorldTLY)); |
923 |
|
924 |
if(gdalBands.length == 0) |
925 |
return;
|
926 |
|
927 |
selectGdalBands(buf.getBandCount()); |
928 |
|
929 |
int x = (int) tl.getX(); |
930 |
int y = (int) tl.getY(); |
931 |
|
932 |
int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
933 |
//Si el buffer no se ajusta al extent entonces calculamos en que posici?n comienza a escribirse dentro del buffer
|
934 |
//ya que lo que cae fuera ser?n valores NoData
|
935 |
|
936 |
int[] wh = calcStepBuffer(petExtent, nWidth, nHeight, stpBuffer); |
937 |
if(x < 0) |
938 |
x = 0;
|
939 |
if(y < 0) |
940 |
y = 0;
|
941 |
readData(buf, bandList, x, y, wh[0], wh[1], wh[0], wh[1], 0, 0, stpBuffer); |
942 |
} |
943 |
|
944 |
/**
|
945 |
* Cuando se hace una petici?n de carga de buffer la extensi?n pedida puede estar ajustada a la extensi?n del raster
|
946 |
* o no estarlo. En caso de no estarlo los pixeles del buffer que caen fuera de la extensi?n del raster tendr?n valor
|
947 |
* de NoData. Esta funci?n calcula en que pixel del buffer hay que empezar a escribir en caso de que este sea mayor
|
948 |
* que los datos a leer.
|
949 |
* @param dWorldTLX Posici?n X superior izquierda en coord reales
|
950 |
* @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
951 |
* @param dWorldBRX Posici?n X inferior derecha en coord reales
|
952 |
* @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
953 |
* @param nWidth Ancho en pixeles del buffer
|
954 |
* @param nHeight Alto en pixeles del buffer
|
955 |
* @return desplazamiento dentro del buffer en X e Y
|
956 |
*/
|
957 |
private int[] calcStepBuffer(Extent dataExtent, int nWidth, int nHeight, int[] stpBuffer){ |
958 |
Extent imageExtent = new Extent(bBoxWithoutRot.minX, bBoxWithoutRot.minY, bBoxWithoutRot.maxX, bBoxWithoutRot.maxY);
|
959 |
Extent ajustDataExtent = Utilities.calculateAdjustedView(dataExtent, imageExtent);
|
960 |
if(!Utilities.compareExtents(dataExtent, ajustDataExtent)){ |
961 |
Point2D p1 = worldToRaster(new Point2D.Double(ajustDataExtent.minX(), ajustDataExtent.maxY())); |
962 |
Point2D p2 = worldToRaster(new Point2D.Double(ajustDataExtent.maxX(), ajustDataExtent.minY())); |
963 |
Point2D p3 = worldToRaster(new Point2D.Double(dataExtent.minX(), dataExtent.maxY())); |
964 |
Point2D p4 = worldToRaster(new Point2D.Double(dataExtent.maxX(), dataExtent.minY())); |
965 |
//Ese es el ancho y alto q tendr?a el buffer en caso de haberse ajustado
|
966 |
int w = (int)Math.abs(Math.ceil(p2.getX()) - Math.floor(p1.getX())); |
967 |
int h = (int)Math.abs(Math.floor(p1.getY()) - Math.ceil(p2.getY())); |
968 |
|
969 |
stpBuffer[0] = (int)(p1.getX() + (-p3.getX())); |
970 |
stpBuffer[1] = (int)(p1.getY() + (-p3.getY())); |
971 |
stpBuffer[2] = stpBuffer[0] + w; |
972 |
stpBuffer[3] = stpBuffer[1] + h; |
973 |
return new int[]{w, h}; |
974 |
} |
975 |
return new int[]{nWidth, nHeight}; |
976 |
} |
977 |
|
978 |
/**
|
979 |
* Selecciona bandas y overview en el objeto GdalRasterBand[] para el n?mero de bandas solicitado.
|
980 |
* @param nbands N?mero de bandas solicitado.
|
981 |
* @throws GdalException
|
982 |
*/
|
983 |
public void selectGdalBands(int nbands)throws GdalException{ |
984 |
gdalBands = new GdalRasterBand[nbands];
|
985 |
//Selecciona las bandas y los overviews necesarios
|
986 |
gdalBands[0] = getRasterBand(1); |
987 |
for(int i = 0; i < nbands; i++) |
988 |
gdalBands[i] = gdalBands[0];
|
989 |
|
990 |
setDataType(gdalBands[0].getRasterDataType());
|
991 |
|
992 |
for(int i = 2; i <= nbands; i++){ |
993 |
if(getRasterCount() >= i){
|
994 |
gdalBands[i - 1] = getRasterBand(i);
|
995 |
for(int j = i; j < nbands; j++) |
996 |
gdalBands[j] = gdalBands[i - 1];
|
997 |
} |
998 |
} |
999 |
|
1000 |
if (currentOverview > 0) { |
1001 |
gdalBands[0] = gdalBands[0].getOverview(currentOverview); |
1002 |
for(int i = 2; i <= nbands; i++){ |
1003 |
if(getRasterCount() >= i)
|
1004 |
gdalBands[i - 1] = gdalBands[i - 1].getOverview(currentOverview); |
1005 |
} |
1006 |
} |
1007 |
} |
1008 |
|
1009 |
/**
|
1010 |
* Lee una ventana de datos sin resampleo a partir de coordenadas en pixeles.
|
1011 |
* @param buf Buffer donde se almacenan los datos
|
1012 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
1013 |
* @param x Posici?n X en pixeles
|
1014 |
* @param y Posici?n Y en pixeles
|
1015 |
* @param w Ancho en pixeles
|
1016 |
* @param h Alto en pixeles
|
1017 |
* @throws GdalException
|
1018 |
*/
|
1019 |
public void readWindow(RasterBuf buf, BandList bandList, int x, int y, int w, int h) throws GdalException { |
1020 |
GdalBuffer gdalBuf = null;
|
1021 |
gdalBands = new GdalRasterBand[getRasterCount()];
|
1022 |
isSupersampling = false;
|
1023 |
if(gdalBands.length == 0) |
1024 |
return;
|
1025 |
|
1026 |
// Selecciona las bandas
|
1027 |
gdalBands[0] = getRasterBand(1); |
1028 |
setDataType(gdalBands[0].getRasterDataType());
|
1029 |
for(int iBand = 1; iBand < gdalBands.length; iBand++) |
1030 |
gdalBands[iBand] = getRasterBand(iBand + 1);
|
1031 |
|
1032 |
int yMax = y + h;
|
1033 |
readData(buf, bandList, x, y, w, yMax); |
1034 |
} |
1035 |
|
1036 |
/**
|
1037 |
* Lee una ventana de datos sin resampleo a partir de coordenadas en pixeles. Esta funci?n es usuada por
|
1038 |
* readWindow para coordenadas reales y readWindow en coordenadas pixel.
|
1039 |
* @param buf Buffer donde se almacenan los datos
|
1040 |
* @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
1041 |
* @param x Posici?n X en pixeles
|
1042 |
* @param y Posici?n Y en pixeles
|
1043 |
* @param w Ancho en pixeles
|
1044 |
* @param yMax altura m?xima de y
|
1045 |
* @throws GdalException
|
1046 |
*/
|
1047 |
private void readData(RasterBuf buf, BandList bandList, int x, int y, int w, int yMax) throws GdalException { |
1048 |
GdalBuffer gdalBuf = null;
|
1049 |
int rasterBufLine;
|
1050 |
for(int iBand = 0; iBand < gdalBands.length; iBand++){ |
1051 |
int[] drawableBands = bandList.getBufferBandToDraw(fileName, iBand); |
1052 |
if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
1053 |
continue;
|
1054 |
if(dataType == Gdal.GDT_Byte){
|
1055 |
for (int line = y; line < yMax; line++) { |
1056 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType); |
1057 |
rasterBufLine = line - y; |
1058 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) |
1059 |
buf.setLineInBandByte(gdalBuf.buffByte, rasterBufLine, drawableBands[drawBands]); |
1060 |
} |
1061 |
}else if((dataType == Gdal.GDT_UInt16) || (dataType == Gdal.GDT_Int16) || (dataType == Gdal.GDT_CInt16)){ |
1062 |
for (int line = y; line < yMax; line++) { |
1063 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType); |
1064 |
rasterBufLine = line - y; |
1065 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) |
1066 |
buf.setLineInBandShort(gdalBuf.buffShort, rasterBufLine, drawableBands[drawBands]); |
1067 |
} |
1068 |
}else if((dataType == Gdal.GDT_UInt32) || (dataType == Gdal.GDT_Int32) || (dataType == Gdal.GDT_CInt32)){ |
1069 |
for (int line = y; line < yMax; line++) { |
1070 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType); |
1071 |
rasterBufLine = line - y; |
1072 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) |
1073 |
buf.setLineInBandInt(gdalBuf.buffInt, rasterBufLine, drawableBands[drawBands]); |
1074 |
} |
1075 |
}else if(dataType == Gdal.GDT_Float32){ |
1076 |
for (int line = y; line < yMax; line++) { |
1077 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType); |
1078 |
rasterBufLine = line - y; |
1079 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) |
1080 |
buf.setLineInBandFloat(gdalBuf.buffFloat, rasterBufLine, drawableBands[drawBands]); |
1081 |
} |
1082 |
}else if(dataType == Gdal.GDT_Float64){ |
1083 |
for (int line = y; line < yMax; line++) { |
1084 |
gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType); |
1085 |
rasterBufLine = line - y; |
1086 |
for(int drawBands = 0; drawBands < drawableBands.length; drawBands++) |
1087 |
buf.setLineInBandDouble(gdalBuf.buffDouble, rasterBufLine, drawableBands[drawBands]); |
1088 |
} |
1089 |
} |
1090 |
} |
1091 |
} |
1092 |
|
1093 |
/* (non-Javadoc)
|
1094 |
* @see org.cresques.io.GeoRasterFile#getData(int, int, int)
|
1095 |
*/
|
1096 |
public Object[] getData(int x, int y) { |
1097 |
try {
|
1098 |
Object[] data = new Object[getRasterCount()]; |
1099 |
for(int i = 0; i < getRasterCount(); i++){ |
1100 |
GdalRasterBand rb = getRasterBand(i + 1);
|
1101 |
GdalBuffer r = rb.readRaster(x, y, 1, 1, 1, 1, dataType); |
1102 |
switch(dataType){
|
1103 |
case 0: break; //Sin tipo |
1104 |
case 1: data[i] = new Integer(r.buffByte[0]); //Buffer byte (8) |
1105 |
break;
|
1106 |
case 2: //Buffer short (16) |
1107 |
case 3: data[i] = new Integer(r.buffShort[0]); //Buffer short (16) |
1108 |
break;
|
1109 |
case 4: //Buffer int (32) |
1110 |
case 5: data[i] = new Integer(r.buffInt[0]); //Buffer int (32) |
1111 |
break;
|
1112 |
case 6: data[i] = new Float(r.buffFloat[0]); //Buffer float (32) |
1113 |
break;
|
1114 |
case 7: data[i] = new Double(r.buffDouble[0]); //Buffer double (64) |
1115 |
break;
|
1116 |
} |
1117 |
} |
1118 |
return data;
|
1119 |
} catch (GdalException e) {
|
1120 |
return null; |
1121 |
} |
1122 |
} |
1123 |
|
1124 |
void pintaInfo() {
|
1125 |
try {
|
1126 |
//System.out.println("Origin = "+originX+","+originY);
|
1127 |
//System.out.println("Origin = "+this.);
|
1128 |
System.out.println("GeoTransform:"); |
1129 |
GeoTransform trans = getGeoTransform(); |
1130 |
for (int i=0; i<6; i++) |
1131 |
System.out.println(" param["+i+"]="+trans.adfgeotransform[i]); |
1132 |
System.out.println("Metadata:"); |
1133 |
String [] metadata = getMetadata(); |
1134 |
for (int i=0; i<metadata.length; i++) { |
1135 |
System.out.println(metadata[i]);
|
1136 |
} |
1137 |
} catch (GdalException e) {
|
1138 |
|
1139 |
} |
1140 |
|
1141 |
} |
1142 |
|
1143 |
void pintaPaleta() {
|
1144 |
} |
1145 |
|
1146 |
public int getBlockSize(){ |
1147 |
return this.getBlockSize(); |
1148 |
} |
1149 |
|
1150 |
/**
|
1151 |
* Obtiene el objeto que contiene los metadatos
|
1152 |
*/
|
1153 |
public Metadata getMetadataJavaObject() {
|
1154 |
return metadata;
|
1155 |
} |
1156 |
|
1157 |
/**
|
1158 |
* Obtiene el flag que dice si la imagen est? o no georreferenciada
|
1159 |
* @return true si est? georreferenciada y false si no lo est?.
|
1160 |
*/
|
1161 |
public boolean isGeoreferenced() { |
1162 |
return georeferenced;
|
1163 |
} |
1164 |
|
1165 |
} |
1166 |
|
1167 |
/**
|
1168 |
* @author Luis W. Sevilla
|
1169 |
*/
|
1170 |
public class GdalFile extends GeoRasterFile { |
1171 |
public final static int BAND_HEIGHT = 64; |
1172 |
protected GdalNative file = null; |
1173 |
/**
|
1174 |
* Tama?o de pixel para las imagenes con fichero RMF. No podemos salvarlo en file porque es necesario conocer el
|
1175 |
* tama?o de pixel asignado por rl .rmf y el tama?o de pixel real.
|
1176 |
*/
|
1177 |
private double pixelSizeX = 0D, pixelSizeY = 0D; |
1178 |
|
1179 |
private Extent v = null; |
1180 |
|
1181 |
public GdalFile(IProjection proj, String fName)throws NotSupportedExtensionException{ |
1182 |
super(proj, fName);
|
1183 |
extent = new Extent();
|
1184 |
try {
|
1185 |
file = new GdalNative(fName, this); |
1186 |
load(); |
1187 |
readGeoInfo(fName); |
1188 |
bandCount = file.getRasterCount(); |
1189 |
if ( bandCount > 2) { |
1190 |
setBand(RED_BAND, 0);
|
1191 |
setBand(GREEN_BAND, 1);
|
1192 |
setBand(BLUE_BAND, 2);
|
1193 |
} else
|
1194 |
setBand(RED_BAND|GREEN_BAND|BLUE_BAND, 0);
|
1195 |
} catch (GdalException e) {
|
1196 |
throw new NotSupportedExtensionException("Extension not supported"); |
1197 |
} catch(Exception e){ |
1198 |
System.out.println("Error en GdalOpen"); |
1199 |
e.printStackTrace(); |
1200 |
file = null;
|
1201 |
} |
1202 |
|
1203 |
//Obtenemos el tipo de dato de gdal y lo convertimos el de RasterBuf
|
1204 |
setDataType(org.cresques.util.Utilities.getRasterBufTypeFromGdalType(file.getDataType())); |
1205 |
} |
1206 |
|
1207 |
/**
|
1208 |
* Obtenemos o calculamos el extent de la imagen.
|
1209 |
*/
|
1210 |
public GeoFile load() {
|
1211 |
extent = new Extent(file.bBoxRot.minX, file.bBoxRot.minY, file.bBoxRot.maxX, file.bBoxRot.maxY);
|
1212 |
requestExtent = new Extent(file.bBoxWithoutRot.minX, file.bBoxWithoutRot.minY, file.bBoxWithoutRot.maxX, file.bBoxWithoutRot.maxY);
|
1213 |
return this; |
1214 |
} |
1215 |
|
1216 |
/**
|
1217 |
* Cierra el fichero de imagen
|
1218 |
*/
|
1219 |
public void close() { |
1220 |
try {
|
1221 |
if(file != null){ |
1222 |
file.close(); |
1223 |
file = null;
|
1224 |
} |
1225 |
} catch (GdalException e) {
|
1226 |
// TODO Auto-generated catch block
|
1227 |
e.printStackTrace(); |
1228 |
} |
1229 |
} |
1230 |
|
1231 |
/**
|
1232 |
* Asigna a cada banda R,G o B una banda de la imagen
|
1233 |
*/
|
1234 |
public void setBand(int flag, int bandNr) { |
1235 |
super.setBand(flag, bandNr);
|
1236 |
if ((flag & GeoRasterFile.RED_BAND) == GeoRasterFile.RED_BAND) file.rBandNr = bandNr+1; |
1237 |
if ((flag & GeoRasterFile.GREEN_BAND) == GeoRasterFile.GREEN_BAND) file.gBandNr = bandNr+1; |
1238 |
if ((flag & GeoRasterFile.BLUE_BAND) == GeoRasterFile.BLUE_BAND) file.bBandNr = bandNr+1; |
1239 |
} |
1240 |
|
1241 |
/**
|
1242 |
* Asigna el extent de la vista actual. existe un fichero .rmf debemos hacer una transformaci?n
|
1243 |
* de la vista asignada ya que la petici?n viene en coordenadas del fichero .rmf y la vista (v)
|
1244 |
* ha de estar en coordenadas del fichero.
|
1245 |
*/
|
1246 |
public void setView(Extent e) { |
1247 |
if(rmfExists){
|
1248 |
|
1249 |
Point2D.Double petInit = null, petEnd = null; |
1250 |
try{
|
1251 |
petInit = new Point2D.Double(e.minX(), e.maxY()); |
1252 |
petEnd = new Point2D.Double(e.maxX(), e.minY()); |
1253 |
transformRMF.inverseTransform(petInit, petInit); |
1254 |
transformRMF.inverseTransform(petEnd, petEnd); |
1255 |
transformTFW.transform(petInit, petInit); |
1256 |
transformTFW.transform(petEnd, petEnd); |
1257 |
}catch(NoninvertibleTransformException ex){} |
1258 |
double h = file.bBoxWithoutRot.maxY - file.bBoxWithoutRot.minY;
|
1259 |
if(!file.isGeoreferenced())
|
1260 |
v = new Extent( petInit.getX(), h - petInit.getY(), petEnd.getX(), h - petEnd.getY());
|
1261 |
else
|
1262 |
v = new Extent( petInit.getX(), petInit.getY(), petEnd.getX(), petEnd.getY());
|
1263 |
|
1264 |
}else
|
1265 |
v = new Extent(e.minX(), e.minY(), e.maxX(), e.maxY());
|
1266 |
} |
1267 |
|
1268 |
/**
|
1269 |
* Calcula la transformaci?n que se produce sobre la vista cuando la imagen tiene un fichero .rmf
|
1270 |
* asociado. En Gdal el origen de coordenadas en Y es el valor m?nimo y crece hasta el m?ximo. De la
|
1271 |
* misma forma calcula la matriz de transformaci?n de la cabecera del fichero o del world file asociado
|
1272 |
* @param originX Origen de la imagen en la coordenada X
|
1273 |
* @param originY Origen de la imagen en la coordenada Y
|
1274 |
*/
|
1275 |
public void setExtentTransform(double originX, double originY, double psX, double psY) { |
1276 |
transformRMF.setToTranslation(originX, originY); |
1277 |
transformRMF.scale(psX, psY); |
1278 |
|
1279 |
if(file.trans != null){ |
1280 |
transformTFW.setToTranslation(file.trans.adfgeotransform[0], file.trans.adfgeotransform[3]); |
1281 |
transformTFW.scale(file.trans.adfgeotransform[1], file.trans.adfgeotransform[5]); |
1282 |
} |
1283 |
} |
1284 |
|
1285 |
/**
|
1286 |
* Obtiene extent de la vista actual
|
1287 |
*/
|
1288 |
public Extent getView() {
|
1289 |
return v;
|
1290 |
} |
1291 |
|
1292 |
/**
|
1293 |
* Obtiene la anchura del fichero
|
1294 |
*/
|
1295 |
public int getWidth() { |
1296 |
return file.width;
|
1297 |
} |
1298 |
|
1299 |
/**
|
1300 |
* Obtiene la altura del fichero
|
1301 |
*/
|
1302 |
public int getHeight() { |
1303 |
return file.height;
|
1304 |
} |
1305 |
|
1306 |
/* (non-Javadoc)
|
1307 |
* @see org.cresques.io.GeoRasterFile#reProject(org.cresques.cts.ICoordTrans)
|
1308 |
*/
|
1309 |
public void reProject(ICoordTrans rp) { |
1310 |
// TODO Auto-generated method stub
|
1311 |
} |
1312 |
|
1313 |
/**
|
1314 |
* Obtiene la orientaci?n de la imagen a partir del signo del tama?o de pixel para poder
|
1315 |
* asignarlo en el setView. Esto es util para poder conocer como debe leerse la image,
|
1316 |
* de abajo a arriba, de arriba a abajo, de izquierda a derecha o de derecha a izquierda.
|
1317 |
* La posici?n habitual es la que el pixel size en X es positivo y en Y negativo leyendose
|
1318 |
* en este caso las X de menor a mayor y las Y de mayor a menor. Los casos posibles son:
|
1319 |
* <UL>
|
1320 |
* <LI><B>X > 0; Y < 0;</B> {true, false}</LI>
|
1321 |
* <LI><B>X > 0; Y > 0;</B> {true, true}</LI>
|
1322 |
* <LI><B>X < 0; Y > 0;</B> {false, true}</LI>
|
1323 |
* <LI><B>X < 0; Y < 0;</B> {false, false}</LI>
|
1324 |
* </UL>
|
1325 |
*
|
1326 |
* @return
|
1327 |
*/
|
1328 |
private boolean[] getOrientation(){ |
1329 |
boolean[] orientation = {true, false}; |
1330 |
if(!rmfExists){
|
1331 |
if(file.trans != null && file.trans.adfgeotransform != null && file.trans.adfgeotransform[5] > 0) |
1332 |
orientation[1] = true; |
1333 |
if(file.trans != null && file.trans.adfgeotransform != null && file.trans.adfgeotransform[1] < 0) |
1334 |
orientation[0] = false; |
1335 |
}else{
|
1336 |
if(rmfTransform.getScaleY() > 0) |
1337 |
orientation[1] = true; |
1338 |
if(rmfTransform.getScaleX() < 0) |
1339 |
orientation[0] = false; |
1340 |
} |
1341 |
return orientation;
|
1342 |
} |
1343 |
|
1344 |
/* (non-Javadoc)
|
1345 |
* @see org.cresques.io.GeoRasterFile#updateImage(int, int, org.cresques.cts.ICoordTrans)
|
1346 |
*/
|
1347 |
public Image updateImage(int width, int height, ICoordTrans rp) { |
1348 |
int line, pRGBArray[] = null; |
1349 |
Image image = null; |
1350 |
|
1351 |
if (mustVerifySize()) {
|
1352 |
// Work out the correct aspect for the setView call.
|
1353 |
double dFileAspect = (double)v.width()/(double)v.height(); |
1354 |
double dWindowAspect = (double)width /(double)height; |
1355 |
|
1356 |
if (dFileAspect > dWindowAspect) {
|
1357 |
height =(int)((double)width/dFileAspect); |
1358 |
} else {
|
1359 |
width = (int)((double)height*dFileAspect); |
1360 |
} |
1361 |
} |
1362 |
|
1363 |
// Set the view
|
1364 |
file.setView(v.minX(), v.maxY(), v.maxX(), v.minY(), width, height, getOrientation()); |
1365 |
setStep(file.stepArrayX, file.stepArrayY); |
1366 |
|
1367 |
if(width<=0)width=1; |
1368 |
if(height<=0)height=1; |
1369 |
|
1370 |
image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); |
1371 |
//image = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB);
|
1372 |
pRGBArray = new int[width/**BAND_HEIGHT*/]; |
1373 |
try {
|
1374 |
//int nLin = height % BAND_HEIGHT;
|
1375 |
file.setAlpha(getAlpha()); |
1376 |
setBand(RED_BAND, rBandNr); |
1377 |
setBand(GREEN_BAND, gBandNr); |
1378 |
setBand(BLUE_BAND, bBandNr); |
1379 |
for (line=0; line < height; line++) { //+=BAND_HEIGHT) { |
1380 |
//int bandH = Math.min(BAND_HEIGHT, height-line);
|
1381 |
//file.readBandRGBA(bandH, BAND_HEIGHT, pRGBArray);
|
1382 |
file.readLineRGBA(pRGBArray); |
1383 |
setRGBLine((BufferedImage) image, 0, line, width, 1/*bandH*/, pRGBArray, 0, width); |
1384 |
} |
1385 |
} catch (Exception e) { |
1386 |
// TODO Auto-generated catch block
|
1387 |
e.printStackTrace(); |
1388 |
} |
1389 |
|
1390 |
return image;
|
1391 |
} |
1392 |
|
1393 |
public RasterBuf getRaster(int width, int height, ICoordTrans rp) { |
1394 |
int line;
|
1395 |
RasterBuf raster = null;
|
1396 |
|
1397 |
if(mustVerifySize()){
|
1398 |
// Work out the correct aspect for the setView call.
|
1399 |
double dFileAspect = (double)v.width()/(double)v.height(); |
1400 |
double dWindowAspect = (double)width /(double)height; |
1401 |
|
1402 |
if (dFileAspect > dWindowAspect) {
|
1403 |
height =(int)((double)width/dFileAspect); |
1404 |
} else {
|
1405 |
width = (int)((double)height*dFileAspect); |
1406 |
} |
1407 |
} |
1408 |
|
1409 |
// Set the view
|
1410 |
boolean[] orientation = getOrientation(); |
1411 |
file.setView(v.minX(), v.maxY(), v.maxX(), v.minY(), |
1412 |
width, height, orientation); |
1413 |
setStep(file.stepArrayX, file.stepArrayY); |
1414 |
|
1415 |
try {
|
1416 |
//Esta funci?n se usa para la renderizaci?n, por eso se crean 4 bandas a pi?on fijo
|
1417 |
raster = new RasterBuf(getDataType(), width, height, 4, true); |
1418 |
|
1419 |
file.setAlpha(getAlpha()); |
1420 |
setBand(RED_BAND, rBandNr); |
1421 |
setBand(GREEN_BAND, gBandNr); |
1422 |
setBand(BLUE_BAND, bBandNr); |
1423 |
|
1424 |
switch(getDataType()){
|
1425 |
case RasterBuf.TYPE_BYTE:
|
1426 |
for (line = 0; line < height; line++) |
1427 |
file.readLine(raster.getLineByte(line)); |
1428 |
break;
|
1429 |
case RasterBuf.TYPE_SHORT:;
|
1430 |
for (line = 0; line < height; line++) |
1431 |
file.readLine(raster.getLineShort(line)); |
1432 |
break;
|
1433 |
case RasterBuf.TYPE_INT:
|
1434 |
for (line = 0; line < height; line++) |
1435 |
file.readLine(raster.getLineInt(line)); |
1436 |
break;
|
1437 |
case RasterBuf.TYPE_FLOAT:
|
1438 |
for (line = 0; line < height; line++) |
1439 |
file.readLine(raster.getLineFloat(line)); |
1440 |
break;
|
1441 |
case RasterBuf.TYPE_DOUBLE:
|
1442 |
for (line = 0; line < height; line++) |
1443 |
file.readLine(raster.getLineDouble(line)); |
1444 |
break;
|
1445 |
case RasterBuf.TYPE_UNDEFINED:break; |
1446 |
} |
1447 |
|
1448 |
} catch (Exception e) { |
1449 |
e.printStackTrace(); |
1450 |
} |
1451 |
|
1452 |
return raster;
|
1453 |
} |
1454 |
|
1455 |
/**
|
1456 |
* Asigna al objeto Image los valores con los dato de la imagen contenidos en el
|
1457 |
* vector de enteros.
|
1458 |
* @param image imagen con los datos actuales
|
1459 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
1460 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
1461 |
* @param w Ancho de la imagen
|
1462 |
* @param h Alto de la imagen
|
1463 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
1464 |
* @param offset desplazamiento
|
1465 |
* @param scansize tama?o de imagen recorrida por cada p
|
1466 |
*/
|
1467 |
protected void setRGBLine(BufferedImage image, int startX, int startY, int w, int h, int[] rgbArray, |
1468 |
int offset, int scansize) { |
1469 |
image.setRGB(startX, startY, w, h, rgbArray, offset, scansize); |
1470 |
} |
1471 |
|
1472 |
/**
|
1473 |
* Asigna al objeto Image la mezcla entre los valores que ya tiene y los valores
|
1474 |
* con los dato de la imagen contenidos en el vector de enteros. De los valores RGB
|
1475 |
* que ya contiene se mantienen las bandas que no coinciden con el valor de flags. La
|
1476 |
* banda correspondiente a flags es sustituida por los datos del vector.
|
1477 |
* @param image imagen con los datos actuales
|
1478 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
1479 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
1480 |
* @param w Ancho de la imagen
|
1481 |
* @param h Alto de la imagen
|
1482 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
1483 |
* @param offset desplazamiento
|
1484 |
* @param scansize tama?o de imagen recorrida por cada paso
|
1485 |
* @param flags banda que se va a sustituir (Ctes de GeoRasterFile)
|
1486 |
*/
|
1487 |
protected void setRGBLine(BufferedImage image, int startX, int startY, int w, int h, int[] rgbArray, |
1488 |
int offset, int scansize, int flags) { |
1489 |
int [] line = new int[rgbArray.length]; |
1490 |
image.getRGB(startX, startY, w, h, line, offset, scansize); |
1491 |
if (flags == GeoRasterFile.RED_BAND)
|
1492 |
for (int i=0; i<line.length; i++) |
1493 |
line[i] = (line[i] & 0x0000ffff) | (rgbArray[i] & 0xffff0000); |
1494 |
else if (flags == GeoRasterFile.GREEN_BAND) |
1495 |
for (int i=0; i<line.length; i++) |
1496 |
line[i] = (line[i] & 0x00ff00ff) | (rgbArray[i] & 0xff00ff00); |
1497 |
else if (flags == GeoRasterFile.BLUE_BAND) |
1498 |
for (int i=0; i<line.length; i++) |
1499 |
line[i] = (line[i] & 0x00ffff00) | (rgbArray[i] & 0xff0000ff); |
1500 |
image.setRGB(startX, startY, w, h, line, offset, scansize); |
1501 |
} |
1502 |
|
1503 |
/**
|
1504 |
* Asigna al objeto Image la mezcla entre los valores que ya tiene y los valores
|
1505 |
* con los dato de la imagen contenidos en el vector de enteros. De los valores RGB
|
1506 |
* que ya contiene se mantienen las bandas que no coinciden con el valor de flags. La
|
1507 |
* banda correspondiente a flags es sustituida por los datos del vector.
|
1508 |
* @param image imagen con los datos actuales
|
1509 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
1510 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
1511 |
* @param w Ancho de la imagen
|
1512 |
* @param h Alto de la imagen
|
1513 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
1514 |
* @param offset desplazamiento
|
1515 |
* @param scansize tama?o de imagen recorrida por cada paso
|
1516 |
* @param origBand Banda origen del GeoRasterFile
|
1517 |
* @param destBandFlag banda que se va a sustituir (Ctes de GeoRasterFile)
|
1518 |
*/
|
1519 |
protected void setRGBLine(BufferedImage image, int startX, int startY, int w, int h, int[] rgbArray, |
1520 |
int offset, int scansize, int origBand, int destBandFlag) { |
1521 |
int [] line = new int[rgbArray.length]; |
1522 |
image.getRGB(startX, startY, w, h, line, offset, scansize); |
1523 |
if (origBand == 0 && destBandFlag == GeoRasterFile.RED_BAND) |
1524 |
for (int i=0; i<line.length; i++) |
1525 |
line[i] = (line[i] & 0x0000ffff) | (rgbArray[i] & 0xffff0000); |
1526 |
else if (origBand == 1 && destBandFlag == GeoRasterFile.GREEN_BAND) |
1527 |
for (int i=0; i<line.length; i++) |
1528 |
line[i] = (line[i] & 0x00ff00ff) | (rgbArray[i] & 0xff00ff00); |
1529 |
else if (origBand == 2 && destBandFlag == GeoRasterFile.BLUE_BAND) |
1530 |
for (int i=0; i<line.length; i++) |
1531 |
line[i] = (line[i] & 0x00ffff00) | (rgbArray[i] & 0xff0000ff); |
1532 |
|
1533 |
else if (origBand == 0 && destBandFlag == GeoRasterFile.GREEN_BAND) |
1534 |
for (int i=0; i<line.length; i++) |
1535 |
line[i] = (line[i] & 0xffff00ff) | ((rgbArray[i] & 0x00ff0000) >> 8) ; |
1536 |
else if (origBand == 0 && destBandFlag == GeoRasterFile.BLUE_BAND) |
1537 |
for (int i=0; i<line.length; i++) |
1538 |
line[i] = (line[i] & 0xffffff00) | ((rgbArray[i] & 0x00ff0000) >> 16); |
1539 |
else if (origBand == 1 && destBandFlag == GeoRasterFile.RED_BAND) |
1540 |
for (int i=0; i<line.length; i++) |
1541 |
line[i] = (line[i] & 0xff00ffff) | ((rgbArray[i] & 0x0000ff00) << 8); |
1542 |
|
1543 |
else if (origBand == 1 && destBandFlag == GeoRasterFile.BLUE_BAND) |
1544 |
for (int i=0; i<line.length; i++) |
1545 |
line[i] = (line[i] & 0xffffff00) | ((rgbArray[i] & 0x0000ff00) >> 8); |
1546 |
else if (origBand == 2 && destBandFlag == GeoRasterFile.RED_BAND) |
1547 |
for (int i=0; i<line.length; i++) |
1548 |
line[i] = (line[i] & 0xff00ffff) | ((rgbArray[i] & 0x000000ff) << 16); |
1549 |
else if (origBand == 2 && destBandFlag == GeoRasterFile.GREEN_BAND) |
1550 |
for (int i=0; i<line.length; i++) |
1551 |
line[i] = (line[i] & 0xffff00ff) | ((rgbArray[i] & 0x000000ff) << 8); |
1552 |
image.setRGB(startX, startY, w, h, line, offset, scansize); |
1553 |
} |
1554 |
|
1555 |
private void showOnOpen() { |
1556 |
// Report en la apertura (quitar)
|
1557 |
System.out.println("Fichero GDAL '"+getName()+"' abierto."); |
1558 |
System.out.println("Version = "+file.version); |
1559 |
System.out.println(" Size = ("+file.width+","+file.height+")"); |
1560 |
try {
|
1561 |
System.out.println(" NumBands = ("+file.getRasterCount()+")"); |
1562 |
} catch (GdalException e) {
|
1563 |
// TODO Auto-generated catch block
|
1564 |
e.printStackTrace(); |
1565 |
} |
1566 |
//file.pintaInfo();
|
1567 |
file.pintaPaleta(); |
1568 |
|
1569 |
} |
1570 |
|
1571 |
/* (non-Javadoc)
|
1572 |
* @see org.cresques.io.GeoRasterFile#updateImage(int, int, org.cresques.cts.ICoordTrans, java.awt.Image, int, int)
|
1573 |
*/
|
1574 |
public Image updateImage(int width, int height, ICoordTrans rp, Image img, int origBand, int destBandFlag)throws SupersamplingNotSupportedException{ |
1575 |
int line, pRGBArray[] = null; |
1576 |
|
1577 |
if(mustVerifySize()){
|
1578 |
// Work out the correct aspect for the setView call.
|
1579 |
double dFileAspect = (double)v.width()/(double)v.height(); |
1580 |
double dWindowAspect = (double)width /(double)height; |
1581 |
|
1582 |
if (dFileAspect > dWindowAspect) {
|
1583 |
height =(int)((double)width/dFileAspect); |
1584 |
} else {
|
1585 |
width = (int)((double)height*dFileAspect); |
1586 |
} |
1587 |
} |
1588 |
|
1589 |
// Set the view
|
1590 |
boolean[] orientation = getOrientation(); |
1591 |
file.setView(v.minX(), v.maxY(), v.maxX(), v.minY(), |
1592 |
width, height, orientation); |
1593 |
setStep(file.stepArrayX, file.stepArrayY); |
1594 |
|
1595 |
if(width<=0)width=1; |
1596 |
if(height<=0)height=1; |
1597 |
|
1598 |
pRGBArray = new int[width]; |
1599 |
try {
|
1600 |
setBand(RED_BAND, rBandNr); |
1601 |
setBand(GREEN_BAND, gBandNr); |
1602 |
setBand(BLUE_BAND, bBandNr); |
1603 |
file.setAlpha(getAlpha()); |
1604 |
if(img!=null){ |
1605 |
if(orientation[1]){ |
1606 |
for (line=0; line < height; line++) { |
1607 |
file.readLineRGBA(pRGBArray); |
1608 |
setRGBLine((BufferedImage) img, 0, height - 1 - line, width, 1, pRGBArray, 0, width, origBand, destBandFlag); |
1609 |
} |
1610 |
}else{
|
1611 |
for (line=0; line < height; line++) { |
1612 |
file.readLineRGBA(pRGBArray); |
1613 |
setRGBLine((BufferedImage) img, 0, line, width, 1, pRGBArray, 0, width, origBand, destBandFlag); |
1614 |
} |
1615 |
} |
1616 |
return img;
|
1617 |
}else{
|
1618 |
Image image = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); |
1619 |
if(orientation[1]){ |
1620 |
for (line=0; line < height; line++) { |
1621 |
file.readLineRGBA(pRGBArray); |
1622 |
setRGBLine((BufferedImage) image, 0, height - 1 - line, width, 1, pRGBArray, 0, width); |
1623 |
} |
1624 |
}else{
|
1625 |
for (line=0; line < height; line++) { |
1626 |
file.readLineRGBA(pRGBArray); |
1627 |
setRGBLine((BufferedImage) image, 0, line, width, 1, pRGBArray, 0, width); |
1628 |
} |
1629 |
} |
1630 |
return image;
|
1631 |
} |
1632 |
} catch (Exception e) { |
1633 |
// TODO Auto-generated catch block
|
1634 |
e.printStackTrace(); |
1635 |
} |
1636 |
|
1637 |
return img;
|
1638 |
} |
1639 |
|
1640 |
/* (non-Javadoc)
|
1641 |
* @see org.cresques.io.GeoRasterFile#getData(int, int, int)
|
1642 |
*/
|
1643 |
public Object getData(int x, int y, int band) { |
1644 |
if(file != null){ |
1645 |
Object[] data = file.getData(x, y); |
1646 |
return data[band];
|
1647 |
} |
1648 |
return null; |
1649 |
} |
1650 |
|
1651 |
/**
|
1652 |
* Devuelve los datos de una ventana solicitada
|
1653 |
* @param ulX coordenada X superior izda.
|
1654 |
* @param ulY coordenada Y superior derecha.
|
1655 |
* @param sizeX tama?o en X de la ventana.
|
1656 |
* @param sizeY tama?o en Y de la ventana.
|
1657 |
* @param band Banda solicitada.
|
1658 |
*/
|
1659 |
public byte[] getWindow(int ulX, int ulY, int sizeX, int sizeY, int band){ |
1660 |
|
1661 |
return null; |
1662 |
} |
1663 |
|
1664 |
public RasterBuf getWindowRaster(double x, double y, double w, double h, BandList bandList, RasterBuf rasterBuf) { |
1665 |
Extent selectedExtent = new Extent(x, y, x + w, y - h);
|
1666 |
setView(selectedExtent); |
1667 |
|
1668 |
int width = 0; |
1669 |
int height = 0; |
1670 |
if(file.trans != null){ |
1671 |
width = (int)Math.abs(selectedExtent.width() / file.trans.adfgeotransform[1]);//(int)(selectedExtent.width() * file.width) / extent.width(); |
1672 |
height = (int)Math.abs(selectedExtent.height() / file.trans.adfgeotransform[5]); |
1673 |
}else{
|
1674 |
width = (int)Math.abs(selectedExtent.width()); |
1675 |
height = (int)Math.abs(selectedExtent.height()); |
1676 |
} |
1677 |
|
1678 |
try {
|
1679 |
file.readWindow(rasterBuf, bandList, x, y, width, height); |
1680 |
} catch (Exception e) { |
1681 |
e.printStackTrace(); |
1682 |
} |
1683 |
|
1684 |
return rasterBuf;
|
1685 |
} |
1686 |
|
1687 |
/*
|
1688 |
* (non-Javadoc)
|
1689 |
* @see org.gvsig.fmap.driver.GeoRasterFile#getWindowRaster(double, double, double, double, int, int, org.gvsig.fmap.driver.BandList, org.gvsig.fmap.driver.IBuffer)
|
1690 |
*/
|
1691 |
public RasterBuf getWindowRaster(double minX, double minY, double maxX, double maxY, int bufWidth, int bufHeight, BandList bandList, RasterBuf rasterBuf) { |
1692 |
Extent selectedExtent = new Extent(minX, minY, maxX, maxY);
|
1693 |
setView(selectedExtent); |
1694 |
|
1695 |
double width = 0; |
1696 |
double height = 0; |
1697 |
if(getTransform() != null){ |
1698 |
width = (double)(Math.abs(selectedExtent.width() / getTransform()[1]));//(int)(selectedExtent.width() * file.width) / extent.width(); |
1699 |
height = (double)(Math.abs(selectedExtent.height() / getTransform()[5])); |
1700 |
}else{
|
1701 |
width = (double)Math.abs(selectedExtent.width()); |
1702 |
height = (double)Math.abs(selectedExtent.height()); |
1703 |
} |
1704 |
|
1705 |
try {
|
1706 |
file.readWindow(rasterBuf, bandList, minX, maxY, maxX, minY, width, height, bufWidth, bufHeight); |
1707 |
} catch (Exception e) { |
1708 |
e.printStackTrace(); |
1709 |
} |
1710 |
|
1711 |
return rasterBuf;
|
1712 |
} |
1713 |
|
1714 |
public RasterBuf getWindowRaster(int x, int y, int w, int h, BandList bandList, RasterBuf rasterBuf) { |
1715 |
try {
|
1716 |
setView( |
1717 |
new Extent( Utilities.getMapRectFromPxRect(getExtent().toRectangle2D(), |
1718 |
getWidth(), |
1719 |
getHeight(), |
1720 |
new Rectangle2D.Double(x, y, w, h))) |
1721 |
); |
1722 |
file.readWindow(rasterBuf, bandList, x, y, w, h); |
1723 |
} catch (Exception e) { |
1724 |
e.printStackTrace(); |
1725 |
} |
1726 |
return rasterBuf;
|
1727 |
} |
1728 |
|
1729 |
public RasterBuf getWindowRasterWithNoData(double x, double y, double w, double h, BandList bandList, RasterBuf rasterBuf) { |
1730 |
Extent selectedExtent = new Extent(x, y, x + w, y - h);
|
1731 |
setView(selectedExtent); |
1732 |
|
1733 |
try {
|
1734 |
file.readWindowWithNoData(rasterBuf, bandList, x, y, x + w, y - h, rasterBuf.getWidth(), rasterBuf.getHeight()); |
1735 |
} catch (Exception e) { |
1736 |
e.printStackTrace(); |
1737 |
} |
1738 |
|
1739 |
return rasterBuf;
|
1740 |
} |
1741 |
|
1742 |
/**
|
1743 |
* Obtiene la zona (Norte / Sur)
|
1744 |
* @return true si la zona es norte y false si es sur
|
1745 |
*/
|
1746 |
|
1747 |
public boolean getZone(){ |
1748 |
|
1749 |
return false; |
1750 |
} |
1751 |
|
1752 |
/**
|
1753 |
*Devuelve el n?mero de zona UTM
|
1754 |
*@return N?mero de zona
|
1755 |
*/
|
1756 |
|
1757 |
public int getUTM(){ |
1758 |
|
1759 |
return 0; |
1760 |
} |
1761 |
|
1762 |
/**
|
1763 |
* Obtiene el sistema de coordenadas geograficas
|
1764 |
* @return Sistema de coordenadas geogr?ficas
|
1765 |
*/
|
1766 |
public String getGeogCS(){ |
1767 |
return new String(""); |
1768 |
} |
1769 |
|
1770 |
/**
|
1771 |
* Devuelve el tama?o de bloque
|
1772 |
* @return Tama?o de bloque
|
1773 |
*/
|
1774 |
public int getBlockSize(){ |
1775 |
if(file != null) |
1776 |
return file.getBlockSize();
|
1777 |
else
|
1778 |
return 0; |
1779 |
} |
1780 |
|
1781 |
/**
|
1782 |
* Obtiene el objeto que contiene los metadatos
|
1783 |
*/
|
1784 |
public Metadata getMetadata() {
|
1785 |
if(file != null) |
1786 |
return file.getMetadataJavaObject();
|
1787 |
else
|
1788 |
return null; |
1789 |
} |
1790 |
|
1791 |
/**
|
1792 |
* Obtiene el flag que dice si la imagen est? o no georreferenciada
|
1793 |
* @return true si est? georreferenciada y false si no lo est?.
|
1794 |
*/
|
1795 |
public boolean isGeoreferenced() { |
1796 |
if(file != null) |
1797 |
return file.isGeoreferenced();
|
1798 |
else
|
1799 |
return false; |
1800 |
} |
1801 |
|
1802 |
/**
|
1803 |
* Informa de si el driver ha supersampleado en el ?ltimo dibujado. Es el driver el que colocar?
|
1804 |
* el valor de esta variable cada vez que dibuja.
|
1805 |
* @return true si se ha supersampleado y false si no se ha hecho.
|
1806 |
*/
|
1807 |
public boolean isSupersampling() { |
1808 |
if(file != null) |
1809 |
return file.isSupersampling;
|
1810 |
else
|
1811 |
return false; |
1812 |
} |
1813 |
|
1814 |
/**
|
1815 |
* Obtiene los par?metros de la transformaci?n af?n que corresponde con los elementos de
|
1816 |
* un fichero tfw.
|
1817 |
* <UL>
|
1818 |
* <LI>[1]tama?o de pixel en X</LI>
|
1819 |
* <LI>[2]rotaci?n en X</LI>
|
1820 |
* <LI>[4]rotaci?n en Y</LI>
|
1821 |
* <LI>[5]tama?o de pixel en Y</LI>
|
1822 |
* <LI>[0]origen en X</LI>
|
1823 |
* <LI>[3]origen en Y</LI>
|
1824 |
* </UL>
|
1825 |
* Este m?todo debe ser reimplementado por el driver si tiene esta informaci?n. En principio
|
1826 |
* Gdal es capaz de proporcionarla de esta forma.
|
1827 |
*
|
1828 |
* En caso de que exista fichero .rmf asociado al raster pasaremos de la informaci?n de georreferenciaci?n
|
1829 |
* del .tfw y devolveremos la que est? asociada al rmf
|
1830 |
* @return vector de double con los elementos de la transformaci?n af?n.
|
1831 |
*/
|
1832 |
public double[] getTransform(){ |
1833 |
if(file != null && file.trans != null && !this.rmfExists()) |
1834 |
return file.trans.adfgeotransform;
|
1835 |
else{
|
1836 |
if(this.rmfExists){ |
1837 |
double[] rmfGeoref = { rmfTransform.getTranslateX(), |
1838 |
rmfTransform.getScaleX(), |
1839 |
rmfTransform.getShearX(), |
1840 |
rmfTransform.getTranslateY(), |
1841 |
rmfTransform.getShearY(), |
1842 |
rmfTransform.getScaleY()}; |
1843 |
return rmfGeoref;
|
1844 |
} |
1845 |
return null; |
1846 |
} |
1847 |
|
1848 |
} |
1849 |
|
1850 |
/*
|
1851 |
* (non-Javadoc)
|
1852 |
* @see org.gvsig.fmap.driver.GeoRasterFile#rasterToWorld(java.awt.geom.Point2D)
|
1853 |
*/
|
1854 |
public Point2D rasterToWorld(Point2D pt) { |
1855 |
return file.rasterToWorld(pt);
|
1856 |
} |
1857 |
|
1858 |
/*
|
1859 |
* (non-Javadoc)
|
1860 |
* @see org.gvsig.fmap.driver.GeoRasterFile#worldToRaster(java.awt.geom.Point2D)
|
1861 |
*/
|
1862 |
public Point2D worldToRaster(Point2D pt){ |
1863 |
return file.worldToRaster(pt);
|
1864 |
} |
1865 |
|
1866 |
public void readPalette(){ |
1867 |
file.readPalette(); |
1868 |
} |
1869 |
} |
1870 |
|
1871 |
|
1872 |
|