svn-gvsig-desktop / tags / v1_0_2_Build_916 / libraries / libCq CMS for java.old / src / org / cresques / io / GeoRasterFile.java @ 12327
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| 1 | 2 | luisw | /*
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| 2 | 2809 | nacho | * Cresques Mapping Suite. Graphic Library for constructing mapping applications.
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| 3 | *
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| 4 | * Copyright (C) 2004-5.
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| 5 | 2 | luisw | *
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| 6 | 2809 | nacho | * This program is free software; you can redistribute it and/or
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| 7 | * modify it under the terms of the GNU General Public License
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| 8 | * as published by the Free Software Foundation; either version 2
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| 9 | * of the License, or (at your option) any later version.
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| 10 | *
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| 11 | * This program is distributed in the hope that it will be useful,
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| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 14 | * GNU General Public License for more details.
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| 15 | *
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| 16 | * You should have received a copy of the GNU General Public License
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| 17 | * along with this program; if not, write to the Free Software
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| 18 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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| 19 | *
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| 20 | * For more information, contact:
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| 21 | *
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| 22 | * cresques@gmail.com
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| 23 | 2 | luisw | */
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| 24 | package org.cresques.io; |
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| 25 | |||
| 26 | 130 | luisw | import java.awt.Component; |
| 27 | 2809 | nacho | import java.awt.Dimension; |
| 28 | 2 | luisw | import java.awt.Image; |
| 29 | 8765 | jjdelcerro | import java.awt.geom.AffineTransform; |
| 30 | 2809 | nacho | import java.awt.geom.Point2D; |
| 31 | import java.awt.image.DataBuffer; |
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| 32 | 5140 | nacho | import java.io.BufferedReader; |
| 33 | 5155 | nacho | import java.io.File; |
| 34 | 5140 | nacho | import java.io.FileInputStream; |
| 35 | import java.io.FileNotFoundException; |
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| 36 | import java.io.FileReader; |
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| 37 | 2809 | nacho | import java.io.FileWriter; |
| 38 | import java.io.IOException; |
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| 39 | 157 | luisw | import java.lang.reflect.Constructor; |
| 40 | import java.lang.reflect.InvocationTargetException; |
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| 41 | import java.util.TreeMap; |
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| 42 | 2 | luisw | |
| 43 | 94 | luisw | import org.cresques.cts.ICoordTrans; |
| 44 | import org.cresques.cts.IProjection; |
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| 45 | 5978 | nacho | import org.cresques.filter.PixelFilter; |
| 46 | import org.cresques.filter.SimplePixelFilter; |
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| 47 | 5991 | nacho | import org.cresques.io.data.Metadata; |
| 48 | import org.cresques.io.data.RasterMetaFileTags; |
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| 49 | 2 | luisw | import org.cresques.px.Extent; |
| 50 | 96 | luisw | import org.cresques.px.IObjList; |
| 51 | 2 | luisw | import org.cresques.px.PxContour; |
| 52 | 96 | luisw | import org.cresques.px.PxObjList; |
| 53 | 5140 | nacho | import org.kxml2.io.KXmlParser; |
| 54 | import org.xmlpull.v1.XmlPullParserException; |
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| 55 | 96 | luisw | |
| 56 | 2 | luisw | /**
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| 57 | 157 | luisw | * Manejador de ficheros raster georeferenciados.
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| 58 | 2 | luisw | *
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| 59 | 157 | luisw | * Esta clase abstracta es el ancestro de todas las clases que proporcionan
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| 60 | * soporte para ficheros raster georeferenciados.<br>
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| 61 | * Actua tambien como una 'Fabrica', ocultando al cliente la manera en que
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| 62 | * se ha implementado ese manejo. Una clase nueva que soportara un nuevo
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| 63 | * tipo de raster tendr?a que registrar su extensi?n o extensiones usando
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| 64 | * el m?todo @see registerExtension.<br>
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| 65 | 50 | luisw | * @author "Luis W. Sevilla" <sevilla_lui@gva.es>*
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| 66 | 2 | luisw | */
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| 67 | 50 | luisw | |
| 68 | 2 | luisw | public abstract class GeoRasterFile extends GeoFile { |
| 69 | 2809 | nacho | |
| 70 | 184 | luisw | /**
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| 71 | 2809 | nacho | * Flag que representa a la banda del Rojo
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| 72 | */
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| 73 | 4965 | nacho | public static final int RED_BAND = 0x01; |
| 74 | 2809 | nacho | |
| 75 | /**
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| 76 | * Flag que representa a la banda del Verde
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| 77 | */
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| 78 | 4965 | nacho | public static final int GREEN_BAND = 0x02; |
| 79 | 2809 | nacho | |
| 80 | /**
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| 81 | * Flag que representa a la banda del Azul
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| 82 | */
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| 83 | 4965 | nacho | public static final int BLUE_BAND = 0x04; |
| 84 | private static TreeMap supportedExtensions = null; |
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| 85 | protected Component updatable = null; |
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| 86 | protected boolean doTransparency = false; |
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| 87 | private boolean verifySize = false; |
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| 88 | 8765 | jjdelcerro | /**
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| 89 | * Par?metros de transformaci?n del fichero .rmf. Esta ser? distinta
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| 90 | * de la identidad si la funci?n rmfExists() devuelve true.
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| 91 | */
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| 92 | protected AffineTransform rmfTransform = new AffineTransform(); |
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| 93 | 3084 | nacho | |
| 94 | 2849 | nacho | /**
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| 95 | 184 | luisw | * Filtro para raster.
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| 96 | * Permite eliminar la franja inutil alrededor de un raster girado o de
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| 97 | * un mosaico de borde irregular.
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| 98 | *
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| 99 | * Funciona bien solo con raster en tonos de gris, porque se basa que
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| 100 | * el valor del pixel no supere un determinado valor 'umbral' que se
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| 101 | * le pasa al constructor.
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| 102 | *
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| 103 | * Desarrollado para 'limpiar' los bordes de los mosaicos del SIG
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| 104 | * Oleicola. Para ese caso los par?metros del constructo son:
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| 105 | * PixelFilter(0x10ffff00, 0xff000000, 0xf0f0f0);
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| 106 | */
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| 107 | 4965 | nacho | protected PixelFilter tFilter = null; |
| 108 | 2809 | nacho | |
| 109 | /**
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| 110 | * Asignaci?n de banda del Rojo a una banda de la imagen
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| 111 | */
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| 112 | 4965 | nacho | protected int rBandNr = 1; |
| 113 | 2809 | nacho | |
| 114 | /**
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| 115 | * Asignaci?n de banda del Verde a una banda de la imagen
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| 116 | */
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| 117 | 4965 | nacho | protected int gBandNr = 1; |
| 118 | 2809 | nacho | |
| 119 | /**
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| 120 | * Asignaci?n de banda del Azul a una banda de la imagen
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| 121 | */
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| 122 | 4965 | nacho | protected int bBandNr = 1; |
| 123 | 2809 | nacho | |
| 124 | /**
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| 125 | * N?mero de bandas de la imagen
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| 126 | */
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| 127 | 4965 | nacho | protected int bandCount = 1; |
| 128 | private int dataType = DataBuffer.TYPE_BYTE; |
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| 129 | 8765 | jjdelcerro | /**
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| 130 | * Par?metros de transformaci?n del fichero .rmf. Estas variables tendr?n valores distinto
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| 131 | * de 0 si la funci?n rmfExists() devuelve true.
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| 132 | */
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| 133 | //protected double originX = 0D, originY = 0D, w = 0D, h = 0D;
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| 134 | //protected double pixelSizeX = 0D, pixelSizeY = 0D;
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| 135 | protected double imageWidth = 0D, imageHeight = 0D; |
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| 136 | //protected double shearX = 0D, shearY = 0D;
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| 137 | 184 | luisw | |
| 138 | 157 | luisw | static {
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| 139 | supportedExtensions = new TreeMap(); |
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| 140 | 3084 | nacho | supportedExtensions.put("ecw", EcwFile.class);
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| 141 | supportedExtensions.put("jp2", EcwFile.class);
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| 142 | 6052 | luisw2 | |
| 143 | 6037 | nacho | supportedExtensions.put("sid", MrSidFile.class);
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| 144 | 6052 | luisw2 | |
| 145 | 6037 | nacho | supportedExtensions.put("bmp", GdalFile.class);
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| 146 | supportedExtensions.put("gif", GdalFile.class);
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| 147 | supportedExtensions.put("img", GdalFile.class);
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| 148 | supportedExtensions.put("tif", GdalFile.class);
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| 149 | 3084 | nacho | supportedExtensions.put("tiff", GdalFile.class);
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| 150 | 6037 | nacho | supportedExtensions.put("jpg", GdalFile.class);
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| 151 | supportedExtensions.put("png", GdalFile.class);
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| 152 | 6052 | luisw2 | //supportedExtensions.put("jpg", TifGeoRefFile.class);
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| 153 | //supportedExtensions.put("png", TifGeoRefFile.class);
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| 154 | //supportedExtensions.put("dat", GdalFile.class);
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| 155 | 157 | luisw | } |
| 156 | |||
| 157 | 50 | luisw | /**
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| 158 | 157 | luisw | * Factoria para abrir distintos tipos de raster.
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| 159 | *
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| 160 | * @param proj Proyecci?n en la que est? el raster.
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| 161 | * @param fName Nombre del fichero.
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| 162 | * @return GeoRasterFile, o null si hay problemas.
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| 163 | 50 | luisw | */
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| 164 | 94 | luisw | public static GeoRasterFile openFile(IProjection proj, String fName) { |
| 165 | 58 | luisw | String ext = fName.toLowerCase().substring(fName.lastIndexOf('.')+1); |
| 166 | 157 | luisw | GeoRasterFile grf = null;
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| 167 | // TODO NotSupportedExtensionException
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| 168 | if (!supportedExtensions.containsKey(ext)) return grf; |
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| 169 | /**/
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| 170 | Class clase = (Class) supportedExtensions.get(ext); |
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| 171 | Class [] args = {IProjection.class, String.class}; |
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| 172 | try {
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| 173 | Constructor hazNuevo = clase.getConstructor(args);
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| 174 | Object [] args2 = {proj, fName}; |
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| 175 | grf = (GeoRasterFile) hazNuevo.newInstance(args2); |
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| 176 | 6064 | nacho | grf.setFileSize(new File(fName).length()); |
| 177 | 157 | luisw | } catch (SecurityException e) { |
| 178 | e.printStackTrace(); |
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| 179 | } catch (NoSuchMethodException e) { |
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| 180 | e.printStackTrace(); |
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| 181 | } catch (IllegalArgumentException e) { |
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| 182 | e.printStackTrace(); |
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| 183 | } catch (InstantiationException e) { |
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| 184 | e.printStackTrace(); |
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| 185 | } catch (IllegalAccessException e) { |
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| 186 | e.printStackTrace(); |
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| 187 | } catch (InvocationTargetException e) { |
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| 188 | e.printStackTrace(); |
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| 189 | 2809 | nacho | } |
| 190 | 157 | luisw | |
| 191 | return grf;
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| 192 | 50 | luisw | } |
| 193 | 157 | luisw | |
| 194 | /**
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| 195 | * Registra una clase que soporta una extensi?n raster.
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| 196 | * @param ext extensi?n soportada.
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| 197 | * @param clase clase que la soporta.
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| 198 | */
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| 199 | public static void registerExtension(String ext, Class clase) { |
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| 200 | ext = ext.toLowerCase(); |
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| 201 | 2809 | nacho | System.out.println("RASTER: extension '"+ext+"' supported."); |
| 202 | 157 | luisw | supportedExtensions.put(ext, clase); |
| 203 | } |
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| 204 | |||
| 205 | 2809 | nacho | /**
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| 206 | * Tipo de fichero soportado.
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| 207 | * Devuelve true si el tipo de fichero (extension) est? soportado, si no
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| 208 | * devuelve false.
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| 209 | *
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| 210 | * @param fName Fichero raster
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| 211 | * @return true si est? soportado, si no false.
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| 212 | */
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| 213 | public static boolean fileIsSupported(String fName) { |
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| 214 | String ext = fName.toLowerCase().substring(fName.lastIndexOf('.')+1); |
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| 215 | return supportedExtensions.containsKey(ext);
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| 216 | } |
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| 217 | 184 | luisw | |
| 218 | 2809 | nacho | /**
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| 219 | * Constructor
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| 220 | * @param proj Proyecci?n
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| 221 | * @param name Nombre del fichero de imagen.
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| 222 | */
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| 223 | 94 | luisw | public GeoRasterFile(IProjection proj, String name) { |
| 224 | 13 | luisw | super(proj, name);
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| 225 | 2 | luisw | } |
| 226 | 157 | luisw | |
| 227 | 2809 | nacho | /**
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| 228 | * Carga un fichero raster. Puede usarse para calcular el extent e instanciar
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| 229 | * un objeto de este tipo.
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| 230 | */
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| 231 | 157 | luisw | abstract public GeoFile load(); |
| 232 | |||
| 233 | 2809 | nacho | /**
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| 234 | * Cierra el fichero y libera los recursos.
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| 235 | */
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| 236 | abstract public void close(); |
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| 237 | |||
| 238 | 5140 | nacho | /**
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| 239 | * Obtiene la codificaci?n del fichero XML
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| 240 | * @param file Nombre del fichero XML
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| 241 | * @return Codificaci?n
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| 242 | */
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| 243 | private String readFileEncoding(String file){ |
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| 244 | FileReader fr;
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| 245 | String encoding = null; |
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| 246 | try
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| 247 | {
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| 248 | fr = new FileReader(file); |
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| 249 | BufferedReader br = new BufferedReader(fr); |
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| 250 | char[] buffer = new char[100]; |
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| 251 | br.read(buffer); |
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| 252 | StringBuffer st = new StringBuffer(new String(buffer)); |
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| 253 | String searchText = "encoding=\""; |
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| 254 | int index = st.indexOf(searchText);
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| 255 | if (index>-1) { |
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| 256 | st.delete(0, index+searchText.length());
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| 257 | encoding = st.substring(0, st.indexOf("\"")); |
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| 258 | } |
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| 259 | 5155 | nacho | fr.close(); |
| 260 | 5140 | nacho | } catch(FileNotFoundException ex) { |
| 261 | ex.printStackTrace(); |
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| 262 | } catch (IOException e) { |
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| 263 | e.printStackTrace(); |
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| 264 | } |
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| 265 | return encoding;
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| 266 | } |
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| 267 | |||
| 268 | 5175 | nacho | private double[] parserExtent(KXmlParser parser) throws XmlPullParserException, IOException { |
| 269 | double originX = 0D, originY = 0D, w = 0D, h = 0D; |
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| 270 | double pixelSizeX = 0D, pixelSizeY = 0D; |
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| 271 | 8765 | jjdelcerro | double shearX = 0D, shearY = 0D; |
| 272 | 5175 | nacho | |
| 273 | boolean end = false; |
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| 274 | int tag = parser.next();
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| 275 | while (!end) {
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| 276 | switch(tag) {
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| 277 | case KXmlParser.START_TAG:
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| 278 | if(parser.getName() != null){ |
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| 279 | if (parser.getName().equals(RasterMetaFileTags.POSX)){
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| 280 | originX = Double.parseDouble(parser.nextText());
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| 281 | }else if (parser.getName().equals(RasterMetaFileTags.POSY)){ |
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| 282 | originY = Double.parseDouble(parser.nextText());
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| 283 | }else if (parser.getName().equals(RasterMetaFileTags.PX_SIZE_X)){ |
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| 284 | pixelSizeX = Double.parseDouble(parser.nextText());
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| 285 | }else if (parser.getName().equals(RasterMetaFileTags.PX_SIZE_Y)){ |
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| 286 | pixelSizeY = Double.parseDouble(parser.nextText());
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| 287 | 8765 | jjdelcerro | }else if (parser.getName().equals(RasterMetaFileTags.ROTX)){ |
| 288 | shearX = Double.parseDouble(parser.nextText());
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| 289 | }else if (parser.getName().equals(RasterMetaFileTags.ROTY)){ |
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| 290 | shearY = Double.parseDouble(parser.nextText());
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| 291 | 5175 | nacho | }else if (parser.getName().equals(RasterMetaFileTags.WIDTH)){ |
| 292 | w = Double.parseDouble(parser.nextText());
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| 293 | }else if (parser.getName().equals(RasterMetaFileTags.HEIGHT)){ |
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| 294 | h = Double.parseDouble(parser.nextText());
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| 295 | } |
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| 296 | } |
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| 297 | break;
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| 298 | case KXmlParser.END_TAG:
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| 299 | if (parser.getName().equals(RasterMetaFileTags.BBOX))
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| 300 | end = true;
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| 301 | break;
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| 302 | case KXmlParser.TEXT:
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| 303 | break;
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| 304 | } |
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| 305 | tag = parser.next(); |
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| 306 | } |
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| 307 | |||
| 308 | 8765 | jjdelcerro | double[] values = {originX, originY, w, h, pixelSizeX, pixelSizeY, shearX, shearY}; |
| 309 | 5175 | nacho | return values;
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| 310 | } |
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| 311 | |||
| 312 | 5155 | nacho | /**
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| 313 | * Obtiene la informaci?n de georreferenciaci?n asociada a la imagen en un fichero .rmf. Esta
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| 314 | * georreferenciaci?n tiene la caracteristica de que tiene prioridad sobre la de la imagen.
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| 315 | * Es almacenada en la clase GeoFile en la variable virtualExtent.
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| 316 | * @param file Fichero de metadatos .rmf
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| 317 | */
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| 318 | protected void readGeoInfo(String file){ |
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| 319 | String rmf = file.substring(0, file.lastIndexOf(".") + 1) + "rmf"; |
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| 320 | File rmfFile = new File(rmf); |
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| 321 | if(!rmfFile.exists())
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| 322 | return;
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| 323 | |||
| 324 | 5350 | nacho | boolean georefOk = false; |
| 325 | 5155 | nacho | |
| 326 | FileReader fr = null; |
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| 327 | 5140 | nacho | String v = null; |
| 328 | try {
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| 329 | 5155 | nacho | fr = new FileReader(rmf); |
| 330 | 5140 | nacho | KXmlParser parser = new KXmlParser();
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| 331 | 5155 | nacho | parser.setInput(new FileInputStream(rmf), readFileEncoding(rmf)); |
| 332 | 5140 | nacho | int tag = parser.nextTag();
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| 333 | if ( parser.getEventType() != KXmlParser.END_DOCUMENT ){
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| 334 | 5175 | nacho | parser.require(KXmlParser.START_TAG, null, RasterMetaFileTags.MAIN_TAG);
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| 335 | 5140 | nacho | while(tag != KXmlParser.END_DOCUMENT) {
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| 336 | switch(tag) {
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| 337 | case KXmlParser.START_TAG:
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| 338 | 5175 | nacho | if (parser.getName().equals(RasterMetaFileTags.LAYER)) {
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| 339 | 5155 | nacho | int layerListTag = parser.next();
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| 340 | boolean geoRefEnd = false; |
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| 341 | while (!geoRefEnd){
|
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| 342 | if(parser.getName() != null){ |
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| 343 | 5175 | nacho | if (parser.getName().equals(RasterMetaFileTags.PROJ)){
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| 344 | 5155 | nacho | //System.out.println("PROJ:"+parser.nextText());
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| 345 | 5175 | nacho | } else if (parser.getName().equals(RasterMetaFileTags.BBOX)){ |
| 346 | double[] values = parserExtent(parser); |
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| 347 | 8765 | jjdelcerro | rmfTransform = new AffineTransform( values[4], values[7], |
| 348 | values[6], values[5], |
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| 349 | values[0], values[1]); |
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| 350 | 5350 | nacho | georefOk = true;
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| 351 | 5175 | nacho | } else if (parser.getName().equals(RasterMetaFileTags.DIM)){ |
| 352 | boolean DimEnd = false; |
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| 353 | while (!DimEnd){
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| 354 | 5155 | nacho | layerListTag = parser.next(); |
| 355 | if(parser.getName() != null){ |
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| 356 | 5175 | nacho | if (parser.getName().equals(RasterMetaFileTags.PX_WIDTH)){
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| 357 | imageWidth = Double.parseDouble(parser.nextText());
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| 358 | }else if (parser.getName().equals(RasterMetaFileTags.PX_HEIGHT)){ |
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| 359 | imageHeight = Double.parseDouble(parser.nextText());
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| 360 | DimEnd = true;
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| 361 | } |
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| 362 | 5155 | nacho | } |
| 363 | } |
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| 364 | geoRefEnd = true;
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| 365 | 5175 | nacho | } |
| 366 | 5140 | nacho | } |
| 367 | layerListTag = parser.next(); |
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| 368 | } |
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| 369 | } |
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| 370 | break;
|
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| 371 | case KXmlParser.END_TAG:
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| 372 | break;
|
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| 373 | case KXmlParser.TEXT:
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| 374 | break;
|
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| 375 | } |
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| 376 | tag = parser.next(); |
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| 377 | } |
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| 378 | parser.require(KXmlParser.END_DOCUMENT, null, null); |
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| 379 | } |
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| 380 | 5155 | nacho | |
| 381 | 5350 | nacho | if(georefOk){
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| 382 | rmfExists = true;
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| 383 | 8765 | jjdelcerro | setExtentTransform( rmfTransform.getTranslateX(), rmfTransform.getTranslateY(), |
| 384 | rmfTransform.getScaleX(), rmfTransform.getScaleY()); |
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| 385 | createExtentsFromRMF( rmfTransform.getTranslateX(), rmfTransform.getTranslateY(), |
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| 386 | rmfTransform.getScaleX(), rmfTransform.getScaleY(), |
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| 387 | imageWidth, imageHeight, |
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| 388 | rmfTransform.getShearX(), rmfTransform.getShearY()); |
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| 389 | 5350 | nacho | } |
| 390 | 5175 | nacho | |
| 391 | 5140 | nacho | } catch (FileNotFoundException fnfEx) { |
| 392 | } catch (XmlPullParserException xmlEx) {
|
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| 393 | xmlEx.printStackTrace(); |
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| 394 | } catch (IOException e) { |
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| 395 | } |
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| 396 | 5155 | nacho | try{
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| 397 | if(fr != null) |
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| 398 | fr.close(); |
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| 399 | }catch(IOException ioEx){ |
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| 400 | //No est? abierto el fichero por lo que no hacemos nada
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| 401 | } |
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| 402 | 5140 | nacho | } |
| 403 | 5175 | nacho | |
| 404 | /**
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| 405 | 8765 | jjdelcerro | * Asigna una transformaci?n al raster para que se tenga en cuenta en la asignaci?n del setView.
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| 406 | * Esta asignaci?n recalcula el extent, el requestExtent y asigna el AffineTransform que se
|
||
| 407 | * usar? para la transformaci?n. Esta transformaci?n ser? considerada como si la imagen tuviera
|
||
| 408 | * asociado un rmf.
|
||
| 409 | * @param t Transformaci?n af?n a aplicar
|
||
| 410 | */
|
||
| 411 | public void setAffineTransform(AffineTransform t){ |
||
| 412 | rmfExists = true;
|
||
| 413 | rmfTransform = (AffineTransform)t.clone();
|
||
| 414 | setExtentTransform(t.getTranslateX(), t.getTranslateY(), t.getScaleX(), t.getScaleY()); |
||
| 415 | createExtentsFromRMF( t.getTranslateX(), t.getTranslateY(), t.getScaleX(), t.getScaleY(), |
||
| 416 | this.getWidth(), this.getHeight(), |
||
| 417 | t.getShearX(), t.getShearY()); |
||
| 418 | } |
||
| 419 | |||
| 420 | /**
|
||
| 421 | * Asigna una transformaci?n al raster para que se tenga en cuenta en la asignaci?n del setView.
|
||
| 422 | * Esta asignaci?n recalcula el extent, el requestExtent y asigna el AffineTransform que se
|
||
| 423 | * usar? para la transformaci?n. Esta transformaci?n ser? considerada como si la imagen tuviera
|
||
| 424 | * asociado un rmf.
|
||
| 425 | * @param originX Coordenada X de origen del raster
|
||
| 426 | * @param originY Coordenada Y de origen del raster
|
||
| 427 | * @param pixelSizeX Tama?o de pixel en X
|
||
| 428 | * @param pixelSizeY Tama?o de pixel en Y
|
||
| 429 | * @param imageWidth Ancho del raster en pixels
|
||
| 430 | * @param imageHeight Alto del raster en pixels
|
||
| 431 | * @param shearX Shearing en X
|
||
| 432 | * @param shearY Shearing en Y
|
||
| 433 | */
|
||
| 434 | public void setAffineTransform( double originX, double originY, double pixelSizeX, |
||
| 435 | double pixelSizeY, double shearX, double shearY){ |
||
| 436 | rmfExists = true;
|
||
| 437 | rmfTransform.setToTranslation(originX, originY); |
||
| 438 | rmfTransform.shear(shearX, shearY); |
||
| 439 | rmfTransform.scale(pixelSizeX, pixelSizeY); |
||
| 440 | setExtentTransform(originX, originY, pixelSizeX, pixelSizeY); |
||
| 441 | createExtentsFromRMF( originX, originY, pixelSizeX, pixelSizeY, |
||
| 442 | imageWidth, imageHeight, shearX, shearY); |
||
| 443 | } |
||
| 444 | |||
| 445 | /**
|
||
| 446 | * Obtiene la matriz de transformaci?n que se aplica sobre la visualizaci?n
|
||
| 447 | * del raster.
|
||
| 448 | * @return Matriz de transformaci?n.
|
||
| 449 | */
|
||
| 450 | public AffineTransform getAffineTransform(){ |
||
| 451 | return rmfTransform;
|
||
| 452 | } |
||
| 453 | |||
| 454 | /**
|
||
| 455 | * Elimina la matriz de transformaci?n asociada al raster y que se tiene en cuenta para
|
||
| 456 | * el setView. Este reseteo tendr? en cuenta que si el raster tiene asociado un rmf
|
||
| 457 | * esta transformaci?n no ser? eliminada sino que se asignar? la correspondiente al rmf
|
||
| 458 | * existente.
|
||
| 459 | * @return devuelve true si tiene fichero rmf asociado y false si no lo tiene.
|
||
| 460 | */
|
||
| 461 | public boolean resetAffineTransform(){ |
||
| 462 | rmfExists = false;
|
||
| 463 | rmfTransform.setToIdentity(); |
||
| 464 | |||
| 465 | //Crea los extent iniciales
|
||
| 466 | load(); |
||
| 467 | |||
| 468 | //Lee y carga el rmf si existe
|
||
| 469 | readGeoInfo(this.getName());
|
||
| 470 | |||
| 471 | if(rmfExists)
|
||
| 472 | return true; |
||
| 473 | else
|
||
| 474 | return false; |
||
| 475 | } |
||
| 476 | |||
| 477 | /**
|
||
| 478 | * <P>
|
||
| 479 | * Calcula el extent de la imagen a partir del fichero rmf con y sin rotaci?n. El extent con rotaci?n corresponde
|
||
| 480 | * a la variable extent que contiene el extent verdadero marcado por el fichero de georreferenciaci?n .rmf. El extent
|
||
| 481 | * sin rotaci?n requestExtent es utilizado para realizar la petici?n ya que la petici?n al driver no se puede
|
||
| 482 | * hacer con coordenadas rotadas.
|
||
| 483 | *
|
||
| 484 | * El calculo de la bounding box rotada lo hace con los valores de transformaci?n leidos desde el fichero .rmf.
|
||
| 485 | * </p>
|
||
| 486 | * <P>
|
||
| 487 | * Para el calculo de una esquina aplicamos la formula siguiente:<BR>
|
||
| 488 | * PtoX = originX + pixelSizeX * x + shearX * y;<BR>
|
||
| 489 | * PtoY = originY + shearY * x + pixelSizeY * y;<BR>
|
||
| 490 | * Aplicandolo a las cuatro esquinas sustituimos en cada una de ellas por.
|
||
| 491 | * </P>
|
||
| 492 | * <UL>
|
||
| 493 | * <LI>Esquina superior izquierda: x = 0; y = 0;</LI>
|
||
| 494 | * <LI>Esquina superior derecha: x = MaxX; y = 0;</LI>
|
||
| 495 | * <LI>Esquina inferior izquierda: x = 0; y = MaxY;</LI>
|
||
| 496 | * <LI>Esquina inferior derecha: x = MaxX; y = MaxY;</LI>
|
||
| 497 | * </UL>
|
||
| 498 | * <P>
|
||
| 499 | * quedandonos en los cuatro casos:
|
||
| 500 | * </P>
|
||
| 501 | * <UL>
|
||
| 502 | * <LI>Esquina superior izquierda: originX; originY;</LI>
|
||
| 503 | * <LI>Esquina superior derecha: PtoX = originX + pixelSizeX * x; PtoY = originY + shearY * x;</LI>
|
||
| 504 | * <LI>Esquina inferior izquierda: PtoX = originX + shearX * y; PtoY = originY + pixelSizeY * y;</LI>
|
||
| 505 | * <LI>Esquina inferior derecha: PtoX = originX + pixelSizeX * x + shearX * y; PtoY = originY + shearY * x + pixelSizeY * y;</LI>
|
||
| 506 | * </UL>
|
||
| 507 | *
|
||
| 508 | * <P>
|
||
| 509 | * El calculo de la bounding box se realizar? de la misma forma pero anulando los parametros de shearing.
|
||
| 510 | * </P>
|
||
| 511 | *
|
||
| 512 | * @param originX Coordenada X de origen del raster
|
||
| 513 | * @param originY Coordenada Y de origen del raster
|
||
| 514 | * @param pixelSizeX Tama?o de pixel en X
|
||
| 515 | * @param pixelSizeY Tama?o de pixel en Y
|
||
| 516 | * @param imageWidth Ancho del raster en pixels
|
||
| 517 | * @param imageHeight Alto del raster en pixels
|
||
| 518 | * @param shearX Shearing en X
|
||
| 519 | * @param shearY Shearing en Y
|
||
| 520 | */
|
||
| 521 | private void createExtentsFromRMF( double originX, double originY, double pixelSizeX, double pixelSizeY, |
||
| 522 | double imageWidth, double imageHeight, double shearX, double shearY){ |
||
| 523 | |||
| 524 | Point2D p1 = new Point2D.Double(originX, originY); |
||
| 525 | Point2D p2 = new Point2D.Double(originX + shearX * imageHeight, originY + pixelSizeY * imageHeight); |
||
| 526 | Point2D p3 = new Point2D.Double(originX + pixelSizeX * imageWidth, originY + shearY * imageWidth); |
||
| 527 | Point2D p4 = new Point2D.Double(originX + pixelSizeX * imageWidth + shearX * imageHeight, originY + pixelSizeY * imageHeight + shearY * imageWidth); |
||
| 528 | |||
| 529 | double minX = Math.min(Math.min(p1.getX(), p2.getX()), Math.min(p3.getX(), p4.getX())); |
||
| 530 | double minY = Math.min(Math.min(p1.getY(), p2.getY()), Math.min(p3.getY(), p4.getY())); |
||
| 531 | double maxX = Math.max(Math.max(p1.getX(), p2.getX()), Math.max(p3.getX(), p4.getX())); |
||
| 532 | double maxY = Math.max(Math.max(p1.getY(), p2.getY()), Math.max(p3.getY(), p4.getY())); |
||
| 533 | extent = new Extent(minX, minY, maxX, maxY);
|
||
| 534 | requestExtent = new Extent(originX, originY, originX + (pixelSizeX * imageWidth), originY + (pixelSizeY * imageHeight));
|
||
| 535 | } |
||
| 536 | |||
| 537 | /**
|
||
| 538 | 5175 | nacho | * Calcula la transformaci?n que se produce sobre la vista cuando la imagen tiene un fichero .rmf
|
| 539 | * asociado. Esta transformaci?n tiene diferencias entre los distintos formatos por lo que debe calcularla
|
||
| 540 | * el driver correspondiente.
|
||
| 541 | * @param originX Origen de la imagen en la coordenada X
|
||
| 542 | * @param originY Origen de la imagen en la coordenada Y
|
||
| 543 | */
|
||
| 544 | 8765 | jjdelcerro | abstract public void setExtentTransform(double originX, double originY, double psX, double psY); |
| 545 | 5140 | nacho | |
| 546 | 125 | luisw | public static PxContour getContour(String fName, String name, IProjection proj) { |
| 547 | 2 | luisw | PxContour contour = null;
|
| 548 | return contour;
|
||
| 549 | } |
||
| 550 | 5175 | nacho | |
| 551 | 2809 | nacho | /**
|
| 552 | * Obtiene el ancho de la imagen
|
||
| 553 | * @return Ancho de la imagen
|
||
| 554 | */
|
||
| 555 | 130 | luisw | abstract public int getWidth(); |
| 556 | 2809 | nacho | |
| 557 | /**
|
||
| 558 | * Obtiene el ancho de la imagen
|
||
| 559 | * @return Ancho de la imagen
|
||
| 560 | */
|
||
| 561 | 130 | luisw | abstract public int getHeight(); |
| 562 | 2 | luisw | |
| 563 | 2809 | nacho | /**
|
| 564 | * Reproyecci?n.
|
||
| 565 | * @param rp Coordenadas de la transformaci?n
|
||
| 566 | */
|
||
| 567 | 94 | luisw | abstract public void reProject(ICoordTrans rp); |
| 568 | 2 | luisw | |
| 569 | 2809 | nacho | /**
|
| 570 | * Asigna un nuevo Extent
|
||
| 571 | * @param e Extent
|
||
| 572 | */
|
||
| 573 | 2 | luisw | abstract public void setView(Extent e); |
| 574 | 2809 | nacho | |
| 575 | /**
|
||
| 576 | * Obtiene el extent asignado
|
||
| 577 | * @return Extent
|
||
| 578 | */
|
||
| 579 | 2 | luisw | abstract public Extent getView(); |
| 580 | |||
| 581 | 2809 | nacho | public void setTransparency(boolean t) { |
| 582 | doTransparency = t; |
||
| 583 | tFilter = new PixelFilter(255); |
||
| 584 | } |
||
| 585 | 2 | luisw | |
| 586 | 2809 | nacho | /**
|
| 587 | * Asigna un valor de transparencia
|
||
| 588 | * @param t Valor de transparencia
|
||
| 589 | */
|
||
| 590 | public void setTransparency(int t ) { |
||
| 591 | doTransparency = true;
|
||
| 592 | tFilter = new SimplePixelFilter(255 - t); |
||
| 593 | } |
||
| 594 | |||
| 595 | public boolean getTransparency() { return doTransparency; } |
||
| 596 | |||
| 597 | public void setAlpha(int alpha) { |
||
| 598 | if (!doTransparency) setTransparency(255 - alpha); |
||
| 599 | else tFilter.setAlpha(alpha);
|
||
| 600 | } |
||
| 601 | public int getAlpha() { |
||
| 602 | if (tFilter == null) |
||
| 603 | return 255; |
||
| 604 | return tFilter.getAlpha();
|
||
| 605 | } |
||
| 606 | |||
| 607 | 130 | luisw | public void setUpdatable(Component c) { updatable = c; } |
| 608 | |||
| 609 | 2809 | nacho | /**
|
| 610 | * Actualiza la imagen
|
||
| 611 | * @param width ancho
|
||
| 612 | * @param height alto
|
||
| 613 | * @param rp Reproyecci?n
|
||
| 614 | * @return img
|
||
| 615 | */
|
||
| 616 | 94 | luisw | abstract public Image updateImage(int width, int height, ICoordTrans rp); |
| 617 | 2809 | nacho | |
| 618 | /**
|
||
| 619 | * Obtiene el valor del raster en la coordenada que se le pasa.
|
||
| 620 | * El valor ser? Double, Int, Byte, etc. dependiendo del tipo de
|
||
| 621 | * raster.
|
||
| 622 | * @param x coordenada X
|
||
| 623 | * @param y coordenada Y
|
||
| 624 | * @return
|
||
| 625 | */
|
||
| 626 | abstract public Object getData(int x, int y, int band); |
||
| 627 | |||
| 628 | /**
|
||
| 629 | * Actualiza la/s banda/s especificadas en la imagen.
|
||
| 630 | * @param width ancho
|
||
| 631 | * @param height alto
|
||
| 632 | * @param rp reproyecci?n
|
||
| 633 | * @param img imagen
|
||
| 634 | * @param flags que bandas [ RED_BAND | GREEN_BAND | BLUE_BAND ]
|
||
| 635 | * @return img
|
||
| 636 | 4998 | nacho | * @throws SupersamplingNotSupportedException
|
| 637 | 2809 | nacho | */
|
| 638 | 4998 | nacho | abstract public Image updateImage(int width, int height, ICoordTrans rp, Image img, int origBand, int destBand)throws SupersamplingNotSupportedException; |
| 639 | 2809 | nacho | |
| 640 | public int getBandCount() { return bandCount; } |
||
| 641 | 96 | luisw | |
| 642 | 2809 | nacho | /**
|
| 643 | * Asocia un colorBand al rojo, verde o azul.
|
||
| 644 | * @param flag cual (o cuales) de las bandas.
|
||
| 645 | * @param nBand que colorBand
|
||
| 646 | */
|
||
| 647 | |||
| 648 | public void setBand(int flag, int bandNr) { |
||
| 649 | if ((flag & GeoRasterFile.RED_BAND) == GeoRasterFile.RED_BAND) rBandNr = bandNr;
|
||
| 650 | if ((flag & GeoRasterFile.GREEN_BAND) == GeoRasterFile.GREEN_BAND) gBandNr = bandNr;
|
||
| 651 | if ((flag & GeoRasterFile.BLUE_BAND) == GeoRasterFile.BLUE_BAND) bBandNr = bandNr;
|
||
| 652 | } |
||
| 653 | |||
| 654 | /**
|
||
| 655 | * Devuelve el colorBand activo en la banda especificada.
|
||
| 656 | * @param flag banda.
|
||
| 657 | */
|
||
| 658 | |||
| 659 | public int getBand(int flag) { |
||
| 660 | if (flag == GeoRasterFile.RED_BAND) return rBandNr; |
||
| 661 | if (flag == GeoRasterFile.GREEN_BAND) return gBandNr; |
||
| 662 | if (flag == GeoRasterFile.BLUE_BAND) return bBandNr; |
||
| 663 | return -1; |
||
| 664 | } |
||
| 665 | |||
| 666 | /**
|
||
| 667 | * @return Returns the dataType.
|
||
| 668 | */
|
||
| 669 | public int getDataType() { |
||
| 670 | return dataType;
|
||
| 671 | } |
||
| 672 | |||
| 673 | /**
|
||
| 674 | * @param dataType The dataType to set.
|
||
| 675 | */
|
||
| 676 | public void setDataType(int dataType) { |
||
| 677 | this.dataType = dataType;
|
||
| 678 | } |
||
| 679 | |||
| 680 | 96 | luisw | public IObjList getObjects() {
|
| 681 | // TODO hay que a?adir el raster a la lista de objetos
|
||
| 682 | IObjList oList = new PxObjList(proj);
|
||
| 683 | return oList;
|
||
| 684 | } |
||
| 685 | 2809 | nacho | |
| 686 | /**
|
||
| 687 | * Calcula los par?metros de un worl file a partir de las esquinas del raster.
|
||
| 688 | * 1. X pixel size A
|
||
| 689 | * 2. X rotation term D
|
||
| 690 | * 3. Y rotation term B
|
||
| 691 | * 4. Y pixel size E
|
||
| 692 | * 5. X coordinate of upper left corner C
|
||
| 693 | * 6. Y coordinate of upper left corner F
|
||
| 694 | * where the real-world coordinates x',y' can be calculated from
|
||
| 695 | * the image coordinates x,y with the equations
|
||
| 696 | * x' = Ax + By + C and y' = Dx + Ey + F.
|
||
| 697 | * The signs of the first 4 parameters depend on the orientation
|
||
| 698 | * of the image. In the usual case where north is more or less
|
||
| 699 | * at the top of the image, the X pixel size will be positive
|
||
| 700 | * and the Y pixel size will be negative. For a south-up image,
|
||
| 701 | * these signs would be reversed.
|
||
| 702 | *
|
||
| 703 | * You can calculate the World file parameters yourself based
|
||
| 704 | * on the corner coordinates. The X and Y pixel sizes can be
|
||
| 705 | * determined simply by dividing the distance between two
|
||
| 706 | * adjacent corners by the number of columns or rows in the image.
|
||
| 707 | * The rotation terms are calculated with these equations:
|
||
| 708 | *
|
||
| 709 | * # B = (A * number_of_columns + C - lower_right_x') / number_of_rows * -1
|
||
| 710 | * # D = (E * number_of_rows + F - lower_right_y') / number_of_columns * -1
|
||
| 711 | *
|
||
| 712 | * @param corner (tl, tr, br, bl)
|
||
| 713 | * @return
|
||
| 714 | */
|
||
| 715 | public static double [] cornersToWorldFile(Point2D [] esq, Dimension size) { |
||
| 716 | double a=0,b=0,c=0,d=0,e=0,f=0; |
||
| 717 | double x1 = esq[0].getX(), y1 = esq[0].getY(); |
||
| 718 | double x2 = esq[1].getX(), y2 = esq[1].getY(); |
||
| 719 | double x3 = esq[2].getX(), y3 = esq[2].getY(); |
||
| 720 | double x4 = esq[3].getX(), y4 = esq[3].getY(); |
||
| 721 | // A: X-scale
|
||
| 722 | a = Math.abs( Math.sqrt( (x1-x2)*(x1-x2)+(y1-y2)*(y1-y2)) |
||
| 723 | / size.getWidth()); |
||
| 724 | |||
| 725 | // E: negative Y-scale
|
||
| 726 | e = - Math.abs(Math.sqrt((x1-x4)*(x1-x4)+ |
||
| 727 | (y1-y4)*(y1-y4))/size.getHeight()); |
||
| 728 | |||
| 729 | // C, F: upper-left coordinates
|
||
| 730 | c = x1; |
||
| 731 | f = y1; |
||
| 732 | |||
| 733 | // B & D: rotation parameters
|
||
| 734 | b = (a * size.getWidth() + c - x3 ) / size.getHeight() * -1;
|
||
| 735 | d = (e * size.getHeight() + f - y3 ) / size.getWidth() * -1;
|
||
| 736 | |||
| 737 | double [] wf = {a,d,b,e,c,f}; |
||
| 738 | return wf;
|
||
| 739 | } |
||
| 740 | public static String printWF(String fName, Point2D [] esq, Dimension sz) { |
||
| 741 | double [] wf = GeoRasterFile.cornersToWorldFile(esq, sz); |
||
| 742 | System.out.println("wf para "+fName); |
||
| 743 | System.out.println(esq+"\n"+sz); |
||
| 744 | String wfData = ""; |
||
| 745 | for (int i=0; i<6; i++) |
||
| 746 | wfData += wf[i]+"\n";
|
||
| 747 | System.out.println(wfData);
|
||
| 748 | return wfData;
|
||
| 749 | } |
||
| 750 | |||
| 751 | public static void saveWF(String fName, String data) throws IOException { |
||
| 752 | FileWriter fw = new FileWriter(fName); |
||
| 753 | fw.write(data); |
||
| 754 | fw.flush(); |
||
| 755 | fw.close(); |
||
| 756 | } |
||
| 757 | 4965 | nacho | |
| 758 | /**
|
||
| 759 | * Cosulta si hay que verificar la relaci?n de aspecto de la imagen, es decir comprueba que el ancho/alto
|
||
| 760 | * pasados a updateImage coinciden con el ancho/alto solicitado en setView a la imagen
|
||
| 761 | * @return true si est? verificando la relaci?n de aspecto.
|
||
| 762 | */
|
||
| 763 | public boolean mustVerifySize() { |
||
| 764 | return verifySize;
|
||
| 765 | } |
||
| 766 | |||
| 767 | /**
|
||
| 768 | * Asigna el flag que dice si hay que verificar la relaci?n de aspecto de la imagen, es decir
|
||
| 769 | * comprueba que el ancho/alto pasados a updateImage coinciden con el ancho/alto solicitado
|
||
| 770 | * en setView a la imagen.
|
||
| 771 | * @return true si est? verificando la relaci?n de aspecto.
|
||
| 772 | */
|
||
| 773 | public void setMustVerifySize(boolean verifySize) { |
||
| 774 | this.verifySize = verifySize;
|
||
| 775 | } |
||
| 776 | |||
| 777 | 2809 | nacho | abstract public byte[] getWindow(int ulX, int ulY, int sizeX, int sizeY, int band); |
| 778 | abstract public int getBlockSize(); |
||
| 779 | 2849 | nacho | |
| 780 | 5894 | nacho | /**
|
| 781 | * Obtiene el objeto que contiene los metadatos. Este m?todo debe ser redefinido por los
|
||
| 782 | * drivers si necesitan devolver metadatos.
|
||
| 783 | * @return
|
||
| 784 | */
|
||
| 785 | public Metadata getMetadata(){
|
||
| 786 | return null; |
||
| 787 | } |
||
| 788 | 2849 | nacho | |
| 789 | /**
|
||
| 790 | * Asigna un extent temporal que puede coincidir con el de la vista. Esto es
|
||
| 791 | * util para cargar imagenes sin georreferenciar ya que podemos asignar el extent
|
||
| 792 | * que queramos para ajustarnos a una vista concreta
|
||
| 793 | * @param tempExtent The tempExtent to set.
|
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| 794 | */
|
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| 795 | 3084 | nacho | public void setExtent(Extent ext) { |
| 796 | this.extent = ext;
|
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| 797 | 2849 | nacho | } |
| 798 | 6064 | nacho | |
| 799 | 6037 | nacho | public boolean isGeoreferenced(){ |
| 800 | return true; |
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| 801 | } |
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| 802 | 8765 | jjdelcerro | |
| 803 | /**
|
||
| 804 | * M?todo que indica si existe un fichero .rmf asociado al GeoRasterFile.
|
||
| 805 | * @return
|
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| 806 | */
|
||
| 807 | public boolean rmfExists(){ |
||
| 808 | return this.rmfExists; |
||
| 809 | } |
||
| 810 | |||
| 811 | /**
|
||
| 812 | * Obtiene los par?metros de la transformaci?n af?n que corresponde con los elementos de
|
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| 813 | * un fichero tfw.
|
||
| 814 | * <UL>
|
||
| 815 | * <LI>[1]tama?o de pixel en X</LI>
|
||
| 816 | * <LI>[2]rotaci?n en X</LI>
|
||
| 817 | * <LI>[4]rotaci?n en Y</LI>
|
||
| 818 | * <LI>[5]tama?o de pixel en Y</LI>
|
||
| 819 | * <LI>[0]origen en X</LI>
|
||
| 820 | * <LI>[3]origen en Y</LI>
|
||
| 821 | * </UL>
|
||
| 822 | * Este m?todo debe ser reimplementado por el driver si tiene esta informaci?n. En principio
|
||
| 823 | * Gdal es capaz de proporcionarla de esta forma.
|
||
| 824 | * @return vector de double con los elementos de la transformaci?n af?n.
|
||
| 825 | */
|
||
| 826 | public double[] getTransform(){return null;} |
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| 827 | 2 | luisw | } |