gvsig-raster / org.gvsig.raster.gdal / branches / org.gvsig.raster.gdal_dataaccess_refactoring / org.gvsig.raster.gdal.io / src / main / java / org / gvsig / raster / gdal / io / GdalNative.java @ 2434
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| 1 | 488 | nbrodin | /* gvSIG. Geographic Information System of the Valencian Government
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| 2 | *
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| 3 | * Copyright (C) 2007-2008 Infrastructures and Transports Department
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| 4 | * of the Valencian Government (CIT)
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| 5 | *
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| 6 | * 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., 51 Franklin Street, Fifth Floor, Boston,
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| 19 | * MA 02110-1301, USA.
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| 20 | *
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| 21 | */
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| 22 | package org.gvsig.raster.gdal.io; |
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| 23 | |||
| 24 | 1745 | nbrodin | import java.awt.Color; |
| 25 | 2232 | nbrodin | import java.awt.Rectangle; |
| 26 | 488 | nbrodin | import java.awt.geom.AffineTransform; |
| 27 | import java.awt.geom.NoninvertibleTransformException; |
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| 28 | import java.awt.geom.Point2D; |
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| 29 | import java.io.IOException; |
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| 30 | 1745 | nbrodin | import java.util.ArrayList; |
| 31 | import java.util.List; |
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| 32 | 488 | nbrodin | |
| 33 | import org.gvsig.fmap.dal.coverage.RasterLibrary; |
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| 34 | import org.gvsig.fmap.dal.coverage.RasterLocator; |
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| 35 | import org.gvsig.fmap.dal.coverage.dataset.Buffer; |
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| 36 | import org.gvsig.fmap.dal.coverage.datastruct.BandList; |
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| 37 | 1745 | nbrodin | import org.gvsig.fmap.dal.coverage.datastruct.ColorItem; |
| 38 | 488 | nbrodin | import org.gvsig.fmap.dal.coverage.datastruct.Extent; |
| 39 | 859 | nbrodin | import org.gvsig.fmap.dal.coverage.datastruct.NoData; |
| 40 | 488 | nbrodin | import org.gvsig.fmap.dal.coverage.exception.ProcessInterruptedException; |
| 41 | 906 | nbrodin | import org.gvsig.fmap.dal.coverage.store.props.ColorInterpretation; |
| 42 | import org.gvsig.fmap.dal.coverage.store.props.ColorTable; |
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| 43 | 620 | nbrodin | import org.gvsig.fmap.dal.coverage.util.FileUtils; |
| 44 | 805 | nbrodin | import org.gvsig.jgdal.Gdal; |
| 45 | import org.gvsig.jgdal.GdalBuffer; |
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| 46 | 1745 | nbrodin | import org.gvsig.jgdal.GdalColorEntry; |
| 47 | import org.gvsig.jgdal.GdalColorTable; |
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| 48 | 805 | nbrodin | import org.gvsig.jgdal.GdalException; |
| 49 | import org.gvsig.jgdal.GdalRasterBand; |
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| 50 | import org.gvsig.jgdal.GeoTransform; |
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| 51 | 1745 | nbrodin | import org.gvsig.raster.impl.datastruct.ColorItemImpl; |
| 52 | 859 | nbrodin | import org.gvsig.raster.impl.datastruct.DefaultNoData; |
| 53 | 488 | nbrodin | import org.gvsig.raster.impl.datastruct.ExtentImpl; |
| 54 | import org.gvsig.raster.impl.process.RasterTask; |
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| 55 | import org.gvsig.raster.impl.process.RasterTaskQueue; |
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| 56 | import org.gvsig.raster.impl.store.properties.DataStoreColorInterpretation; |
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| 57 | import org.gvsig.raster.impl.store.properties.DataStoreColorTable; |
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| 58 | import org.gvsig.raster.impl.store.properties.DataStoreMetadata; |
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| 59 | import org.gvsig.raster.impl.store.properties.DataStoreTransparency; |
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| 60 | 1054 | nbrodin | import org.gvsig.tools.dispose.Disposable; |
| 61 | import org.gvsig.tools.task.TaskStatus; |
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| 62 | 488 | nbrodin | /**
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| 63 | * Soporte 'nativo' para ficheros desde GDAL.
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| 64 | *
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| 65 | * @author Luis W. Sevilla (sevilla_lui@gva.es)
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| 66 | * @author Nacho Brodin (nachobrodin@gmail.com)
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| 67 | */
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| 68 | 1054 | nbrodin | public class GdalNative extends Gdal implements Disposable { |
| 69 | 488 | nbrodin | private String fileName = null; |
| 70 | private String shortName = ""; |
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| 71 | public GeoTransform trans = null; |
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| 72 | public int width = 0, height = 0; |
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| 73 | public double originX = 0D, originY = 0D; |
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| 74 | public String version = ""; |
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| 75 | protected int rBandNr = 1, gBandNr = 2, bBandNr = 3, aBandNr = 4; |
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| 76 | private int[] dataType = null; |
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| 77 | DataStoreMetadata metadata = null;
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| 78 | protected boolean georeferenced = true; |
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| 79 | |||
| 80 | /**
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| 81 | * Vectores que contiene los desplazamientos de un pixel cuando hay supersampling.
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| 82 | 906 | nbrodin | * , es decir el n?mero de pixels de pantalla que tiene un pixel de imagen. Como todos
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| 83 | 488 | nbrodin | * los pixeles no tienen el mismo ancho y alto ha de meterse en un array y no puede ser
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| 84 | 906 | nbrodin | * una variable. Adem?s hay que tener en cuenta que el primer y ?ltimo pixel son de
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| 85 | * distinto tama?o que el resto.
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| 86 | 488 | nbrodin | */
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| 87 | 906 | nbrodin | public int[] stepArrayX = null; |
| 88 | public int[] stepArrayY = null; |
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| 89 | protected GdalRasterBand[] gdalBands = null; |
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| 90 | private double lastReadLine = -1; |
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| 91 | 2239 | nbrodin | private int overviewWidth = -1; |
| 92 | private int overviewHeight = -1; |
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| 93 | 906 | nbrodin | private int currentViewWidth = -1; |
| 94 | private int currentViewHeight = -1; |
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| 95 | private double currentViewX = 0D; |
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| 96 | private double viewportScaleX = 0D; |
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| 97 | private double viewportScaleY = 0D; |
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| 98 | private double stepX = 0D; |
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| 99 | private double stepY = 0D; |
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| 100 | public boolean isSupersampling = false; |
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| 101 | private boolean open = false; |
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| 102 | 488 | nbrodin | /**
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| 103 | * Estado de transparencia del raster.
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| 104 | */
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| 105 | 906 | nbrodin | protected DataStoreTransparency fileTransparency = null; |
| 106 | protected DataStoreColorTable palette = null; |
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| 107 | protected DataStoreColorInterpretation colorInterpr = null; |
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| 108 | protected AffineTransform ownTransformation = null; |
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| 109 | protected AffineTransform externalTransformation = new AffineTransform(); |
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| 110 | 488 | nbrodin | |
| 111 | 1749 | nbrodin | public static int getGdalTypeFromRasterBufType(int rasterBufType) { |
| 112 | switch (rasterBufType) {
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| 113 | case Buffer.TYPE_BYTE: return Gdal.GDT_Byte; |
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| 114 | case Buffer.TYPE_USHORT: return Gdal.GDT_UInt16; |
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| 115 | case Buffer.TYPE_SHORT: return Gdal.GDT_Int16; |
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| 116 | case Buffer.TYPE_INT: return Gdal.GDT_Int32; |
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| 117 | case Buffer.TYPE_FLOAT: return Gdal.GDT_Float32; |
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| 118 | case Buffer.TYPE_DOUBLE: return Gdal.GDT_Float64; |
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| 119 | case Buffer.TYPE_UNDEFINED: return Gdal.GDT_Unknown; |
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| 120 | case Buffer.TYPE_IMAGE: return Gdal.GDT_Byte; |
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| 121 | } |
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| 122 | return Gdal.GDT_Unknown;
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| 123 | } |
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| 124 | 488 | nbrodin | |
| 125 | /**
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| 126 | 1749 | nbrodin | * Conversi?n de los tipos de datos de gdal a los tipos de datos de RasterBuf
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| 127 | * @param gdalType Tipo de dato de gdal
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| 128 | * @return Tipo de dato de RasterBuf
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| 129 | */
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| 130 | public static int getRasterBufTypeFromGdalType(int gdalType) { |
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| 131 | switch (gdalType) {
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| 132 | case 1:// Eight bit unsigned integer GDT_Byte = 1 |
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| 133 | return Buffer.TYPE_BYTE; |
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| 134 | |||
| 135 | case 3:// Sixteen bit signed integer GDT_Int16 = 3, |
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| 136 | return Buffer.TYPE_SHORT; |
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| 137 | |||
| 138 | case 2:// Sixteen bit unsigned integer GDT_UInt16 = 2 |
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| 139 | //return RasterBuffer.TYPE_USHORT;
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| 140 | return Buffer.TYPE_SHORT; //Apa?o para usar los tipos de datos que soportamos |
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| 141 | |||
| 142 | case 5:// Thirty two bit signed integer GDT_Int32 = 5 |
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| 143 | return Buffer.TYPE_INT; |
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| 144 | |||
| 145 | case 6:// Thirty two bit floating point GDT_Float32 = 6 |
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| 146 | return Buffer.TYPE_FLOAT; |
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| 147 | |||
| 148 | case 7:// Sixty four bit floating point GDT_Float64 = 7 |
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| 149 | return Buffer.TYPE_DOUBLE; |
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| 150 | |||
| 151 | // TODO:Estos tipos de datos no podemos gestionarlos. Habria que definir
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| 152 | // el tipo complejo y usar el tipo long que de momento no se gasta.
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| 153 | case 4:// Thirty two bit unsigned integer GDT_UInt32 = 4, |
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| 154 | return Buffer.TYPE_INT; |
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| 155 | //return RasterBuffer.TYPE_UNDEFINED; // Deberia devolver un Long
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| 156 | |||
| 157 | case 8:// Complex Int16 GDT_CInt16 = 8 |
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| 158 | case 9:// Complex Int32 GDT_CInt32 = 9 |
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| 159 | case 10:// Complex Float32 GDT_CFloat32 = 10 |
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| 160 | case 11:// Complex Float64 GDT_CFloat64 = 11 |
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| 161 | return Buffer.TYPE_UNDEFINED; |
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| 162 | } |
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| 163 | return Buffer.TYPE_UNDEFINED; |
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| 164 | } |
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| 165 | |||
| 166 | /**
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| 167 | 488 | nbrodin | * Overview usada en el ?ltimo setView
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| 168 | */
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| 169 | int currentOverview = -1; |
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| 170 | |||
| 171 | public GdalNative(String fName) throws GdalException, IOException { |
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| 172 | super();
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| 173 | init(fName); |
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| 174 | } |
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| 175 | |||
| 176 | private void init(String fName) throws GdalException, IOException { |
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| 177 | fileName = fName; |
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| 178 | open(fName, GA_ReadOnly); |
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| 179 | open = true;
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| 180 | if (getPtro() == -1) |
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| 181 | throw new GdalException("Error en la apertura del fichero. El fichero no tiene un formato v?lido."); |
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| 182 | // ext = RasterUtilities.getExtensionFromFileName(fName);
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| 183 | width = getRasterXSize(); |
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| 184 | height = getRasterYSize(); |
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| 185 | 937 | nbrodin | |
| 186 | 488 | nbrodin | int[] dt = new int[getRasterCount()]; |
| 187 | for (int i = 0; i < getRasterCount(); i++) |
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| 188 | dt[i] = this.getRasterBand(i + 1).getRasterDataType(); |
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| 189 | setDataType(dt); |
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| 190 | shortName = getDriverShortName(); |
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| 191 | 2308 | nbrodin | colorInterpr = new DataStoreColorInterpretation(getRasterCount());
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| 192 | fileTransparency = new DataStoreTransparency(colorInterpr);
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| 193 | 488 | nbrodin | metadata = new DataStoreMetadata(getMetadata(), colorInterpr);
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| 194 | |||
| 195 | // Asignamos la interpretaci?n de color leida por gdal a cada banda. Esto
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| 196 | // nos sirve para saber que banda de la imagen va asignada a cada banda de
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| 197 | // visualizaci?n (ARGB)
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| 198 | metadata.initNoDataByBand(getRasterCount()); |
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| 199 | for (int i = 0; i < getRasterCount(); i++) { |
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| 200 | GdalRasterBand rb = getRasterBand(i + 1);
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| 201 | String colorInt = getColorInterpretationName(rb.getRasterColorInterpretation());
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| 202 | metadata.setNoDataEnabled(rb.existsNoDataValue()); |
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| 203 | 859 | nbrodin | if(rb.existsNoDataValue()) {
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| 204 | metadata.setNoDataValue(i, rb.getRasterNoDataValue()); |
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| 205 | metadata.setNoDataEnabled(rb.existsNoDataValue()); |
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| 206 | } |
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| 207 | 488 | nbrodin | colorInterpr.setColorInterpValue(i, colorInt); |
| 208 | if (colorInt.equals("Alpha")) |
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| 209 | fileTransparency.setTransparencyBand(i); |
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| 210 | |||
| 211 | if (rb.getRasterColorTable() != null && palette == null) { |
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| 212 | 1745 | nbrodin | palette = new DataStoreColorTable(gdalColorTable2ColorItems(rb.getRasterColorTable()), false); |
| 213 | 488 | nbrodin | // fileTransparency.setTransparencyRangeList(palette.getTransparencyRange());
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| 214 | } |
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| 215 | } |
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| 216 | fileTransparency.setTransparencyByPixelFromMetadata(metadata); |
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| 217 | |||
| 218 | try {
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| 219 | trans = getGeoTransform(); |
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| 220 | |||
| 221 | boolean isCorrect = false; |
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| 222 | for (int i = 0; i < trans.adfgeotransform.length; i++) |
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| 223 | if (trans.adfgeotransform[i] != 0) |
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| 224 | isCorrect = true;
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| 225 | if (!isCorrect)
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| 226 | throw new GdalException(""); |
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| 227 | 2303 | nbrodin | |
| 228 | double psX = trans.adfgeotransform[1]; |
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| 229 | double psY = trans.adfgeotransform[5]; |
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| 230 | double rotX = trans.adfgeotransform[4]; |
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| 231 | double rotY = trans.adfgeotransform[2]; |
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| 232 | double offX = trans.adfgeotransform[0]; |
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| 233 | double offY = trans.adfgeotransform[3]; |
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| 234 | |||
| 235 | ownTransformation = new AffineTransform(psX, rotX, rotY, psY, offX, offY); |
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| 236 | //trans.adfgeotransform[1], trans.adfgeotransform[4], trans.adfgeotransform[2], trans.adfgeotransform[5], trans.adfgeotransform[0], trans.adfgeotransform[3]);
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| 237 | 488 | nbrodin | externalTransformation = (AffineTransform) ownTransformation.clone();
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| 238 | 2239 | nbrodin | overviewWidth = width; |
| 239 | overviewHeight = height; |
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| 240 | 488 | nbrodin | |
| 241 | this.georeferenced = true; |
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| 242 | } catch (GdalException exc) {
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| 243 | // Transformaci?n para ficheros sin georreferenciaci?n. Se invierte la Y
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| 244 | // ya que las WC decrecen de
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| 245 | // arriba a abajo y los pixeles crecen de arriba a abajo
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| 246 | ownTransformation = new AffineTransform(1, 0, 0, -1, 0, height); |
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| 247 | externalTransformation = (AffineTransform) ownTransformation.clone();
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| 248 | 2239 | nbrodin | overviewWidth = width; |
| 249 | overviewHeight = height; |
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| 250 | 488 | nbrodin | this.georeferenced = false; |
| 251 | } |
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| 252 | } |
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| 253 | |||
| 254 | /**
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| 255 | * Returns true if this provider is open and false if don't
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| 256 | * @return
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| 257 | */
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| 258 | public boolean isOpen() { |
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| 259 | return open;
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| 260 | } |
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| 261 | |||
| 262 | /**
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| 263 | * Obtiene el flag que informa de si el raster tiene valor no data o no.
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| 264 | * Consultar? todas las bandas del mismo y si alguna tiene valor no data
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| 265 | * devuelve true sino devolver? false.
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| 266 | * @return true si tiene valor no data y false si no lo tiene
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| 267 | * @throws GdalException
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| 268 | */
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| 269 | public boolean existsNoDataValue() throws GdalException { |
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| 270 | for (int i = 0; i < getRasterCount(); i++) { |
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| 271 | GdalRasterBand rb = getRasterBand(i + 1);
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| 272 | if (rb.existsNoDataValue())
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| 273 | return true; |
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| 274 | } |
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| 275 | return false; |
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| 276 | } |
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| 277 | |||
| 278 | /**
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| 279 | * Obtiene el flag que informa de si el raster tiene valor no data o no
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| 280 | * en una banda concreta.
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| 281 | * @return true si tiene valor no data en esa banda y false si no lo tiene
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| 282 | * @param band Posici?n de la banda a consultar (0..n)
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| 283 | * @throws GdalException
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| 284 | */
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| 285 | public boolean existsNoDataValue(int band) throws GdalException { |
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| 286 | GdalRasterBand rb = getRasterBand(band + 1);
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| 287 | return rb.existsNoDataValue();
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| 288 | } |
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| 289 | |||
| 290 | /**
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| 291 | 859 | nbrodin | * Gets nodata value
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| 292 | 488 | nbrodin | * @return
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| 293 | */
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| 294 | 859 | nbrodin | public NoData getNoDataValue() {
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| 295 | Number value = null; |
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| 296 | 1749 | nbrodin | int type = getRasterBufTypeFromGdalType(getDataType()[0]); |
| 297 | 864 | nbrodin | if (metadata != null && metadata.isNoDataEnabled() && metadata.getNoDataValue().length > 0) { |
| 298 | 859 | nbrodin | switch (type) {
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| 299 | case Buffer.TYPE_BYTE: |
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| 300 | if (metadata == null || metadata.getNoDataValue().length == 0) |
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| 301 | value = new Byte(RasterLibrary.defaultByteNoDataValue); |
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| 302 | else
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| 303 | value = new Byte((byte)metadata.getNoDataValue()[0]); |
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| 304 | break;
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| 305 | case Buffer.TYPE_SHORT: |
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| 306 | if (metadata == null || metadata.getNoDataValue().length == 0) |
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| 307 | value = new Short(RasterLibrary.defaultShortNoDataValue); |
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| 308 | else
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| 309 | value = new Short((short)metadata.getNoDataValue()[0]); |
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| 310 | break;
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| 311 | case Buffer.TYPE_INT: |
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| 312 | if (metadata == null || metadata.getNoDataValue().length == 0) |
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| 313 | value = new Integer((int)RasterLibrary.defaultIntegerNoDataValue); |
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| 314 | else
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| 315 | value = new Integer((int)metadata.getNoDataValue()[0]); |
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| 316 | break;
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| 317 | case Buffer.TYPE_FLOAT: |
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| 318 | if (metadata == null || metadata.getNoDataValue().length == 0) |
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| 319 | value = new Float(RasterLibrary.defaultFloatNoDataValue); |
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| 320 | else
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| 321 | value = new Float(metadata.getNoDataValue()[0]); |
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| 322 | break;
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| 323 | case Buffer.TYPE_DOUBLE: |
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| 324 | if (metadata == null || metadata.getNoDataValue().length == 0) |
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| 325 | value = new Double(RasterLibrary.defaultFloatNoDataValue); |
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| 326 | else
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| 327 | value = new Double(metadata.getNoDataValue()[0]); |
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| 328 | break;
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| 329 | } |
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| 330 | } |
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| 331 | 488 | nbrodin | |
| 332 | 2434 | nbrodin | NoData nodata = new DefaultNoData(value, value, fileName);
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| 333 | nodata.setNoDataTransparent(false);
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| 334 | return nodata;
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| 335 | 488 | nbrodin | } |
| 336 | |||
| 337 | /**
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| 338 | * Asigna el tipo de dato
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| 339 | * @param dt entero que representa el tipo de dato
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| 340 | */
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| 341 | public void setDataType(int[] dt) { |
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| 342 | dataType = dt; |
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| 343 | } |
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| 344 | |||
| 345 | /**
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| 346 | * Obtiene el tipo de dato
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| 347 | * @return entero que representa el tipo de dato
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| 348 | */
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| 349 | public int[] getDataType() { |
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| 350 | return dataType;
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| 351 | } |
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| 352 | |||
| 353 | /**
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| 354 | 906 | nbrodin | * Gets the color interpretation
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| 355 | * @return
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| 356 | */
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| 357 | public ColorInterpretation getColorInterpretation() {
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| 358 | return colorInterpr;
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| 359 | } |
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| 360 | |||
| 361 | /**
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| 362 | * Gets the color table
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| 363 | * @return
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| 364 | */
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| 365 | public ColorTable getColorTable() {
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| 366 | return palette;
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| 367 | } |
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| 368 | |||
| 369 | /**
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| 370 | 488 | nbrodin | * Obtiene un punto 2D con las coordenadas del raster a partir de uno en coordenadas
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| 371 | * del punto real.
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| 372 | * Supone rasters no girados
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| 373 | * @param pt punto en coordenadas del punto real
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| 374 | * @return punto en coordenadas del raster
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| 375 | */
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| 376 | public Point2D worldToRasterWithoutRot(Point2D pt) { |
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| 377 | Point2D p = new Point2D.Double(); |
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| 378 | AffineTransform at = new AffineTransform( externalTransformation.getScaleX(), 0, |
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| 379 | 0, externalTransformation.getScaleY(),
|
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| 380 | externalTransformation.getTranslateX(), externalTransformation.getTranslateY()); |
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| 381 | try {
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| 382 | at.inverseTransform(pt, p); |
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| 383 | } catch (NoninvertibleTransformException e) { |
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| 384 | return pt;
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| 385 | } |
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| 386 | return p;
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| 387 | } |
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| 388 | |||
| 389 | /**
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| 390 | * Obtiene un punto 2D con las coordenadas del raster a partir de uno en coordenadas
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| 391 | * del punto real.
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| 392 | * Supone rasters no girados
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| 393 | * @param pt punto en coordenadas del punto real
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| 394 | * @return punto en coordenadas del raster
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| 395 | */
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| 396 | public Point2D worldToRaster(Point2D pt) { |
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| 397 | Point2D p = new Point2D.Double(); |
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| 398 | try {
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| 399 | externalTransformation.inverseTransform(pt, p); |
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| 400 | } catch (NoninvertibleTransformException e) { |
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| 401 | return pt;
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| 402 | } |
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| 403 | return p;
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| 404 | } |
||
| 405 | |||
| 406 | /**
|
||
| 407 | * Obtiene un punto del raster en coordenadas pixel a partir de un punto en coordenadas
|
||
| 408 | * reales.
|
||
| 409 | * @param pt Punto en coordenadas reales
|
||
| 410 | * @return Punto en coordenadas pixel.
|
||
| 411 | */
|
||
| 412 | public Point2D rasterToWorld(Point2D pt) { |
||
| 413 | Point2D p = new Point2D.Double(); |
||
| 414 | externalTransformation.transform(pt, p); |
||
| 415 | return p;
|
||
| 416 | } |
||
| 417 | |||
| 418 | /**
|
||
| 419 | * Calcula el overview a usar. Hay que tener en cuenta que tenemos que tener calculadas las variables
|
||
| 420 | * viewPortScale, currentFullWidth y currentFulHeight
|
||
| 421 | * @param coordenada pixel expresada en double que indica la posici?n superior izquierda
|
||
| 422 | * @throws GdalException
|
||
| 423 | */
|
||
| 424 | private void calcOverview(Point2D tl, Point2D br) throws GdalException { |
||
| 425 | gdalBands[0] = getRasterBand(1); |
||
| 426 | currentOverview = -1;
|
||
| 427 | if (gdalBands[0].getOverviewCount() > 0) { |
||
| 428 | GdalRasterBand ovb = null;
|
||
| 429 | for (int i = gdalBands[0].getOverviewCount() - 1; i > 0; i--) { |
||
| 430 | ovb = gdalBands[0].getOverview(i);
|
||
| 431 | if (ovb.getRasterBandXSize() > getRasterXSize() * viewportScaleX) {
|
||
| 432 | currentOverview = i; |
||
| 433 | viewportScaleX *= ((double) width / (double) ovb.getRasterBandXSize()); |
||
| 434 | viewportScaleY *= ((double) height / (double) ovb.getRasterBandYSize()); |
||
| 435 | stepX = 1D / viewportScaleX;
|
||
| 436 | stepY = 1D / viewportScaleY;
|
||
| 437 | 2239 | nbrodin | overviewWidth = ovb.getRasterBandXSize(); |
| 438 | overviewHeight = ovb.getRasterBandYSize(); |
||
| 439 | 488 | nbrodin | currentViewX = Math.min(tl.getX(), br.getX());
|
| 440 | lastReadLine = Math.min(tl.getY(), br.getY());
|
||
| 441 | break;
|
||
| 442 | } |
||
| 443 | } |
||
| 444 | } |
||
| 445 | } |
||
| 446 | |||
| 447 | public void setView(double dWorldTLX, double dWorldTLY, |
||
| 448 | double dWorldBRX, double dWorldBRY, |
||
| 449 | int nWidth, int nHeight) throws GdalException { |
||
| 450 | 2239 | nbrodin | overviewWidth = width; |
| 451 | overviewHeight = height; |
||
| 452 | 488 | nbrodin | Point2D tl = worldToRaster(new Point2D.Double(dWorldTLX, dWorldTLY)); |
| 453 | Point2D br = worldToRaster(new Point2D.Double(dWorldBRX, dWorldBRY)); |
||
| 454 | // Calcula cual es la primera l?nea a leer;
|
||
| 455 | currentViewWidth = nWidth; |
||
| 456 | currentViewHeight = nHeight; |
||
| 457 | // wcWidth = Math.abs(br.getX() - tl.getX());
|
||
| 458 | |||
| 459 | currentViewX = Math.min(tl.getX(), br.getX());
|
||
| 460 | |||
| 461 | viewportScaleX = (double) currentViewWidth / (br.getX() - tl.getX());
|
||
| 462 | viewportScaleY = (double) currentViewHeight / (br.getY() - tl.getY());
|
||
| 463 | stepX = 1D / viewportScaleX;
|
||
| 464 | stepY = 1D / viewportScaleY;
|
||
| 465 | |||
| 466 | lastReadLine = Math.min(tl.getY(), br.getY());
|
||
| 467 | |||
| 468 | //Para lectura del renderizado (ARGB). readWindow selecciona las bandas que necesita.
|
||
| 469 | |||
| 470 | // calcula el overview a usar
|
||
| 471 | gdalBands = new GdalRasterBand[4]; |
||
| 472 | calcOverview(tl, br); |
||
| 473 | } |
||
| 474 | |||
| 475 | /**
|
||
| 476 | * Selecciona bandas y overview en el objeto GdalRasterBand[] para el n?mero de bandas solicitado.
|
||
| 477 | * @param nbands N?mero de bandas solicitado.
|
||
| 478 | * @throws GdalException
|
||
| 479 | */
|
||
| 480 | public void selectGdalBands(int nbands) throws GdalException { |
||
| 481 | gdalBands = new GdalRasterBand[nbands];
|
||
| 482 | // Selecciona las bandas y los overviews necesarios
|
||
| 483 | gdalBands[0] = getRasterBand(1); |
||
| 484 | for (int i = 0; i < nbands; i++) |
||
| 485 | gdalBands[i] = gdalBands[0];
|
||
| 486 | |||
| 487 | assignDataTypeFromGdalRasterBands(gdalBands); |
||
| 488 | // setDataType(gdalBands[0].getRasterDataType());
|
||
| 489 | |||
| 490 | for (int i = 2; i <= nbands; i++) { |
||
| 491 | if (getRasterCount() >= i) {
|
||
| 492 | gdalBands[i - 1] = getRasterBand(i);
|
||
| 493 | for (int j = i; j < nbands; j++) |
||
| 494 | gdalBands[j] = gdalBands[i - 1];
|
||
| 495 | } |
||
| 496 | } |
||
| 497 | |||
| 498 | if (currentOverview > 0) { |
||
| 499 | gdalBands[0] = gdalBands[0].getOverview(currentOverview); |
||
| 500 | for (int i = 2; i <= nbands; i++) { |
||
| 501 | if (getRasterCount() >= i)
|
||
| 502 | gdalBands[i - 1] = gdalBands[i - 1].getOverview(currentOverview); |
||
| 503 | } |
||
| 504 | } |
||
| 505 | } |
||
| 506 | |||
| 507 | int lastY = -1; |
||
| 508 | |||
| 509 | /**
|
||
| 510 | * Lee una l?nea de bytes
|
||
| 511 | * @param line Buffer donde se cargan los datos
|
||
| 512 | * @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
||
| 513 | * se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
||
| 514 | * por la izquierda a mitad de pixel
|
||
| 515 | * @param gdalBuffer Buffer con la l?nea de datos original
|
||
| 516 | */
|
||
| 517 | private void readLine(byte[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
||
| 518 | double j = 0D; |
||
| 519 | int i = 0; |
||
| 520 | for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
||
| 521 | for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
||
| 522 | line[iBand][i] = gdalBuffer[iBand].buffByte[(int) j];
|
||
| 523 | } |
||
| 524 | } |
||
| 525 | } |
||
| 526 | |||
| 527 | /**
|
||
| 528 | * Lee una l?nea de shorts
|
||
| 529 | * @param line Buffer donde se cargan los datos
|
||
| 530 | * @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
||
| 531 | * se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
||
| 532 | * por la izquierda a mitad de pixel
|
||
| 533 | * @param gdalBuffer Buffer con la l?nea de datos original
|
||
| 534 | */
|
||
| 535 | private void readLine(short[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
||
| 536 | double j = 0D; |
||
| 537 | int i = 0; |
||
| 538 | for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
||
| 539 | for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
||
| 540 | line[iBand][i] = (short) (gdalBuffer[iBand].buffShort[(int) j] & 0xffff); |
||
| 541 | } |
||
| 542 | } |
||
| 543 | } |
||
| 544 | |||
| 545 | /**
|
||
| 546 | * Lee una l?nea de ints
|
||
| 547 | * @param line Buffer donde se cargan los datos
|
||
| 548 | * @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
||
| 549 | * se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
||
| 550 | * por la izquierda a mitad de pixel
|
||
| 551 | * @param gdalBuffer Buffer con la l?nea de datos original
|
||
| 552 | */
|
||
| 553 | private void readLine(int[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
||
| 554 | double j = 0D; |
||
| 555 | int i = 0; |
||
| 556 | for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
||
| 557 | for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
||
| 558 | line[iBand][i] = (gdalBuffer[iBand].buffInt[(int) j] & 0xffffffff); |
||
| 559 | } |
||
| 560 | } |
||
| 561 | } |
||
| 562 | |||
| 563 | /**
|
||
| 564 | * Lee una l?nea de float
|
||
| 565 | * @param line Buffer donde se cargan los datos
|
||
| 566 | * @param initOffset Desplazamiento inicial desde el margen izquierdo. Esto es necesario para cuando
|
||
| 567 | * se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
||
| 568 | * por la izquierda a mitad de pixel
|
||
| 569 | * @param gdalBuffer Buffer con la l?nea de datos original
|
||
| 570 | */
|
||
| 571 | private void readLine(float[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
||
| 572 | double j = 0D; |
||
| 573 | int i = 0; |
||
| 574 | for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
||
| 575 | for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
||
| 576 | line[iBand][i] = gdalBuffer[iBand].buffFloat[(int) j];
|
||
| 577 | } |
||
| 578 | } |
||
| 579 | } |
||
| 580 | |||
| 581 | /**
|
||
| 582 | * Lee una l?nea de doubles
|
||
| 583 | * @param line Buffer donde se cargan los datos
|
||
| 584 | * @param initOffset Desplazamiento inicial desde el margen inzquierdo. Esto es necesario para cuando
|
||
| 585 | * se supersamplea ya que cada pixel de imagen ocupa muchos pixeles de pantalla y puede empezar a dibujarse
|
||
| 586 | * por la izquierda a mitad de pixel
|
||
| 587 | * @param gdalBuffer Buffer con la l?nea de datos original
|
||
| 588 | */
|
||
| 589 | private void readLine(double[][] line, double initOffset, GdalBuffer[] gdalBuffer) { |
||
| 590 | double j = 0D; |
||
| 591 | int i = 0; |
||
| 592 | for (int iBand = 0; iBand < gdalBuffer.length; iBand++) { |
||
| 593 | for (i = 0, j = initOffset; i < currentViewWidth && j < gdalBuffer[0].getSize(); i++, j += stepX) { |
||
| 594 | line[iBand][i] = gdalBuffer[iBand].buffDouble[(int) j];
|
||
| 595 | } |
||
| 596 | } |
||
| 597 | } |
||
| 598 | |||
| 599 | /**
|
||
| 600 | * Lee una l?nea completa del raster y devuelve un array del tipo correcto. Esta funci?n es util
|
||
| 601 | * para una lectura rapida de todo el fichero sin necesidad de asignar vista.
|
||
| 602 | * @param nLine N?mero de l?nea a leer
|
||
| 603 | * @param band Banda requerida
|
||
| 604 | * @return Object que es un array unidimendional del tipo de datos del raster
|
||
| 605 | * @throws GdalException
|
||
| 606 | */
|
||
| 607 | public Object readCompleteLine(int nLine, int band) throws GdalException { |
||
| 608 | GdalRasterBand gdalBand = super.getRasterBand(band + 1); |
||
| 609 | GdalBuffer gdalBuf = null;
|
||
| 610 | |||
| 611 | gdalBuf = gdalBand.readRaster(0, nLine, getRasterXSize(), 1, getRasterXSize(), 1, dataType[band]); |
||
| 612 | |||
| 613 | if (dataType[band] == GDT_Byte)
|
||
| 614 | return gdalBuf.buffByte;
|
||
| 615 | |||
| 616 | if (dataType[band] == GDT_Int16 || dataType[band] == GDT_UInt16)
|
||
| 617 | return gdalBuf.buffShort;
|
||
| 618 | |||
| 619 | if (dataType[band] == GDT_Int32 || dataType[band] == GDT_UInt32)
|
||
| 620 | return gdalBuf.buffInt;
|
||
| 621 | |||
| 622 | if (dataType[band] == GDT_Float32)
|
||
| 623 | return gdalBuf.buffFloat;
|
||
| 624 | |||
| 625 | if (dataType[band] == GDT_Float64)
|
||
| 626 | return gdalBuf.buffDouble;
|
||
| 627 | |||
| 628 | if (dataType[band] == GDT_CInt16 || dataType[band] == GDT_CInt32 ||
|
||
| 629 | dataType[band] == GDT_CFloat32 || dataType[band] == GDT_CFloat64) |
||
| 630 | return null; |
||
| 631 | |||
| 632 | return null; |
||
| 633 | } |
||
| 634 | |||
| 635 | /**
|
||
| 636 | * Lee una bloque completo del raster y devuelve un array tridimensional del tipo correcto. Esta funci?n es util
|
||
| 637 | * para una lectura rapida de todo el fichero sin necesidad de asignar vista.
|
||
| 638 | * @param nLine N?mero de l?nea a leer
|
||
| 639 | * @param band Banda requerida
|
||
| 640 | * @return Object que es un array unidimendional del tipo de datos del raster
|
||
| 641 | * @throws GdalException
|
||
| 642 | */
|
||
| 643 | 771 | nbrodin | public Object readBlock(int pos, int blockHeight, double scale) throws GdalException, ProcessInterruptedException { |
| 644 | 488 | nbrodin | bBandNr = super.getRasterCount();
|
| 645 | 771 | nbrodin | int widthBuffer = (int)(getRasterXSize() * scale); |
| 646 | int heightBuffer = (int)(blockHeight * scale); |
||
| 647 | 488 | nbrodin | |
| 648 | 1419 | nbrodin | RasterTask task = RasterTaskQueue.get(Thread.currentThread().getId() + ""); |
| 649 | 488 | nbrodin | |
| 650 | GdalRasterBand[] gdalBand = new GdalRasterBand[bBandNr]; |
||
| 651 | for (int iBand = 0; iBand < gdalBand.length; iBand++) |
||
| 652 | gdalBand[iBand] = super.getRasterBand(iBand + 1); |
||
| 653 | |||
| 654 | GdalBuffer[] gdalBuf = new GdalBuffer[bBandNr]; |
||
| 655 | |||
| 656 | if (dataType[0] == GDT_Byte) { |
||
| 657 | 771 | nbrodin | byte[][][] buf = new byte[bBandNr][heightBuffer][widthBuffer]; |
| 658 | 488 | nbrodin | for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 659 | 771 | nbrodin | gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, getRasterXSize(), blockHeight, widthBuffer, heightBuffer, dataType[0]); |
| 660 | for (int iRow = 0; iRow < heightBuffer; iRow++) { |
||
| 661 | for (int iCol = 0; iCol < widthBuffer; iCol++) |
||
| 662 | buf[iBand][iRow][iCol] = gdalBuf[iBand].buffByte[iRow * widthBuffer + iCol]; |
||
| 663 | 488 | nbrodin | if(task.getEvent() != null) |
| 664 | task.manageEvent(task.getEvent()); |
||
| 665 | } |
||
| 666 | 1054 | nbrodin | gdalBuf[iBand].buffByte = null;
|
| 667 | 488 | nbrodin | } |
| 668 | return buf;
|
||
| 669 | } else if (dataType[0] == GDT_CInt16 || dataType[0] == GDT_Int16 || dataType[0] == GDT_UInt16) { |
||
| 670 | 771 | nbrodin | short[][][] buf = new short[bBandNr][heightBuffer][widthBuffer]; |
| 671 | 488 | nbrodin | for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 672 | 771 | nbrodin | gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, getRasterXSize(), blockHeight, widthBuffer, heightBuffer, dataType[0]); |
| 673 | for (int iRow = 0; iRow < heightBuffer; iRow++) { |
||
| 674 | for (int iCol = 0; iCol < widthBuffer; iCol++) |
||
| 675 | buf[iBand][iRow][iCol] = gdalBuf[iBand].buffShort[iRow * widthBuffer + iCol]; |
||
| 676 | 488 | nbrodin | if(task.getEvent() != null) |
| 677 | task.manageEvent(task.getEvent()); |
||
| 678 | } |
||
| 679 | 1054 | nbrodin | gdalBuf[iBand].buffShort = null;
|
| 680 | 488 | nbrodin | } |
| 681 | return buf;
|
||
| 682 | } else if (dataType[0] == GDT_CInt32 || dataType[0] == GDT_Int32 || dataType[0] == GDT_UInt32) { |
||
| 683 | 771 | nbrodin | int[][][] buf = new int[bBandNr][heightBuffer][widthBuffer]; |
| 684 | 488 | nbrodin | for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 685 | 771 | nbrodin | gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, getRasterXSize(), blockHeight, widthBuffer, heightBuffer, dataType[0]); |
| 686 | for (int iRow = 0; iRow < heightBuffer; iRow++) { |
||
| 687 | for (int iCol = 0; iCol < widthBuffer; iCol++) |
||
| 688 | buf[iBand][iRow][iCol] = gdalBuf[iBand].buffInt[iRow * widthBuffer + iCol]; |
||
| 689 | 488 | nbrodin | if(task.getEvent() != null) |
| 690 | task.manageEvent(task.getEvent()); |
||
| 691 | } |
||
| 692 | 1054 | nbrodin | gdalBuf[iBand].buffInt = null;
|
| 693 | 488 | nbrodin | } |
| 694 | return buf;
|
||
| 695 | } else if(dataType[0] == GDT_Float32 || dataType[0] == GDT_CFloat32) { |
||
| 696 | 771 | nbrodin | float[][][] buf = new float[bBandNr][heightBuffer][widthBuffer]; |
| 697 | 488 | nbrodin | for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 698 | 771 | nbrodin | gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, getRasterXSize(), blockHeight, widthBuffer, heightBuffer, dataType[0]); |
| 699 | for (int iRow = 0; iRow < heightBuffer; iRow++) { |
||
| 700 | for (int iCol = 0; iCol < widthBuffer; iCol++) |
||
| 701 | buf[iBand][iRow][iCol] = gdalBuf[iBand].buffFloat[iRow * widthBuffer + iCol]; |
||
| 702 | 488 | nbrodin | if(task.getEvent() != null) |
| 703 | task.manageEvent(task.getEvent()); |
||
| 704 | } |
||
| 705 | 1054 | nbrodin | gdalBuf[iBand].buffFloat = null;
|
| 706 | 488 | nbrodin | } |
| 707 | return buf;
|
||
| 708 | } else if(dataType[0] == GDT_Float64 || dataType[0] == GDT_CFloat64) { |
||
| 709 | 771 | nbrodin | double[][][] buf = new double[bBandNr][heightBuffer][widthBuffer]; |
| 710 | 488 | nbrodin | for (int iBand = 0; iBand < gdalBuf.length; iBand++) { |
| 711 | 771 | nbrodin | gdalBuf[iBand] = gdalBand[iBand].readRaster(0, pos, getRasterXSize(), blockHeight, widthBuffer, heightBuffer, dataType[0]); |
| 712 | for (int iRow = 0; iRow < heightBuffer; iRow++) { |
||
| 713 | for (int iCol = 0; iCol < widthBuffer; iCol++) |
||
| 714 | buf[iBand][iRow][iCol] = gdalBuf[iBand].buffDouble[iRow * widthBuffer + iCol]; |
||
| 715 | 488 | nbrodin | if(task.getEvent() != null) |
| 716 | task.manageEvent(task.getEvent()); |
||
| 717 | } |
||
| 718 | 1054 | nbrodin | gdalBuf[iBand].buffDouble = null;
|
| 719 | 488 | nbrodin | } |
| 720 | return buf;
|
||
| 721 | } |
||
| 722 | |||
| 723 | 771 | nbrodin | return null; |
| 724 | 488 | nbrodin | } |
| 725 | |||
| 726 | /**
|
||
| 727 | * Lectura de una l?nea de datos.
|
||
| 728 | * @param line
|
||
| 729 | * @throws GdalException
|
||
| 730 | */
|
||
| 731 | public void readLine(Object line) throws GdalException { |
||
| 732 | int w = (int) (Math.ceil(((double)currentViewWidth)*stepX) + 1); |
||
| 733 | int x = (int) (currentViewX); |
||
| 734 | int y = (int) (lastReadLine); |
||
| 735 | GdalBuffer r = null, g = null, b = null; |
||
| 736 | GdalBuffer a = new GdalBuffer();
|
||
| 737 | |||
| 738 | while(y >= gdalBands[0].getRasterBandYSize()) |
||
| 739 | y--; |
||
| 740 | |||
| 741 | if (x+w > gdalBands[0].getRasterBandXSize()) |
||
| 742 | w = gdalBands[0].getRasterBandXSize()-x;
|
||
| 743 | |||
| 744 | if(gdalBands[0].getRasterColorTable() != null) { |
||
| 745 | 1745 | nbrodin | palette = new DataStoreColorTable(gdalColorTable2ColorItems(gdalBands[0].getRasterColorTable()), false); |
| 746 | 488 | nbrodin | r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType[0]); |
| 747 | } else {
|
||
| 748 | a.buffByte = new byte[w]; |
||
| 749 | r = gdalBands[0].readRaster(x, y, w, 1, w, 1, dataType[0]); |
||
| 750 | g = b = r; |
||
| 751 | if (getRasterCount() > 1 && gdalBands[1] != null) |
||
| 752 | g = gdalBands[1].readRaster(x, y, w, 1, w, 1, dataType[0]); |
||
| 753 | if (getRasterCount() > 2 && gdalBands[2] != null) |
||
| 754 | b = gdalBands[2].readRaster(x, y, w, 1, w, 1, dataType[0]); |
||
| 755 | } |
||
| 756 | |||
| 757 | lastReadLine += stepY; |
||
| 758 | |||
| 759 | double initOffset = Math.abs(currentViewX - ((int)currentViewX)); |
||
| 760 | GdalBuffer[] bands = {r, g, b};
|
||
| 761 | |||
| 762 | if (dataType[0] == GDT_Byte) |
||
| 763 | readLine((byte[][])line, initOffset, bands); |
||
| 764 | else if (dataType[0] == GDT_CInt16 || dataType[0] == GDT_Int16 || dataType[0] == GDT_UInt16) |
||
| 765 | readLine((short[][])line, initOffset, bands); |
||
| 766 | else if (dataType[0] == GDT_CInt32 || dataType[0] == GDT_Int32 || dataType[0] == GDT_UInt32) |
||
| 767 | readLine((int[][])line, initOffset, bands); |
||
| 768 | else if(dataType[0] == GDT_Float32 || dataType[0] == GDT_CFloat32) |
||
| 769 | readLine((float[][])line, initOffset, bands); |
||
| 770 | else if(dataType[0] == GDT_Float64 || dataType[0] == GDT_CFloat64) |
||
| 771 | readLine((double[][])line, initOffset, bands); |
||
| 772 | |||
| 773 | return;
|
||
| 774 | } |
||
| 775 | 1745 | nbrodin | |
| 776 | private List<ColorItem> gdalColorTable2ColorItems(GdalColorTable table) { |
||
| 777 | try {
|
||
| 778 | List<ColorItem> colorItems = new ArrayList<ColorItem>(); |
||
| 779 | for (int iEntry = 0; iEntry < table.getColorEntryCount(); iEntry++) { |
||
| 780 | GdalColorEntry entry = table.getColorEntryAsRGB(iEntry); |
||
| 781 | |||
| 782 | ColorItem colorItem = new ColorItemImpl();
|
||
| 783 | colorItem.setNameClass("");
|
||
| 784 | colorItem.setValue(iEntry); |
||
| 785 | colorItem.setColor(new Color( (int) (entry.c1 & 0xff), |
||
| 786 | (int) (entry.c2 & 0xff), |
||
| 787 | (int) (entry.c3 & 0xff), |
||
| 788 | (int) (entry.c4 & 0xff))); |
||
| 789 | |||
| 790 | colorItems.add(colorItem); |
||
| 791 | } |
||
| 792 | return colorItems;
|
||
| 793 | } catch (GdalException ex) {
|
||
| 794 | // No se crea la paleta
|
||
| 795 | } |
||
| 796 | return null; |
||
| 797 | } |
||
| 798 | |||
| 799 | 488 | nbrodin | |
| 800 | /**
|
||
| 801 | * Cuando se hace una petici?n de carga de buffer la extensi?n pedida puede
|
||
| 802 | * estar ajustada a la extensi?n del raster o no estarlo. En caso de no
|
||
| 803 | * estarlo los pixeles del buffer que caen fuera de la extensi?n del raster
|
||
| 804 | * tendr?n valor de NoData. Esta funci?n calcula en que pixel del buffer hay
|
||
| 805 | * que empezar a escribir en caso de que este sea mayor que los datos a leer.
|
||
| 806 | *
|
||
| 807 | * @param dWorldTLX Posici?n X superior izquierda en coord reales
|
||
| 808 | * @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
||
| 809 | * @param dWorldBRX Posici?n X inferior derecha en coord reales
|
||
| 810 | * @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
||
| 811 | * @param nWidth Ancho en pixeles del buffer
|
||
| 812 | * @param nHeight Alto en pixeles del buffer
|
||
| 813 | * @return desplazamiento dentro del buffer en X e Y
|
||
| 814 | */
|
||
| 815 | private int[] calcStepBuffer(Extent dataExtent, int nWidth, int nHeight, int[] stpBuffer) { |
||
| 816 | Extent imageExtent = getExtentWithoutRot(); |
||
| 817 | Extent ajustDataExtent = RasterLocator.getManager().getRasterUtils().calculateAdjustedView(dataExtent, imageExtent); |
||
| 818 | if(!RasterLocator.getManager().getRasterUtils().compareExtents(dataExtent, ajustDataExtent)){
|
||
| 819 | Point2D p1 = worldToRasterWithoutRot(new Point2D.Double(ajustDataExtent.minX(), ajustDataExtent.maxY())); |
||
| 820 | Point2D p2 = worldToRasterWithoutRot(new Point2D.Double(ajustDataExtent.maxX(), ajustDataExtent.minY())); |
||
| 821 | Point2D p3 = worldToRasterWithoutRot(new Point2D.Double(dataExtent.minX(), dataExtent.maxY())); |
||
| 822 | // Point2D p4 = worldToRasterWithoutRot(new Point2D.Double(dataExtent.maxX(), dataExtent.minY()));
|
||
| 823 | //Ese es el ancho y alto q tendr?a el buffer en caso de haberse ajustado
|
||
| 824 | int w = (int)Math.abs(Math.ceil(p2.getX()) - Math.floor(p1.getX())); |
||
| 825 | int h = (int)Math.abs(Math.floor(p1.getY()) - Math.ceil(p2.getY())); |
||
| 826 | |||
| 827 | stpBuffer[0] = (int)(p1.getX() + (-p3.getX())); |
||
| 828 | stpBuffer[1] = (int)(p1.getY() + (-p3.getY())); |
||
| 829 | stpBuffer[2] = stpBuffer[0] + w; |
||
| 830 | stpBuffer[3] = stpBuffer[1] + h; |
||
| 831 | return new int[]{w, h}; |
||
| 832 | } |
||
| 833 | return new int[]{nWidth, nHeight}; |
||
| 834 | } |
||
| 835 | |||
| 836 | /**
|
||
| 837 | * Lee una ventana de datos sin resampleo a partir de coordenadas reales.
|
||
| 838 | * @param buf Buffer donde se almacenan los datos
|
||
| 839 | * @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
||
| 840 | * @param dWorldTLX Posici?n X superior izquierda en coord reales
|
||
| 841 | * @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
||
| 842 | * @param dWorldBRX Posici?n X inferior derecha en coord reales
|
||
| 843 | * @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
||
| 844 | * @param nWidth Ancho en pixeles del buffer
|
||
| 845 | * @param nHeight Alto en pixeles del buffer
|
||
| 846 | * @throws GdalException
|
||
| 847 | */
|
||
| 848 | public void readWindow(Buffer buf, BandList bandList, double ulx, double uly,double lrx, double lry, |
||
| 849 | 1054 | nbrodin | int nWidth, int nHeight, boolean adjustToExtent, TaskStatus status) throws GdalException, ProcessInterruptedException { |
| 850 | 488 | nbrodin | Extent petExtent = new ExtentImpl(ulx, uly, lrx, lry);
|
| 851 | setView(ulx, uly, lrx, lry, nWidth, nHeight); |
||
| 852 | Point2D tl = worldToRaster(new Point2D.Double(ulx, uly)); |
||
| 853 | Point2D br = worldToRaster(new Point2D.Double(lrx, lry)); |
||
| 854 | |||
| 855 | if(tl.getX() > br.getX())
|
||
| 856 | tl.setLocation(tl.getX() - 1, tl.getY());
|
||
| 857 | else
|
||
| 858 | br.setLocation(br.getX() - 1, br.getY());
|
||
| 859 | |||
| 860 | if(tl.getY() > br.getY())
|
||
| 861 | tl.setLocation(tl.getX(), tl.getY() - 1);
|
||
| 862 | else
|
||
| 863 | br.setLocation(br.getX(), br.getY() - 1);
|
||
| 864 | |||
| 865 | if(gdalBands.length == 0) |
||
| 866 | return;
|
||
| 867 | |||
| 868 | selectGdalBands(/*buf.getBandCount()*/getRasterCount());
|
||
| 869 | |||
| 870 | int x = (int) Math.round(Math.min(tl.getX(), br.getX())); |
||
| 871 | int y = (int) Math.round(Math.min(tl.getY(), br.getY())); |
||
| 872 | |||
| 873 | int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
||
| 874 | //Si el buffer no se ajusta al extent entonces calculamos en que posici?n comienza a escribirse dentro del buffer
|
||
| 875 | //ya que lo que cae fuera ser?n valores NoData
|
||
| 876 | if(!adjustToExtent){
|
||
| 877 | int[] wh = calcStepBuffer(petExtent, nWidth, nHeight, stpBuffer); |
||
| 878 | if(x < 0) |
||
| 879 | x = 0;
|
||
| 880 | if(y < 0) |
||
| 881 | y = 0;
|
||
| 882 | 1054 | nbrodin | readDataCachedBuffer(buf, bandList, new int[]{x, y, wh[0], wh[1]}, |
| 883 | wh[0], wh[1], 0, 0, stpBuffer, status); |
||
| 884 | 488 | nbrodin | return;
|
| 885 | } |
||
| 886 | |||
| 887 | 1054 | nbrodin | readDataCachedBuffer(buf, bandList, new int[]{x, y, nWidth, nHeight}, |
| 888 | nWidth, nHeight, 0, 0, stpBuffer, status); |
||
| 889 | 488 | nbrodin | } |
| 890 | 2232 | nbrodin | |
| 891 | 2234 | nbrodin | public void readWindow(Buffer buf, BandList bandList, Extent ext, Rectangle adjustedWindow, TaskStatus status) throws GdalException, ProcessInterruptedException { |
| 892 | 2232 | nbrodin | setView(ext.getULX(), ext.getULY(), ext.getLRX(), ext.getLRY(), buf.getWidth(), buf.getHeight()); |
| 893 | |||
| 894 | if(gdalBands.length == 0) |
||
| 895 | return;
|
||
| 896 | |||
| 897 | selectGdalBands(getRasterCount()); |
||
| 898 | |||
| 899 | int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
||
| 900 | 2239 | nbrodin | |
| 901 | adjustedWindow = getAdjustedWindowInOverviewCoordinates(adjustedWindow); |
||
| 902 | 2232 | nbrodin | |
| 903 | readDataCachedBuffer(buf, |
||
| 904 | bandList, |
||
| 905 | 2234 | nbrodin | new int[]{(int)adjustedWindow.getX(), (int)adjustedWindow.getY(), (int)adjustedWindow.getWidth(), (int)adjustedWindow.getHeight()}, |
| 906 | 2232 | nbrodin | buf.getWidth(), |
| 907 | buf.getHeight(), |
||
| 908 | 0, 0, stpBuffer, status); |
||
| 909 | } |
||
| 910 | 2239 | nbrodin | |
| 911 | /**
|
||
| 912 | * Adjust the request rectangle to the overview size. The requests in Gdal have to be
|
||
| 913 | * in the overview scale
|
||
| 914 | * @param adjustedWindow
|
||
| 915 | * @return
|
||
| 916 | */
|
||
| 917 | private Rectangle getAdjustedWindowInOverviewCoordinates(Rectangle adjustedWindow) { |
||
| 918 | 2433 | nbrodin | int nWidth = (int)(((long)adjustedWindow.getWidth() * overviewWidth) / width); |
| 919 | int nHeight = (int)(((long)adjustedWindow.getHeight() * overviewHeight) / height); |
||
| 920 | 2239 | nbrodin | int x = (int)(((long)adjustedWindow.getX() * (long)overviewWidth) / (long)width); |
| 921 | int y = (int) (((long)adjustedWindow.getY() * (long)overviewHeight) / (long)height); |
||
| 922 | return new Rectangle(x, y, nWidth, nHeight); |
||
| 923 | } |
||
| 924 | 488 | nbrodin | |
| 925 | /**
|
||
| 926 | * Lee una ventana de datos con resampleo a partir de coordenadas reales. Este m?todo lee la
|
||
| 927 | * ventana de una vez cargando los datos de un golpe en el buffer. Las coordenadas se solicitan
|
||
| 928 | * en coordenadas del mundo real por lo que estas pueden caer en cualquier parte de un pixel.
|
||
| 929 | * Esto se hace m?s evidente cuando supersampleamos en la petici?n, es decir el buffer de de
|
||
| 930 | * mayor tama?o que el n?mero de pixels solicitado.
|
||
| 931 | *
|
||
| 932 | * Para resolver esto escribiremos con la funci?n readRaster los datos sobre un buffer mayor
|
||
| 933 | * que el solicitado. Despu?s calcularemos el desplazamiento en pixels dentro de este buffer
|
||
| 934 | * de mayor tama?o hasta llegar a la coordenada real donde comienza la petici?n real que ha
|
||
| 935 | * hecho el usuario. Esto es as? porque cuando supersampleamos no queremos los pixeles del
|
||
| 936 | * raster de disco completos sino que en los bordes del buffer quedan cortados.
|
||
| 937 | *
|
||
| 938 | * @param buf Buffer donde se almacenan los datos
|
||
| 939 | * @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
||
| 940 | * @param dWorldTLX Posici?n X superior izquierda en coord reales
|
||
| 941 | * @param dWorldTLY Posici?n Y superior izquierda en coord reales
|
||
| 942 | * @param dWorldBRX Posici?n X inferior derecha en coord reales
|
||
| 943 | * @param dWorldBRY Posici?n Y inferior derecha en coord reales
|
||
| 944 | * @param nWidth Ancho en pixeles de la petici?n
|
||
| 945 | * @param nHeight Alto en pixeles de la petici?n
|
||
| 946 | * @param bufWidth Ancho del buffer
|
||
| 947 | * @param bufHeight Alto del buffer
|
||
| 948 | * @throws GdalException
|
||
| 949 | */
|
||
| 950 | public void readWindow(Buffer buf, BandList bandList, double ulx, double uly, double lrx, double lry, |
||
| 951 | 1054 | nbrodin | double nWidth, double nHeight, int bufWidth, int bufHeight, boolean adjustToExtent, TaskStatus status) throws GdalException, ProcessInterruptedException { |
| 952 | 488 | nbrodin | Extent petExtent = new ExtentImpl(ulx, uly, lrx, lry);
|
| 953 | setView(ulx, uly, lrx, lry, bufWidth, bufHeight); |
||
| 954 | Point2D ul = worldToRaster(new Point2D.Double(ulx, uly)); |
||
| 955 | Point2D lr = worldToRaster(new Point2D.Double(lrx, lry)); |
||
| 956 | ul.setLocation(ul.getX() < 0 ? 1 : ul.getX(), ul.getY() < 0 ? 1 : ul.getY()); |
||
| 957 | lr.setLocation(lr.getX() < 0 ? 1 : lr.getX(), lr.getY() < 0 ? 1 : lr.getY()); |
||
| 958 | ul.setLocation(ul.getX() - 0.5, ul.getY() - 0.5); |
||
| 959 | lr.setLocation(lr.getX() - 0.5, lr.getY() - 0.5); |
||
| 960 | |||
| 961 | adjustPoints(ul, lr); |
||
| 962 | |||
| 963 | if(gdalBands.length == 0) |
||
| 964 | return;
|
||
| 965 | |||
| 966 | selectGdalBands(/*buf.getBandCount()*/getRasterCount());
|
||
| 967 | |||
| 968 | 2239 | nbrodin | Rectangle requestWindow = new Rectangle( |
| 969 | (int) Math.min(ul.getX(), lr.getX()), |
||
| 970 | (int) Math.min(ul.getY(), lr.getY()), |
||
| 971 | (int)nWidth,
|
||
| 972 | (int)nHeight);
|
||
| 973 | 488 | nbrodin | |
| 974 | 2239 | nbrodin | requestWindow = getAdjustedWindowInOverviewCoordinates(requestWindow); |
| 975 | |||
| 976 | 488 | nbrodin | int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
| 977 | //Si el buffer no se ajusta al extent entonces calculamos en que posici?n comienza a escribirse dentro del buffer
|
||
| 978 | //ya que lo que cae fuera ser?n valores NoData
|
||
| 979 | if(!adjustToExtent){
|
||
| 980 | int[] wh = calcStepBuffer(petExtent, bufWidth, bufHeight, stpBuffer); |
||
| 981 | 2239 | nbrodin | if(requestWindow.getX() < 0) |
| 982 | requestWindow.setLocation(0, (int)requestWindow.getY()); |
||
| 983 | if(requestWindow.getY() < 0) |
||
| 984 | requestWindow.setLocation((int)requestWindow.getX(), 0); |
||
| 985 | stpBuffer[0] = (int)((stpBuffer[0] * bufWidth) / requestWindow.getWidth()); |
||
| 986 | stpBuffer[1] = (int)((stpBuffer[1] * bufHeight) / requestWindow.getHeight()); |
||
| 987 | stpBuffer[2] = (int)((stpBuffer[2] * bufWidth) / requestWindow.getWidth()); |
||
| 988 | stpBuffer[3] = (int)((stpBuffer[3] * bufHeight) / requestWindow.getHeight()); |
||
| 989 | 488 | nbrodin | bufWidth = (int)Math.abs(stpBuffer[2] - stpBuffer[0]); |
| 990 | bufHeight = (int)Math.abs(stpBuffer[3] - stpBuffer[1]); |
||
| 991 | 2239 | nbrodin | readDataCachedBuffer(buf, bandList, |
| 992 | new int[]{(int)requestWindow.getX(), (int)requestWindow.getY(), wh[0], wh[1]}, |
||
| 993 | bufWidth, bufHeight, 0, 0, stpBuffer, status); |
||
| 994 | 488 | nbrodin | return;
|
| 995 | } |
||
| 996 | |||
| 997 | 2239 | nbrodin | if ((requestWindow.getX() + requestWindow.getWidth()) > gdalBands[0].getRasterBandXSize()) |
| 998 | requestWindow.setSize((int)(gdalBands[0].getRasterBandXSize() - requestWindow.getX()), (int)requestWindow.getHeight()); |
||
| 999 | 488 | nbrodin | |
| 1000 | 2239 | nbrodin | if ((requestWindow.getY() + requestWindow.getHeight()) > gdalBands[0].getRasterBandYSize()) |
| 1001 | requestWindow.setSize((int)requestWindow.getWidth(), (int)(gdalBands[0].getRasterBandYSize() - requestWindow.getY())); |
||
| 1002 | 488 | nbrodin | |
| 1003 | 2239 | nbrodin | readDataCachedBuffer(buf, bandList, |
| 1004 | new int[]{(int)requestWindow.getX(), (int)requestWindow.getY(), (int)requestWindow.getWidth(), (int)requestWindow.getHeight()}, |
||
| 1005 | bufWidth, bufHeight, 0, 0, stpBuffer, status); |
||
| 1006 | 488 | nbrodin | } |
| 1007 | |||
| 1008 | private void adjustPoints(Point2D ul, Point2D lr) { |
||
| 1009 | double a = (ul.getX() - (int)ul.getX()); |
||
| 1010 | double b = (ul.getY() - (int)ul.getY()); |
||
| 1011 | ul.setLocation( (a > 0.95 || a < 0.05) ? Math.round(ul.getX()) : ul.getX(), |
||
| 1012 | (b > 0.95 || b < 0.05) ? Math.round(ul.getY()) : ul.getY()); |
||
| 1013 | lr.setLocation( (a > 0.95 || a < 0.05) ? Math.round(lr.getX()) : lr.getX(), |
||
| 1014 | (b > 0.95 || b < 0.05) ? Math.round(lr.getY()) : lr.getY()); |
||
| 1015 | } |
||
| 1016 | |||
| 1017 | /**
|
||
| 1018 | * Lee una ventana de datos con resampleo a partir de coordenadas en pixeles. Este m?todo lee la
|
||
| 1019 | * ventana de una vez cargando los datos de un golpe en el buffer.
|
||
| 1020 | * @param buf Buffer donde se almacenan los datos
|
||
| 1021 | * @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
||
| 1022 | * @param x Posici?n X en pixeles
|
||
| 1023 | * @param y Posici?n Y en pixeles
|
||
| 1024 | * @param w Ancho en pixeles
|
||
| 1025 | * @param h Alto en pixeles
|
||
| 1026 | * @param bufWidth Ancho del buffer
|
||
| 1027 | * @param bufHeight Alto del buffer
|
||
| 1028 | * @throws GdalException
|
||
| 1029 | */
|
||
| 1030 | 1054 | nbrodin | public void readWindow(Buffer buf, BandList bandList, int x, int y, int w, int h, TaskStatus status) throws GdalException, ProcessInterruptedException { |
| 1031 | 488 | nbrodin | gdalBands = new GdalRasterBand[getRasterCount()];
|
| 1032 | |||
| 1033 | 1043 | nbrodin | if(buf.getWidth() == w && buf.getHeight() == h)
|
| 1034 | isSupersampling = false;
|
||
| 1035 | |||
| 1036 | 488 | nbrodin | if(gdalBands.length == 0) |
| 1037 | return;
|
||
| 1038 | |||
| 1039 | // Selecciona las bandas
|
||
| 1040 | gdalBands[0] = getRasterBand(1); |
||
| 1041 | |||
| 1042 | for(int iBand = 1; iBand < gdalBands.length; iBand++) |
||
| 1043 | gdalBands[iBand] = getRasterBand(iBand + 1);
|
||
| 1044 | |||
| 1045 | assignDataTypeFromGdalRasterBands(gdalBands); |
||
| 1046 | |||
| 1047 | int[] stpBuffer = new int[]{0, 0 , buf.getWidth(), buf.getHeight()}; |
||
| 1048 | 1054 | nbrodin | readDataCachedBuffer(buf, bandList, new int[]{x, y, w, h}, buf.getWidth(), buf.getHeight(), 0, 0, stpBuffer, status); |
| 1049 | 488 | nbrodin | } |
| 1050 | |||
| 1051 | /**
|
||
| 1052 | * Asigna el tipo de datos de las bandas a partir de una lista de GdalRasterBands
|
||
| 1053 | * @param gdalBands
|
||
| 1054 | * @throws GdalException
|
||
| 1055 | */
|
||
| 1056 | private void assignDataTypeFromGdalRasterBands(GdalRasterBand[] gdalBands) throws GdalException { |
||
| 1057 | int[] dt = new int[gdalBands.length]; |
||
| 1058 | for (int i = 0; i < gdalBands.length; i++) { |
||
| 1059 | if(gdalBands[i] != null) |
||
| 1060 | dt[i] = gdalBands[i].getRasterDataType(); |
||
| 1061 | } |
||
| 1062 | setDataType(dt); |
||
| 1063 | } |
||
| 1064 | 1032 | nbrodin | |
| 1065 | /**
|
||
| 1066 | * Lee una ventana de datos. Esta funci?n es usuada por
|
||
| 1067 | * readWindow para coordenadas reales y readWindow en coordenadas pixel. Esta es una versi?n de readData pero
|
||
| 1068 | * comprueba si el buffer es cacheado y si lo es pide por trozos para no intentar cargar desde gdal demasiados
|
||
| 1069 | * datos.
|
||
| 1070 | * @param buf Buffer donde se almacenan los datos
|
||
| 1071 | * @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
||
| 1072 | * @param inputWindow
|
||
| 1073 | * <UL>
|
||
| 1074 | * <LI>inputWindow[0]:Posici?n X en pixeles de la imagen de entrada</LI>
|
||
| 1075 | * <LI>inputWindow[1]:Posici?n Y en pixeles de la imagen de entrada</LI>
|
||
| 1076 | * <LI>inputWindow[2]:Ancho en p?xeles a leer de la imagen de entrada</LI>
|
||
| 1077 | * <LI>inputWindow[3]:Alto en p?xeles a leer de la imagen de entrada</LI>
|
||
| 1078 | * </UL>
|
||
| 1079 | * @param bufWidth Ancho del buffer de la imagen de entrada. Si no coincide con inputWindow[2] el propio gdal resamplea
|
||
| 1080 | * @param bufHeight Alto del buffer de la imagen de entrada. Si no coincide con inputWindow[3] el propio gdal resamplea
|
||
| 1081 | * @param stepX Desplazamiento en p?xeles en X a partir de la posici?n x. Este desplazamiento es util cuando hay un
|
||
| 1082 | * supersampleo ya que puede ser que de los pixeles que est?n en el borde izquierdo de la petici?n solo queramos una
|
||
| 1083 | * parte de ellos.
|
||
| 1084 | * @param stepY Desplazamiento en p?xeles en Y a partir de la posici?n y. Este desplazamiento es util cuando hay un
|
||
| 1085 | * supersampleo ya que puede ser que de los p?xeles que est?n en el borde superior de la petici?n solo queramos una
|
||
| 1086 | * parte de ellos.
|
||
| 1087 | * @param stepBuffer El buffer puede empezar a escribirse a partir de un pixel determinado y acabar de escribir antes
|
||
| 1088 | * de fin de buffer. Este par?metro indica el desplazamiento desde el inicio del buffer y la posici?n final.
|
||
| 1089 | * <UL>
|
||
| 1090 | * <LI>stepBuffer[0]:Desplazamiento en X desde el inicio</LI>
|
||
| 1091 | * <LI>stepBuffer[1]:Desplazamiento en Y desde el inicio</LI>
|
||
| 1092 | * <LI>stepBuffer[2]:Posici?n X final m?s uno</LI>
|
||
| 1093 | * <LI>stepBuffer[3]:Posici?n Y final m?s uno</LI>
|
||
| 1094 | * </UL>
|
||
| 1095 | * @throws GdalException
|
||
| 1096 | */
|
||
| 1097 | private void readDataCachedBuffer(Buffer buf, |
||
| 1098 | BandList bandList, |
||
| 1099 | int[] inputWindow, |
||
| 1100 | int bufWidth,
|
||
| 1101 | int bufHeight,
|
||
| 1102 | int stpX,
|
||
| 1103 | int stpY,
|
||
| 1104 | 1054 | nbrodin | int[] stepBuffer, |
| 1105 | TaskStatus status) throws GdalException, ProcessInterruptedException {
|
||
| 1106 | 1032 | nbrodin | if(buf.isCached()) {
|
| 1107 | int nBlocks = (int)(buf.getHeight() / buf.getBlockHeight()); |
||
| 1108 | int lastblock = buf.getHeight() - (nBlocks * buf.getBlockHeight());
|
||
| 1109 | if(lastblock > 0) |
||
| 1110 | nBlocks ++; |
||
| 1111 | 1043 | nbrodin | int initYSrc = inputWindow[1]; |
| 1112 | 1678 | nbrodin | int stepYSrc = (buf.getBlockHeight() * inputWindow[3]) / buf.getHeight(); |
| 1113 | int lastBlockYSrc = (lastblock * inputWindow[3]) / buf.getHeight(); |
||
| 1114 | 1043 | nbrodin | int initYBuffer = 0; |
| 1115 | 1032 | nbrodin | for (int i = 0; i < nBlocks; i++) { |
| 1116 | if(lastblock > 0 && i == (nBlocks - 1)) { |
||
| 1117 | 1043 | nbrodin | int[] newStepBuffer = new int[]{0, initYBuffer, stepBuffer[2], initYBuffer + lastblock}; |
| 1118 | 1678 | nbrodin | int[] newWindow = new int[]{inputWindow[0], initYSrc, inputWindow[2], lastBlockYSrc}; |
| 1119 | 1032 | nbrodin | readData(buf, |
| 1120 | bandList, |
||
| 1121 | 1678 | nbrodin | newWindow, |
| 1122 | 1032 | nbrodin | bufWidth, lastblock, 0, 0, newStepBuffer); |
| 1123 | } else {
|
||
| 1124 | 1043 | nbrodin | int[] newStepBuffer = new int[]{0, initYBuffer, stepBuffer[2], initYBuffer + buf.getBlockHeight()}; |
| 1125 | 1678 | nbrodin | int[] newWindow = new int[]{inputWindow[0], initYSrc, inputWindow[2], stepYSrc}; |
| 1126 | 1032 | nbrodin | readData(buf, |
| 1127 | bandList, |
||
| 1128 | 1678 | nbrodin | newWindow, |
| 1129 | 1032 | nbrodin | bufWidth, buf.getBlockHeight(), 0, 0, newStepBuffer); |
| 1130 | 1678 | nbrodin | initYSrc += stepYSrc; |
| 1131 | 1043 | nbrodin | initYBuffer += buf.getBlockHeight(); |
| 1132 | 1032 | nbrodin | } |
| 1133 | } |
||
| 1134 | } else {
|
||
| 1135 | readData(buf, bandList, inputWindow, bufWidth, bufHeight, 0, 0, stepBuffer); |
||
| 1136 | } |
||
| 1137 | } |
||
| 1138 | 488 | nbrodin | |
| 1139 | /**
|
||
| 1140 | 1032 | nbrodin | * Lee una ventana de datos. Esta funci?n es usuada por
|
| 1141 | 488 | nbrodin | * readWindow para coordenadas reales y readWindow en coordenadas pixel.
|
| 1142 | * @param buf Buffer donde se almacenan los datos
|
||
| 1143 | * @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
||
| 1144 | 1032 | nbrodin | * @param inputWindow
|
| 1145 | * <UL>
|
||
| 1146 | * <LI>inputWindow[0]:Posici?n X en pixeles de la imagen de entrada</LI>
|
||
| 1147 | * <LI>inputWindow[1]:Posici?n Y en pixeles de la imagen de entrada</LI>
|
||
| 1148 | * <LI>inputWindow[2]:Ancho en p?xeles a leer de la imagen de entrada</LI>
|
||
| 1149 | * <LI>inputWindow[3]:Alto en p?xeles a leer de la imagen de entrada</LI>
|
||
| 1150 | * </UL>
|
||
| 1151 | * @param bufWidth Ancho del buffer de la imagen de entrada. Si no coincide con inputWindow[2] el propio gdal resamplea
|
||
| 1152 | * @param bufHeight Alto del buffer de la imagen de entrada. Si no coincide con inputWindow[3] el propio gdal resamplea
|
||
| 1153 | * @param stepX Desplazamiento en p?xeles en X a partir de la posici?n x. Este desplazamiento es util cuando hay un
|
||
| 1154 | * supersampleo ya que puede ser que de los pixeles que est?n en el borde izquierdo de la petici?n solo queramos una
|
||
| 1155 | 488 | nbrodin | * parte de ellos.
|
| 1156 | 1032 | nbrodin | * @param stepY Desplazamiento en p?xeles en Y a partir de la posici?n y. Este desplazamiento es util cuando hay un
|
| 1157 | * supersampleo ya que puede ser que de los p?xeles que est?n en el borde superior de la petici?n solo queramos una
|
||
| 1158 | 488 | nbrodin | * parte de ellos.
|
| 1159 | * @param stepBuffer El buffer puede empezar a escribirse a partir de un pixel determinado y acabar de escribir antes
|
||
| 1160 | 1032 | nbrodin | * de fin de buffer. Este par?metro indica el desplazamiento desde el inicio del buffer y la posici?n final.
|
| 1161 | 488 | nbrodin | * <UL>
|
| 1162 | * <LI>stepBuffer[0]:Desplazamiento en X desde el inicio</LI>
|
||
| 1163 | * <LI>stepBuffer[1]:Desplazamiento en Y desde el inicio</LI>
|
||
| 1164 | 1032 | nbrodin | * <LI>stepBuffer[2]:Posici?n X final m?s uno</LI>
|
| 1165 | * <LI>stepBuffer[3]:Posici?n Y final m?s uno</LI>
|
||
| 1166 | 488 | nbrodin | * </UL>
|
| 1167 | * @throws GdalException
|
||
| 1168 | */
|
||
| 1169 | 1032 | nbrodin | private void readData(Buffer buf, |
| 1170 | BandList bandList, |
||
| 1171 | int[] inputWindow, |
||
| 1172 | int bufWidth,
|
||
| 1173 | int bufHeight,
|
||
| 1174 | int stpX,
|
||
| 1175 | int stpY,
|
||
| 1176 | int[] stepBuffer) throws GdalException, ProcessInterruptedException { |
||
| 1177 | 488 | nbrodin | |
| 1178 | 1419 | nbrodin | RasterTask task = RasterTaskQueue.get(Thread.currentThread().getId() + ""); |
| 1179 | 620 | nbrodin | FileUtils fUtil = RasterLocator.getManager().getFileUtils(); |
| 1180 | |||
| 1181 | 488 | nbrodin | GdalBuffer gdalBuf = null;
|
| 1182 | for(int iBand = 0; iBand < gdalBands.length; iBand++) { |
||
| 1183 | 620 | nbrodin | int[] drawableBands = bandList.getBufferBandToDraw(fUtil.getFormatedRasterFileName(fileName), iBand); |
| 1184 | 488 | nbrodin | if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 1185 | continue;
|
||
| 1186 | int init = (int)((bufWidth * stpY) + stpX); //Pos inicial. Desplazamos stpX pixels hacia la derecha y bajamos stpY lineas |
||
| 1187 | int pos = init;
|
||
| 1188 | 1032 | nbrodin | gdalBuf = gdalBands[iBand].readRaster( inputWindow[0],
|
| 1189 | inputWindow[1],
|
||
| 1190 | inputWindow[2],
|
||
| 1191 | inputWindow[3],
|
||
| 1192 | bufWidth, |
||
| 1193 | bufHeight, |
||
| 1194 | dataType[iBand]); |
||
| 1195 | int lineInputWindow = 0; |
||
| 1196 | 937 | nbrodin | if(dataType[iBand] == Gdal.GDT_Byte) {
|
| 1197 | 2305 | nbrodin | for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1198 | 1032 | nbrodin | pos = (int)((bufWidth * (lineInputWindow - stepBuffer[0])) + init); |
| 1199 | 2305 | nbrodin | for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++) { |
| 1200 | 488 | nbrodin | for (int i = 0; i < drawableBands.length; i++) |
| 1201 | buf.setElem(line, col, drawableBands[i], gdalBuf.buffByte[pos]); |
||
| 1202 | pos ++; |
||
| 1203 | } |
||
| 1204 | 1032 | nbrodin | lineInputWindow ++; |
| 1205 | 488 | nbrodin | if(task.getEvent() != null) |
| 1206 | task.manageEvent(task.getEvent()); |
||
| 1207 | } |
||
| 1208 | 1054 | nbrodin | gdalBuf.buffByte = null;
|
| 1209 | 1015 | nbrodin | } else if((dataType[iBand] == Gdal.GDT_UInt16) || (dataType[iBand] == Gdal.GDT_Int16) || (dataType[iBand] == Gdal.GDT_CInt16)) { |
| 1210 | 488 | nbrodin | for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1211 | 1032 | nbrodin | pos = (int)((bufWidth * (lineInputWindow - stepBuffer[0])) + init); |
| 1212 | 488 | nbrodin | for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++) { |
| 1213 | for (int i = 0; i < drawableBands.length; i++) |
||
| 1214 | buf.setElem(line, col, drawableBands[i], gdalBuf.buffShort[pos]); |
||
| 1215 | pos ++; |
||
| 1216 | } |
||
| 1217 | 1032 | nbrodin | lineInputWindow ++; |
| 1218 | 488 | nbrodin | if(task.getEvent() != null) |
| 1219 | task.manageEvent(task.getEvent()); |
||
| 1220 | } |
||
| 1221 | 1054 | nbrodin | gdalBuf.buffShort = null;
|
| 1222 | 1015 | nbrodin | } else if((dataType[iBand] == Gdal.GDT_UInt32) || (dataType[iBand] == Gdal.GDT_Int32) || (dataType[iBand] == Gdal.GDT_CInt32)) { |
| 1223 | 488 | nbrodin | for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1224 | 1032 | nbrodin | pos = (int)((bufWidth * (lineInputWindow - stepBuffer[0])) + init); |
| 1225 | 488 | nbrodin | for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++) { |
| 1226 | for (int i = 0; i < drawableBands.length; i++) |
||
| 1227 | buf.setElem(line, col, drawableBands[i], gdalBuf.buffInt[pos]); |
||
| 1228 | pos ++; |
||
| 1229 | } |
||
| 1230 | 1032 | nbrodin | lineInputWindow ++; |
| 1231 | 488 | nbrodin | if(task.getEvent() != null) |
| 1232 | task.manageEvent(task.getEvent()); |
||
| 1233 | } |
||
| 1234 | 1054 | nbrodin | gdalBuf.buffInt = null;
|
| 1235 | 1015 | nbrodin | } else if(dataType[iBand] == Gdal.GDT_Float32) { |
| 1236 | 488 | nbrodin | for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1237 | 1032 | nbrodin | pos = (int)((bufWidth * (lineInputWindow - stepBuffer[0])) + init); |
| 1238 | 488 | nbrodin | for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++) { |
| 1239 | for (int i = 0; i < drawableBands.length; i++) |
||
| 1240 | buf.setElem(line, col, drawableBands[i], gdalBuf.buffFloat[pos]); |
||
| 1241 | pos ++; |
||
| 1242 | } |
||
| 1243 | 1032 | nbrodin | lineInputWindow ++; |
| 1244 | 488 | nbrodin | if(task.getEvent() != null) |
| 1245 | task.manageEvent(task.getEvent()); |
||
| 1246 | } |
||
| 1247 | 1054 | nbrodin | gdalBuf.buffFloat = null;
|
| 1248 | 1015 | nbrodin | } else if(dataType[iBand] == Gdal.GDT_Float64) { |
| 1249 | 488 | nbrodin | for (int line = stepBuffer[1]; line < stepBuffer[3]; line++) { |
| 1250 | 1032 | nbrodin | pos = (int)((bufWidth * (lineInputWindow - stepBuffer[0])) + init); |
| 1251 | 488 | nbrodin | for (int col = stepBuffer[0]; col < stepBuffer[2]; col ++) { |
| 1252 | for (int i = 0; i < drawableBands.length; i++) |
||
| 1253 | buf.setElem(line, col, drawableBands[i], gdalBuf.buffDouble[pos]); |
||
| 1254 | pos ++; |
||
| 1255 | } |
||
| 1256 | 1032 | nbrodin | lineInputWindow ++; |
| 1257 | 488 | nbrodin | if(task.getEvent() != null) |
| 1258 | task.manageEvent(task.getEvent()); |
||
| 1259 | } |
||
| 1260 | 1054 | nbrodin | gdalBuf.buffDouble = null;
|
| 1261 | 488 | nbrodin | } |
| 1262 | } |
||
| 1263 | } |
||
| 1264 | |||
| 1265 | /**
|
||
| 1266 | * Lee una ventana de datos sin resampleo a partir de coordenadas en pixeles. Esta funci?n es usuada por
|
||
| 1267 | * readWindow para coordenadas reales y readWindow en coordenadas pixel.
|
||
| 1268 | * @param buf Buffer donde se almacenan los datos
|
||
| 1269 | * @param bandList Lista de bandas que queremos leer y sobre que bandas del buffer de destino queremos escribirlas
|
||
| 1270 | * @param x Posici?n X en pixeles
|
||
| 1271 | * @param y Posici?n Y en pixeles
|
||
| 1272 | * @param w Ancho en pixeles
|
||
| 1273 | * @param yMax altura m?xima de y
|
||
| 1274 | * @throws GdalException
|
||
| 1275 | */
|
||
| 1276 | @SuppressWarnings("unused") |
||
| 1277 | private void readDataByLine(Buffer buf, BandList bandList, int x, int y, int w, int yMax) throws GdalException, ProcessInterruptedException { |
||
| 1278 | GdalBuffer gdalBuf = null;
|
||
| 1279 | int rasterBufLine;
|
||
| 1280 | 1419 | nbrodin | RasterTask task = RasterTaskQueue.get(Thread.currentThread().getId() + ""); |
| 1281 | 620 | nbrodin | FileUtils fUtil = RasterLocator.getManager().getFileUtils(); |
| 1282 | 488 | nbrodin | |
| 1283 | for(int iBand = 0; iBand < gdalBands.length; iBand++) { |
||
| 1284 | 620 | nbrodin | int[] drawableBands = bandList.getBufferBandToDraw(fUtil.getFormatedRasterFileName(fileName), iBand); |
| 1285 | 488 | nbrodin | if(drawableBands == null || (drawableBands.length == 1 && drawableBands[0] == -1)) |
| 1286 | continue;
|
||
| 1287 | if(dataType[iBand] == Gdal.GDT_Byte) {
|
||
| 1288 | for (int line = y; line < yMax; line++) { |
||
| 1289 | gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
||
| 1290 | rasterBufLine = line - y; |
||
| 1291 | for (int i = 0; i < drawableBands.length; i++) { |
||
| 1292 | buf.setLineInBandByte(gdalBuf.buffByte, rasterBufLine, drawableBands[i]); |
||
| 1293 | } |
||
| 1294 | if(task.getEvent() != null) |
||
| 1295 | task.manageEvent(task.getEvent()); |
||
| 1296 | } |
||
| 1297 | }else if((dataType[iBand] == Gdal.GDT_UInt16) || (dataType[iBand] == Gdal.GDT_Int16) || (dataType[iBand] == Gdal.GDT_CInt16)) { |
||
| 1298 | for (int line = y; line < yMax; line++) { |
||
| 1299 | gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
||
| 1300 | rasterBufLine = line - y; |
||
| 1301 | for (int i = 0; i < drawableBands.length; i++) { |
||
| 1302 | buf.setLineInBandShort(gdalBuf.buffShort, rasterBufLine, drawableBands[i]); |
||
| 1303 | } |
||
| 1304 | if(task.getEvent() != null) |
||
| 1305 | task.manageEvent(task.getEvent()); |
||
| 1306 | } |
||
| 1307 | }else if((dataType[iBand] == Gdal.GDT_UInt32) || (dataType[iBand] == Gdal.GDT_Int32) || (dataType[iBand] == Gdal.GDT_CInt32)) { |
||
| 1308 | for (int line = y; line < yMax; line++) { |
||
| 1309 | gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
||
| 1310 | rasterBufLine = line - y; |
||
| 1311 | for (int i = 0; i < drawableBands.length; i++) { |
||
| 1312 | buf.setLineInBandInt(gdalBuf.buffInt, rasterBufLine, drawableBands[i]); |
||
| 1313 | } |
||
| 1314 | if(task.getEvent() != null) |
||
| 1315 | task.manageEvent(task.getEvent()); |
||
| 1316 | } |
||
| 1317 | }else if(dataType[iBand] == Gdal.GDT_Float32){ |
||
| 1318 | for (int line = y; line < yMax; line++) { |
||
| 1319 | gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
||
| 1320 | rasterBufLine = line - y; |
||
| 1321 | for (int i = 0; i < drawableBands.length; i++) { |
||
| 1322 | buf.setLineInBandFloat(gdalBuf.buffFloat, rasterBufLine, drawableBands[i]); |
||
| 1323 | } |
||
| 1324 | if(task.getEvent() != null) |
||
| 1325 | task.manageEvent(task.getEvent()); |
||
| 1326 | } |
||
| 1327 | }else if(dataType[iBand] == Gdal.GDT_Float64){ |
||
| 1328 | for (int line = y; line < yMax; line++) { |
||
| 1329 | gdalBuf = gdalBands[iBand].readRaster(x, line, w, 1, w, 1, dataType[iBand]); |
||
| 1330 | rasterBufLine = line - y; |
||
| 1331 | for (int i = 0; i < drawableBands.length; i++) { |
||
| 1332 | buf.setLineInBandDouble(gdalBuf.buffDouble, rasterBufLine, drawableBands[i]); |
||
| 1333 | } |
||
| 1334 | if(task.getEvent() != null) |
||
| 1335 | task.manageEvent(task.getEvent()); |
||
| 1336 | } |
||
| 1337 | } |
||
| 1338 | } |
||
| 1339 | } |
||
| 1340 | |||
| 1341 | /**
|
||
| 1342 | * Obtiene el valor de un pixel determinado por las coordenadas x e y que se pasan
|
||
| 1343 | * por par?metro
|
||
| 1344 | * @param x Coordenada X del pixel
|
||
| 1345 | * @param y Coordenada Y del pixel
|
||
| 1346 | * @return Array de Object donde cada posici?n representa una banda y el valor ser? Integer
|
||
| 1347 | * en caso de ser byte, shot o int, Float en caso de ser float y Double en caso de ser double.
|
||
| 1348 | */
|
||
| 1349 | public Object[] getData(int x, int y) { |
||
| 1350 | try {
|
||
| 1351 | Object[] data = new Object[getRasterCount()]; |
||
| 1352 | for(int i = 0; i < getRasterCount(); i++){ |
||
| 1353 | GdalRasterBand rb = getRasterBand(i + 1);
|
||
| 1354 | GdalBuffer r = rb.readRaster(x, y, 1, 1, 1, 1, dataType[i]); |
||
| 1355 | switch(dataType[i]){
|
||
| 1356 | case 0: break; //Sin tipo |
||
| 1357 | case 1: data[i] = new Integer(r.buffByte[0]); //Buffer byte (8) |
||
| 1358 | break;
|
||
| 1359 | case 2: //Buffer short (16) |
||
| 1360 | case 3: data[i] = new Integer(r.buffShort[0]); //Buffer short (16) |
||
| 1361 | break;
|
||
| 1362 | case 4: //Buffer int (32) |
||
| 1363 | case 5: data[i] = new Integer(r.buffInt[0]); //Buffer int (32) |
||
| 1364 | break;
|
||
| 1365 | case 6: data[i] = new Float(r.buffFloat[0]); //Buffer float (32) |
||
| 1366 | break;
|
||
| 1367 | case 7: data[i] = new Double(r.buffDouble[0]); //Buffer double (64) |
||
| 1368 | break;
|
||
| 1369 | } |
||
| 1370 | } |
||
| 1371 | return data;
|
||
| 1372 | } catch (GdalException e) {
|
||
| 1373 | return null; |
||
| 1374 | } |
||
| 1375 | } |
||
| 1376 | |||
| 1377 | public int getBlockSize(){ |
||
| 1378 | return this.getBlockSize(); |
||
| 1379 | } |
||
| 1380 | |||
| 1381 | /**
|
||
| 1382 | * Devuelve la transformaci?n del fichero de georreferenciaci?n
|
||
| 1383 | * @return AffineTransform
|
||
| 1384 | */
|
||
| 1385 | public AffineTransform getOwnTransformation() { |
||
| 1386 | return ownTransformation;
|
||
| 1387 | } |
||
| 1388 | |||
| 1389 | /**
|
||
| 1390 | * Calcula el extent en coordenadas del mundo real sin rotaci?n. Solo coordenadas y tama?o de pixel
|
||
| 1391 | * @return Extent
|
||
| 1392 | */
|
||
| 1393 | public Extent getExtentWithoutRot() {
|
||
| 1394 | AffineTransform at = new AffineTransform( externalTransformation.getScaleX(), 0, |
||
| 1395 | 0, externalTransformation.getScaleY(),
|
||
| 1396 | externalTransformation.getTranslateX(), externalTransformation.getTranslateY()); |
||
| 1397 | Point2D p1 = new Point2D.Double(0, 0); |
||
| 1398 | Point2D p2 = new Point2D.Double(width, height); |
||
| 1399 | at.transform(p1, p1); |
||
| 1400 | at.transform(p2, p2); |
||
| 1401 | return new ExtentImpl(p1, p2); |
||
| 1402 | } |
||
| 1403 | |||
| 1404 | /**
|
||
| 1405 | * Asigna una transformaci?n que es aplicada sobre la que ya tiene el propio fichero
|
||
| 1406 | * @param t
|
||
| 1407 | */
|
||
| 1408 | public void setExternalTransform(AffineTransform t){ |
||
| 1409 | externalTransformation = t; |
||
| 1410 | } |
||
| 1411 | |||
| 1412 | /**
|
||
| 1413 | * Obtiene el nombre del driver de Gdal
|
||
| 1414 | * @return Cadena que representa el nombre del driver de gdal
|
||
| 1415 | */
|
||
| 1416 | public String getGdalShortName() { |
||
| 1417 | return shortName;
|
||
| 1418 | } |
||
| 1419 | 1054 | nbrodin | |
| 1420 | public void dispose() { |
||
| 1421 | open = false;
|
||
| 1422 | try {
|
||
| 1423 | super.close();
|
||
| 1424 | } catch (GdalException e1) {
|
||
| 1425 | } |
||
| 1426 | try {
|
||
| 1427 | finalize(); |
||
| 1428 | } catch (Throwable e) { |
||
| 1429 | } |
||
| 1430 | } |
||
| 1431 | |||
| 1432 | protected void finalize() throws Throwable { |
||
| 1433 | fileTransparency = null;
|
||
| 1434 | palette = null;
|
||
| 1435 | colorInterpr = null;
|
||
| 1436 | ownTransformation = null;
|
||
| 1437 | externalTransformation = null;
|
||
| 1438 | stepArrayX = null;
|
||
| 1439 | stepArrayY = null;
|
||
| 1440 | fileName = null;
|
||
| 1441 | shortName = null;
|
||
| 1442 | trans = null;
|
||
| 1443 | version = null;
|
||
| 1444 | dataType = null;
|
||
| 1445 | metadata = null;
|
||
| 1446 | 488 | nbrodin | |
| 1447 | 1054 | nbrodin | if(gdalBands != null) { |
| 1448 | for (int i = 0; i < gdalBands.length; i++) { |
||
| 1449 | gdalBands[i] = null;
|
||
| 1450 | } |
||
| 1451 | gdalBands = null;
|
||
| 1452 | } |
||
| 1453 | super.finalize();
|
||
| 1454 | } |
||
| 1455 | |||
| 1456 | 488 | nbrodin | } |
| 1457 | |||
| 1458 | |||
| 1459 |