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