svn-gvsig-desktop / tags / v1_2_Build_1205 / libraries / libjni-gdal / src-test / Writetif.java @ 46145
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1 | 716 | igbrotru | /**********************************************************************
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2 | 1188 | igbrotru | * $Id$
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3 | *
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4 | * Name: writetif.java
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5 | * Project: gvSIG - Generalitat Valenciana SIG
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6 | * Purpose: Escribe una im?gen en formato geotiff a partir de otra en
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7 | * otro formato. Los par?metros necesarios son im?gen fuente, ancho
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8 | * y alto de la escena a convertir.
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9 | * java Writetif imagen_src.sid 2000 1500
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10 | * Author: Nacho Brodin, brodin_ign@gva.es
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11 | *
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12 | **********************************************************************/
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13 | 2210 | igbrotru | /* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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14 | *
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15 | * Copyright (C) 2004 IVER T.I. and Generalitat Valenciana.
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16 | *
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17 | * This program is free software; you can redistribute it and/or
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18 | * modify it under the terms of the GNU General Public License
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19 | * as published by the Free Software Foundation; either version 2
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20 | * of the License, or (at your option) any later version.
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21 | *
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22 | * This program is distributed in the hope that it will be useful,
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23 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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24 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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25 | * GNU General Public License for more details.
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26 | *
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27 | * You should have received a copy of the GNU General Public License
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28 | * along with this program; if not, write to the Free Software
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29 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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30 | *
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31 | * For more information, contact:
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32 | *
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33 | * Generalitat Valenciana
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34 | * Conselleria d'Infraestructures i Transport
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35 | * Av. Blasco Ib??ez, 50
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36 | * 46010 VALENCIA
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37 | * SPAIN
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38 | *
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39 | * +34 963862235
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40 | * gvsig@gva.es
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41 | * www.gvsig.gva.es
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42 | *
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43 | * or
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44 | *
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45 | * IVER T.I. S.A
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46 | * Salamanca 50
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47 | * 46005 Valencia
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48 | * Spain
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49 | *
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50 | * +34 963163400
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51 | * dac@iver.es
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52 | 1188 | igbrotru | */
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53 | |||
54 | 804 | igbrotru | import es.gva.cit.jgdal.*; |
55 | 920 | igbrotru | import es.gva.cit.jogr.*; |
56 | 716 | igbrotru | |
57 | public class Writetif{ |
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58 | public static void main(String[] args){ |
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59 | |||
60 | |||
61 | Gdal migdal=new Gdal();
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62 | Gdal dset_dstno=null;
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63 | GeoTransform gt=null;
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64 | int ancho=0,alto=0; |
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65 | GdalRasterBand mirasterband=null;
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66 | GdalRasterBand rband=null;
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67 | int nxsize=0; |
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68 | int nysize=0; |
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69 | int rastercount=0; |
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70 | float total=0; |
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71 | |||
72 | |||
73 | try{
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74 | if(args.length==3){ |
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75 | migdal.open(args[0],Gdal.GA_ReadOnly);
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76 | ancho=Integer.parseInt(args[1]); |
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77 | alto=Integer.parseInt(args[2]); |
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78 | }else {
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79 | System.out.println("Params: filename Xsize Ysize"); |
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80 | System.exit(1); |
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81 | } |
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82 | }catch(Exception ge){ |
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83 | ge.printStackTrace(); |
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84 | //...
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85 | } |
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86 | |||
87 | try{
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88 | gt=migdal.getGeoTransform(); |
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89 | System.out.println("Origin = ("+gt.adfgeotransform[0]+","+gt.adfgeotransform[3]+")"); |
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90 | System.out.println("Pixel Size = ("+gt.adfgeotransform[1]+","+gt.adfgeotransform[5]+")"); |
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91 | }catch(GdalException e){
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92 | System.out.println("I can't obtain the array geoTransform for this image"); |
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93 | e.printStackTrace(); |
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94 | //...........
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95 | } |
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96 | |||
97 | try{
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98 | rastercount=migdal.getRasterCount(); |
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99 | nxsize = migdal.getRasterXSize(); |
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100 | nysize = migdal.getRasterYSize(); |
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101 | System.out.println("N BANDAS="+rastercount+" SIZEX="+nxsize+" SIZEY="+nysize); |
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102 | System.out.println("WINDOWX="+ancho+" WINDOWY="+alto); |
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103 | System.out.println(migdal.getProjectionRef());
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104 | |||
105 | |||
106 | int ngcp=migdal.getGCPCount();
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107 | System.out.println("NGCP="+ngcp); |
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108 | |||
109 | }catch(GdalException ge){
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110 | ge.printStackTrace(); |
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111 | //...
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112 | } |
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113 | |||
114 | |||
115 | |||
116 | |||
117 | try{
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118 | //Obtenemos el driver y creamos el dataset del destino
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119 | |||
120 | GdalDriver drv=Gdal.getDriverByName("GTiff");
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121 | String[] params={"TILED=YES","PHOTOMETRIC=RGB","TFW=WORLDFILE"}; |
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122 | dset_dstno=drv.create("salidatif.tif",ancho,alto,rastercount,Gdal.GDT_Byte,null); |
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123 | |||
124 | //A?adimos la informaci?n de proyecci?n (esta es de ejemplo. Hay que formatear la de la im?gen de entrada)
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125 | |||
126 | OGRSpatialReference oSRS=new OGRSpatialReference();
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127 | oSRS.setUTM(11,true); |
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128 | oSRS.setWellKnownGeogCS("NAD27");
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129 | System.out.println("Nueva Proyecci?n ==> "+oSRS.exportToWkt()); |
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130 | dset_dstno.setProjection(oSRS.exportToWkt()); |
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131 | |||
132 | 734 | igbrotru | |
133 | 716 | igbrotru | //A?adimos el vector geoTransform de la imag?n fuente a la de destino
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134 | |||
135 | dset_dstno.setGeoTransform(gt); |
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136 | |||
137 | 908 | igbrotru | GdalBuffer buf=null;
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138 | 716 | igbrotru | for(int iBand=0;iBand<rastercount;iBand++){ |
139 | |||
140 | System.out.println("Lectura/Escritura banda..."+iBand); |
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141 | mirasterband=migdal.getRasterBand(iBand+1);
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142 | |||
143 | rband=dset_dstno.getRasterBand(iBand+1);
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144 | |||
145 | buf = mirasterband.readRaster(0, 0, ancho, alto, ancho, alto, Gdal.GDT_Byte); |
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146 | |||
147 | long inicio=System.currentTimeMillis(); |
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148 | rband.writeRaster(0,0, ancho, alto, buf,Gdal.GDT_Byte); |
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149 | long fin=System.currentTimeMillis(); |
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150 | total+=(fin-inicio); |
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151 | |||
152 | } |
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153 | |||
154 | System.out.println("TIEMPO DE ESCRITURA ="+(total/1000)); |
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155 | dset_dstno.close(); |
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156 | migdal.close(); |
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157 | 734 | igbrotru | oSRS=null;
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158 | 716 | igbrotru | |
159 | }catch(Exception e){ |
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160 | e.printStackTrace( ); |
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161 | //...
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162 | } |
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163 | |||
164 | |||
165 | } |
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166 | } |