svn-gvsig-desktop / trunk / libraries / libjni-gdal / src / gdal_interfaz.c @ 834
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1 | 716 | igbrotru | /**********************************************************************
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2 | * $Id$
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3 | *
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4 | * Name: gdal_interfaz.c
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5 | * Project: JGDAL. Interface java to gdal (Frank Warmerdam).
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6 | * Purpose: dataset's Basic Funcions.
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7 | * Author: Nacho Brodin, brodin_ign@gva.es
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8 | *
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9 | **********************************************************************/
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10 | /*Copyright (C) 2004 Nacho Brodin <brodin_ign@gva.es>
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11 | |||
12 | This program is free software; you can redistribute it and/or
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13 | modify it under the terms of the GNU General Public License
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14 | as published by the Free Software Foundation; either version 2
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15 | of the License, or (at your option) any later version.
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16 | |||
17 | This program is distributed in the hope that it will be useful,
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18 | but WITHOUT ANY WARRANTY; without even the implied warranty of
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19 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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20 | GNU General Public License for more details.
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21 | |||
22 | You should have received a copy of the GNU General Public License
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23 | along with this program; if not, write to the Free Software
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24 | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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25 | */
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26 | |||
27 | |||
28 | #include <jni.h> |
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29 | 791 | igbrotru | #include "es_gva_cit_jgdal_Gdal.h" |
30 | #include "es_gva_cit_jgdal_JNIBase.h" |
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31 | 716 | igbrotru | #include "gdal.h" |
32 | #include "cpl_string.h" |
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33 | |||
34 | |||
35 | |||
36 | /******************************************************************************/
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37 | // Open
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38 | /******************************************************************************/
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39 | |||
40 | |||
41 | 791 | igbrotru | JNIEXPORT jlong JNICALL Java_es_gva_cit_jgdal_Gdal_openNat |
42 | 716 | igbrotru | (JNIEnv *env, jobject obj, jstring pszF, jint acc){ |
43 | |||
44 | const char *pszFilename; |
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45 | GDALDatasetH *dataset; |
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46 | jlong jresult = 0 ;
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47 | FILE *fich; |
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48 | |||
49 | pszFilename = (*env)->GetStringUTFChars(env, pszF, 0);
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50 | |||
51 | fich=fopen( pszFilename, "r" );
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52 | if( fich )
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53 | fclose(fich); |
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54 | else
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55 | { |
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56 | fclose(fich); |
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57 | return -1; |
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58 | } |
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59 | |||
60 | GDALAllRegister(); |
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61 | dataset = GDALOpen((char *)pszFilename,(int)acc); |
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62 | |||
63 | *(GDALDatasetH **)&jresult = dataset; |
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64 | |||
65 | (*env)->ReleaseStringUTFChars(env, pszF, pszFilename); |
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66 | |||
67 | |||
68 | if(dataset==NULL)return -1; |
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69 | else return jresult; |
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70 | |||
71 | } |
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72 | |||
73 | |||
74 | /******************************************************************************/
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75 | // GetRasterXSize
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76 | /******************************************************************************/
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77 | |||
78 | |||
79 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_JNIBase_getRasterXSizeNat |
80 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr){ |
81 | |||
82 | int res=-1; |
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83 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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84 | |||
85 | dt = *(GDALDatasetH **)&cPtr; |
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86 | if(dt!=NULL) |
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87 | res = GDALGetRasterXSize(dt); |
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88 | |||
89 | |||
90 | return res;
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91 | |||
92 | } |
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93 | |||
94 | |||
95 | /******************************************************************************/
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96 | // GetRasterYSize
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97 | /******************************************************************************/
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98 | |||
99 | |||
100 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_JNIBase_getRasterYSizeNat |
101 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr){ |
102 | |||
103 | int res=-1; |
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104 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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105 | |||
106 | dt = *(GDALDatasetH **)&cPtr; |
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107 | if(dt!=NULL) |
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108 | res = GDALGetRasterYSize(dt); |
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109 | |||
110 | |||
111 | return res;
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112 | |||
113 | } |
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114 | |||
115 | /******************************************************************************/
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116 | // GetRasterCount
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117 | /******************************************************************************/
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118 | |||
119 | |||
120 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_JNIBase_getRasterCountNat |
121 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr){ |
122 | |||
123 | int res=-1; |
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124 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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125 | |||
126 | dt = *(GDALDatasetH **)&cPtr; |
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127 | if(dt!=NULL) |
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128 | res = GDALGetRasterCount(dt); |
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129 | |||
130 | |||
131 | return res;
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132 | } |
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133 | |||
134 | |||
135 | /******************************************************************************/
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136 | // GetMetadata
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137 | /******************************************************************************/
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138 | |||
139 | |||
140 | 791 | igbrotru | JNIEXPORT jobjectArray JNICALL Java_es_gva_cit_jgdal_Gdal_getMetadataNat |
141 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr, jstring pszDomain){ |
142 | |||
143 | char **papszMetadata;
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144 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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145 | int i,nmetadatos;
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146 | |||
147 | jclass class_string; |
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148 | jobjectArray vector_str; |
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149 | |||
150 | //Obtenemos los metadatos sobre papszMetadata
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151 | |||
152 | dt = *(GDALDatasetH **)&cPtr; |
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153 | |||
154 | |||
155 | if(dt!=NULL){ |
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156 | papszMetadata = GDALGetMetadata( dt, NULL );
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157 | |||
158 | |||
159 | //Si hay metadatos devolvemos creamos el vector de String de java y los devolvemos
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160 | |||
161 | nmetadatos = CSLCount(papszMetadata); |
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162 | if( nmetadatos > 0 ) |
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163 | { |
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164 | class_string = (*env)->FindClass (env, "java/lang/String");
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165 | vector_str=(*env)->NewObjectArray(env, nmetadatos, class_string, (*env)->NewStringUTF(env,""));
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166 | |||
167 | //Cargamos los metadatos
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168 | |||
169 | for( i = 0; papszMetadata[i] != NULL; i++ ) |
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170 | (*env)->SetObjectArrayElement(env,vector_str,i,(*env)->NewStringUTF(env,papszMetadata[i])); |
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171 | |||
172 | return vector_str;
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173 | } |
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174 | } |
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175 | |||
176 | return NULL; |
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177 | } |
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178 | |||
179 | |||
180 | |||
181 | |||
182 | |||
183 | /******************************************************************************/
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184 | // GetRasterBand
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185 | /******************************************************************************/
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186 | |||
187 | |||
188 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_Gdal_getRasterBandNat |
189 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr, jint hBand){ |
190 | |||
191 | |||
192 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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193 | GDALRasterBandH *rasterband=NULL;
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194 | jlong jresult = 0;
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195 | |||
196 | dt = *(GDALDatasetH **)&cPtr; |
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197 | |||
198 | if(dt!=NULL){ |
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199 | rasterband = GDALGetRasterBand(dt,(int)hBand);
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200 | *(GDALDatasetH **)&jresult = rasterband; |
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201 | }else return -1; |
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202 | |||
203 | return jresult;
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204 | |||
205 | } |
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206 | |||
207 | |||
208 | /******************************************************************************/
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209 | // GetGeoTransform
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210 | /******************************************************************************/
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211 | |||
212 | |||
213 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_Gdal_getGeoTransformNat |
214 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr, jobject gt){ |
215 | |||
216 | jclass class_geotransform; |
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217 | jfieldID id_campo; |
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218 | double adfgt[6]; |
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219 | jdoubleArray doublearray; |
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220 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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221 | |||
222 | |||
223 | dt = *(GDALDatasetH **)&cPtr; |
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224 | |||
225 | if(dt!=NULL){ |
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226 | |||
227 | //Obtenemos el objeto java que contendr? el vector geotransform
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228 | |||
229 | |||
230 | class_geotransform = (*env)->GetObjectClass(env, gt); |
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231 | id_campo = (*env)->GetFieldID(env, class_geotransform, "adfgeotransform", "[D"); |
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232 | |||
233 | |||
234 | //Cargamos el buffer llamando a GDALRasterIO
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235 | |||
236 | |||
237 | if(GDALGetGeoTransform(dt,adfgt)==CE_None){
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238 | doublearray = (*env)->NewDoubleArray(env,6);
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239 | if(doublearray!=NULL){ |
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240 | (*env)->SetDoubleArrayRegion(env, doublearray, 0, 6,(jdouble *)adfgt); |
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241 | (*env)->SetObjectField(env, gt, id_campo, doublearray); |
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242 | } |
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243 | }else return -1; |
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244 | |||
245 | }else return -1; |
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246 | |||
247 | return 0; |
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248 | |||
249 | } |
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250 | |||
251 | /******************************************************************************/
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252 | // setGeoTransformNat
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253 | /******************************************************************************/
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254 | |||
255 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_Gdal_setGeoTransformNat |
256 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr, jobject gt){ |
257 | |||
258 | jclass class_geotransform; |
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259 | jfieldID id_campo; |
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260 | double adfgt[6]; |
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261 | jdoubleArray doublearray; |
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262 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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263 | |||
264 | dt = *(GDALDatasetH **)&cPtr; |
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265 | |||
266 | if(dt!=NULL){ |
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267 | |||
268 | //Obtenemos los valores pasados en el vector gt
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269 | |||
270 | class_geotransform = (*env)->GetObjectClass(env, gt); |
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271 | id_campo = (*env)->GetFieldID(env, class_geotransform, "adfgeotransform", "[D"); |
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272 | doublearray =(jdoubleArray)(*env)->GetObjectField(env, gt, id_campo); |
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273 | (*env)->GetDoubleArrayRegion(env,doublearray,0,6,(jdouble *)adfgt); |
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274 | |||
275 | GDALSetGeoTransform( dt, adfgt ); |
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276 | return 0; |
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277 | } |
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278 | return -1; |
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279 | |||
280 | } |
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281 | |||
282 | /******************************************************************************/
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283 | // GetProjectionRef
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284 | /******************************************************************************/
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285 | |||
286 | |||
287 | 791 | igbrotru | JNIEXPORT jstring JNICALL Java_es_gva_cit_jgdal_Gdal_getProjectionRefNat |
288 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr){ |
289 | |||
290 | char *pszProjection=NULL; |
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291 | jstring pszP=NULL;
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292 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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293 | |||
294 | |||
295 | dt = *(GDALDatasetH **)&cPtr; |
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296 | |||
297 | //Llamamos a la funci?n y cargamos el jstring con el resultado
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298 | |||
299 | if(dt!=NULL){ |
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300 | pszProjection = (char *) GDALGetProjectionRef(dt);
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301 | if(pszProjection!=NULL) |
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302 | pszP = (*env)->NewStringUTF(env, pszProjection); |
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303 | } |
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304 | |||
305 | return pszP;
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306 | |||
307 | } |
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308 | |||
309 | /******************************************************************************/
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310 | // setProjection
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311 | /******************************************************************************/
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312 | |||
313 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_Gdal_setProjectionNat |
314 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr, jstring proj){ |
315 | |||
316 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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317 | |||
318 | dt = *(GDALDatasetH **)&cPtr; |
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319 | if(dt!=NULL){ |
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320 | const char *projeccion = (*env)->GetStringUTFChars(env, proj, 0); |
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321 | GDALSetProjection( dt, projeccion ); |
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322 | (*env)->ReleaseStringUTFChars(env, proj, projeccion); |
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323 | return 1; |
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324 | } |
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325 | |||
326 | return -1; |
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327 | } |
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328 | |||
329 | |||
330 | /******************************************************************************/
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331 | // Close
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332 | /******************************************************************************/
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333 | |||
334 | |||
335 | 791 | igbrotru | JNIEXPORT void JNICALL Java_es_gva_cit_jgdal_Gdal_closeNat
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336 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr){ |
337 | |||
338 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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339 | |||
340 | dt = *(GDALDatasetH **)&cPtr; |
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341 | GDALClose(dt); |
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342 | |||
343 | } |
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344 | |||
345 | |||
346 | /************************************************************************/
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347 | /* GDALGetDriverByName() */
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348 | /************************************************************************/
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349 | |||
350 | 791 | igbrotru | JNIEXPORT jlong JNICALL Java_es_gva_cit_jgdal_Gdal_getDriverByNameNat |
351 | 716 | igbrotru | (JNIEnv *env, jclass clase, jstring name){ |
352 | |||
353 | const char *namedrv; |
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354 | GDALDriverH *drv; |
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355 | |||
356 | jlong jresult=-1;
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357 | |||
358 | 834 | igbrotru | if(GDALGetDriverCount()<=0)GDALAllRegister(); |
359 | |||
360 | 716 | igbrotru | namedrv = (*env)->GetStringUTFChars(env, name, 0);
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361 | |||
362 | drv=GDALGetDriverByName(namedrv); |
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363 | |||
364 | *(GDALDriverH **)&jresult = drv; |
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365 | |||
366 | (*env)->ReleaseStringUTFChars(env, name, namedrv); |
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367 | |||
368 | return (long)jresult; |
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369 | } |
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370 | |||
371 | |||
372 | /************************************************************************/
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373 | /* getGCPCountNat() */
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374 | /************************************************************************/
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375 | |||
376 | 791 | igbrotru | JNIEXPORT jint JNICALL Java_es_gva_cit_jgdal_JNIBase_getGCPCountNat |
377 | 716 | igbrotru | (JNIEnv *env, jobject obj, jlong cPtr){ |
378 | |||
379 | int res=-1; |
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380 | GDALDatasetH *dt = (GDALDatasetH *) 0 ;
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381 | |||
382 | dt = *(GDALDatasetH **)&cPtr; |
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383 | if(dt!=NULL) |
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384 | res = GDALGetGCPCount(dt); |
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385 | |||
386 | |||
387 | return res;
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388 | } |
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389 | |||
390 |