root / trunk / libraries / libCresques / src / org / cresques / io / EcwFile.java @ 13173
History | View | Annotate | Download (37.5 KB)
| 1 |
/*
|
|---|---|
| 2 |
* Cresques Mapping Suite. Graphic Library for constructing mapping applications.
|
| 3 |
*
|
| 4 |
* Copyright (C) 2004-5.
|
| 5 |
*
|
| 6 |
* This program is free software; you can redistribute it and/or
|
| 7 |
* modify it under the terms of the GNU General Public License
|
| 8 |
* as published by the Free Software Foundation; either version 2
|
| 9 |
* of the License, or (at your option) any later version.
|
| 10 |
*
|
| 11 |
* This program is distributed in the hope that it will be useful,
|
| 12 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 13 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 14 |
* GNU General Public License for more details.
|
| 15 |
*
|
| 16 |
* You should have received a copy of the GNU General Public License
|
| 17 |
* along with this program; if not, write to the Free Software
|
| 18 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 19 |
*
|
| 20 |
* For more information, contact:
|
| 21 |
*
|
| 22 |
* cresques@gmail.com
|
| 23 |
*/
|
| 24 |
package org.cresques.io; |
| 25 |
|
| 26 |
import java.awt.Dimension; |
| 27 |
import java.awt.Image; |
| 28 |
import java.awt.Point; |
| 29 |
import java.awt.image.BufferedImage; |
| 30 |
import java.awt.image.PixelGrabber; |
| 31 |
import java.io.File; |
| 32 |
|
| 33 |
import org.cresques.cts.ICoordTrans; |
| 34 |
import org.cresques.cts.IProjection; |
| 35 |
import org.cresques.px.Extent; |
| 36 |
|
| 37 |
import com.ermapper.ecw.JNCSFile; |
| 38 |
import com.ermapper.ecw.JNCSFileNotOpenException; |
| 39 |
import com.ermapper.ecw.JNCSInvalidSetViewException; |
| 40 |
import com.ermapper.ecw.JNCSProgressiveUpdate; |
| 41 |
import com.ermapper.util.JNCSDatasetPoint; |
| 42 |
import com.ermapper.util.JNCSWorldPoint; |
| 43 |
|
| 44 |
|
| 45 |
/**
|
| 46 |
* Soporte para los ficheros .ecw de ErMapper.
|
| 47 |
* <br>
|
| 48 |
* NOTA: El SDK que ermapper ha puesto a disposici?n del p?blico en java
|
| 49 |
* es una versi?n 2.45, de 19/11/2001. Est? implementada usando JNI que
|
| 50 |
* se apoya en tres librer?as din?micas (dll), y presenta deficiencias
|
| 51 |
* muy graves a la hora de acceder a la informaci?n. Hasta el momento
|
| 52 |
* hemos detectado 3 de ellas:<BR>
|
| 53 |
* 1?.- No soporta ampliaciones superiores a 1:1. si se intenta acceder
|
| 54 |
* a un ecw con un zoom mayor da una excepci?n del tipo
|
| 55 |
* com.ermapper.ecw.JNCSInvalidSetViewException, que de no ser tenida encuenta
|
| 56 |
* acaba tirando abajo la m?quina virtual de java.<BR>
|
| 57 |
* 2?.- La longitud m?xima de l?nea que adminte el m?todo readLineRGBA es
|
| 58 |
* de unos 2500 pixeles, lo que hace el uso para la impresi?n en formatos
|
| 59 |
* superiorea a A4 a 300 ppp o m?s inviable.<BR>
|
| 60 |
* 3?.- La actualizaci?n progresiva usando el interface JNCSProgressiveUpdate
|
| 61 |
* con el JNCSFile hace que el equipo genere un error severo y se apague. Este
|
| 62 |
* error imposibilita esta t?cnica de acceso a ECW.<BR>
|
| 63 |
* <br>
|
| 64 |
* Para saltarnos la limitaci?n del bug#1 pedimos la ventana correspondiente al zoom 1:1 para
|
| 65 |
* el view que nos han puesto, y la resizeamos al tama?o que nos pide el usuario.<br>
|
| 66 |
* Como consecuencia del bug#2, para tama?os de ventana muy grandes (los necesarios
|
| 67 |
* para imprimir a m?s de A4 a 300DPI), hay que hacer varias llamadas al fichero con
|
| 68 |
* varios marcos contiguos, y los devolvemos 'pegados' en una sola imagen (esto se
|
| 69 |
* realiza de manera transparente para el usuario dentro de la llamada a updateImage.<br>
|
| 70 |
*
|
| 71 |
* @author "Luis W. Sevilla" <sevilla_lui@gva.es>
|
| 72 |
*/
|
| 73 |
public class EcwFile extends GeoRasterFile implements JNCSProgressiveUpdate { |
| 74 |
//Lleva la cuenta del n?mero de actualizaciones que se hace de una imagen que corresponde con el
|
| 75 |
//n?mero de bandas que tiene. Esto es necesario ya que si una imagen tiene el mustResize a
|
| 76 |
//true solo debe llamar a la funci?n resizeImage al actualizar la ?ltima banda, sino al hacer
|
| 77 |
//un zoom menor que 1:1 se veria mal
|
| 78 |
private static int nUpdate = 0; |
| 79 |
private JNCSFile file = null; |
| 80 |
private String errorMessage = null; |
| 81 |
private boolean multifile = false; |
| 82 |
private Extent v = null; |
| 83 |
|
| 84 |
|
| 85 |
// Ultimo porcentaje de refresco. Se carga en el update y se
|
| 86 |
// actualiza en el refreshUpdate
|
| 87 |
private int lastRefreshPercent = 0; |
| 88 |
|
| 89 |
public EcwFile(IProjection proj, String fName) { |
| 90 |
super(proj, null); |
| 91 |
fName = DataSourceSE.normalize(fName); |
| 92 |
super.setName(fName);
|
| 93 |
extent = new Extent();
|
| 94 |
|
| 95 |
try {
|
| 96 |
|
| 97 |
if (!new File(fName).exists() && !fName.startsWith("ecwp:")){ |
| 98 |
System.err.println("No se puede abrir el archivo"); |
| 99 |
return;
|
| 100 |
} |
| 101 |
|
| 102 |
file = new JNCSFile(fName, false); |
| 103 |
load(); |
| 104 |
//readGeoInfo(fName);
|
| 105 |
bandCount = file.numBands; |
| 106 |
|
| 107 |
if ( bandCount > 2) { |
| 108 |
setBand(RED_BAND, 0);
|
| 109 |
setBand(GREEN_BAND, 1);
|
| 110 |
setBand(BLUE_BAND, 2);
|
| 111 |
} else
|
| 112 |
setBand(RED_BAND|GREEN_BAND|BLUE_BAND, 0);
|
| 113 |
} catch (Exception e) { |
| 114 |
errorMessage = e.getMessage(); |
| 115 |
System.err.println(errorMessage);
|
| 116 |
e.printStackTrace(); |
| 117 |
} |
| 118 |
} |
| 119 |
|
| 120 |
/**
|
| 121 |
* Carga un ECW.
|
| 122 |
*
|
| 123 |
* @param fname
|
| 124 |
*/
|
| 125 |
public GeoFileSE load() {
|
| 126 |
double minX;
|
| 127 |
double minY;
|
| 128 |
double maxX;
|
| 129 |
double maxY;
|
| 130 |
|
| 131 |
if(file.cellIncrementY > 0) |
| 132 |
file.cellIncrementY = -file.cellIncrementY; |
| 133 |
|
| 134 |
minX = file.originX; |
| 135 |
maxY = file.originY; |
| 136 |
maxX = file.originX + |
| 137 |
((double) (file.width - 1) * file.cellIncrementX); |
| 138 |
minY = file.originY + |
| 139 |
((double) (file.height - 1) * file.cellIncrementY); |
| 140 |
|
| 141 |
extent = new Extent(minX, minY, maxX, maxY);
|
| 142 |
requestExtent = extent; |
| 143 |
return this; |
| 144 |
} |
| 145 |
|
| 146 |
public void close() { |
| 147 |
if(file != null){ |
| 148 |
file.close(true);
|
| 149 |
file = null;
|
| 150 |
} |
| 151 |
} |
| 152 |
|
| 153 |
/**
|
| 154 |
* Devuelve el ancho de la imagen
|
| 155 |
*/
|
| 156 |
public int getWidth() { |
| 157 |
return file.width;
|
| 158 |
} |
| 159 |
|
| 160 |
/**
|
| 161 |
* Devuelve el alto de la imagen
|
| 162 |
*/
|
| 163 |
public int getHeight() { |
| 164 |
return file.height;
|
| 165 |
} |
| 166 |
|
| 167 |
/**
|
| 168 |
*
|
| 169 |
*/
|
| 170 |
public void setMultifile(boolean mult) { |
| 171 |
this.multifile = mult;
|
| 172 |
} |
| 173 |
|
| 174 |
public void setView(Extent e) { |
| 175 |
//Aplicamos la transformaci?n a la vista en caso de que haya un fichero .rmf
|
| 176 |
/*
|
| 177 |
if(file.cellIncrementY > 0)
|
| 178 |
file.cellIncrementY = -file.cellIncrementY;
|
| 179 |
if(minX < file.originX)
|
| 180 |
minX = file.originX;
|
| 181 |
if(maxY > file.originY)
|
| 182 |
maxY = file.originY;
|
| 183 |
if(maxX > (file.originX + ((double) (file.width - 1) * file.cellIncrementX)))
|
| 184 |
maxX = file.originX + ((double) (file.width - 1) * file.cellIncrementX);
|
| 185 |
if(minY < file.originY + ((double) (file.height - 1) * file.cellIncrementY))
|
| 186 |
minY = file.originY + ((double) (file.height - 1) * file.cellIncrementY);
|
| 187 |
|
| 188 |
Extent transformView = new Extent( minX, minY, maxX, maxY );*/
|
| 189 |
v = new Extent(e);
|
| 190 |
} |
| 191 |
|
| 192 |
public Extent getView() {
|
| 193 |
return v;
|
| 194 |
} |
| 195 |
|
| 196 |
private void setFileView(int numBands, int [] bandList, ChunkFrame f) |
| 197 |
throws JNCSFileNotOpenException, JNCSInvalidSetViewException {
|
| 198 |
file.setView(file.numBands, bandList, f.v.minX(), f.v.maxY(), f.v.maxX(), f.v.minY(), f.width, f.height); |
| 199 |
} |
| 200 |
|
| 201 |
/**
|
| 202 |
* Obtiene un trozo de imagen (determinado por la vista y los par?metros.
|
| 203 |
*
|
| 204 |
* @param width
|
| 205 |
* @param height
|
| 206 |
*/
|
| 207 |
public synchronized Image updateImage(int width, int height, ICoordTrans rp) { |
| 208 |
// TODO reproyectar para devolver el trozo de imagen pedida sobre ...
|
| 209 |
// la proyecci?n de destino.
|
| 210 |
int line = 0; |
| 211 |
Dimension fullSize = null; |
| 212 |
Image ecwImage = null; |
| 213 |
|
| 214 |
if (file == null) { |
| 215 |
return ecwImage;
|
| 216 |
} |
| 217 |
|
| 218 |
try {
|
| 219 |
int[] bandlist; |
| 220 |
int[] bandListTriband; |
| 221 |
int[] pRGBArray = null; |
| 222 |
|
| 223 |
if(mustVerifySize()){
|
| 224 |
// Work out the correct aspect for the setView call.
|
| 225 |
double dFileAspect = (double) v.width() / (double) v.height(); |
| 226 |
double dWindowAspect = (double) width / (double) height; |
| 227 |
|
| 228 |
if (dFileAspect > dWindowAspect) {
|
| 229 |
height = (int) ((double) width / dFileAspect); |
| 230 |
} else {
|
| 231 |
width = (int) ((double) height * dFileAspect); |
| 232 |
} |
| 233 |
} |
| 234 |
fullSize = new Dimension(width, height); |
| 235 |
|
| 236 |
//System.out.println("fullSize = ("+width+","+height+")");
|
| 237 |
// Peta en los peque?os ... arreglar antes de meter del todo
|
| 238 |
ChunkFrame[] frames = ChunkFrame.computeFrames(file, v, fullSize, extent);
|
| 239 |
|
| 240 |
if (frames.length == 1) { |
| 241 |
width = frames[0].width;
|
| 242 |
height = frames[0].height;
|
| 243 |
|
| 244 |
if (width <= 0) { |
| 245 |
width = 1;
|
| 246 |
} |
| 247 |
|
| 248 |
if (height <= 0) { |
| 249 |
height = 1;
|
| 250 |
} |
| 251 |
} |
| 252 |
|
| 253 |
/* JNCSDatasetPoint ptMin = file.convertWorldToDataset(v.minX(), v.minY());
|
| 254 |
JNCSDatasetPoint ptMax = file.convertWorldToDataset(v.maxX(), v.maxY());
|
| 255 |
System.out.println("Dataset coords Width = "+(ptMax.x-ptMin.x)+", px width ="+width);
|
| 256 |
// BEGIN Cambiando para soportar e < 1:1
|
| 257 |
// TODO Mejorarlo para que los PAN con un zoom muy grande sean correctos
|
| 258 |
if ((ptMax.x-ptMin.x)<width) {
|
| 259 |
width = ptMax.x-ptMin.x;
|
| 260 |
height = ptMin.y-ptMax.y;
|
| 261 |
System.out.println("Size=("+width+","+height+")");
|
| 262 |
mustResize = true;
|
| 263 |
}*/
|
| 264 |
|
| 265 |
// Create an image of the ecw file.
|
| 266 |
if (doTransparency) {
|
| 267 |
ecwImage = new BufferedImage(width, height, |
| 268 |
BufferedImage.TYPE_INT_ARGB);
|
| 269 |
} else {
|
| 270 |
ecwImage = new BufferedImage(width, height, |
| 271 |
BufferedImage.TYPE_INT_RGB);
|
| 272 |
} |
| 273 |
|
| 274 |
pRGBArray = new int[width]; |
| 275 |
|
| 276 |
// Setup the view parameters for the ecw file.
|
| 277 |
bandlist = new int[bandCount]; |
| 278 |
bandListTriband = new int[bandCount]; |
| 279 |
|
| 280 |
if (bandCount > 2) { |
| 281 |
bandlist[0] = getBand(RED_BAND);
|
| 282 |
bandlist[1] = getBand(GREEN_BAND);
|
| 283 |
bandlist[2] = getBand(BLUE_BAND);
|
| 284 |
|
| 285 |
if (bandCount > 3) { |
| 286 |
for (int i = 3; i < bandCount; i++) { |
| 287 |
bandlist[i] = 0;
|
| 288 |
} |
| 289 |
} |
| 290 |
} else {
|
| 291 |
for (int i = 0; i < bandCount; i++) { |
| 292 |
bandlist[i] = i; |
| 293 |
} |
| 294 |
} |
| 295 |
|
| 296 |
if (bandCount == 3) { |
| 297 |
bandListTriband[0] = 0; |
| 298 |
bandListTriband[1] = 1; |
| 299 |
bandListTriband[2] = 2; |
| 300 |
} |
| 301 |
|
| 302 |
for (int nChunk = 0; nChunk < frames.length; nChunk++) { |
| 303 |
ChunkFrame f = frames[nChunk]; |
| 304 |
|
| 305 |
// Set the view
|
| 306 |
if (bandCount != 3) { |
| 307 |
setFileView(file.numBands, bandlist, f); |
| 308 |
} else {
|
| 309 |
setFileView(file.numBands, bandListTriband, f); |
| 310 |
} |
| 311 |
|
| 312 |
/*
|
| 313 |
* Esta peli es porque el Ecw no intercambia las bandas con lo que me toca hacerlo
|
| 314 |
* a mano. Primero detectamos si se ha alterado el orden de las mismas. Si es as?
|
| 315 |
* calculamos mascaras y desplazamientos y hacemos una copia en pRGBArrayCopy
|
| 316 |
* con las bandas alteradas de orden
|
| 317 |
*/
|
| 318 |
int[] pRGBArrayCopy = null; |
| 319 |
int[] mascara = new int[3]; |
| 320 |
int[] shl = new int[3]; |
| 321 |
int[] shr = new int[3]; |
| 322 |
boolean order = true; |
| 323 |
|
| 324 |
if (bandCount == 3) { |
| 325 |
for (int i = 0; i < bandCount; i++) |
| 326 |
if (bandlist[i] != i) {
|
| 327 |
order = false;
|
| 328 |
} |
| 329 |
|
| 330 |
if (!order) {
|
| 331 |
for (int i = 0; i < bandCount; i++) { |
| 332 |
switch (bandlist[i]) {
|
| 333 |
case 0: |
| 334 |
mascara[i] = 0x00ff0000;
|
| 335 |
break;
|
| 336 |
case 1: |
| 337 |
mascara[i] = 0x0000ff00;
|
| 338 |
break;
|
| 339 |
case 2: |
| 340 |
mascara[i] = 0x000000ff;
|
| 341 |
break;
|
| 342 |
} |
| 343 |
if ((i == 1) && (bandlist[i] == 0)) |
| 344 |
shr[i] = 8;
|
| 345 |
if ((i == 2) && (bandlist[i] == 0)) |
| 346 |
shr[i] = 16;
|
| 347 |
if ((i == 0) && (bandlist[i] == 1)) |
| 348 |
shl[i] = 8;
|
| 349 |
if ((i == 2) && (bandlist[i] == 1)) |
| 350 |
shr[i] = 8;
|
| 351 |
if ((i == 0) && (bandlist[i] == 2)) |
| 352 |
shl[i] = 16;
|
| 353 |
if ((i == 1) && (bandlist[i] == 2)) |
| 354 |
shl[i] = 8;
|
| 355 |
} |
| 356 |
} |
| 357 |
} |
| 358 |
|
| 359 |
// Read the scan lines
|
| 360 |
for (line = 0; line < f.height; line++) { |
| 361 |
file.readLineRGBA(pRGBArray); |
| 362 |
|
| 363 |
if ((bandCount == 3) && !order) { |
| 364 |
pRGBArrayCopy = new int[pRGBArray.length]; |
| 365 |
|
| 366 |
for (int i = 0; i < pRGBArray.length; i++) { |
| 367 |
pRGBArrayCopy[i] = (pRGBArray[i] & 0xff000000) +
|
| 368 |
(((pRGBArray[i] & mascara[2]) << shl[2]) >> shr[2]) + |
| 369 |
(((pRGBArray[i] & mascara[1]) << shl[1]) >> shr[1]) + |
| 370 |
(((pRGBArray[i] & mascara[0]) << shl[0]) >> shr[0]); |
| 371 |
} |
| 372 |
|
| 373 |
pRGBArray = pRGBArrayCopy; |
| 374 |
} |
| 375 |
|
| 376 |
// Prueba de sustituci?n de color transparente
|
| 377 |
if (doTransparency) {
|
| 378 |
if (line == 0) { |
| 379 |
tFilter.debug = true;
|
| 380 |
} |
| 381 |
|
| 382 |
tFilter.filterLine(pRGBArray); |
| 383 |
tFilter.debug = false;
|
| 384 |
} |
| 385 |
|
| 386 |
((BufferedImage) ecwImage).setRGB(f.pos.x, f.pos.y + line,
|
| 387 |
f.width, 1, pRGBArray, 0, |
| 388 |
f.width); |
| 389 |
} |
| 390 |
} |
| 391 |
|
| 392 |
if (frames[0].mustResize) { |
| 393 |
//System.out.println("resize "+fullSize);
|
| 394 |
return resizeImage(fullSize, ecwImage);
|
| 395 |
} |
| 396 |
|
| 397 |
/*
|
| 398 |
* La excepci?n atrapada es la de 'zoom > 1:1 no valido'
|
| 399 |
} catch (com.ermapper.ecw.JNCSInvalidSetViewException e) {
|
| 400 |
System.err.println(errorMessage);
|
| 401 |
e.printStackTrace(); */
|
| 402 |
} catch (com.ermapper.ecw.JNCSException e) { //java.lang.ArrayIndexOutOfBoundsException: |
| 403 |
System.err.println("EcwFile JNCS Error en la l?nea " + line + "/" + |
| 404 |
height); |
| 405 |
System.err.println(e.getMessage());
|
| 406 |
e.printStackTrace(); |
| 407 |
} catch (java.lang.ArrayIndexOutOfBoundsException e) { //: |
| 408 |
System.err.println("EcwFile ArrayIndex Error en la l?nea " + line + |
| 409 |
"/" + height);
|
| 410 |
System.err.println(e.getMessage());
|
| 411 |
e.printStackTrace(); |
| 412 |
} catch (Exception e) { |
| 413 |
errorMessage = e.getMessage(); |
| 414 |
|
| 415 |
// g.drawString(errorMessage, 0, 50);
|
| 416 |
System.err.println(errorMessage);
|
| 417 |
e.printStackTrace(); |
| 418 |
} |
| 419 |
|
| 420 |
lastRefreshPercent = file.getPercentComplete(); |
| 421 |
System.out.println("Leido al " + lastRefreshPercent + " %."); |
| 422 |
|
| 423 |
return ecwImage;
|
| 424 |
} |
| 425 |
|
| 426 |
/**
|
| 427 |
* Redimensionado de imagen
|
| 428 |
* La funci?n getScaledInstance nos devuelve un tipo image que no sirve por lo que
|
| 429 |
* habr? que crear buffImg como BufferedImage y copiar los datos devueltos por esta
|
| 430 |
* funci?n a este que es el que ser? devuelto por la funci?n
|
| 431 |
* @param sz
|
| 432 |
* @param image Image de entrada
|
| 433 |
* @return Imagen reescalada
|
| 434 |
*/
|
| 435 |
private Image resizeImage(Dimension sz, Image image) { |
| 436 |
Image buffImg = null; |
| 437 |
Image img = image.getScaledInstance((int) sz.getWidth(), |
| 438 |
(int) sz.getHeight(),
|
| 439 |
Image.SCALE_SMOOTH);
|
| 440 |
|
| 441 |
//Todo este pollo es para copiar el tipo image devuelto a BufferedImage
|
| 442 |
buffImg = new BufferedImage(img.getWidth(null), img.getHeight(null), |
| 443 |
BufferedImage.TYPE_INT_ARGB);
|
| 444 |
|
| 445 |
int[] pixels = new int[img.getWidth(null) * img.getHeight(null)]; |
| 446 |
PixelGrabber pg = new PixelGrabber(img, 0, 0, img.getWidth(null), |
| 447 |
img.getHeight(null), pixels, 0, |
| 448 |
img.getWidth(null));
|
| 449 |
|
| 450 |
try {
|
| 451 |
pg.grabPixels(); |
| 452 |
} catch (InterruptedException e) { |
| 453 |
e.printStackTrace(); |
| 454 |
} |
| 455 |
|
| 456 |
for (int j = 0; j < buffImg.getHeight(null); j++) { |
| 457 |
for (int i = 0; i < buffImg.getWidth(null); i++) { |
| 458 |
((BufferedImage) buffImg).setRGB(i, j,
|
| 459 |
pixels[(j * buffImg.getWidth(null)) +
|
| 460 |
i]); |
| 461 |
} |
| 462 |
} |
| 463 |
|
| 464 |
return buffImg;
|
| 465 |
} |
| 466 |
|
| 467 |
/**
|
| 468 |
* Reproyecta el raster.
|
| 469 |
*/
|
| 470 |
public void reProject(ICoordTrans rp) { |
| 471 |
// TODO metodo reProject pendiente de implementar
|
| 472 |
} |
| 473 |
|
| 474 |
/**
|
| 475 |
* Soporte para actualizaci?n de la imagen
|
| 476 |
* @see com.ermapper.ecw.JNCSProgressiveUpdate#refreshUpdate(int, int, double, double, double, double)
|
| 477 |
*/
|
| 478 |
public void refreshUpdate(int nWidth, int nHeight, double dWorldTLX, |
| 479 |
double dWorldTLY, double dWorldBRX, |
| 480 |
double dWorldBRY) {
|
| 481 |
int completado = file.getPercentComplete();
|
| 482 |
System.out.println("EcwFile: se actualiza 1: " + completado + |
| 483 |
" % completado");
|
| 484 |
|
| 485 |
if ((updatable != null) && (lastRefreshPercent < 100)) { |
| 486 |
if (((completado - lastRefreshPercent) > 25) || |
| 487 |
(completado == 100)) {
|
| 488 |
lastRefreshPercent = file.getPercentComplete(); |
| 489 |
updatable.repaint(); |
| 490 |
} |
| 491 |
} |
| 492 |
} |
| 493 |
|
| 494 |
public void refreshUpdate(int nWidth, int nHeight, int dDatasetTLX, |
| 495 |
int dDatasetTLY, int dDatasetBRX, int dDatasetBRY) { |
| 496 |
System.out.println("EcwFile: se actualiza 2"); |
| 497 |
} |
| 498 |
|
| 499 |
/**
|
| 500 |
* Esta funci?n es porque el Ecw no intercambia las bandas con lo que me toca hacerlo
|
| 501 |
* a mano. Primero detectamos si se ha alterado el orden de las mismas. Si es as?
|
| 502 |
* calculamos mascaras y desplazamientos y hacemos una copia en pRGBArrayCopy
|
| 503 |
* con las bandas alteradas de orden
|
| 504 |
* @param bandList lista de bandas
|
| 505 |
* @param mask mascara
|
| 506 |
* @param shl desplazamiento izquierda
|
| 507 |
* @param shr desplazamiento derecha
|
| 508 |
*/
|
| 509 |
private boolean calcMaskAndShift(int[] bandList, int[] mask, int[] shl, |
| 510 |
int[] shr) { |
| 511 |
boolean order = true; |
| 512 |
|
| 513 |
if (bandCount == 3) { |
| 514 |
for (int i = 0; i < bandCount; i++) |
| 515 |
if (bandList[i] != i) {
|
| 516 |
order = false;
|
| 517 |
} |
| 518 |
|
| 519 |
if (!order) {
|
| 520 |
for (int i = 0; i < bandCount; i++) { |
| 521 |
switch (bandList[i]) {
|
| 522 |
case 0: |
| 523 |
mask[i] = 0x00ff0000;
|
| 524 |
break;
|
| 525 |
case 1: |
| 526 |
mask[i] = 0x0000ff00;
|
| 527 |
break;
|
| 528 |
case 2: |
| 529 |
mask[i] = 0x000000ff;
|
| 530 |
break;
|
| 531 |
} |
| 532 |
|
| 533 |
if ((i == 1) && (bandList[i] == 0)) |
| 534 |
shr[i] = 8;
|
| 535 |
if ((i == 2) && (bandList[i] == 0)) |
| 536 |
shr[i] = 16;
|
| 537 |
if ((i == 0) && (bandList[i] == 1)) |
| 538 |
shl[i] = 8;
|
| 539 |
if ((i == 2) && (bandList[i] == 1)) |
| 540 |
shr[i] = 8;
|
| 541 |
if ((i == 0) && (bandList[i] == 2)) |
| 542 |
shl[i] = 16;
|
| 543 |
if ((i == 1) && (bandList[i] == 2)) |
| 544 |
shl[i] = 8;
|
| 545 |
} |
| 546 |
} |
| 547 |
} |
| 548 |
|
| 549 |
return order;
|
| 550 |
} |
| 551 |
|
| 552 |
/**
|
| 553 |
* Intercambio de bandas para ecw manual. Se le pasa el array de bytes que se desea intercambiar
|
| 554 |
* la mascara y desplazamientos previamente calculados con calcMaskAndShift
|
| 555 |
* @param order true si el orden de las bandas no est? alterado y false si lo est?
|
| 556 |
* @param pRGBArray array de
|
| 557 |
* @param mascara
|
| 558 |
* @param shl desplazamiento a izquierda
|
| 559 |
* @param shr desplazamiento a derecha
|
| 560 |
* @return array con las bandas cambiadas
|
| 561 |
*/
|
| 562 |
private int[] changeBands(boolean order, int[] pRGBArray, int[] mascara, |
| 563 |
int[] shl, int[] shr) { |
| 564 |
if ((bandCount == 3) && !order) { |
| 565 |
int[] pRGBArrayCopy = new int[pRGBArray.length]; |
| 566 |
|
| 567 |
for (int i = 0; i < pRGBArray.length; i++) { |
| 568 |
pRGBArrayCopy[i] = (pRGBArray[i] & 0xff000000) +
|
| 569 |
(((pRGBArray[i] & mascara[2]) << shl[2]) >> shr[2]) + |
| 570 |
(((pRGBArray[i] & mascara[1]) << shl[1]) >> shr[1]) + |
| 571 |
(((pRGBArray[i] & mascara[0]) << shl[0]) >> shr[0]); |
| 572 |
} |
| 573 |
|
| 574 |
return pRGBArrayCopy;
|
| 575 |
} |
| 576 |
|
| 577 |
return pRGBArray;
|
| 578 |
} |
| 579 |
|
| 580 |
/**
|
| 581 |
* Asigna al objeto Image los valores con los dato de la imagen contenidos en el
|
| 582 |
* vector de enteros.
|
| 583 |
* @param image imagen con los datos actuales
|
| 584 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
| 585 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
| 586 |
* @param w Ancho de la imagen
|
| 587 |
* @param h Alto de la imagen
|
| 588 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
| 589 |
* @param offset desplazamiento
|
| 590 |
* @param scansize tama?o de imagen recorrida por cada p
|
| 591 |
*/
|
| 592 |
protected void setRGBLine(BufferedImage image, int startX, int startY, |
| 593 |
int w, int h, int[] rgbArray, int offset, |
| 594 |
int scansize) {
|
| 595 |
image.setRGB(startX, startY, w, h, rgbArray, offset, scansize); |
| 596 |
} |
| 597 |
|
| 598 |
/**
|
| 599 |
* Asigna al objeto Image la mezcla entre los valores que ya tiene y los valores
|
| 600 |
* con los dato de la imagen contenidos en el vector de enteros. De los valores RGB
|
| 601 |
* que ya contiene se mantienen las bandas que no coinciden con el valor de flags. La
|
| 602 |
* banda correspondiente a flags es sustituida por los datos del vector.
|
| 603 |
* @param image imagen con los datos actuales
|
| 604 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
| 605 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
| 606 |
* @param w Ancho de la imagen
|
| 607 |
* @param h Alto de la imagen
|
| 608 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
| 609 |
* @param offset desplazamiento
|
| 610 |
* @param scansize tama?o de imagen recorrida por cada paso
|
| 611 |
* @param flags banda que se va a sustituir (Ctes de GeoRasterFile)
|
| 612 |
*/
|
| 613 |
protected void setRGBLine(BufferedImage image, int startX, int startY, |
| 614 |
int w, int h, int[] rgbArray, int offset, |
| 615 |
int scansize, int flags) { |
| 616 |
int[] line = new int[rgbArray.length]; |
| 617 |
image.getRGB(startX, startY, w, h, line, offset, scansize); |
| 618 |
|
| 619 |
if (flags == GeoRasterFile.RED_BAND) {
|
| 620 |
for (int i = 0; i < line.length; i++) |
| 621 |
line[i] = (line[i] & 0x0000ffff) | (rgbArray[i] & 0xffff0000); |
| 622 |
} else if (flags == GeoRasterFile.GREEN_BAND) { |
| 623 |
for (int i = 0; i < line.length; i++) |
| 624 |
line[i] = (line[i] & 0x00ff00ff) | (rgbArray[i] & 0xff00ff00); |
| 625 |
} else if (flags == GeoRasterFile.BLUE_BAND) { |
| 626 |
for (int i = 0; i < line.length; i++) |
| 627 |
line[i] = (line[i] & 0x00ffff00) | (rgbArray[i] & 0xff0000ff); |
| 628 |
} |
| 629 |
|
| 630 |
image.setRGB(startX, startY, w, h, line, offset, scansize); |
| 631 |
} |
| 632 |
|
| 633 |
/**
|
| 634 |
* Asigna al objeto Image la mezcla entre los valores que ya tiene y los valores
|
| 635 |
* con los dato de la imagen contenidos en el vector de enteros. De los valores RGB
|
| 636 |
* que ya contiene se mantienen las bandas que no coinciden con el valor de flags. La
|
| 637 |
* banda correspondiente a flags es sustituida por los datos del vector.
|
| 638 |
* @param image imagen con los datos actuales
|
| 639 |
* @param startX inicio de la posici?n en X dentro de la imagen
|
| 640 |
* @param startY inicio de la posici?n en X dentro de la imagen
|
| 641 |
* @param w Ancho de la imagen
|
| 642 |
* @param h Alto de la imagen
|
| 643 |
* @param rgbArray vector que contiene la banda que se va a sustituir
|
| 644 |
* @param offset desplazamiento
|
| 645 |
* @param scansize tama?o de imagen recorrida por cada paso
|
| 646 |
* @param origBand Banda origen del GeoRasterFile
|
| 647 |
* @param destBandFlag banda que se va a sustituir (Ctes de GeoRasterFile)
|
| 648 |
*/
|
| 649 |
protected void setRGBLine(BufferedImage image, int startX, int startY, |
| 650 |
int w, int h, int[] rgbArray, int offset, |
| 651 |
int scansize, int origBand, int destBandFlag) { |
| 652 |
int[] line = new int[rgbArray.length]; |
| 653 |
image.getRGB(startX, startY, w, h, line, offset, scansize); |
| 654 |
|
| 655 |
if ((origBand == 0) && (destBandFlag == GeoRasterFile.RED_BAND)) { |
| 656 |
for (int i = 0; i < line.length; i++) |
| 657 |
line[i] = (line[i] & 0xff00ffff) | (rgbArray[i] & 0x00ff0000); |
| 658 |
} else if ((origBand == 1) && |
| 659 |
(destBandFlag == GeoRasterFile.GREEN_BAND)) {
|
| 660 |
for (int i = 0; i < line.length; i++) |
| 661 |
line[i] = (line[i] & 0xffff00ff) | (rgbArray[i] & 0x0000ff00); |
| 662 |
} else if ((origBand == 2) && |
| 663 |
(destBandFlag == GeoRasterFile.BLUE_BAND)) {
|
| 664 |
for (int i = 0; i < line.length; i++) |
| 665 |
line[i] = (line[i] & 0xffffff00) | (rgbArray[i] & 0x000000ff); |
| 666 |
} |
| 667 |
else if ((origBand == 0) && (destBandFlag == GeoRasterFile.GREEN_BAND)) { |
| 668 |
for (int i = 0; i < line.length; i++) |
| 669 |
line[i] = (line[i] & 0xffff00ff) |
|
| 670 |
((rgbArray[i] & 0x00ff0000) >> 8); |
| 671 |
} else if ((origBand == 0) && |
| 672 |
(destBandFlag == GeoRasterFile.BLUE_BAND)) {
|
| 673 |
for (int i = 0; i < line.length; i++) |
| 674 |
line[i] = (line[i] & 0xffffff00) |
|
| 675 |
((rgbArray[i] & 0x00ff0000) >> 16); |
| 676 |
} |
| 677 |
else if ((origBand == 1) && (destBandFlag == GeoRasterFile.RED_BAND)) { |
| 678 |
for (int i = 0; i < line.length; i++) |
| 679 |
line[i] = (line[i] & 0xff00ffff) |
|
| 680 |
((rgbArray[i] & 0x0000ff00) << 8); |
| 681 |
} else if ((origBand == 1) && |
| 682 |
(destBandFlag == GeoRasterFile.BLUE_BAND)) {
|
| 683 |
for (int i = 0; i < line.length; i++) |
| 684 |
line[i] = (line[i] & 0xffffff00) |
|
| 685 |
((rgbArray[i] & 0x0000ff00) >> 8); |
| 686 |
} |
| 687 |
else if ((origBand == 2) && (destBandFlag == GeoRasterFile.RED_BAND)) { |
| 688 |
for (int i = 0; i < line.length; i++) |
| 689 |
line[i] = (line[i] & 0xff00ffff) |
|
| 690 |
((rgbArray[i] & 0x000000ff) << 16); |
| 691 |
} else if ((origBand == 2) && |
| 692 |
(destBandFlag == GeoRasterFile.GREEN_BAND)) {
|
| 693 |
for (int i = 0; i < line.length; i++) |
| 694 |
line[i] = (line[i] & 0xffff00ff) |
|
| 695 |
((rgbArray[i] & 0x000000ff) << 8); |
| 696 |
} |
| 697 |
|
| 698 |
image.setRGB(startX, startY, w, h, line, offset, scansize); |
| 699 |
} |
| 700 |
|
| 701 |
|
| 702 |
/* (non-Javadoc)
|
| 703 |
* @see org.cresques.io.GeoRasterFile#updateImage(int, int, org.cresques.cts.ICoordTrans, java.awt.Image, int origBand, int destBand)
|
| 704 |
*/
|
| 705 |
public Image updateImage(int width, int height, ICoordTrans rp, Image img, |
| 706 |
int origBand, int destBandFlag) throws SupersamplingNotSupportedException{ |
| 707 |
//TODO reproyectar para devolver el trozo de imagen pedida sobre ...
|
| 708 |
// la proyecci?n de destino.
|
| 709 |
int line = 0; |
| 710 |
Dimension fullSize = null; |
| 711 |
boolean trySupersampling = false; |
| 712 |
|
| 713 |
if (file == null) { |
| 714 |
return null; |
| 715 |
} |
| 716 |
|
| 717 |
try {
|
| 718 |
int[] bandlist; |
| 719 |
int[] bandListTriband; |
| 720 |
int[] pRGBArray = null; |
| 721 |
|
| 722 |
if(mustVerifySize()){
|
| 723 |
// Work out the correct aspect for the setView call.
|
| 724 |
double dFileAspect = (double) v.width() / (double) v.height(); |
| 725 |
double dWindowAspect = (double) width / (double) height; |
| 726 |
|
| 727 |
if (dFileAspect > dWindowAspect) {
|
| 728 |
height = (int) ((double) width / dFileAspect); |
| 729 |
} else {
|
| 730 |
width = (int) ((double) height * dFileAspect); |
| 731 |
} |
| 732 |
} |
| 733 |
|
| 734 |
fullSize = new Dimension(width, height); |
| 735 |
|
| 736 |
ChunkFrame[] frames = ChunkFrame.computeFrames(file, v, fullSize, extent);
|
| 737 |
|
| 738 |
if (frames.length == 1) { |
| 739 |
width = frames[0].width;
|
| 740 |
height = frames[0].height;
|
| 741 |
|
| 742 |
if (width <= 0) |
| 743 |
width = 1;
|
| 744 |
|
| 745 |
if (height <= 0) |
| 746 |
height = 1;
|
| 747 |
} |
| 748 |
|
| 749 |
// Create an image of the ecw file.
|
| 750 |
pRGBArray = new int[width]; |
| 751 |
|
| 752 |
// Setup the view parameters for the ecw file.
|
| 753 |
bandlist = new int[bandCount]; |
| 754 |
bandListTriband = new int[bandCount]; |
| 755 |
|
| 756 |
if (bandCount > 2) { |
| 757 |
bandlist[0] = getBand(RED_BAND);
|
| 758 |
bandlist[1] = getBand(GREEN_BAND);
|
| 759 |
bandlist[2] = getBand(BLUE_BAND);
|
| 760 |
|
| 761 |
if (bandCount > 3) { |
| 762 |
for (int i = 3; i < bandCount; i++) { |
| 763 |
bandlist[i] = 0;
|
| 764 |
} |
| 765 |
} |
| 766 |
} else {
|
| 767 |
for (int i = 0; i < bandCount; i++) |
| 768 |
bandlist[i] = i; |
| 769 |
} |
| 770 |
|
| 771 |
if (bandCount == 3) { |
| 772 |
bandListTriband[0] = 0; |
| 773 |
bandListTriband[1] = 1; |
| 774 |
bandListTriband[2] = 2; |
| 775 |
} |
| 776 |
|
| 777 |
int[] mascara = new int[3]; |
| 778 |
int[] shl = new int[3]; |
| 779 |
int[] shr = new int[3]; |
| 780 |
boolean order = true; |
| 781 |
|
| 782 |
if (img == null) { //Caso en el que se crea un Image |
| 783 |
EcwFile.nUpdate = 1;
|
| 784 |
|
| 785 |
Image ecwImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB); |
| 786 |
|
| 787 |
for (int nChunk = 0; nChunk < frames.length; nChunk++) { |
| 788 |
ChunkFrame f = frames[nChunk]; |
| 789 |
|
| 790 |
try{
|
| 791 |
if (bandCount != 3) { |
| 792 |
setFileView(file.numBands, bandlist, f); |
| 793 |
} else {
|
| 794 |
setFileView(file.numBands, bandListTriband, f); |
| 795 |
} |
| 796 |
}catch(JNCSInvalidSetViewException exc){
|
| 797 |
trySupersampling = true;
|
| 798 |
} |
| 799 |
|
| 800 |
order = calcMaskAndShift(bandlist, mascara, shl, shr); |
| 801 |
|
| 802 |
for (line = 0; line < f.height; line++) { |
| 803 |
file.readLineRGBA(pRGBArray); |
| 804 |
pRGBArray = changeBands(order, pRGBArray, mascara, shl, shr); |
| 805 |
setRGBLine((BufferedImage) ecwImage, f.pos.x, f.pos.y + line, f.width, 1, pRGBArray, 0, f.width); |
| 806 |
} |
| 807 |
} //Chuncks
|
| 808 |
|
| 809 |
applyAlpha(ecwImage); |
| 810 |
|
| 811 |
if (frames[0].mustResize && !this.multifile) |
| 812 |
return resizeImageII(fullSize, ecwImage);
|
| 813 |
|
| 814 |
lastRefreshPercent = file.getPercentComplete(); |
| 815 |
|
| 816 |
//System.out.println("Leido al "+lastRefreshPercent+" %.");
|
| 817 |
return ecwImage;
|
| 818 |
} else { //Caso en el que se actualiza una banda del Image |
| 819 |
EcwFile.nUpdate++; |
| 820 |
|
| 821 |
for (int nChunk = 0; nChunk < frames.length; nChunk++) { |
| 822 |
ChunkFrame f = frames[nChunk]; |
| 823 |
|
| 824 |
if (bandCount != 3) { |
| 825 |
setFileView(file.numBands, bandlist, f); |
| 826 |
} else {
|
| 827 |
setFileView(file.numBands, bandListTriband, f); |
| 828 |
} |
| 829 |
|
| 830 |
order = calcMaskAndShift(bandlist, mascara, shl, shr); |
| 831 |
|
| 832 |
for (line = 0; line < f.height; line++) { |
| 833 |
file.readLineRGBA(pRGBArray); |
| 834 |
pRGBArray = changeBands(order, pRGBArray, mascara, shl, shr); |
| 835 |
setRGBLine((BufferedImage) img, f.pos.x, f.pos.y + line, f.width, 1, pRGBArray, 0, f.width, origBand, destBandFlag); |
| 836 |
} |
| 837 |
} //Chuncks
|
| 838 |
|
| 839 |
applyAlpha(img); |
| 840 |
|
| 841 |
if (frames[0].mustResize && (nUpdate == 3) && this.multifile) { |
| 842 |
return resizeImageII(fullSize, img);
|
| 843 |
} |
| 844 |
|
| 845 |
lastRefreshPercent = file.getPercentComplete(); |
| 846 |
|
| 847 |
//System.out.println("Leido al "+lastRefreshPercent+" %.");
|
| 848 |
return img;
|
| 849 |
} |
| 850 |
} catch (com.ermapper.ecw.JNCSException e) { //java.lang.ArrayIndexOutOfBoundsException: |
| 851 |
System.err.println("EcwFile JNCS Error en la l?nea " + line + "/" + |
| 852 |
height); |
| 853 |
System.err.println(e.getMessage());
|
| 854 |
} catch (java.lang.ArrayIndexOutOfBoundsException e) { //: |
| 855 |
System.err.println("EcwFile ArrayIndex Error en la l?nea " + line +"/" + height); |
| 856 |
System.err.println(e.getMessage());
|
| 857 |
} catch (Exception e) { |
| 858 |
errorMessage = e.getMessage(); |
| 859 |
System.err.println(errorMessage);
|
| 860 |
if(trySupersampling)
|
| 861 |
throw new SupersamplingNotSupportedException(); |
| 862 |
} |
| 863 |
|
| 864 |
return img;
|
| 865 |
} |
| 866 |
|
| 867 |
private Image resizeImageII(Dimension sz, Image image) { |
| 868 |
int w = (int)sz.getWidth(); |
| 869 |
int h = (int)sz.getHeight(); |
| 870 |
Image buffImg = new BufferedImage(w, h, BufferedImage.TYPE_INT_ARGB); |
| 871 |
|
| 872 |
//Desplazamiento para la X y la Y leidas. Estas tienen efecto cuando un pixel no empieza a visualizarse
|
| 873 |
//justo en su esquina superior izquierda y tiene que ser cortado en la visualizaci?n.
|
| 874 |
|
| 875 |
double currentViewX = (((double) file.width)/(Math.abs(extent.getMax().getX() - extent.getMin().getX())))*(v.minX()-file.originX); |
| 876 |
double currentViewY = (((double) file.height)/(Math.abs(extent.getMax().getY() - extent.getMin().getY())))*(file.originY - v.minY()); |
| 877 |
double offsetX = Math.abs(currentViewX - ((int)currentViewX)); |
| 878 |
double offsetY = Math.abs(currentViewY - ((int)currentViewY)); |
| 879 |
|
| 880 |
int xSrc, ySrc;
|
| 881 |
int decr = 2; |
| 882 |
|
| 883 |
if(v.minX() == extent.minX() || v.maxX() == extent.maxX() || v.minY() == extent.minY() || v.maxY() == extent.maxY()){
|
| 884 |
decr = 0;
|
| 885 |
offsetX = offsetY = 0;
|
| 886 |
} |
| 887 |
|
| 888 |
double scaleW = (double)((double)(image.getWidth(null) - decr) / (double)w); |
| 889 |
double scaleH = (double)((double)(image.getHeight(null) - decr) / (double)h); |
| 890 |
for (int y1 = 0; y1 < h; y1++){ |
| 891 |
ySrc = (int) ((y1 * scaleH) + offsetY);
|
| 892 |
for (int x1 = 0; x1 < w; x1++){ |
| 893 |
xSrc = (int) ((x1 * scaleW) + offsetX);
|
| 894 |
try {
|
| 895 |
((BufferedImage) buffImg).setRGB(x1, y1, ((BufferedImage)image).getRGB(xSrc, ySrc)); |
| 896 |
} catch (java.lang.ArrayIndexOutOfBoundsException e) {
|
| 897 |
} |
| 898 |
} |
| 899 |
} |
| 900 |
|
| 901 |
return buffImg;
|
| 902 |
} |
| 903 |
|
| 904 |
|
| 905 |
private void applyAlpha(Image im) { |
| 906 |
BufferedImage img = (BufferedImage) im; |
| 907 |
int alpha = (getAlpha() & 0xff) << 24; |
| 908 |
int w = img.getWidth();
|
| 909 |
int[] line = new int[w]; |
| 910 |
|
| 911 |
for (int j = 0; j < img.getHeight(); j++) { |
| 912 |
img.getRGB(0, j, w, 1, line, 0, w); |
| 913 |
|
| 914 |
for (int i = 0; i < w; i++) |
| 915 |
line[i] = (alpha | (line[i] & 0x00ffffff));
|
| 916 |
|
| 917 |
img.setRGB(0, j, w, 1, line, 0, w); |
| 918 |
} |
| 919 |
} |
| 920 |
|
| 921 |
/* (non-Javadoc)
|
| 922 |
* @see org.cresques.io.GeoRasterFile#getData(int, int)
|
| 923 |
*/
|
| 924 |
public Object getData(int x, int y, int band) { |
| 925 |
//file.readLineRGBA();
|
| 926 |
return null; |
| 927 |
} |
| 928 |
|
| 929 |
/**
|
| 930 |
* Devuelve los datos de una ventana solicitada
|
| 931 |
* @param ulX coordenada X superior izda.
|
| 932 |
* @param ulY coordenada Y superior derecha.
|
| 933 |
* @param sizeX tama?o en X de la ventana.
|
| 934 |
* @param sizeY tama?o en Y de la ventana.
|
| 935 |
* @param band Banda solicitada.
|
| 936 |
*/
|
| 937 |
public byte[] getWindow(int ulX, int ulY, int sizeX, int sizeY, int band) { |
| 938 |
//TODO Nacho: Implementar getWindow de EcwFile
|
| 939 |
return null; |
| 940 |
} |
| 941 |
|
| 942 |
/**
|
| 943 |
* Obtiene la zona (Norte / Sur)
|
| 944 |
* @return true si la zona es norte y false si es sur
|
| 945 |
*/
|
| 946 |
public boolean getZone() { |
| 947 |
//TODO Nacho: Implementar getZone de EcwFile
|
| 948 |
return false; |
| 949 |
} |
| 950 |
|
| 951 |
/**
|
| 952 |
*Devuelve el n?mero de zona UTM
|
| 953 |
*@return N?mero de zona
|
| 954 |
*/
|
| 955 |
public int getUTM() { |
| 956 |
// TODO Nacho: Implementar getUTM de EcwFile
|
| 957 |
return 0; |
| 958 |
} |
| 959 |
|
| 960 |
/**
|
| 961 |
* Obtiene el sistema de coordenadas geograficas
|
| 962 |
* @return Sistema de coordenadas geogr?ficas
|
| 963 |
*/
|
| 964 |
public String getGeogCS() { |
| 965 |
//TODO Nacho: Implementar getGeogCS de EcwFile
|
| 966 |
return new String(""); |
| 967 |
} |
| 968 |
|
| 969 |
/**
|
| 970 |
* Devuelve el tama?o de bloque
|
| 971 |
* @return Tama?o de bloque
|
| 972 |
*/
|
| 973 |
public int getBlockSize() { |
| 974 |
//TODO Nacho: Implementar getBlockSize de EcwFile
|
| 975 |
return 1; |
| 976 |
} |
| 977 |
|
| 978 |
/**
|
| 979 |
* Calcula la transformaci?n que se produce sobre la vista cuando la imagen tiene un fichero .rmf
|
| 980 |
* asociado. En Ecw el origen de coordenadas en Y es el valor m?ximo y decrece hasta el m?nimo.
|
| 981 |
* @param originX Origen de la imagen en la coordenada X
|
| 982 |
* @param originY Origen de la imagen en la coordenada Y
|
| 983 |
*/
|
| 984 |
public void setExtentTransform(double originX, double originY, double psX, double psY) { |
| 985 |
|
| 986 |
} |
| 987 |
|
| 988 |
/**
|
| 989 |
* Trozo de imagen (Chunk) en que se divide la consulta a la librer?a,
|
| 990 |
* para esquivar el bug#2.
|
| 991 |
*
|
| 992 |
* @author luisw
|
| 993 |
*/
|
| 994 |
static class ChunkFrame { |
| 995 |
// Ancho m?ximo (~2500 px)
|
| 996 |
final static int MAX_WIDTH = 1536; |
| 997 |
|
| 998 |
// Alto m?ximo (no hay l?mite)
|
| 999 |
final static int MAX_HEIGHT = 1536; |
| 1000 |
Point pos;
|
| 1001 |
Extent v; |
| 1002 |
int width;
|
| 1003 |
int height;
|
| 1004 |
boolean mustResize = false; |
| 1005 |
|
| 1006 |
public ChunkFrame(Extent vista, int w, int h) { |
| 1007 |
v = vista; |
| 1008 |
width = w; |
| 1009 |
height = h; |
| 1010 |
} |
| 1011 |
|
| 1012 |
/**
|
| 1013 |
* Calcula el array de chunks (trozos).
|
| 1014 |
* @param file Fichero ecw que hay que trocear.
|
| 1015 |
* @param v Extent total de la vista.
|
| 1016 |
* @param sz Tama?o total de la vista.
|
| 1017 |
* @return array de ChunkFrames.
|
| 1018 |
* @throws JNCSFileNotOpenException
|
| 1019 |
*/
|
| 1020 |
public static ChunkFrame[] computeFrames(JNCSFile file, Extent v, |
| 1021 |
Dimension sz, Extent extent)
|
| 1022 |
throws JNCSFileNotOpenException {
|
| 1023 |
ChunkFrame[] frames = null; |
| 1024 |
ChunkFrame f = null;
|
| 1025 |
|
| 1026 |
// Calcula el n? de chunks (filas y columnas)
|
| 1027 |
int numCol = (sz.width / MAX_WIDTH);
|
| 1028 |
|
| 1029 |
// Calcula el n? de chunks (filas y columnas)
|
| 1030 |
int numRow = (sz.height / MAX_HEIGHT);
|
| 1031 |
|
| 1032 |
if ((sz.width - (numCol * MAX_WIDTH)) > 0) { |
| 1033 |
numCol++; |
| 1034 |
} |
| 1035 |
|
| 1036 |
if ((sz.height - (numRow * MAX_HEIGHT)) > 0) { |
| 1037 |
numRow++; |
| 1038 |
} |
| 1039 |
|
| 1040 |
frames = new ChunkFrame[numCol * numRow];
|
| 1041 |
|
| 1042 |
JNCSDatasetPoint ptMin = file.convertWorldToDataset(v.minX(), v.minY()); |
| 1043 |
JNCSDatasetPoint ptMax = file.convertWorldToDataset(v.maxX(), v.maxY()); |
| 1044 |
|
| 1045 |
//No utilizamos JNCSDatasetPoint porque siempre hace un redondeo por abajo con lo que perdemos precisi?n. En su lugar
|
| 1046 |
//utilizamos currentViewM... calculado manualmente y que nos proporciona todos los decimales
|
| 1047 |
double currentViewMinX = (((double) file.width)/(Math.abs(extent.getMax().getX() - extent.getMin().getX())))*(v.minX()-file.originX); |
| 1048 |
double currentViewMaxX = (((double) file.width)/(Math.abs(extent.getMax().getX() - extent.getMin().getX())))*(v.maxX()-file.originX); |
| 1049 |
double currentViewMinY = (((double) file.height)/(Math.abs(extent.getMax().getY() - extent.getMin().getY())))*(file.originY - v.minY()); |
| 1050 |
double currentViewMaxY = (((double) file.height)/(Math.abs(extent.getMax().getY() - extent.getMin().getY())))*(file.originY - v.maxY()); |
| 1051 |
|
| 1052 |
if ((ptMax.x - ptMin.x) < sz.width) {
|
| 1053 |
numCol = numRow = 1;
|
| 1054 |
frames = new ChunkFrame[numCol * numRow];
|
| 1055 |
int nPixelsX = (int)Math.ceil(Math.abs(currentViewMaxX - currentViewMinX)); |
| 1056 |
int nPixelsY = (int)Math.ceil(Math.abs(currentViewMaxY - currentViewMinY)); |
| 1057 |
|
| 1058 |
if(v.minX() == extent.minX() || v.maxX() == extent.maxX() || v.minY() == extent.minY() || v.maxY() == extent.maxY()){
|
| 1059 |
f = frames[0] = new ChunkFrame(v, nPixelsX, nPixelsY); |
| 1060 |
f.v = new Extent(v);
|
| 1061 |
}else{
|
| 1062 |
f = frames[0] = new ChunkFrame(v, nPixelsX + 1, nPixelsY + 1); |
| 1063 |
double pointEndWcX = v.minX() + (((nPixelsX + 1) * Math.abs(v.maxX() - v.minX())) / nPixelsX); |
| 1064 |
double pointEndWcY = v.maxY() - (((nPixelsY + 1) * Math.abs(v.maxY() - v.minY())) / nPixelsY); |
| 1065 |
f.v = new Extent(v.minX(), v.maxY(), pointEndWcX, pointEndWcY);
|
| 1066 |
} |
| 1067 |
|
| 1068 |
f.pos = new Point(0, 0); |
| 1069 |
f.mustResize = true;
|
| 1070 |
} else {
|
| 1071 |
// Calcula cada chunk
|
| 1072 |
double stepx = ((double) ptMax.x - ptMin.x) / sz.getWidth(); |
| 1073 |
double stepy = ((double) ptMax.y - ptMin.y) / sz.getHeight(); |
| 1074 |
int h = sz.height;
|
| 1075 |
|
| 1076 |
for (int r = 0; r < numRow; r++) { |
| 1077 |
int w = sz.width;
|
| 1078 |
|
| 1079 |
for (int c = 0; c < numCol; c++) { |
| 1080 |
f = new ChunkFrame(null, -1, -1); |
| 1081 |
|
| 1082 |
// Posici?n del chunk
|
| 1083 |
f.pos = new Point(c * MAX_WIDTH, r * MAX_HEIGHT); |
| 1084 |
|
| 1085 |
// Tama?o del chunk
|
| 1086 |
f.width = Math.min(MAX_WIDTH, w);
|
| 1087 |
f.height = Math.min(MAX_HEIGHT, h);
|
| 1088 |
|
| 1089 |
// Extent del chunk
|
| 1090 |
int x1 = ptMin.x + (int) (f.pos.x * stepx); |
| 1091 |
int x2 = x1 + (int) (f.width * stepx); |
| 1092 |
int y1 = ptMax.y - (int) (f.pos.y * stepy); |
| 1093 |
int y2 = y1 - (int) (f.height * stepy); //ptMin.y; |
| 1094 |
JNCSWorldPoint pt1 = file.convertDatasetToWorld(x1, y1); |
| 1095 |
JNCSWorldPoint pt2 = file.convertDatasetToWorld(x2, y2); |
| 1096 |
|
| 1097 |
f.v = new Extent(pt1.x, pt1.y, pt2.x, pt2.y); // Hay que calcularlo |
| 1098 |
frames[(r * numCol) + c] = f; |
| 1099 |
w -= MAX_WIDTH; |
| 1100 |
} |
| 1101 |
|
| 1102 |
h -= MAX_HEIGHT; |
| 1103 |
} |
| 1104 |
} |
| 1105 |
|
| 1106 |
//System.out.println("Hay "+numRow+" filas y "+numCol+" columnas.");
|
| 1107 |
return frames;
|
| 1108 |
} |
| 1109 |
} |
| 1110 |
} |