gvsig-raster / org.gvsig.raster.cache / trunk / org.gvsig.raster.cache / org.gvsig.raster.cache.lib.impl / src / main / java / org / gvsig / raster / cache / tile / impl / provider / DefaultCacheStruct.java @ 952
History | View | Annotate | Download (16.1 KB)
| 1 |
/* gvSIG. Geographic Information System of the Valencian Government
|
|---|---|
| 2 |
*
|
| 3 |
* Copyright (C) 2007-2008 Infrastructures and Transports Department
|
| 4 |
* of the Valencian Government (CIT)
|
| 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., 51 Franklin Street, Fifth Floor, Boston,
|
| 19 |
* MA 02110-1301, USA.
|
| 20 |
*
|
| 21 |
*/
|
| 22 |
package org.gvsig.raster.cache.tile.impl.provider; |
| 23 |
|
| 24 |
import java.awt.geom.Point2D; |
| 25 |
import java.awt.geom.Rectangle2D; |
| 26 |
import java.util.ArrayList; |
| 27 |
|
| 28 |
import org.gvsig.raster.cache.tile.Tile; |
| 29 |
import org.gvsig.raster.cache.tile.TileCacheLocator; |
| 30 |
import org.gvsig.raster.cache.tile.disk.ITileFileSystemStrategy; |
| 31 |
import org.gvsig.raster.cache.tile.exception.TileBuildException; |
| 32 |
import org.gvsig.raster.cache.tile.impl.TileImpl; |
| 33 |
import org.gvsig.raster.cache.tile.provider.CacheStruct; |
| 34 |
|
| 35 |
/**
|
| 36 |
* Implementation for a structure of a cache
|
| 37 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
| 38 |
*/
|
| 39 |
public class DefaultCacheStruct implements CacheStruct { |
| 40 |
private TileMatrixSet tileMatrixSet = null; |
| 41 |
private ArrayList<TileMatrixLimits> limits = null; |
| 42 |
private String layerName = null; |
| 43 |
private String uri = null; |
| 44 |
private Rectangle2D worldExtent = null; |
| 45 |
private String fileSuffix = null; |
| 46 |
private String epsg = null; |
| 47 |
private long fileSize = 0; |
| 48 |
private double realPixelSize = 0; |
| 49 |
private Rectangle2D layerExtent = null; |
| 50 |
|
| 51 |
public DefaultCacheStruct(int typeOfCoords, |
| 52 |
int levels,
|
| 53 |
Rectangle2D layerExtent,
|
| 54 |
double pixelSize,
|
| 55 |
int tilePxWidth,
|
| 56 |
int tilePxHeight,
|
| 57 |
String uri,
|
| 58 |
String layerName,
|
| 59 |
ITileFileSystemStrategy strategy, |
| 60 |
String baseDir,
|
| 61 |
String fileSuffix,
|
| 62 |
String epsg,
|
| 63 |
long size) {
|
| 64 |
this.uri = uri;
|
| 65 |
this.layerName = layerName;
|
| 66 |
this.fileSuffix = fileSuffix;
|
| 67 |
this.fileSize = size;
|
| 68 |
this.realPixelSize = pixelSize;
|
| 69 |
this.layerExtent = layerExtent;
|
| 70 |
if(epsg != null && epsg.startsWith("EPSG:")) |
| 71 |
this.epsg = epsg;
|
| 72 |
|
| 73 |
//Coordenadas del mundo en geogr?ficas y planas
|
| 74 |
|
| 75 |
if(typeOfCoords == CacheStruct.GEOGRAFIC) {
|
| 76 |
worldExtent = new Rectangle2D.Double(-180, -90, 360, 180); |
| 77 |
} |
| 78 |
if(typeOfCoords == CacheStruct.FLAT) {
|
| 79 |
worldExtent = new Rectangle2D.Double(-20037508, -20037508, 40075016, 40075016); |
| 80 |
} |
| 81 |
|
| 82 |
double[] pixelSizeList = buildWorldMatrix(typeOfCoords, levels, tilePxWidth, tilePxHeight, worldExtent); |
| 83 |
buildLayerMatrix(levels, tilePxWidth, tilePxHeight, worldExtent, layerExtent, pixelSizeList, pixelSize); |
| 84 |
} |
| 85 |
|
| 86 |
private void buildLayerMatrix(int levels, |
| 87 |
int tilePxWidth,
|
| 88 |
int tilePxHeight,
|
| 89 |
Rectangle2D worldExtent,
|
| 90 |
Rectangle2D layerExtent,
|
| 91 |
double[] pixelSizeList, |
| 92 |
double maxPixelSize) {
|
| 93 |
limits = new ArrayList<TileMatrixLimits>(); |
| 94 |
|
| 95 |
for (int i = 0; i < levels; i++) { |
| 96 |
//Calculo de tiles para ese nivel en la capa actual
|
| 97 |
int minTileCol = (int)(Math.abs(layerExtent.getMinX() - worldExtent.getMinX()) / pixelSizeList[i]) / tilePxWidth; |
| 98 |
int minTileRow = (int)(Math.abs(layerExtent.getMaxY() - worldExtent.getMaxY()) / pixelSizeList[i]) / tilePxHeight; |
| 99 |
int maxTileCol = (int)(Math.abs(layerExtent.getMaxX() - worldExtent.getMinX()) / pixelSizeList[i]) / tilePxWidth; |
| 100 |
int maxTileRow = (int)(Math.abs(layerExtent.getMinY() - worldExtent.getMaxY()) / pixelSizeList[i]) / tilePxHeight; |
| 101 |
|
| 102 |
//int imageTileWidth = (int)Math.ceil((layerExtent.getWidth() / pixelSizeList[i]) / tilePxWidth);
|
| 103 |
//int imageTileHeight = (int)Math.ceil((layerExtent.getHeight() / pixelSizeList[i]) / tilePxHeight);
|
| 104 |
TileMatrixLimits limit = new TileMatrixLimits();
|
| 105 |
limit.setMinTileRow(minTileRow); |
| 106 |
limit.setMinTileCol(minTileCol); |
| 107 |
limit.setMaxTileRow(maxTileRow); |
| 108 |
limit.setMaxTileCol(maxTileCol); |
| 109 |
|
| 110 |
//Calcula las coordenadas de la esquina superior izquierda del TileMatrixLimits
|
| 111 |
double ulx = worldExtent.getMinX() + (minTileCol * tilePxWidth * pixelSizeList[i]);
|
| 112 |
double uly = worldExtent.getMaxY() - (minTileRow * tilePxHeight * pixelSizeList[i]);
|
| 113 |
limit.getTileMatrix().setTopLeftCorner(new double[]{ulx, uly}); |
| 114 |
limit.getTileMatrix().setScaleDenominator(pixelSizeList[i]); |
| 115 |
limit.getTileMatrix().setTileWidth(tilePxWidth); |
| 116 |
limit.getTileMatrix().setTileHeight(tilePxHeight); |
| 117 |
|
| 118 |
limits.add(limit); |
| 119 |
if(i == (levels - 1) || (maxPixelSize != Double.POSITIVE_INFINITY && maxPixelSize != Double.NEGATIVE_INFINITY && pixelSizeList[i] < maxPixelSize)) { |
| 120 |
//System.out.println("Image res:" + maxPixelSize + " Real res:" + pixelSizeList[i]);
|
| 121 |
break;
|
| 122 |
} |
| 123 |
} |
| 124 |
} |
| 125 |
|
| 126 |
private double[] buildWorldMatrix(int typeOfCoords, |
| 127 |
int levels,
|
| 128 |
int tilePxWidth,
|
| 129 |
int tilePxHeight,
|
| 130 |
Rectangle2D worldExtent) {
|
| 131 |
double[] pixelSizeList = new double[levels]; |
| 132 |
|
| 133 |
limits = new ArrayList<TileMatrixLimits>(); |
| 134 |
tileMatrixSet = new TileMatrixSet();
|
| 135 |
tileMatrixSet.setBbox(worldExtent); |
| 136 |
|
| 137 |
int nTilesWidth = 0; |
| 138 |
int nTilesHeight = 0; |
| 139 |
|
| 140 |
for (int i = 0; i < levels; i++) { |
| 141 |
TileMatrix tm = new TileMatrix();
|
| 142 |
tm.setTileWidth(tilePxWidth); |
| 143 |
tm.setTileHeight(tilePxHeight); |
| 144 |
if(i == 0) { |
| 145 |
nTilesWidth = (typeOfCoords == CacheStruct.FLAT) ? 1 : 2; |
| 146 |
nTilesHeight = 1;
|
| 147 |
} else {
|
| 148 |
nTilesWidth *= 2;
|
| 149 |
nTilesHeight *= 2;
|
| 150 |
} |
| 151 |
|
| 152 |
tm.setMatrixWidth(nTilesWidth); |
| 153 |
tm.setMatrixHeight(nTilesHeight); |
| 154 |
if((tilePxWidth * nTilesWidth) != 0) |
| 155 |
pixelSizeList[i] = worldExtent.getWidth() / ((long)tilePxWidth * (long)nTilesWidth); |
| 156 |
else
|
| 157 |
pixelSizeList[i] = 0;
|
| 158 |
//System.out.println("-Level:" + i + " " + nTilesWidth + " " + nTilesHeight + " " + pixelSizeList[i]);
|
| 159 |
tm.setScaleDenominator(pixelSizeList[i]); |
| 160 |
tileMatrixSet.getTileMatrix().add(tm); |
| 161 |
} |
| 162 |
return pixelSizeList;
|
| 163 |
} |
| 164 |
|
| 165 |
/*
|
| 166 |
* (non-Javadoc)
|
| 167 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getNumberOfLevels()
|
| 168 |
*/
|
| 169 |
public int getNumberOfLevels() { |
| 170 |
return tileMatrixSet.getTileMatrix().size();
|
| 171 |
} |
| 172 |
|
| 173 |
/*
|
| 174 |
* (non-Javadoc)
|
| 175 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerName()
|
| 176 |
*/
|
| 177 |
public String getLayerName() { |
| 178 |
return layerName;
|
| 179 |
} |
| 180 |
|
| 181 |
/*
|
| 182 |
* (non-Javadoc)
|
| 183 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getServerURL()
|
| 184 |
*/
|
| 185 |
public String getServerURL() { |
| 186 |
return uri;
|
| 187 |
} |
| 188 |
|
| 189 |
/*
|
| 190 |
* (non-Javadoc)
|
| 191 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getFileSuffix()
|
| 192 |
*/
|
| 193 |
public String getFileSuffix() { |
| 194 |
return fileSuffix;
|
| 195 |
} |
| 196 |
|
| 197 |
/*
|
| 198 |
* (non-Javadoc)
|
| 199 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileSizeByLevel(int)
|
| 200 |
*/
|
| 201 |
public int[] getTileSizeByLevel(int level) { |
| 202 |
return new int[] { |
| 203 |
tileMatrixSet.getTileMatrix().get(level).getTileWidth(), |
| 204 |
tileMatrixSet.getTileMatrix().get(level).getTileHeight() |
| 205 |
}; |
| 206 |
} |
| 207 |
|
| 208 |
/*
|
| 209 |
* (non-Javadoc)
|
| 210 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileSizeInRealCoordsByLevel(int)
|
| 211 |
*/
|
| 212 |
public double[] getTileSizeInRealCoordsByLevel(int level) { |
| 213 |
return new double[] { |
| 214 |
getPixelSizeByLevel(level) * tileMatrixSet.getTileMatrix().get(level).getTileWidth(), |
| 215 |
getPixelSizeByLevel(level) * tileMatrixSet.getTileMatrix().get(level).getTileHeight() |
| 216 |
}; |
| 217 |
} |
| 218 |
|
| 219 |
/*
|
| 220 |
* (non-Javadoc)
|
| 221 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerWidthOfTileMatrixByLevel(int)
|
| 222 |
*/
|
| 223 |
public int getLayerWidthOfTileMatrixByLevel(int level) { |
| 224 |
TileMatrixLimits l = limits.get(level); |
| 225 |
return l.getMaxTileRow() - l.getMinTileRow();
|
| 226 |
} |
| 227 |
|
| 228 |
/*
|
| 229 |
* (non-Javadoc)
|
| 230 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerHeightOfTileMatrixByLevel(int)
|
| 231 |
*/
|
| 232 |
public int getLayerHeightOfTileMatrixByLevel(int level) { |
| 233 |
TileMatrixLimits l = limits.get(level); |
| 234 |
return l.getMaxTileCol() - l.getMinTileCol();
|
| 235 |
} |
| 236 |
|
| 237 |
/*
|
| 238 |
* (non-Javadoc)
|
| 239 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerInitXTilePositionByLevel(int)
|
| 240 |
*/
|
| 241 |
public int getLayerInitXTilePositionByLevel(int level) { |
| 242 |
TileMatrixLimits l = limits.get(level); |
| 243 |
return l.getMinTileCol();
|
| 244 |
} |
| 245 |
|
| 246 |
/*
|
| 247 |
* (non-Javadoc)
|
| 248 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getLayerInitYTilePositionByLevel(int)
|
| 249 |
*/
|
| 250 |
public int getLayerInitYTilePositionByLevel(int level) { |
| 251 |
TileMatrixLimits l = limits.get(level); |
| 252 |
return l.getMinTileRow();
|
| 253 |
} |
| 254 |
|
| 255 |
/*
|
| 256 |
* (non-Javadoc)
|
| 257 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getWorldHeightOfTileMatrixByLevel(int)
|
| 258 |
*/
|
| 259 |
public long getWorldHeightOfTileMatrixByLevel(int level) { |
| 260 |
return tileMatrixSet.getTileMatrix().get(level).getMatrixWidth();
|
| 261 |
} |
| 262 |
|
| 263 |
/*
|
| 264 |
* (non-Javadoc)
|
| 265 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getWorldWidthOfTileMatrixByLevel(int)
|
| 266 |
*/
|
| 267 |
public long getWorldWidthOfTileMatrixByLevel(int level) { |
| 268 |
return tileMatrixSet.getTileMatrix().get(level).getMatrixHeight();
|
| 269 |
} |
| 270 |
|
| 271 |
/*
|
| 272 |
* (non-Javadoc)
|
| 273 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getPixelSizeByLevel(int)
|
| 274 |
*/
|
| 275 |
public double getPixelSizeByLevel(int level) { |
| 276 |
if(level < 0) |
| 277 |
return realPixelSize;
|
| 278 |
return tileMatrixSet.getTileMatrix().get(level).getScaleDenominator();
|
| 279 |
} |
| 280 |
|
| 281 |
/*
|
| 282 |
* (non-Javadoc)
|
| 283 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileExtent(org.gvsig.raster.cache.tile.Tile)
|
| 284 |
*/
|
| 285 |
public Point2D[] getTileExtent(Tile tile) { |
| 286 |
return limits.get(tile.getLevel()).getTileExtent(tile.getRow(), tile.getCol());
|
| 287 |
} |
| 288 |
|
| 289 |
/*
|
| 290 |
* (non-Javadoc)
|
| 291 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileExtent(int, int, int)
|
| 292 |
*/
|
| 293 |
public Point2D[] getTileExtent(int level, int col, int row) { |
| 294 |
return limits.get(level).getTileExtent(row, col);
|
| 295 |
} |
| 296 |
|
| 297 |
/*
|
| 298 |
* (non-Javadoc)
|
| 299 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileStructure(int, int, int, java.awt.geom.Point2D, java.awt.geom.Point2D)
|
| 300 |
*/
|
| 301 |
public Tile getTileStructure(int level, int tileCol, int tileRow, Point2D ul, Point2D lr) throws TileBuildException { |
| 302 |
int[] size = getTileSizeByLevel(level); |
| 303 |
Tile tile = TileCacheLocator.getManager().createTile(level, tileRow, tileCol); |
| 304 |
tile.setUl(ul); |
| 305 |
tile.setLr(lr); |
| 306 |
tile.setWidthPx(size[0]);
|
| 307 |
tile.setHeightPx(size[1]);
|
| 308 |
|
| 309 |
return tile;
|
| 310 |
} |
| 311 |
|
| 312 |
/*
|
| 313 |
* (non-Javadoc)
|
| 314 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileList(java.awt.geom.Rectangle2D)
|
| 315 |
*/
|
| 316 |
public ArrayList<Tile> getTileList(Rectangle2D r) { |
| 317 |
int tilePxWidth = tileMatrixSet.getTileMatrix().get(0).getTileWidth(); |
| 318 |
int tilePxHeight = tileMatrixSet.getTileMatrix().get(0).getTileHeight(); |
| 319 |
int minTileCol = (int)(r.getX() / tilePxWidth); |
| 320 |
int minTileRow = (int)(r.getY() / tilePxHeight); |
| 321 |
int maxTileCol = (int)((r.getX() + r.getWidth()) / tilePxWidth); |
| 322 |
int maxTileRow = (int)((r.getY() + r.getHeight()) / tilePxHeight); |
| 323 |
double tileWCWidth = tilePxWidth * realPixelSize;
|
| 324 |
double tileWCHeight = tilePxHeight * realPixelSize;
|
| 325 |
|
| 326 |
//Calculo de tiles con sus coordenadas
|
| 327 |
ArrayList<Tile> tileList = new ArrayList<Tile>(); |
| 328 |
for (int i = minTileRow; i <= maxTileRow; i++) { |
| 329 |
for (int j = minTileCol; j <= maxTileCol; j++) { |
| 330 |
Point2D ulTile = new Point2D.Double( |
| 331 |
layerExtent.getMinX() + (tileWCWidth * j), |
| 332 |
layerExtent.getMaxY() - (tileWCHeight * i)); |
| 333 |
Point2D lrTile = new Point2D.Double(ulTile.getX() + tileWCWidth, ulTile.getY() - tileWCHeight); |
| 334 |
Tile t = new TileImpl(tilePxWidth, tilePxHeight, i, j, ulTile, lrTile);
|
| 335 |
t.setLevel(-1);
|
| 336 |
int initTileX = tilePxWidth * j;
|
| 337 |
int initTileY = tilePxHeight * i;
|
| 338 |
Rectangle2D rTile = new Rectangle2D.Double(initTileX, initTileY, tilePxWidth, tilePxHeight); |
| 339 |
t.setCoordsPx(rTile); |
| 340 |
tileList.add(t); |
| 341 |
} |
| 342 |
} |
| 343 |
return tileList;
|
| 344 |
} |
| 345 |
|
| 346 |
/*
|
| 347 |
* (non-Javadoc)
|
| 348 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getTileList(java.awt.geom.Point2D, java.awt.geom.Point2D)
|
| 349 |
*/
|
| 350 |
public ArrayList<Tile> getTileList(Point2D ul, Point2D lr, double mtsPixelRequest) { |
| 351 |
//Selecci?n de nivel de resoluci?n
|
| 352 |
int tilePxWidth = 0; |
| 353 |
int tilePxHeight = 0; |
| 354 |
double tileWCWidth = 0; |
| 355 |
double tileWCHeight = 0; |
| 356 |
int level = 0; |
| 357 |
double mtsPixelLevel = 0; |
| 358 |
for (int i = 0; i < tileMatrixSet.getTileMatrix().size(); i++) { |
| 359 |
mtsPixelLevel = tileMatrixSet.getTileMatrix().get(i).getScaleDenominator(); |
| 360 |
if(mtsPixelRequest > mtsPixelLevel) {
|
| 361 |
level = Math.max(i, 0); |
| 362 |
//Se ajusta al m?ximo nivel disponible para esa capa
|
| 363 |
if(level > (limits.size() - 1)) { |
| 364 |
level = limits.size() - 1;
|
| 365 |
mtsPixelLevel = tileMatrixSet.getTileMatrix().get(level).getScaleDenominator(); |
| 366 |
} |
| 367 |
|
| 368 |
tilePxWidth = tileMatrixSet.getTileMatrix().get(level).getTileWidth(); |
| 369 |
tilePxHeight = tileMatrixSet.getTileMatrix().get(level).getTileHeight(); |
| 370 |
|
| 371 |
//mtsPixelLevel = tileMatrixSet.getTileMatrix().get(i - 1).getScaleDenominator();
|
| 372 |
tileWCWidth = tilePxWidth * mtsPixelLevel; |
| 373 |
tileWCHeight = tilePxHeight * mtsPixelLevel; |
| 374 |
break;
|
| 375 |
} |
| 376 |
} |
| 377 |
|
| 378 |
//Calculo del rectangulo de tiles
|
| 379 |
int minTileCol = (int)((Math.abs(ul.getX() - worldExtent.getMinX()) / mtsPixelLevel) / tilePxWidth); |
| 380 |
int minTileRow = (int)((Math.abs(ul.getY() - worldExtent.getMaxY()) / mtsPixelLevel) / tilePxHeight); |
| 381 |
double maxTC = ((Math.abs(lr.getX() - worldExtent.getMinX()) / mtsPixelLevel) / tilePxWidth); |
| 382 |
double maxTR = ((Math.abs(lr.getY() - worldExtent.getMaxY()) / mtsPixelLevel) / tilePxHeight); |
| 383 |
int maxTileCol = ((maxTC - ((int)maxTC)) == 0) ? (int)(maxTC - 1) : (int)maxTC; |
| 384 |
int maxTileRow = ((maxTR - ((int)maxTR)) == 0) ? (int)(maxTR - 1) : (int)maxTR; |
| 385 |
|
| 386 |
//Calculo de tiles con sus coordenadas
|
| 387 |
ArrayList<Tile> tileList = new ArrayList<Tile>(); |
| 388 |
for (int i = minTileRow; i <= maxTileRow; i++) { |
| 389 |
for (int j = minTileCol; j <= maxTileCol; j++) { |
| 390 |
Point2D ulTile = new Point2D.Double( |
| 391 |
worldExtent.getMinX() + (tileWCWidth * j), |
| 392 |
worldExtent.getMaxY() - (tileWCHeight * i)); |
| 393 |
Point2D lrTile = new Point2D.Double(ulTile.getX() + tileWCWidth, ulTile.getY() - tileWCHeight); |
| 394 |
Tile t = new TileImpl(tilePxWidth, tilePxHeight, i, j, ulTile, lrTile);
|
| 395 |
t.setLevel(level); |
| 396 |
tileList.add(t); |
| 397 |
} |
| 398 |
} |
| 399 |
return tileList;
|
| 400 |
} |
| 401 |
|
| 402 |
/*
|
| 403 |
* (non-Javadoc)
|
| 404 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#compare(org.gvsig.raster.cache.tile.provider.CacheStruct)
|
| 405 |
*/
|
| 406 |
public boolean compare(CacheStruct struct) { |
| 407 |
//Compara: n?mero de niveles, tama?o de tile,
|
| 408 |
//anchoXalto de la matriz, tama?o de pixel por nivel,
|
| 409 |
//coordenadas de al menos un tile de la matriz
|
| 410 |
if(struct.getNumberOfLevels() == getNumberOfLevels()) {
|
| 411 |
for (int i = 0; i < getNumberOfLevels(); i++) { |
| 412 |
if( struct.getTileSizeByLevel(i)[0] == getTileSizeByLevel(i)[0] && |
| 413 |
struct.getTileSizeByLevel(i)[1] == getTileSizeByLevel(i)[1] && |
| 414 |
struct.getWorldHeightOfTileMatrixByLevel(i) == getWorldHeightOfTileMatrixByLevel(i) && |
| 415 |
struct.getWorldWidthOfTileMatrixByLevel(i) == getWorldWidthOfTileMatrixByLevel(i) && |
| 416 |
clipDecimals(struct.getPixelSizeByLevel(i), 2) == clipDecimals(getPixelSizeByLevel(i), 2) && |
| 417 |
compareExtents(struct.getTileExtent(i, 0, 0), getTileExtent(i, 0, 0))) { |
| 418 |
return true; |
| 419 |
} |
| 420 |
} |
| 421 |
} |
| 422 |
return false; |
| 423 |
} |
| 424 |
|
| 425 |
/*
|
| 426 |
* (non-Javadoc)
|
| 427 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getEPSG()
|
| 428 |
*/
|
| 429 |
public String getEPSG() { |
| 430 |
return epsg;
|
| 431 |
} |
| 432 |
|
| 433 |
/*
|
| 434 |
* (non-Javadoc)
|
| 435 |
* @see org.gvsig.raster.cache.tile.provider.CacheStruct#getFileSize()
|
| 436 |
*/
|
| 437 |
public String getFileSize() { |
| 438 |
return fileSize + ""; |
| 439 |
} |
| 440 |
|
| 441 |
private boolean compareExtents(Point2D[] p, Point2D[] p1) { |
| 442 |
return (p[0].getX() == p1[0].getX() && p[0].getY() == p1[0].getY() && |
| 443 |
p[1].getX() == p1[1].getX() && p[1].getY() == p1[1].getY()); |
| 444 |
} |
| 445 |
|
| 446 |
public double clipDecimals(double num, int n) { |
| 447 |
long m = (long) Math.pow(10, n); |
| 448 |
long aux = Math.round(num * m); |
| 449 |
return (double) aux / (double) m; |
| 450 |
} |
| 451 |
|
| 452 |
} |