svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libRaster / src / org / gvsig / raster / grid / Grid.java @ 30008
History | View | Annotate | Download (38.6 KB)
| 1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
|---|---|
| 2 |
*
|
| 3 |
* Copyright (C) 2006 IVER T.I. and Generalitat Valenciana.
|
| 4 |
*
|
| 5 |
* This program is free software; you can redistribute it and/or
|
| 6 |
* modify it under the terms of the GNU General Public License
|
| 7 |
* as published by the Free Software Foundation; either version 2
|
| 8 |
* of the License, or (at your option) any later version.
|
| 9 |
*
|
| 10 |
* This program is distributed in the hope that it will be useful,
|
| 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
| 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
| 13 |
* GNU General Public License for more details.
|
| 14 |
*
|
| 15 |
* You should have received a copy of the GNU General Public License
|
| 16 |
* along with this program; if not, write to the Free Software
|
| 17 |
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
|
| 18 |
*/
|
| 19 |
package org.gvsig.raster.grid; |
| 20 |
|
| 21 |
import java.io.IOException; |
| 22 |
import java.util.Arrays; |
| 23 |
|
| 24 |
import org.gvsig.raster.buffer.BufferFactory; |
| 25 |
import org.gvsig.raster.buffer.RasterBuffer; |
| 26 |
import org.gvsig.raster.buffer.RasterBufferInvalidAccessException; |
| 27 |
import org.gvsig.raster.buffer.RasterBufferInvalidException; |
| 28 |
import org.gvsig.raster.dataset.IBuffer; |
| 29 |
import org.gvsig.raster.dataset.IRasterDataSource; |
| 30 |
import org.gvsig.raster.datastruct.Extent; |
| 31 |
import org.gvsig.raster.datastruct.Transparency; |
| 32 |
import org.gvsig.raster.grid.filter.RasterFilterList; |
| 33 |
|
| 34 |
/**
|
| 35 |
* Clase que representa una rejilla de datos raster. Este tipo de grid tiene el interfaz necesario
|
| 36 |
* de acceso a la informaci?n raster para aplicaciones de analisis raster. Contiene m?todos de acceso al
|
| 37 |
* dato tanto en lectura como en escritura y encapsula operaciones entre grids. Adem?s contiene
|
| 38 |
* objetos que contienen las caracter?sticas asociadas a ese grid. Sobre un grid pueden
|
| 39 |
* aplicarse tambi?n operaciones de filtrado.
|
| 40 |
*
|
| 41 |
* Podemos crear un Grid de cinco formas distitas:
|
| 42 |
* <UL>
|
| 43 |
* <LI>A partir de una fuente de datos (cargada en el constructor). Se har? una petici?n del extent pasado por par?metro con las bandas seleccionadas por par?metro.</LI>
|
| 44 |
* <LI>A partir de un extensi?n de capa, una extensi?n de vista, un tipo de dato y un n?mero de datos
|
| 45 |
* crea un Grid vacio util para escritura.</LI>
|
| 46 |
* <LI>A partir de una fuente de datos (cargados). Datasource se usa como buffer de datos cargados y se selecciona si queremos el reader interpolado.</LI>
|
| 47 |
* <LI>A partir de una fuente de datos (cargada en el constructor). Se har? una petici?n del extent completo de la fuente con las bandas seleccionadas por par?metro.</LI>
|
| 48 |
* <LI>A partir de una fuente de datos (cargada en el constructor). Se har? una petici?n del extent completo de la fuente con todas las bandas disponibles.</LI>
|
| 49 |
* </UL>
|
| 50 |
*
|
| 51 |
* @author Victor Olaya (volaya@ya.com)
|
| 52 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
| 53 |
*/
|
| 54 |
public class Grid implements IQueryableGrid, IWritableGrid{ |
| 55 |
|
| 56 |
public final static double DEG_45_IN_RAD = Math.PI / 180. * 45.; |
| 57 |
public final static double DEG_90_IN_RAD = Math.PI / 180. * 90.; |
| 58 |
public final static double DEG_180_IN_RAD = Math.PI ; |
| 59 |
public final static double DEG_270_IN_RAD = Math.PI / 180. * 270.; |
| 60 |
public final static double DEG_360_IN_RAD = Math.PI * 2.; |
| 61 |
|
| 62 |
/* neighbor's address*/ /* N NE E SE S SW W NW */ |
| 63 |
private final static int m_iOffsetX []= { 0, 1, 1, 1, 0, -1, -1, -1}; |
| 64 |
private final static int m_iOffsetY []= { 1, 1, 0, -1, -1, -1, 0, 1}; |
| 65 |
|
| 66 |
private double m_dDist[]; |
| 67 |
public double _2DX, _6DX, _DX_2, _4DX_2; |
| 68 |
|
| 69 |
private int[] bands = null; |
| 70 |
private int dataType = IBuffer.TYPE_UNDEFINED; |
| 71 |
|
| 72 |
private RasterBuffer rasterBuf = null; |
| 73 |
private GridReader reader = null; |
| 74 |
private GridWriter writer = null; |
| 75 |
private GridExtent windowExtent = null; |
| 76 |
private GridExtent layerExtent = null; |
| 77 |
private GridStatistic statistic = null; |
| 78 |
private GridPalette[] palette = null; |
| 79 |
private RasterFilterList filterList = null; |
| 80 |
|
| 81 |
|
| 82 |
|
| 83 |
/**
|
| 84 |
* Crea un grid a partir de un MultiRasterDataset. Usa el extent de la fuente de datos como
|
| 85 |
* extent completo y el extent pasado como par?metro como extensi?n de ventana.
|
| 86 |
*
|
| 87 |
* Cuando se construye el reader se carga el buffer con la extensi?n definida en windowExtent
|
| 88 |
* y las bandas especificadas en bands.
|
| 89 |
*
|
| 90 |
* @param IRasterDataSource datasets que proporcionan los datos
|
| 91 |
* @param bands n?mero de bandas requeridas
|
| 92 |
* @param windowExtent Extensi?n de la ventana. Si este par?metro es null se usar? el
|
| 93 |
* mismo que el de la capa.
|
| 94 |
*/
|
| 95 |
public Grid(IRasterDataSource datasets, int[] bands, GridExtent windowExtent) |
| 96 |
throws RasterBufferInvalidException{
|
| 97 |
BufferFactory bufferFactory = new BufferFactory(datasets);
|
| 98 |
double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(), |
| 99 |
bufferFactory.getSourceHeight()); |
| 100 |
layerExtent = new GridExtent( bufferFactory.getDataSource().getExtent(),
|
| 101 |
cellSize[0],
|
| 102 |
cellSize[1]);
|
| 103 |
if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null) |
| 104 |
dataType = bufferFactory.getDataSource().getDataType()[0];
|
| 105 |
this.bands = bands;
|
| 106 |
|
| 107 |
if(windowExtent == null) |
| 108 |
this.windowExtent = layerExtent;
|
| 109 |
else
|
| 110 |
this.windowExtent = windowExtent;
|
| 111 |
|
| 112 |
if (this.windowExtent.fitsIn(layerExtent)) |
| 113 |
reader = new GridNotInterpolated(bufferFactory, layerExtent, this.windowExtent, bands); |
| 114 |
else
|
| 115 |
reader = new GridInterpolated(bufferFactory, layerExtent, this.windowExtent, bands); |
| 116 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
| 117 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
| 118 |
|
| 119 |
init(bufferFactory); |
| 120 |
} |
| 121 |
|
| 122 |
/**
|
| 123 |
* Carga el buffer de datos desde el reader para poder escribir sobre los datos de
|
| 124 |
* la ventana original. Esto es ?til cuando el GridWriter se crea asociado a un raster
|
| 125 |
* pero el buffer est? vacio, por ejemplo en el caso de crear un GridInterpolated. Un
|
| 126 |
* GridInterpolated no carga ning?n buffer en memoria sino que accede a los datos en disco
|
| 127 |
* a medida que se le van solicitando. Por ello, no es posible modificarlos sino cargamos
|
| 128 |
* un buffer con los datos previamente.
|
| 129 |
*/
|
| 130 |
public void loadWriterData() throws GridException { |
| 131 |
rasterBuf = RasterBuffer.getBuffer(dataType, reader.getNX(), reader.getNY(), bands.length, true);
|
| 132 |
writer = new GridWriter(windowExtent, dataType, rasterBuf);
|
| 133 |
int x = 0, y = 0; |
| 134 |
try{
|
| 135 |
switch(rasterBuf.getDataType()) {
|
| 136 |
case IBuffer.TYPE_BYTE: for (x = 0; x < getNX(); x++) |
| 137 |
for (y = 0; y < getNY(); y++) |
| 138 |
writer.setCellValue(x, y, (reader.getCellValueAsByte(x, y))); |
| 139 |
break;
|
| 140 |
case IBuffer.TYPE_SHORT:for (x = 0; x < getNX(); x++) |
| 141 |
for (y = 0; y < getNY(); y++) |
| 142 |
writer.setCellValue(x, y, (reader.getCellValueAsShort(x, y))); |
| 143 |
break;
|
| 144 |
case IBuffer.TYPE_INT: for (x = 0; x < getNX(); x++) |
| 145 |
for (y = 0; y < getNY(); y++) |
| 146 |
writer.setCellValue(x, y, (reader.getCellValueAsInt(x, y))); |
| 147 |
break;
|
| 148 |
case IBuffer.TYPE_FLOAT:for (x = 0; x < getNX(); x++) |
| 149 |
for (y = 0; y < getNY(); y++) |
| 150 |
writer.setCellValue(x, y, (reader.getCellValueAsFloat(x, y))); |
| 151 |
break;
|
| 152 |
case IBuffer.TYPE_DOUBLE:for (x = 0; x < getNX(); x++) |
| 153 |
for (y = 0; y < getNY(); y++) |
| 154 |
writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y))); |
| 155 |
break;
|
| 156 |
} |
| 157 |
} catch (RasterBufferInvalidException e) {
|
| 158 |
throw new GridException("Buffer de datos no v?lido " + x + " " + y, e); |
| 159 |
} catch (OutOfGridException e1) {
|
| 160 |
throw new GridException("Acceso fuera de los l?mites del Grid " + x + " " + y, e1); |
| 161 |
} catch (RasterBufferInvalidAccessException e) {
|
| 162 |
throw new GridException("Acceso al grid no v?lido " + x + " " + y, e); |
| 163 |
} |
| 164 |
} |
| 165 |
|
| 166 |
/**
|
| 167 |
* Crea un grid vacio a partir de un extent y un tipo de datos. Se crea un buffer vacio en el
|
| 168 |
* que puede escribirse a trav?s del writer. Los datos escritos pueden ser consultados con el
|
| 169 |
* reader. No tiene una fuente de datos asociada ya que es un grid vacio basicamente para
|
| 170 |
* escritura.
|
| 171 |
* @param layerExtent Tama?o completo de la capa
|
| 172 |
* @param windowExtent Ventana de datos.
|
| 173 |
* @param dataType Tipo de datos del buffer
|
| 174 |
* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
|
| 175 |
*/
|
| 176 |
public Grid(GridExtent layerExtent,
|
| 177 |
GridExtent windowExtent, |
| 178 |
int dataType,
|
| 179 |
int[] bands) throws RasterBufferInvalidException{ |
| 180 |
this.windowExtent = windowExtent;
|
| 181 |
this.layerExtent = layerExtent;
|
| 182 |
this.dataType = dataType;
|
| 183 |
|
| 184 |
rasterBuf = RasterBuffer.getBuffer(dataType, layerExtent.getNX(), layerExtent.getNY(), bands.length, true);
|
| 185 |
|
| 186 |
if (windowExtent.fitsIn(layerExtent))
|
| 187 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 188 |
else
|
| 189 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 190 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
| 191 |
init(null);
|
| 192 |
} |
| 193 |
|
| 194 |
/**
|
| 195 |
* Crea un grid a partir de un BufferFactory. El buffer debe estar cargado de datos y el extent
|
| 196 |
* de este viene definido en el par?metro windowExtent.
|
| 197 |
* @param bufferFactory Fuente de datos
|
| 198 |
* @param windowExtent Extent de los datos cargados en bufferFactory
|
| 199 |
* @param notInterp Si es true fuerza a que el reader sea sin interpolaci?n. Si es false decide si
|
| 200 |
* el reader es interpolado o no a partir de los extents de capa y la ventana seleccionada.
|
| 201 |
*/
|
| 202 |
public Grid(BufferFactory bufferFactory, boolean notInterp) { |
| 203 |
double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(), |
| 204 |
bufferFactory.getSourceHeight()); |
| 205 |
this.layerExtent = new GridExtent( bufferFactory.getDataSource().getExtent(), |
| 206 |
cellSize[0],
|
| 207 |
cellSize[1]);
|
| 208 |
if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null) |
| 209 |
dataType = bufferFactory.getDataSource().getDataType()[0];
|
| 210 |
bands = bufferFactory.getDrawableBands(); |
| 211 |
|
| 212 |
this.windowExtent = new GridExtent( bufferFactory.getDataExtent(), |
| 213 |
cellSize[0],
|
| 214 |
cellSize[1]);
|
| 215 |
|
| 216 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
| 217 |
|
| 218 |
if(notInterp)
|
| 219 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 220 |
else if (windowExtent.fitsIn(layerExtent)) |
| 221 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 222 |
else
|
| 223 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 224 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
| 225 |
init(bufferFactory); |
| 226 |
} |
| 227 |
|
| 228 |
/**
|
| 229 |
* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
|
| 230 |
* bufferFactory tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
|
| 231 |
* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo.
|
| 232 |
* @param bufferFactory Fuente de datos
|
| 233 |
* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
|
| 234 |
*/
|
| 235 |
public Grid(BufferFactory bufferFactory, int[] bands) |
| 236 |
throws RasterBufferInvalidException{
|
| 237 |
//La petici?n es del raster completo
|
| 238 |
double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(), |
| 239 |
bufferFactory.getSourceHeight()); |
| 240 |
windowExtent = layerExtent = new GridExtent(bufferFactory.getDataSource().getExtent(),
|
| 241 |
cellSize[0],
|
| 242 |
cellSize[1]);
|
| 243 |
if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null) |
| 244 |
dataType = bufferFactory.getDataSource().getDataType()[0];
|
| 245 |
this.bands = bands;
|
| 246 |
|
| 247 |
reader = new GridNotInterpolated(bufferFactory, layerExtent, windowExtent, bands);
|
| 248 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
| 249 |
writer = new GridWriter(windowExtent, dataType, rasterBuf);
|
| 250 |
|
| 251 |
init(bufferFactory); |
| 252 |
} |
| 253 |
|
| 254 |
/**
|
| 255 |
* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
|
| 256 |
* bufferFactory tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
|
| 257 |
* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo. El buffer se cargar?
|
| 258 |
* con todas las bandas disponibles.
|
| 259 |
* @param bufferFactory Fuente de datos
|
| 260 |
*/
|
| 261 |
public Grid(BufferFactory bufferFactory) throws RasterBufferInvalidException { |
| 262 |
//La petici?n es del raster completo
|
| 263 |
double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(), |
| 264 |
bufferFactory.getSourceHeight()); |
| 265 |
windowExtent = layerExtent = new GridExtent(bufferFactory.getDataSource().getExtent(),
|
| 266 |
cellSize[0],
|
| 267 |
cellSize[1]);
|
| 268 |
if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null) |
| 269 |
dataType = bufferFactory.getDataSource().getDataType()[0];
|
| 270 |
|
| 271 |
bands = new int[bufferFactory.getBandCount()]; |
| 272 |
for(int i = 0; i < bufferFactory.getBandCount(); i ++) |
| 273 |
bands[i] = i; |
| 274 |
reader = new GridNotInterpolated(bufferFactory, layerExtent, windowExtent, bands);
|
| 275 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
| 276 |
writer = new GridWriter(windowExtent, dataType, rasterBuf);
|
| 277 |
|
| 278 |
init(bufferFactory); |
| 279 |
} |
| 280 |
|
| 281 |
/**
|
| 282 |
* Calcula el tama?o de celda a partir de un dataset, un ancho y un alto en pixeles
|
| 283 |
* @return
|
| 284 |
*/
|
| 285 |
private double[] calcCellSize(IRasterDataSource mDataset, double w, double h) { |
| 286 |
double dCellsize[] = new double[2]; |
| 287 |
try {
|
| 288 |
Extent e = mDataset.getExtent(); |
| 289 |
dCellsize[0] = (e.getLRX() - e.getULX()) / w;
|
| 290 |
dCellsize[1] = (e.getLRY() - e.getULY()) / h;
|
| 291 |
|
| 292 |
return dCellsize;
|
| 293 |
} catch (NullPointerException e) { |
| 294 |
dCellsize[0] = 1; |
| 295 |
dCellsize[1] = 1; |
| 296 |
return dCellsize;
|
| 297 |
} |
| 298 |
} |
| 299 |
|
| 300 |
/**
|
| 301 |
* Selecciona la forma de obtener datos con o sin interpolaci?n. Si pasamos el par?metro
|
| 302 |
* false al aplicar un m?todo de consulta de datos este ser? aplicado sin interpolaci?n.
|
| 303 |
* @param interpolation
|
| 304 |
*/
|
| 305 |
public void switchToInterpolationMethod(boolean interpolation){ |
| 306 |
//GridExtent layer = new GridExtent(0, 0, rasterBuf.getWidth(), rasterBuf.getHeight(), 1);
|
| 307 |
if(interpolation)
|
| 308 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 309 |
else
|
| 310 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 311 |
init(null);
|
| 312 |
} |
| 313 |
|
| 314 |
/**
|
| 315 |
* Inicializaci?n de constantes
|
| 316 |
*/
|
| 317 |
private void init(BufferFactory ds) { |
| 318 |
int i;
|
| 319 |
GridTransparency transparency = null;
|
| 320 |
|
| 321 |
double dCellSize = getCellSize();
|
| 322 |
|
| 323 |
statistic = new GridStatistic(this); |
| 324 |
if (ds == null) |
| 325 |
transparency = new GridTransparency();
|
| 326 |
else {
|
| 327 |
Transparency transp = ds.getDataSource().getTransparencyFilesStatus();
|
| 328 |
if (transp != null) |
| 329 |
transparency = new GridTransparency(transp);
|
| 330 |
this.palette = new GridPalette[ds.getColorTables().length]; |
| 331 |
for (int iPal = 0; iPal < ds.getColorTables().length; iPal++) |
| 332 |
if (ds.getColorTables()[iPal] != null) |
| 333 |
this.palette[iPal] = new GridPalette(ds.getColorTables()[iPal]); |
| 334 |
} |
| 335 |
filterList = new RasterFilterList();
|
| 336 |
if (ds != null) { |
| 337 |
filterList.addEnvParam("IStatistics", ds.getDataSource().getStatistics());
|
| 338 |
filterList.addEnvParam("MultiRasterDataset", ds.getDataSource());
|
| 339 |
} |
| 340 |
filterList.addEnvParam("Transparency", transparency);
|
| 341 |
if(rasterBuf != null) |
| 342 |
filterList.setInitRasterBuf(rasterBuf); |
| 343 |
|
| 344 |
m_dDist = new double[8]; |
| 345 |
|
| 346 |
for (i = 0; i < 8; i++) |
| 347 |
m_dDist[i] = Math.sqrt ( m_iOffsetX[i] * dCellSize * m_iOffsetX[i] * dCellSize
|
| 348 |
+ m_iOffsetY[i] * dCellSize * m_iOffsetY[i] * dCellSize ); |
| 349 |
|
| 350 |
_2DX = dCellSize * 2.0;
|
| 351 |
_6DX = dCellSize * 6.0;
|
| 352 |
_DX_2 = dCellSize * dCellSize; |
| 353 |
_4DX_2 = 4.0 * _DX_2;
|
| 354 |
} |
| 355 |
|
| 356 |
//************* Write Services *********************
|
| 357 |
|
| 358 |
/*
|
| 359 |
* (non-Javadoc)
|
| 360 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(byte)
|
| 361 |
*/
|
| 362 |
public void assign(byte value)throws GridException { |
| 363 |
try {
|
| 364 |
writer.assign(value); |
| 365 |
} catch (RasterBufferInvalidAccessException e) {
|
| 366 |
throw new GridException("Error wrinting buffer"); |
| 367 |
} |
| 368 |
} |
| 369 |
|
| 370 |
/*
|
| 371 |
* (non-Javadoc)
|
| 372 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(short)
|
| 373 |
*/
|
| 374 |
public void assign(short value)throws GridException { |
| 375 |
try {
|
| 376 |
writer.assign(value); |
| 377 |
} catch (RasterBufferInvalidAccessException e) {
|
| 378 |
throw new GridException("Error wrinting buffer"); |
| 379 |
} |
| 380 |
} |
| 381 |
|
| 382 |
/*
|
| 383 |
* (non-Javadoc)
|
| 384 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(int)
|
| 385 |
*/
|
| 386 |
public void assign(int value)throws GridException { |
| 387 |
try {
|
| 388 |
writer.assign(value); |
| 389 |
} catch (RasterBufferInvalidAccessException e) {
|
| 390 |
throw new GridException("Error wrinting buffer"); |
| 391 |
} |
| 392 |
} |
| 393 |
|
| 394 |
/*
|
| 395 |
* (non-Javadoc)
|
| 396 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(float)
|
| 397 |
*/
|
| 398 |
public void assign(float value)throws GridException { |
| 399 |
try {
|
| 400 |
writer.assign(value); |
| 401 |
} catch (RasterBufferInvalidAccessException e) {
|
| 402 |
throw new GridException("Error wrinting buffer"); |
| 403 |
} |
| 404 |
} |
| 405 |
|
| 406 |
/*
|
| 407 |
* (non-Javadoc)
|
| 408 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(double)
|
| 409 |
*/
|
| 410 |
public void assign(double value)throws GridException { |
| 411 |
try {
|
| 412 |
writer.assign(value); |
| 413 |
} catch (RasterBufferInvalidAccessException e) {
|
| 414 |
throw new GridException("Error wrinting buffer"); |
| 415 |
} |
| 416 |
} |
| 417 |
|
| 418 |
/*
|
| 419 |
* (non-Javadoc)
|
| 420 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.dataaccess.BufferFactory)
|
| 421 |
*/
|
| 422 |
public void assign(BufferFactory bufferFactory) throws GridException { |
| 423 |
Grid window; |
| 424 |
try {
|
| 425 |
window = new Grid(bufferFactory.getDataSource(), bands, windowExtent);
|
| 426 |
write(window); |
| 427 |
writer.setNoDataValue(window.getNoDataValue()); |
| 428 |
} catch (RasterBufferInvalidException e) {
|
| 429 |
throw new GridException("Error writing buffer"); |
| 430 |
} |
| 431 |
} |
| 432 |
|
| 433 |
/*
|
| 434 |
* (non-Javadoc)
|
| 435 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.grid.Grid)
|
| 436 |
*/
|
| 437 |
public void assign(Grid driver) throws GridException { |
| 438 |
if (driver.getGridExtent().equals(layerExtent)){
|
| 439 |
write(driver); |
| 440 |
writer.setNoDataValue(driver.getNoDataValue()); |
| 441 |
} |
| 442 |
} |
| 443 |
|
| 444 |
/**
|
| 445 |
* Sobreescribe los datos del grid actual con los datos del grid pasado por par?metro
|
| 446 |
* @param g Grid desde donde se obtienen los datos
|
| 447 |
*/
|
| 448 |
private void write(Grid g) throws GridException { |
| 449 |
try{
|
| 450 |
switch(rasterBuf.getDataType()){
|
| 451 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) |
| 452 |
for (int y = 0; y < g.getNY(); y++) |
| 453 |
writer.setCellValue(x, y, g.getCellValueAsByte(x, y)); |
| 454 |
break;
|
| 455 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) |
| 456 |
for (int y = 0; y < g.getNY(); y++) |
| 457 |
writer.setCellValue(x, y, g.getCellValueAsShort(x, y)); |
| 458 |
break;
|
| 459 |
case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) |
| 460 |
for (int y = 0; y < g.getNY(); y++) |
| 461 |
writer.setCellValue(x, y, g.getCellValueAsInt(x, y)); |
| 462 |
break;
|
| 463 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) |
| 464 |
for (int y = 0; y < g.getNY(); y++) |
| 465 |
writer.setCellValue(x, y, g.getCellValueAsFloat(x, y)); |
| 466 |
break;
|
| 467 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) |
| 468 |
for (int y = 0; y < g.getNY(); y++) |
| 469 |
writer.setCellValue(x, y, g.getCellValueAsDouble(x, y)); |
| 470 |
break;
|
| 471 |
} |
| 472 |
} catch (OutOfGridException e) {
|
| 473 |
throw new GridException(""); |
| 474 |
} |
| 475 |
} |
| 476 |
|
| 477 |
/*
|
| 478 |
* (non-Javadoc)
|
| 479 |
* @see org.gvsig.fmap.grid.IWritableGrid#assignNoData()
|
| 480 |
*/
|
| 481 |
public void assignNoData(){ |
| 482 |
try {
|
| 483 |
switch(rasterBuf.getDataType()){
|
| 484 |
case IBuffer.TYPE_BYTE: writer.assign((byte)rasterBuf.getNoDataValue());break; |
| 485 |
case IBuffer.TYPE_SHORT: writer.assign((short)rasterBuf.getNoDataValue());break; |
| 486 |
case IBuffer.TYPE_INT: writer.assign((int)rasterBuf.getNoDataValue());break; |
| 487 |
case IBuffer.TYPE_FLOAT: writer.assign((float)rasterBuf.getNoDataValue());break; |
| 488 |
case IBuffer.TYPE_DOUBLE: writer.assign(rasterBuf.getNoDataValue());break; |
| 489 |
} |
| 490 |
} catch (RasterBufferInvalidAccessException e) {
|
| 491 |
//No hacemos nada. El tipo de dato al que se accede no es controlado por el usuario por lo
|
| 492 |
//que no le mandamos la excepci?n hacia arriba.
|
| 493 |
e.printStackTrace(); |
| 494 |
} |
| 495 |
} |
| 496 |
|
| 497 |
/*
|
| 498 |
* (non-Javadoc)
|
| 499 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, byte)
|
| 500 |
*/
|
| 501 |
public void setCellValue(int x, int y, byte value)throws OutOfGridException{ |
| 502 |
writer.setCellValue(x, y, value); |
| 503 |
} |
| 504 |
|
| 505 |
/*
|
| 506 |
* (non-Javadoc)
|
| 507 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, short)
|
| 508 |
*/
|
| 509 |
public void setCellValue(int x, int y, short value)throws OutOfGridException{ |
| 510 |
writer.setCellValue(x, y, value); |
| 511 |
} |
| 512 |
|
| 513 |
/*
|
| 514 |
* (non-Javadoc)
|
| 515 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, int)
|
| 516 |
*/
|
| 517 |
public void setCellValue(int x, int y, int value)throws OutOfGridException{ |
| 518 |
writer.setCellValue(x, y, value); |
| 519 |
} |
| 520 |
|
| 521 |
/*
|
| 522 |
* (non-Javadoc)
|
| 523 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, float)
|
| 524 |
*/
|
| 525 |
public void setCellValue(int x, int y, float value)throws OutOfGridException{ |
| 526 |
writer.setCellValue(x, y, value); |
| 527 |
} |
| 528 |
|
| 529 |
/*
|
| 530 |
* (non-Javadoc)
|
| 531 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, double)
|
| 532 |
*/
|
| 533 |
public void setCellValue(int x, int y, double value)throws OutOfGridException{ |
| 534 |
writer.setCellValue(x, y, value); |
| 535 |
} |
| 536 |
|
| 537 |
/*
|
| 538 |
* (non-Javadoc)
|
| 539 |
* @see org.gvsig.fmap.grid.IWritableGrid#add(org.gvsig.fmap.grid.Grid)
|
| 540 |
*/
|
| 541 |
public void add(Grid g) throws GridException { |
| 542 |
if (g.getGridExtent().equals(getGridExtent())) {
|
| 543 |
boolean interp = (reader instanceof GridInterpolated); |
| 544 |
switchToInterpolationMethod(false);
|
| 545 |
try{
|
| 546 |
switch(rasterBuf.getDataType()){
|
| 547 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) |
| 548 |
for (int y = 0; y < g.getNY(); y++) |
| 549 |
writer.setCellValue(x, y, reader.getCellValueAsByte(x, y) + g.getCellValueAsByte(x,y)); |
| 550 |
break;
|
| 551 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) |
| 552 |
for (int y = 0; y < g.getNY(); y++) |
| 553 |
writer.setCellValue(x, y, reader.getCellValueAsShort(x, y) + g.getCellValueAsShort(x,y)); |
| 554 |
break;
|
| 555 |
case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) |
| 556 |
for (int y = 0; y < g.getNY(); y++) |
| 557 |
writer.setCellValue(x, y, reader.getCellValueAsInt(x, y) + g.getCellValueAsInt(x,y)); |
| 558 |
break;
|
| 559 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) |
| 560 |
for (int y = 0; y < g.getNY(); y++) |
| 561 |
writer.setCellValue(x, y, reader.getCellValueAsFloat(x, y) + g.getCellValueAsFloat(x,y)); |
| 562 |
break;
|
| 563 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) |
| 564 |
for (int y = 0; y < g.getNY(); y++) |
| 565 |
writer.setCellValue(x, y, reader.getCellValueAsDouble(x, y) + g.getCellValueAsDouble(x,y)); |
| 566 |
break;
|
| 567 |
} |
| 568 |
} catch (OutOfGridException e) {
|
| 569 |
throw new GridException(""); |
| 570 |
} catch (RasterBufferInvalidAccessException e1) {
|
| 571 |
throw new GridException(""); |
| 572 |
} catch (RasterBufferInvalidException e) {
|
| 573 |
throw new GridException(""); |
| 574 |
} |
| 575 |
switchToInterpolationMethod(interp); |
| 576 |
} |
| 577 |
} |
| 578 |
|
| 579 |
/*
|
| 580 |
* (non-Javadoc)
|
| 581 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, byte)
|
| 582 |
*/
|
| 583 |
public void addToCellValue(int x, int y, byte value) |
| 584 |
throws GridException {
|
| 585 |
try {
|
| 586 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) + value));
|
| 587 |
} catch (OutOfGridException e) {
|
| 588 |
throw new GridException(""); |
| 589 |
} catch (RasterBufferInvalidAccessException e) {
|
| 590 |
throw new GridException(""); |
| 591 |
} catch (RasterBufferInvalidException e) {
|
| 592 |
throw new GridException(""); |
| 593 |
} |
| 594 |
} |
| 595 |
|
| 596 |
/*
|
| 597 |
* (non-Javadoc)
|
| 598 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, short)
|
| 599 |
*/
|
| 600 |
public void addToCellValue(int x, int y, short value) |
| 601 |
throws GridException {
|
| 602 |
try {
|
| 603 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) + value));
|
| 604 |
} catch (OutOfGridException e) {
|
| 605 |
throw new GridException(""); |
| 606 |
} catch (RasterBufferInvalidAccessException e) {
|
| 607 |
throw new GridException(""); |
| 608 |
} catch (RasterBufferInvalidException e) {
|
| 609 |
throw new GridException(""); |
| 610 |
} |
| 611 |
} |
| 612 |
|
| 613 |
/*
|
| 614 |
* (non-Javadoc)
|
| 615 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, int)
|
| 616 |
*/
|
| 617 |
public void addToCellValue(int x, int y, int value) |
| 618 |
throws GridException {
|
| 619 |
try {
|
| 620 |
writer.setCellValue(x, y, (reader.getCellValueAsInt(x, y) + value)); |
| 621 |
} catch (OutOfGridException e) {
|
| 622 |
throw new GridException(""); |
| 623 |
} catch (RasterBufferInvalidAccessException e) {
|
| 624 |
throw new GridException(""); |
| 625 |
} catch (RasterBufferInvalidException e) {
|
| 626 |
throw new GridException(""); |
| 627 |
} |
| 628 |
} |
| 629 |
|
| 630 |
/*
|
| 631 |
* (non-Javadoc)
|
| 632 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, float)
|
| 633 |
*/
|
| 634 |
public void addToCellValue(int x, int y, float value) |
| 635 |
throws GridException {
|
| 636 |
try {
|
| 637 |
writer.setCellValue(x, y, (reader.getCellValueAsFloat(x, y) + value)); |
| 638 |
} catch (OutOfGridException e) {
|
| 639 |
throw new GridException(""); |
| 640 |
} catch (RasterBufferInvalidAccessException e) {
|
| 641 |
throw new GridException(""); |
| 642 |
} catch (RasterBufferInvalidException e) {
|
| 643 |
throw new GridException(""); |
| 644 |
} |
| 645 |
} |
| 646 |
|
| 647 |
/*
|
| 648 |
* (non-Javadoc)
|
| 649 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, double)
|
| 650 |
*/
|
| 651 |
public void addToCellValue(int x, int y, double value) |
| 652 |
throws GridException {
|
| 653 |
try {
|
| 654 |
writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y) + value)); |
| 655 |
} catch (OutOfGridException e) {
|
| 656 |
throw new GridException(""); |
| 657 |
} catch (RasterBufferInvalidAccessException e) {
|
| 658 |
throw new GridException(""); |
| 659 |
} catch (RasterBufferInvalidException e) {
|
| 660 |
throw new GridException(""); |
| 661 |
} |
| 662 |
} |
| 663 |
|
| 664 |
/*
|
| 665 |
* (non-Javadoc)
|
| 666 |
* @see org.gvsig.fmap.grid.IWritableGrid#multiply(double)
|
| 667 |
*/
|
| 668 |
public void multiply(double value) throws GridException { |
| 669 |
boolean interp = (reader instanceof GridInterpolated); |
| 670 |
switchToInterpolationMethod(false);
|
| 671 |
try{
|
| 672 |
switch(rasterBuf.getDataType()){
|
| 673 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < getNX(); x++) |
| 674 |
for (int y = 0; y < getNY(); y++) |
| 675 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) * value));
|
| 676 |
break;
|
| 677 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < getNX(); x++) |
| 678 |
for (int y = 0; y < getNY(); y++) |
| 679 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) * value));
|
| 680 |
break;
|
| 681 |
case IBuffer.TYPE_INT: for (int x = 0; x < getNX(); x++) |
| 682 |
for (int y = 0; y < getNY(); y++) |
| 683 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) * value));
|
| 684 |
break;
|
| 685 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < getNX(); x++) |
| 686 |
for (int y = 0; y < getNY(); y++) |
| 687 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) * value));
|
| 688 |
break;
|
| 689 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < getNX(); x++) |
| 690 |
for (int y = 0; y < getNY(); y++) |
| 691 |
writer.setCellValue(x, y, (reader.getCellValueAsDouble(x, y) * value)); |
| 692 |
break;
|
| 693 |
} |
| 694 |
} catch (RasterBufferInvalidException e) {
|
| 695 |
throw new GridException("Buffer de datos no v?lido", e); |
| 696 |
} catch (OutOfGridException e1) {
|
| 697 |
throw new GridException("Acceso fuera de los l?mites del Grid", e1); |
| 698 |
} catch (RasterBufferInvalidAccessException e) {
|
| 699 |
throw new GridException("Acceso al grid no v?lido", e); |
| 700 |
} |
| 701 |
//Restauramos el reader que hab?a
|
| 702 |
switchToInterpolationMethod(interp); |
| 703 |
} |
| 704 |
|
| 705 |
/*
|
| 706 |
* (non-Javadoc)
|
| 707 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoDataValue(double)
|
| 708 |
*/
|
| 709 |
public void setNoDataValue(double dNoDataValue){ |
| 710 |
writer.setNoDataValue((float) dNoDataValue);
|
| 711 |
} |
| 712 |
|
| 713 |
/*
|
| 714 |
* (non-Javadoc)
|
| 715 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoData(int, int)
|
| 716 |
*/
|
| 717 |
public void setNoData(int x, int y){ |
| 718 |
writer.setNoData(x,y); |
| 719 |
} |
| 720 |
|
| 721 |
public void ExportToArcViewASCIIFile(String sFilename){ |
| 722 |
try {
|
| 723 |
writer.ExportToArcViewASCIIFile(sFilename); |
| 724 |
} catch (NumberFormatException e) { |
| 725 |
e.printStackTrace(); |
| 726 |
} catch (IOException e) { |
| 727 |
e.printStackTrace(); |
| 728 |
} |
| 729 |
} |
| 730 |
|
| 731 |
//************* Query Services *********************
|
| 732 |
|
| 733 |
/*
|
| 734 |
* (non-Javadoc)
|
| 735 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isNoDataValue(double)
|
| 736 |
*/
|
| 737 |
public boolean isNoDataValue(double noDataValue){ |
| 738 |
return (reader.getNoDataValue() == noDataValue);
|
| 739 |
} |
| 740 |
|
| 741 |
/*
|
| 742 |
* (non-Javadoc)
|
| 743 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isInGrid(int, int)
|
| 744 |
*/
|
| 745 |
public boolean isInGrid(int x, int y){ |
| 746 |
return reader.isCellInGrid(x, y);
|
| 747 |
} |
| 748 |
|
| 749 |
/*
|
| 750 |
* (non-Javadoc)
|
| 751 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellSize()
|
| 752 |
*/
|
| 753 |
public double getCellSize() { |
| 754 |
return reader.getCellSize();
|
| 755 |
} |
| 756 |
|
| 757 |
/*
|
| 758 |
* (non-Javadoc)
|
| 759 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsByte(int, int)
|
| 760 |
*/
|
| 761 |
public byte getCellValueAsByte(int x, int y)throws GridException { |
| 762 |
try {
|
| 763 |
return reader.getCellValueAsByte(x, y);
|
| 764 |
} catch (RasterBufferInvalidAccessException e) {
|
| 765 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
| 766 |
} catch (RasterBufferInvalidException e) {
|
| 767 |
throw new GridException("Buffer not valid"); |
| 768 |
} |
| 769 |
} |
| 770 |
|
| 771 |
/*
|
| 772 |
* (non-Javadoc)
|
| 773 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsShort(int, int)
|
| 774 |
*/
|
| 775 |
public short getCellValueAsShort(int x, int y)throws GridException { |
| 776 |
try {
|
| 777 |
return reader.getCellValueAsShort(x, y);
|
| 778 |
} catch (RasterBufferInvalidAccessException e) {
|
| 779 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
| 780 |
} catch (RasterBufferInvalidException e) {
|
| 781 |
throw new GridException("Buffer not valid"); |
| 782 |
} |
| 783 |
} |
| 784 |
|
| 785 |
/*
|
| 786 |
* (non-Javadoc)
|
| 787 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsInt(int, int)
|
| 788 |
*/
|
| 789 |
public int getCellValueAsInt(int x, int y)throws GridException { |
| 790 |
try {
|
| 791 |
return reader.getCellValueAsInt(x, y);
|
| 792 |
} catch (RasterBufferInvalidAccessException e) {
|
| 793 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
| 794 |
} catch (RasterBufferInvalidException e) {
|
| 795 |
throw new GridException("Buffer not valid"); |
| 796 |
} |
| 797 |
} |
| 798 |
|
| 799 |
/*
|
| 800 |
* (non-Javadoc)
|
| 801 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsFloat(int, int)
|
| 802 |
*/
|
| 803 |
public float getCellValueAsFloat(int x, int y)throws GridException { |
| 804 |
try {
|
| 805 |
return reader.getCellValueAsFloat(x, y);
|
| 806 |
} catch (RasterBufferInvalidAccessException e) {
|
| 807 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
| 808 |
} catch (RasterBufferInvalidException e) {
|
| 809 |
throw new GridException("Buffer not valid"); |
| 810 |
} |
| 811 |
} |
| 812 |
|
| 813 |
/*
|
| 814 |
* (non-Javadoc)
|
| 815 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
| 816 |
*/
|
| 817 |
public double getCellValueAsDouble(int x, int y)throws GridException { |
| 818 |
try {
|
| 819 |
return reader.getCellValueAsDouble(x, y);
|
| 820 |
} catch (RasterBufferInvalidAccessException e) {
|
| 821 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
| 822 |
} catch (RasterBufferInvalidException e) {
|
| 823 |
throw new GridException("Buffer not valid"); |
| 824 |
} |
| 825 |
} |
| 826 |
|
| 827 |
/*
|
| 828 |
* (non-Javadoc)
|
| 829 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
| 830 |
*/
|
| 831 |
public double getCellValue(int x, int y)throws GridException { |
| 832 |
try {
|
| 833 |
return reader.getCellValue(x, y);
|
| 834 |
} catch (RasterBufferInvalidAccessException e) {
|
| 835 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
| 836 |
} catch (RasterBufferInvalidException e) {
|
| 837 |
throw new GridException("Buffer not valid"); |
| 838 |
} |
| 839 |
} |
| 840 |
|
| 841 |
/*
|
| 842 |
* (non-Javadoc)
|
| 843 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNoDataValue()
|
| 844 |
*/
|
| 845 |
public double getNoDataValue() { |
| 846 |
return rasterBuf.getNoDataValue();
|
| 847 |
} |
| 848 |
|
| 849 |
/*
|
| 850 |
* (non-Javadoc)
|
| 851 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMinValue()
|
| 852 |
*/
|
| 853 |
public double getMinValue() throws GridException { |
| 854 |
if (!statistic.isStatisticsCalculated())
|
| 855 |
statistic.calculateStatistics(); |
| 856 |
return statistic.getMin();
|
| 857 |
} |
| 858 |
|
| 859 |
/*
|
| 860 |
* (non-Javadoc)
|
| 861 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMaxValue()
|
| 862 |
*/
|
| 863 |
public double getMaxValue() throws GridException { |
| 864 |
if (!statistic.isStatisticsCalculated())
|
| 865 |
statistic.calculateStatistics(); |
| 866 |
return statistic.getMax();
|
| 867 |
} |
| 868 |
|
| 869 |
/*
|
| 870 |
* (non-Javadoc)
|
| 871 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMeanValue()
|
| 872 |
*/
|
| 873 |
public double getMeanValue() throws GridException { |
| 874 |
if (!statistic.isStatisticsCalculated())
|
| 875 |
statistic.calculateStatistics(); |
| 876 |
return statistic.getMean();
|
| 877 |
} |
| 878 |
|
| 879 |
/*
|
| 880 |
* (non-Javadoc)
|
| 881 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getVariance()
|
| 882 |
*/
|
| 883 |
public double getVariance() throws GridException { |
| 884 |
if (!statistic.isStatisticsCalculated())
|
| 885 |
statistic.calculateStatistics(); |
| 886 |
return statistic.getVariance();
|
| 887 |
} |
| 888 |
|
| 889 |
/*
|
| 890 |
* (non-Javadoc)
|
| 891 |
* @see org.gvsig.fmap.grid.IQueryableGrid#setInterpolationMethod(int)
|
| 892 |
*/
|
| 893 |
public void setInterpolationMethod(int iMethod){ |
| 894 |
if (reader instanceof GridInterpolated) |
| 895 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
| 896 |
else{
|
| 897 |
this.switchToInterpolationMethod(true); |
| 898 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
| 899 |
} |
| 900 |
} |
| 901 |
|
| 902 |
/*
|
| 903 |
* (non-Javadoc)
|
| 904 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNX()
|
| 905 |
*/
|
| 906 |
public int getNX(){ |
| 907 |
return reader.getNX();
|
| 908 |
} |
| 909 |
|
| 910 |
/*
|
| 911 |
* (non-Javadoc)
|
| 912 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNY()
|
| 913 |
*/
|
| 914 |
public int getNY(){ |
| 915 |
return reader.getNY();
|
| 916 |
} |
| 917 |
|
| 918 |
/*
|
| 919 |
* (non-Javadoc)
|
| 920 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNX()
|
| 921 |
*/
|
| 922 |
public int getLayerNX(){ |
| 923 |
return layerExtent.getNX();
|
| 924 |
} |
| 925 |
|
| 926 |
/*
|
| 927 |
* (non-Javadoc)
|
| 928 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNY()
|
| 929 |
*/
|
| 930 |
public int getLayerNY(){ |
| 931 |
return layerExtent.getNY();
|
| 932 |
} |
| 933 |
|
| 934 |
public int getDataType(){ |
| 935 |
return dataType;
|
| 936 |
} |
| 937 |
|
| 938 |
private boolean getSubMatrix3x3(int x, int y, double subMatrix[]) |
| 939 |
throws GridException {
|
| 940 |
int i;
|
| 941 |
int iDir;
|
| 942 |
double z, z2;
|
| 943 |
|
| 944 |
z = getCellValueAsDouble(x, y); |
| 945 |
|
| 946 |
if(isNoDataValue(z))
|
| 947 |
return false; |
| 948 |
else {
|
| 949 |
//SubMatrix[4] = 0.0;
|
| 950 |
for(i = 0; i < 4; i++) { |
| 951 |
iDir = 2 * i;
|
| 952 |
z2 = getCellValueAsDouble(x + m_iOffsetX[iDir], y + m_iOffsetY[iDir]); |
| 953 |
if( !isNoDataValue(z2))
|
| 954 |
subMatrix[i] = z2 - z; |
| 955 |
else {
|
| 956 |
z2 = getCellValueAsDouble(x + m_iOffsetX[(iDir + 4) % 8], y + m_iOffsetY[(iDir + 4) % 8]); |
| 957 |
if( !isNoDataValue(z2))
|
| 958 |
subMatrix[i] = z - z2; |
| 959 |
else
|
| 960 |
subMatrix[i] = 0.0;
|
| 961 |
} |
| 962 |
} |
| 963 |
|
| 964 |
return true; |
| 965 |
} |
| 966 |
} |
| 967 |
|
| 968 |
/*
|
| 969 |
* (non-Javadoc)
|
| 970 |
* @see org.gvsig.raster.grid.IQueryableGrid#getSlope(int, int)
|
| 971 |
*/
|
| 972 |
public double getSlope(int x, int y)throws GridException { |
| 973 |
double zm[], G, H; |
| 974 |
|
| 975 |
zm = new double[4]; |
| 976 |
|
| 977 |
try {
|
| 978 |
if( getSubMatrix3x3(x, y, zm) ) {
|
| 979 |
G = (zm[0] - zm[2]) / _2DX; |
| 980 |
H = (zm[1] - zm[3]) / _2DX; |
| 981 |
return Math.atan(Math.sqrt(G * G + H * H)); |
| 982 |
} else
|
| 983 |
return rasterBuf.getNoDataValue();
|
| 984 |
} catch (GridException e) {
|
| 985 |
throw new GridException("Problems accesing 3x3 submatrix"); |
| 986 |
} |
| 987 |
} |
| 988 |
|
| 989 |
/*
|
| 990 |
* (non-Javadoc)
|
| 991 |
* @see org.gvsig.raster.grid.IQueryableGrid#getAspect(int, int)
|
| 992 |
*/
|
| 993 |
public double getAspect(int x, int y)throws GridException { |
| 994 |
double zm[], G, H, dAspect; |
| 995 |
zm = new double[4]; |
| 996 |
|
| 997 |
try {
|
| 998 |
if( getSubMatrix3x3(x, y, zm) ) {
|
| 999 |
G = (zm[0] - zm[2]) / _2DX; |
| 1000 |
H = (zm[1] - zm[3]) / _2DX; |
| 1001 |
if(G != 0.0) |
| 1002 |
dAspect = DEG_180_IN_RAD + Math.atan2(H, G);
|
| 1003 |
else
|
| 1004 |
dAspect = H > 0.0 ? DEG_270_IN_RAD : (H < 0.0 ? DEG_90_IN_RAD : -1.0); |
| 1005 |
return dAspect;
|
| 1006 |
} |
| 1007 |
else
|
| 1008 |
return rasterBuf.getNoDataValue();
|
| 1009 |
} catch (GridException e) {
|
| 1010 |
throw new GridException("Problems accesing 3x3 submatrix"); |
| 1011 |
} |
| 1012 |
} |
| 1013 |
|
| 1014 |
public static int getXOffsetInDir(int iDir){ |
| 1015 |
return m_iOffsetX[iDir];
|
| 1016 |
} |
| 1017 |
|
| 1018 |
public static int getYOffsetInDir(int iDir){ |
| 1019 |
return m_iOffsetY[iDir];
|
| 1020 |
} |
| 1021 |
|
| 1022 |
public double getDistToNeighborInDir(int iDir){ |
| 1023 |
return m_dDist[iDir];
|
| 1024 |
} |
| 1025 |
|
| 1026 |
public static double getUnitDistToNeighborInDir(int iDir){ |
| 1027 |
return( (iDir % 2 != 0) ? Math.sqrt(2.0) : 1.0 ); |
| 1028 |
} |
| 1029 |
|
| 1030 |
/*
|
| 1031 |
* (non-Javadoc)
|
| 1032 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int)
|
| 1033 |
*/
|
| 1034 |
public int getDirToNextDownslopeCell(int x, int y)throws GridException{ |
| 1035 |
return getDirToNextDownslopeCell(x, y, true); |
| 1036 |
} |
| 1037 |
|
| 1038 |
/*
|
| 1039 |
* (non-Javadoc)
|
| 1040 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int, boolean)
|
| 1041 |
*/
|
| 1042 |
public int getDirToNextDownslopeCell(int x, int y, boolean bForceDirToNoDataCell) |
| 1043 |
throws GridException{
|
| 1044 |
|
| 1045 |
int i, iDir;
|
| 1046 |
double z, z2, dSlope, dMaxSlope;
|
| 1047 |
|
| 1048 |
z = getCellValueAsDouble(x, y); |
| 1049 |
|
| 1050 |
if(isNoDataValue(z))
|
| 1051 |
return -1; |
| 1052 |
|
| 1053 |
dMaxSlope = 0.0;
|
| 1054 |
for(iDir=-1, i=0; i<8; i++) { |
| 1055 |
z2 = getCellValueAsDouble(x + m_iOffsetX[i], y + m_iOffsetY[i]); |
| 1056 |
if(isNoDataValue(z2)) {
|
| 1057 |
if (bForceDirToNoDataCell)
|
| 1058 |
return i;
|
| 1059 |
else
|
| 1060 |
return -1; |
| 1061 |
} |
| 1062 |
else {
|
| 1063 |
dSlope = (z - z2) / getDistToNeighborInDir(i); |
| 1064 |
if( dSlope > dMaxSlope ) {
|
| 1065 |
iDir = i; |
| 1066 |
dMaxSlope = dSlope; |
| 1067 |
} |
| 1068 |
} |
| 1069 |
} |
| 1070 |
return iDir;
|
| 1071 |
} |
| 1072 |
|
| 1073 |
public GridCell[] getSortedArrayOfCells()throws GridException{ |
| 1074 |
int i;
|
| 1075 |
int iX,iY;
|
| 1076 |
int iNX = getNX();
|
| 1077 |
int iCells = getNX() * getNY();
|
| 1078 |
GridCell [] cells = null; |
| 1079 |
GridCell cell = null;
|
| 1080 |
|
| 1081 |
cells = new GridCell[iCells];
|
| 1082 |
|
| 1083 |
for (i = 0; i < iCells; i++) { |
| 1084 |
iX = i % iNX; |
| 1085 |
iY = i / iNX; |
| 1086 |
switch(getDataType()){
|
| 1087 |
case IBuffer.TYPE_BYTE: cell = new GridCell(iX, iY, getCellValueAsByte(iX, iY)); break; |
| 1088 |
case IBuffer.TYPE_SHORT: cell = new GridCell(iX, iY, getCellValueAsShort(iX, iY)); break; |
| 1089 |
case IBuffer.TYPE_INT: cell = new GridCell(iX, iY, getCellValueAsInt(iX, iY)); break; |
| 1090 |
case IBuffer.TYPE_FLOAT: cell = new GridCell(iX, iY, getCellValueAsFloat(iX, iY)); break; |
| 1091 |
case IBuffer.TYPE_DOUBLE: cell = new GridCell(iX, iY, getCellValueAsDouble(iX, iY)); break; |
| 1092 |
} |
| 1093 |
|
| 1094 |
cells[i] = cell; |
| 1095 |
} |
| 1096 |
|
| 1097 |
Arrays.sort(cells);
|
| 1098 |
|
| 1099 |
return cells;
|
| 1100 |
} |
| 1101 |
|
| 1102 |
/**
|
| 1103 |
* Obtiene la paleta para el caso de un MDT. Esta funci?n evita el tener que obtener
|
| 1104 |
* un array de paletas y buscar en el cuando se trata de un caso simple de MDT de una
|
| 1105 |
* sola banda. Comprueba que se trata de un raster monobanda con paleta asociada antes
|
| 1106 |
* de devolverla.
|
| 1107 |
* @return GridPalette asociada al Grid
|
| 1108 |
*/
|
| 1109 |
public GridPalette getMDTPalette() {
|
| 1110 |
if( rasterBuf != null && |
| 1111 |
rasterBuf.getBandCount() == 1 &&
|
| 1112 |
palette != null)
|
| 1113 |
return palette[0]; |
| 1114 |
return null; |
| 1115 |
} |
| 1116 |
|
| 1117 |
/**
|
| 1118 |
* Obtiene la lista de paletas asociadas al grid
|
| 1119 |
* @return Lista de objetos GridPalette
|
| 1120 |
*/
|
| 1121 |
public GridPalette[] getPalettes() { |
| 1122 |
return palette;
|
| 1123 |
} |
| 1124 |
|
| 1125 |
/**
|
| 1126 |
* Obtiene el n?mero de bandas del grid o 0 si no tiene buffer de
|
| 1127 |
* datos asociado.
|
| 1128 |
* @return N?mero de bandas
|
| 1129 |
*/
|
| 1130 |
public int getBandCount() { |
| 1131 |
if(rasterBuf != null) |
| 1132 |
return rasterBuf.getBandCount();
|
| 1133 |
return 0; |
| 1134 |
} |
| 1135 |
|
| 1136 |
/**
|
| 1137 |
* Asigna la lista de paletas asociadas al grid
|
| 1138 |
* @param palette Lista de objetos GridPalette
|
| 1139 |
*/
|
| 1140 |
public void setPalettes(GridPalette[] palette) { |
| 1141 |
this.palette = palette;
|
| 1142 |
} |
| 1143 |
|
| 1144 |
/**
|
| 1145 |
* Obtiene la lista de filtros.
|
| 1146 |
* @return Lista de filtros.
|
| 1147 |
*/
|
| 1148 |
public RasterFilterList getFilterList(){
|
| 1149 |
return filterList;
|
| 1150 |
} |
| 1151 |
|
| 1152 |
/**
|
| 1153 |
* Asigna la lista de filtros
|
| 1154 |
* @param filterList
|
| 1155 |
*/
|
| 1156 |
public void setFilterList(RasterFilterList filterList) { |
| 1157 |
this.filterList = filterList;
|
| 1158 |
} |
| 1159 |
|
| 1160 |
/**
|
| 1161 |
*Aplica la lista de filtros sobre el buffer
|
| 1162 |
* @throws InterruptedException
|
| 1163 |
*/
|
| 1164 |
public void applyFilters() throws InterruptedException { |
| 1165 |
if (filterList == null) |
| 1166 |
return;
|
| 1167 |
|
| 1168 |
filterList.setInitRasterBuf(rasterBuf); |
| 1169 |
|
| 1170 |
filterList.getEnv().put("GridExtent", getGridExtent());
|
| 1171 |
filterList.getEnv().put("WindowExtent", getWindowExtent());
|
| 1172 |
|
| 1173 |
filterList.execute(); |
| 1174 |
rasterBuf = (RasterBuffer) filterList.getResult(); |
| 1175 |
dataType = rasterBuf.getDataType(); |
| 1176 |
} |
| 1177 |
|
| 1178 |
/**
|
| 1179 |
* Obtiene el buffer de datos del grid
|
| 1180 |
* @return RasterBuf
|
| 1181 |
*/
|
| 1182 |
public IBuffer getRasterBuf() {
|
| 1183 |
return rasterBuf;
|
| 1184 |
} |
| 1185 |
|
| 1186 |
/**
|
| 1187 |
* Asigna la banda sobre la que se realizan las operaciones. Por defecto es la banda 0
|
| 1188 |
* con lo que para el uso de MDTs no habr? que modificar este valor.
|
| 1189 |
* @param band Banda sobre la que se realizan las operaciones.
|
| 1190 |
*/
|
| 1191 |
public void setBandToOperate(int band) { |
| 1192 |
if(writer != null) |
| 1193 |
writer.setBandToOperate(band); |
| 1194 |
if(reader != null) |
| 1195 |
reader.setBandToOperate(band); |
| 1196 |
if(statistic != null) |
| 1197 |
statistic.setBandToOperate(band); |
| 1198 |
} |
| 1199 |
|
| 1200 |
/**
|
| 1201 |
* Obtiene el extent de la ventana seleccionada para petici?n de datos
|
| 1202 |
* @return GridExtent
|
| 1203 |
*/
|
| 1204 |
public GridExtent getWindowExtent() {
|
| 1205 |
return windowExtent;
|
| 1206 |
} |
| 1207 |
|
| 1208 |
/**
|
| 1209 |
* Obtiene el extent del grid para petici?n de datos
|
| 1210 |
* @return GridExtent
|
| 1211 |
*/
|
| 1212 |
public GridExtent getGridExtent() {
|
| 1213 |
return layerExtent;
|
| 1214 |
} |
| 1215 |
|
| 1216 |
/**
|
| 1217 |
* Releases buffer resources
|
| 1218 |
*/
|
| 1219 |
public void free() { |
| 1220 |
if (rasterBuf != null) |
| 1221 |
rasterBuf.free(); |
| 1222 |
if (filterList != null) |
| 1223 |
filterList.free(); |
| 1224 |
if (writer != null) |
| 1225 |
writer.free(); |
| 1226 |
} |
| 1227 |
} |