root / trunk / libraries / libRaster / src / org / gvsig / raster / grid / Grid.java @ 11200
History | View | Annotate | Download (33.6 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.awt.image.DataBuffer; |
| 22 |
import java.io.IOException; |
| 23 |
import java.util.Arrays; |
| 24 |
|
| 25 |
import org.gvsig.raster.buffer.BufferFactory; |
| 26 |
import org.gvsig.raster.buffer.RasterBuffer; |
| 27 |
import org.gvsig.raster.buffer.RasterBufferInvalidAccessException; |
| 28 |
import org.gvsig.raster.buffer.RasterBufferInvalidException; |
| 29 |
import org.gvsig.raster.dataset.IBuffer; |
| 30 |
import org.gvsig.raster.dataset.properties.DatasetListTransparency; |
| 31 |
import org.gvsig.raster.grid.filter.RasterFilterList; |
| 32 |
|
| 33 |
/**
|
| 34 |
* Clase que representa una rejilla de datos raster. Este tipo de grid tiene el interfaz necesario
|
| 35 |
* de acceso a la informaci?n raster para aplicaciones de analisis raster. Contiene m?todos de acceso al
|
| 36 |
* dato tanto en lectura como en escritura y encapsula operaciones entre grids. Adem?s contiene
|
| 37 |
* objetos que contienen las caracter?sticas asociadas a ese grid. Sobre un grid pueden
|
| 38 |
* aplicarse tambi?n operaciones de filtrado.
|
| 39 |
*
|
| 40 |
* Podemos crear un Grid de cinco formas distitas:
|
| 41 |
* <UL>
|
| 42 |
* <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>
|
| 43 |
* <LI>A partir de un extensi?n de capa, una extensi?n de vista, un tipo de dato y un n?mero de datos
|
| 44 |
* crea un Grid vacio util para escritura.</LI>
|
| 45 |
* <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>
|
| 46 |
* <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>
|
| 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 todas las bandas disponibles.</LI>
|
| 48 |
* </UL>
|
| 49 |
*
|
| 50 |
* @author Victor Olaya (volaya@ya.com)
|
| 51 |
* @author Nacho Brodin (nachobrodin@gmail.com)
|
| 52 |
*/
|
| 53 |
public class Grid implements IQueryableGrid, IWritableGrid{ |
| 54 |
|
| 55 |
//TODO: ARQUITECTURA: Estos tipos de datos no deben ser necesarios. Existiendo IBuffer se tendr?an que usar esos Hay que convertir, antes de eliminarlos, el uso de estos a los de IBuffer
|
| 56 |
public static final int RASTER_DATA_TYPE_FLOAT = DataBuffer.TYPE_FLOAT; |
| 57 |
public static final int RASTER_DATA_TYPE_DOUBLE = DataBuffer.TYPE_DOUBLE; |
| 58 |
public static final int RASTER_DATA_TYPE_INT = DataBuffer.TYPE_INT; |
| 59 |
public static final int RASTER_DATA_TYPE_SHORT = DataBuffer.TYPE_SHORT; |
| 60 |
public static final int RASTER_DATA_TYPE_BYTE = DataBuffer.TYPE_BYTE; |
| 61 |
|
| 62 |
public final static double DEG_45_IN_RAD = Math.PI / 180. * 45.; |
| 63 |
public final static double DEG_90_IN_RAD = Math.PI / 180. * 90.; |
| 64 |
public final static double DEG_180_IN_RAD = Math.PI ; |
| 65 |
public final static double DEG_270_IN_RAD = Math.PI / 180. * 270.; |
| 66 |
public final static double DEG_360_IN_RAD = Math.PI * 2.; |
| 67 |
|
| 68 |
/* neighbor's address*/ /* N NE E SE S SW W NW */ |
| 69 |
private final static int m_iOffsetX []= { 0, 1, 1, 1, 0, -1, -1, -1}; |
| 70 |
private final static int m_iOffsetY []= { 1, 1, 0, -1, -1, -1, 0, 1}; |
| 71 |
|
| 72 |
private double m_dDist[]; |
| 73 |
public double _2DX, _6DX, _DX_2, _4DX_2; |
| 74 |
|
| 75 |
private int[] bands = null; |
| 76 |
private int dataType = IBuffer.TYPE_UNDEFINED; |
| 77 |
|
| 78 |
private RasterBuffer rasterBuf = null; |
| 79 |
private GridReader reader = null; |
| 80 |
private GridWriter writer = null; |
| 81 |
private GridExtent windowExtent = null; |
| 82 |
private GridExtent layerExtent = null; |
| 83 |
private GridStatistic statistic = null; |
| 84 |
private GridTransparency transparency = null; |
| 85 |
private GridPalette[] palette = null; |
| 86 |
private RasterFilterList filterList = null; |
| 87 |
|
| 88 |
|
| 89 |
|
| 90 |
/**
|
| 91 |
* Crea un grid a partir de un BufferFactory. Usa el extent de la fuente de datos como
|
| 92 |
* extent completo y el extent pasado como par?metro como extensi?n de ventana. El buffer de
|
| 93 |
* la fuente de datos no tiene porque estar cargado ya que de esto se encarga el reader.
|
| 94 |
* @param dataSource Fuente de datos
|
| 95 |
* @param bands n?mero de bandas requeridas
|
| 96 |
* @param windowExtent Extensi?n de la ventana. Si este par?metro es null se usar? el
|
| 97 |
* mismo que el de la capa.
|
| 98 |
*/
|
| 99 |
public Grid(BufferFactory dataSource, int[] bands, GridExtent windowExtent) |
| 100 |
throws RasterBufferInvalidException{
|
| 101 |
layerExtent = new GridExtent(dataSource.getExtent(), dataSource.getXCellSize());
|
| 102 |
dataType = dataSource.getDataType(); |
| 103 |
this.bands = bands;
|
| 104 |
|
| 105 |
if(windowExtent == null) |
| 106 |
this.windowExtent = layerExtent;
|
| 107 |
else
|
| 108 |
this.windowExtent = windowExtent;
|
| 109 |
|
| 110 |
rasterBuf = (RasterBuffer)dataSource.getRasterBuf(); |
| 111 |
|
| 112 |
if (windowExtent.fitsIn(layerExtent))
|
| 113 |
reader = new GridNotInterpolated(dataSource, layerExtent, windowExtent, bands);
|
| 114 |
else
|
| 115 |
reader = new GridInterpolated(dataSource, layerExtent, windowExtent, bands);
|
| 116 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
| 117 |
|
| 118 |
init(dataSource); |
| 119 |
} |
| 120 |
|
| 121 |
/**
|
| 122 |
* Crea un grid vacio a partir de un extent y un tipo de datos. Se crea un buffer vacio en el
|
| 123 |
* que puede escribirse a trav?s del writer. Los datos escritos pueden ser consultados con el
|
| 124 |
* reader. No tiene una fuente de datos asociada ya que es un grid vacio basicamente para
|
| 125 |
* escritura.
|
| 126 |
* @param layerExtent Tama?o completo de la capa
|
| 127 |
* @param windowExtent Ventana de datos.
|
| 128 |
* @param dataType Tipo de datos del buffer
|
| 129 |
* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
|
| 130 |
*/
|
| 131 |
public Grid(GridExtent layerExtent,
|
| 132 |
GridExtent windowExtent, |
| 133 |
int dataType,
|
| 134 |
int[] bands) throws RasterBufferInvalidException{ |
| 135 |
this.windowExtent = windowExtent;
|
| 136 |
this.layerExtent = layerExtent;
|
| 137 |
this.dataType = dataType;
|
| 138 |
|
| 139 |
rasterBuf = RasterBuffer.getBuffer(dataType, layerExtent.getNX(), layerExtent.getNY(), bands.length, true, null); |
| 140 |
|
| 141 |
if (windowExtent.fitsIn(layerExtent))
|
| 142 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 143 |
else
|
| 144 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 145 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
| 146 |
init(null);
|
| 147 |
} |
| 148 |
|
| 149 |
/**
|
| 150 |
* Crea un grid a partir de un BufferFactory. El buffer debe estar cargado de datos y el extent
|
| 151 |
* de este viene definido en el par?metro windowExtent.
|
| 152 |
* @param dataSource Fuente de datos
|
| 153 |
* @param windowExtent Extent de los datos cargados en dataSource
|
| 154 |
* @param notInterp Si es true fuerza a que el reader sea sin interpolaci?n. Si es false decide si
|
| 155 |
* el reader es interpolado o no a partir de los extents de capa y la ventana seleccionada.
|
| 156 |
*/
|
| 157 |
public Grid(BufferFactory dataSource, boolean notInterp)throws RasterBufferInvalidException{ |
| 158 |
this.layerExtent = new GridExtent(dataSource.getExtent(), dataSource.getXCellSize()); |
| 159 |
dataType = dataSource.getDataType(); |
| 160 |
bands = dataSource.getDrawableBands(); |
| 161 |
|
| 162 |
this.windowExtent = new GridExtent(dataSource.getDataExtent(), dataSource.getXCellSize()); |
| 163 |
|
| 164 |
rasterBuf = (RasterBuffer)dataSource.getRasterBuf(); |
| 165 |
|
| 166 |
if(notInterp){
|
| 167 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 168 |
}else{
|
| 169 |
if (windowExtent.fitsIn(layerExtent))
|
| 170 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 171 |
else
|
| 172 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 173 |
} |
| 174 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
| 175 |
init(dataSource); |
| 176 |
} |
| 177 |
|
| 178 |
/**
|
| 179 |
* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
|
| 180 |
* dataSource tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
|
| 181 |
* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo.
|
| 182 |
* @param dataSource Fuente de datos
|
| 183 |
* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
|
| 184 |
*/
|
| 185 |
public Grid(BufferFactory dataSource, int[] bands) |
| 186 |
throws RasterBufferInvalidException{
|
| 187 |
//La petici?n es del raster completo
|
| 188 |
windowExtent = layerExtent = new GridExtent(dataSource.getExtent(), dataSource.getXCellSize());
|
| 189 |
dataType = dataSource.getDataType(); |
| 190 |
this.bands = bands;
|
| 191 |
|
| 192 |
reader = new GridNotInterpolated(dataSource, layerExtent, windowExtent, bands);
|
| 193 |
rasterBuf = (RasterBuffer)dataSource.getRasterBuf(); |
| 194 |
writer = new GridWriter(windowExtent, dataType, rasterBuf);
|
| 195 |
|
| 196 |
init(dataSource); |
| 197 |
} |
| 198 |
|
| 199 |
/**
|
| 200 |
* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
|
| 201 |
* dataSource tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
|
| 202 |
* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo. El buffer se cargar?
|
| 203 |
* con todas las bandas disponibles.
|
| 204 |
* @param dataSource Fuente de datos
|
| 205 |
*/
|
| 206 |
public Grid(BufferFactory dataSource)
|
| 207 |
throws RasterBufferInvalidException{
|
| 208 |
//La petici?n es del raster completo
|
| 209 |
windowExtent = layerExtent = new GridExtent(dataSource.getExtent(), dataSource.getXCellSize());
|
| 210 |
dataType = dataSource.getDataType(); |
| 211 |
|
| 212 |
bands = new int[dataSource.getBandCount()]; |
| 213 |
for(int i = 0; i < dataSource.getBandCount(); i ++) |
| 214 |
bands[i] = i; |
| 215 |
reader = new GridNotInterpolated(dataSource, layerExtent, windowExtent, bands);
|
| 216 |
rasterBuf = (RasterBuffer)dataSource.getRasterBuf(); |
| 217 |
writer = new GridWriter(windowExtent, dataType, rasterBuf);
|
| 218 |
|
| 219 |
init(dataSource); |
| 220 |
} |
| 221 |
|
| 222 |
/**
|
| 223 |
* Selecciona la forma de obtener datos con o sin interpolaci?n. Si pasamos el par?metro
|
| 224 |
* false al aplicar un m?todo de consulta de datos este ser? aplicado sin interpolaci?n.
|
| 225 |
* @param interpolation
|
| 226 |
*/
|
| 227 |
public void switchToInterpolationMethod(boolean interpolation){ |
| 228 |
//GridExtent layer = new GridExtent(0, 0, rasterBuf.getWidth(), rasterBuf.getHeight(), 1);
|
| 229 |
if(interpolation)
|
| 230 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 231 |
else
|
| 232 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
| 233 |
init(null);
|
| 234 |
} |
| 235 |
|
| 236 |
/**
|
| 237 |
* Inicializaci?n de constantes
|
| 238 |
*/
|
| 239 |
private void init(BufferFactory ds){ |
| 240 |
int i;
|
| 241 |
double dCellSize = getCellSize();
|
| 242 |
|
| 243 |
statistic = new GridStatistic(this); |
| 244 |
if(ds == null) |
| 245 |
transparency = new GridTransparency();
|
| 246 |
else{
|
| 247 |
DatasetListTransparency transp = ds.getGeoRasterMultiFile().getTransparencyFilesStatus(); |
| 248 |
if(transp != null) |
| 249 |
transparency = new GridTransparency(transp);
|
| 250 |
this.palette = new GridPalette[ds.getPalettes().length]; |
| 251 |
for(int iPal = 0; iPal < ds.getPalettes().length; iPal++){ |
| 252 |
if(ds.getPalettes()[iPal] != null) |
| 253 |
this.palette[iPal] = new GridPalette(ds.getPalettes()[iPal]); |
| 254 |
} |
| 255 |
} |
| 256 |
filterList = new RasterFilterList();
|
| 257 |
filterList.setInitRasterBuf(rasterBuf); |
| 258 |
|
| 259 |
m_dDist = new double[8]; |
| 260 |
|
| 261 |
for (i = 0; i < 8; i++){ |
| 262 |
m_dDist[i] = Math.sqrt ( m_iOffsetX[i] * dCellSize * m_iOffsetX[i] * dCellSize
|
| 263 |
+ m_iOffsetY[i] * dCellSize * m_iOffsetY[i] * dCellSize ); |
| 264 |
} |
| 265 |
|
| 266 |
_2DX = dCellSize * 2.0;
|
| 267 |
_6DX = dCellSize * 6.0;
|
| 268 |
_DX_2 = dCellSize * dCellSize; |
| 269 |
_4DX_2 = 4.0 * _DX_2;
|
| 270 |
} |
| 271 |
|
| 272 |
//************* Write Services *********************
|
| 273 |
|
| 274 |
/*
|
| 275 |
* (non-Javadoc)
|
| 276 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(byte)
|
| 277 |
*/
|
| 278 |
public void assign(byte value)throws RasterBufferInvalidAccessException{ |
| 279 |
writer.assign(value); |
| 280 |
} |
| 281 |
|
| 282 |
/*
|
| 283 |
* (non-Javadoc)
|
| 284 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(short)
|
| 285 |
*/
|
| 286 |
public void assign(short value)throws RasterBufferInvalidAccessException{ |
| 287 |
writer.assign(value); |
| 288 |
} |
| 289 |
|
| 290 |
/*
|
| 291 |
* (non-Javadoc)
|
| 292 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(int)
|
| 293 |
*/
|
| 294 |
public void assign(int value)throws RasterBufferInvalidAccessException{ |
| 295 |
writer.assign(value); |
| 296 |
} |
| 297 |
|
| 298 |
/*
|
| 299 |
* (non-Javadoc)
|
| 300 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(float)
|
| 301 |
*/
|
| 302 |
public void assign(float value)throws RasterBufferInvalidAccessException{ |
| 303 |
writer.assign(value); |
| 304 |
} |
| 305 |
|
| 306 |
/*
|
| 307 |
* (non-Javadoc)
|
| 308 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(double)
|
| 309 |
*/
|
| 310 |
public void assign(double value)throws RasterBufferInvalidAccessException{ |
| 311 |
writer.assign(value); |
| 312 |
} |
| 313 |
|
| 314 |
/*
|
| 315 |
* (non-Javadoc)
|
| 316 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.dataaccess.BufferFactory)
|
| 317 |
*/
|
| 318 |
public void assign(BufferFactory dataSource)throws RasterBufferInvalidException, OutOfGridException{ |
| 319 |
Grid window = new Grid(dataSource, bands, windowExtent);
|
| 320 |
write(window); |
| 321 |
writer.setNoDataValue(window.getNoDataValue()); |
| 322 |
} |
| 323 |
|
| 324 |
/*
|
| 325 |
* (non-Javadoc)
|
| 326 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.grid.Grid)
|
| 327 |
*/
|
| 328 |
public void assign(Grid driver)throws OutOfGridException{ |
| 329 |
if (driver.getGridExtent().equals(layerExtent)){
|
| 330 |
write(driver); |
| 331 |
writer.setNoDataValue(driver.getNoDataValue()); |
| 332 |
} |
| 333 |
} |
| 334 |
|
| 335 |
/**
|
| 336 |
* Sobreescribe los datos del grid actual con los datos del grid pasado por par?metro
|
| 337 |
* @param g Grid desde donde se obtienen los datos
|
| 338 |
*/
|
| 339 |
private void write(Grid g)throws OutOfGridException{ |
| 340 |
try{
|
| 341 |
switch(rasterBuf.getDataType()){
|
| 342 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++){ |
| 343 |
for (int y = 0; y < g.getNY(); y++){ |
| 344 |
writer.setCellValue(x, y, g.getCellValueAsByte(x, y)); |
| 345 |
} |
| 346 |
} |
| 347 |
break;
|
| 348 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++){ |
| 349 |
for (int y = 0; y < g.getNY(); y++){ |
| 350 |
writer.setCellValue(x, y, g.getCellValueAsShort(x, y)); |
| 351 |
} |
| 352 |
} |
| 353 |
break;
|
| 354 |
case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++){ |
| 355 |
for (int y = 0; y < g.getNY(); y++){ |
| 356 |
writer.setCellValue(x, y, g.getCellValueAsInt(x, y)); |
| 357 |
} |
| 358 |
} |
| 359 |
break;
|
| 360 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++){ |
| 361 |
for (int y = 0; y < g.getNY(); y++){ |
| 362 |
writer.setCellValue(x, y, g.getCellValueAsFloat(x, y)); |
| 363 |
} |
| 364 |
} |
| 365 |
break;
|
| 366 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++){ |
| 367 |
for (int y = 0; y < g.getNY(); y++){ |
| 368 |
writer.setCellValue(x, y, g.getCellValueAsDouble(x, y)); |
| 369 |
} |
| 370 |
} |
| 371 |
break;
|
| 372 |
} |
| 373 |
} catch (OutOfGridException e) {
|
| 374 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
| 375 |
//No hacemos nada para manejar la excepci?n
|
| 376 |
e.printStackTrace(); |
| 377 |
} catch (RasterBufferInvalidAccessException e1) {
|
| 378 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
| 379 |
//No hacemos nada para manejar la excepci?n
|
| 380 |
e1.printStackTrace(); |
| 381 |
} |
| 382 |
} |
| 383 |
|
| 384 |
/*
|
| 385 |
* (non-Javadoc)
|
| 386 |
* @see org.gvsig.fmap.grid.IWritableGrid#assignNoData()
|
| 387 |
*/
|
| 388 |
public void assignNoData(){ |
| 389 |
try {
|
| 390 |
switch(rasterBuf.getDataType()){
|
| 391 |
case IBuffer.TYPE_BYTE: writer.assign((byte)rasterBuf.getNoDataValue());break; |
| 392 |
case IBuffer.TYPE_SHORT: writer.assign((short)rasterBuf.getNoDataValue());break; |
| 393 |
case IBuffer.TYPE_INT: writer.assign((int)rasterBuf.getNoDataValue());break; |
| 394 |
case IBuffer.TYPE_FLOAT: writer.assign((float)rasterBuf.getNoDataValue());break; |
| 395 |
case IBuffer.TYPE_DOUBLE: writer.assign((double)rasterBuf.getNoDataValue());break; |
| 396 |
} |
| 397 |
} catch (RasterBufferInvalidAccessException e) {
|
| 398 |
//No hacemos nada. El tipo de dato al que se accede no es controlado por el usuario por lo
|
| 399 |
//que no le mandamos la excepci?n hacia arriba.
|
| 400 |
e.printStackTrace(); |
| 401 |
} |
| 402 |
} |
| 403 |
|
| 404 |
/*
|
| 405 |
* (non-Javadoc)
|
| 406 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, byte)
|
| 407 |
*/
|
| 408 |
public void setCellValue(int x, int y, byte value)throws OutOfGridException{ |
| 409 |
writer.setCellValue(x, y, value); |
| 410 |
} |
| 411 |
|
| 412 |
/*
|
| 413 |
* (non-Javadoc)
|
| 414 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, short)
|
| 415 |
*/
|
| 416 |
public void setCellValue(int x, int y, short value)throws OutOfGridException{ |
| 417 |
writer.setCellValue(x, y, value); |
| 418 |
} |
| 419 |
|
| 420 |
/*
|
| 421 |
* (non-Javadoc)
|
| 422 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, int)
|
| 423 |
*/
|
| 424 |
public void setCellValue(int x, int y, int value)throws OutOfGridException{ |
| 425 |
writer.setCellValue(x, y, value); |
| 426 |
} |
| 427 |
|
| 428 |
/*
|
| 429 |
* (non-Javadoc)
|
| 430 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, float)
|
| 431 |
*/
|
| 432 |
public void setCellValue(int x, int y, float value)throws OutOfGridException{ |
| 433 |
writer.setCellValue(x, y, value); |
| 434 |
} |
| 435 |
|
| 436 |
/*
|
| 437 |
* (non-Javadoc)
|
| 438 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, double)
|
| 439 |
*/
|
| 440 |
public void setCellValue(int x, int y, double value)throws OutOfGridException{ |
| 441 |
writer.setCellValue(x, y, value); |
| 442 |
} |
| 443 |
|
| 444 |
/*
|
| 445 |
* (non-Javadoc)
|
| 446 |
* @see org.gvsig.fmap.grid.IWritableGrid#add(org.gvsig.fmap.grid.Grid)
|
| 447 |
*/
|
| 448 |
public void add(Grid g){ |
| 449 |
if (g.getGridExtent().equals(getGridExtent())){
|
| 450 |
boolean interp = (reader instanceof GridInterpolated); |
| 451 |
switchToInterpolationMethod(false);
|
| 452 |
try{
|
| 453 |
switch(rasterBuf.getDataType()){
|
| 454 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++){ |
| 455 |
for (int y = 0; y < g.getNY(); y++){ |
| 456 |
writer.setCellValue(x, y, reader.getCellValueAsByte(x, y) + g.getCellValueAsByte(x,y)); |
| 457 |
} |
| 458 |
} |
| 459 |
break;
|
| 460 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++){ |
| 461 |
for (int y = 0; y < g.getNY(); y++){ |
| 462 |
writer.setCellValue(x, y, reader.getCellValueAsShort(x, y) + g.getCellValueAsShort(x,y)); |
| 463 |
} |
| 464 |
} |
| 465 |
break;
|
| 466 |
case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++){ |
| 467 |
for (int y = 0; y < g.getNY(); y++){ |
| 468 |
writer.setCellValue(x, y, reader.getCellValueAsInt(x, y) + g.getCellValueAsInt(x,y)); |
| 469 |
} |
| 470 |
} |
| 471 |
break;
|
| 472 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++){ |
| 473 |
for (int y = 0; y < g.getNY(); y++){ |
| 474 |
writer.setCellValue(x, y, reader.getCellValueAsFloat(x, y) + g.getCellValueAsFloat(x,y)); |
| 475 |
} |
| 476 |
} |
| 477 |
break;
|
| 478 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++){ |
| 479 |
for (int y = 0; y < g.getNY(); y++){ |
| 480 |
writer.setCellValue(x, y, reader.getCellValueAsDouble(x, y) + g.getCellValueAsDouble(x,y)); |
| 481 |
} |
| 482 |
} |
| 483 |
break;
|
| 484 |
} |
| 485 |
} catch (OutOfGridException e) {
|
| 486 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
| 487 |
//No hacemos nada para manejar la excepci?n
|
| 488 |
e.printStackTrace(); |
| 489 |
} catch (RasterBufferInvalidAccessException e1) {
|
| 490 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
| 491 |
//No hacemos nada para manejar la excepci?n
|
| 492 |
e1.printStackTrace(); |
| 493 |
} |
| 494 |
//Restauramos el reader que hab?a
|
| 495 |
switchToInterpolationMethod(interp); |
| 496 |
} |
| 497 |
} |
| 498 |
|
| 499 |
/*
|
| 500 |
* (non-Javadoc)
|
| 501 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, byte)
|
| 502 |
*/
|
| 503 |
public void addToCellValue(int x, int y, byte value) |
| 504 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
| 505 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) + value));
|
| 506 |
} |
| 507 |
|
| 508 |
/*
|
| 509 |
* (non-Javadoc)
|
| 510 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, short)
|
| 511 |
*/
|
| 512 |
public void addToCellValue(int x, int y, short value) |
| 513 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
| 514 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) + value));
|
| 515 |
} |
| 516 |
|
| 517 |
/*
|
| 518 |
* (non-Javadoc)
|
| 519 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, int)
|
| 520 |
*/
|
| 521 |
public void addToCellValue(int x, int y, int value) |
| 522 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
| 523 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) + value));
|
| 524 |
} |
| 525 |
|
| 526 |
/*
|
| 527 |
* (non-Javadoc)
|
| 528 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, float)
|
| 529 |
*/
|
| 530 |
public void addToCellValue(int x, int y, float value) |
| 531 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
| 532 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) + value));
|
| 533 |
} |
| 534 |
|
| 535 |
/*
|
| 536 |
* (non-Javadoc)
|
| 537 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, double)
|
| 538 |
*/
|
| 539 |
public void addToCellValue(int x, int y, double value) |
| 540 |
throws OutOfGridException, RasterBufferInvalidAccessException{
|
| 541 |
writer.setCellValue(x, y, (double)(reader.getCellValueAsDouble(x, y) + value));
|
| 542 |
} |
| 543 |
|
| 544 |
/*
|
| 545 |
* (non-Javadoc)
|
| 546 |
* @see org.gvsig.fmap.grid.IWritableGrid#multiply(double)
|
| 547 |
*/
|
| 548 |
public void multiply(double value){ |
| 549 |
boolean interp = (reader instanceof GridInterpolated); |
| 550 |
switchToInterpolationMethod(false);
|
| 551 |
try{
|
| 552 |
switch(rasterBuf.getDataType()){
|
| 553 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < getNX(); x++){ |
| 554 |
for (int y = 0; y < getNY(); y++) |
| 555 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) * value));
|
| 556 |
} |
| 557 |
break;
|
| 558 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < getNX(); x++){ |
| 559 |
for (int y = 0; y < getNY(); y++) |
| 560 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) * value));
|
| 561 |
} |
| 562 |
break;
|
| 563 |
case IBuffer.TYPE_INT: for (int x = 0; x < getNX(); x++){ |
| 564 |
for (int y = 0; y < getNY(); y++) |
| 565 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) * value));
|
| 566 |
} |
| 567 |
break;
|
| 568 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < getNX(); x++){ |
| 569 |
for (int y = 0; y < getNY(); y++) |
| 570 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) * value));
|
| 571 |
} |
| 572 |
break;
|
| 573 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < getNX(); x++){ |
| 574 |
for (int y = 0; y < getNY(); y++) |
| 575 |
writer.setCellValue(x, y, (double)(reader.getCellValueAsDouble(x, y) * value));
|
| 576 |
} |
| 577 |
break;
|
| 578 |
} |
| 579 |
} catch (OutOfGridException e) {
|
| 580 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
| 581 |
//No hacemos nada para manejar la excepci?n
|
| 582 |
e.printStackTrace(); |
| 583 |
} catch (RasterBufferInvalidAccessException e1) {
|
| 584 |
//No es probable que se salga fuera ya que el bucle se controla dentro de la misma funci?n
|
| 585 |
//No hacemos nada para manejar la excepci?n
|
| 586 |
e1.printStackTrace(); |
| 587 |
} |
| 588 |
//Restauramos el reader que hab?a
|
| 589 |
switchToInterpolationMethod(interp); |
| 590 |
} |
| 591 |
|
| 592 |
/*
|
| 593 |
* (non-Javadoc)
|
| 594 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoDataValue(double)
|
| 595 |
*/
|
| 596 |
public void setNoDataValue(double dNoDataValue){ |
| 597 |
writer.setNoDataValue((float) dNoDataValue);
|
| 598 |
} |
| 599 |
|
| 600 |
/*
|
| 601 |
* (non-Javadoc)
|
| 602 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoData(int, int)
|
| 603 |
*/
|
| 604 |
public void setNoData(int x, int y){ |
| 605 |
writer.setNoData(x,y); |
| 606 |
} |
| 607 |
|
| 608 |
public void ExportToArcViewASCIIFile(String sFilename){ |
| 609 |
try {
|
| 610 |
writer.ExportToArcViewASCIIFile(sFilename); |
| 611 |
} catch (NumberFormatException e) { |
| 612 |
e.printStackTrace(); |
| 613 |
} catch (IOException e) { |
| 614 |
e.printStackTrace(); |
| 615 |
} |
| 616 |
} |
| 617 |
|
| 618 |
//************* Query Services *********************
|
| 619 |
|
| 620 |
/*
|
| 621 |
* (non-Javadoc)
|
| 622 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isNoDataValue(double)
|
| 623 |
*/
|
| 624 |
public boolean isNoDataValue(double noDataValue){ |
| 625 |
return (reader.getNoDataValue() == noDataValue);
|
| 626 |
} |
| 627 |
|
| 628 |
/*
|
| 629 |
* (non-Javadoc)
|
| 630 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isInGrid(int, int)
|
| 631 |
*/
|
| 632 |
public boolean isInGrid(int x, int y){ |
| 633 |
return reader.isCellInGrid(x, y);
|
| 634 |
} |
| 635 |
|
| 636 |
/*
|
| 637 |
* (non-Javadoc)
|
| 638 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellSize()
|
| 639 |
*/
|
| 640 |
public double getCellSize() { |
| 641 |
return reader.getCellSize();
|
| 642 |
} |
| 643 |
|
| 644 |
/*
|
| 645 |
* (non-Javadoc)
|
| 646 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsByte(int, int)
|
| 647 |
*/
|
| 648 |
public byte getCellValueAsByte(int x, int y)throws RasterBufferInvalidAccessException { |
| 649 |
return reader.getCellValueAsByte(x, y);
|
| 650 |
} |
| 651 |
|
| 652 |
/*
|
| 653 |
* (non-Javadoc)
|
| 654 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsShort(int, int)
|
| 655 |
*/
|
| 656 |
public short getCellValueAsShort(int x, int y)throws RasterBufferInvalidAccessException { |
| 657 |
return (short) reader.getCellValueAsShort(x, y); |
| 658 |
} |
| 659 |
|
| 660 |
/*
|
| 661 |
* (non-Javadoc)
|
| 662 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsInt(int, int)
|
| 663 |
*/
|
| 664 |
public int getCellValueAsInt(int x, int y)throws RasterBufferInvalidAccessException { |
| 665 |
return (int) reader.getCellValueAsInt(x, y); |
| 666 |
} |
| 667 |
|
| 668 |
/*
|
| 669 |
* (non-Javadoc)
|
| 670 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsFloat(int, int)
|
| 671 |
*/
|
| 672 |
public float getCellValueAsFloat(int x, int y)throws RasterBufferInvalidAccessException { |
| 673 |
return reader.getCellValueAsFloat(x, y);
|
| 674 |
} |
| 675 |
|
| 676 |
/*
|
| 677 |
* (non-Javadoc)
|
| 678 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
| 679 |
*/
|
| 680 |
public double getCellValueAsDouble(int x, int y)throws RasterBufferInvalidAccessException { |
| 681 |
return (double) reader.getCellValueAsDouble(x, y); |
| 682 |
} |
| 683 |
|
| 684 |
/*
|
| 685 |
* (non-Javadoc)
|
| 686 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNoDataValue()
|
| 687 |
*/
|
| 688 |
public double getNoDataValue(){ |
| 689 |
return (double) rasterBuf.getNoDataValue(); |
| 690 |
} |
| 691 |
|
| 692 |
/*
|
| 693 |
* (non-Javadoc)
|
| 694 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMinValue()
|
| 695 |
*/
|
| 696 |
public double getMinValue(){ |
| 697 |
if (!statistic.isStatisticsCalculated())
|
| 698 |
try {
|
| 699 |
statistic.calculateStatistics(); |
| 700 |
} catch (RasterBufferInvalidAccessException e) {
|
| 701 |
//No se calculan las estad?sticas. No hacemos nada
|
| 702 |
e.printStackTrace(); |
| 703 |
} |
| 704 |
return statistic.getMin();
|
| 705 |
} |
| 706 |
|
| 707 |
/*
|
| 708 |
* (non-Javadoc)
|
| 709 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMaxValue()
|
| 710 |
*/
|
| 711 |
public double getMaxValue(){ |
| 712 |
if (!statistic.isStatisticsCalculated())
|
| 713 |
try {
|
| 714 |
statistic.calculateStatistics(); |
| 715 |
} catch (RasterBufferInvalidAccessException e) {
|
| 716 |
//No se calculan las estad?sticas. No hacemos nada
|
| 717 |
e.printStackTrace(); |
| 718 |
} |
| 719 |
return statistic.getMin();
|
| 720 |
} |
| 721 |
|
| 722 |
/*
|
| 723 |
* (non-Javadoc)
|
| 724 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMeanValue()
|
| 725 |
*/
|
| 726 |
public double getMeanValue(){ |
| 727 |
if (!statistic.isStatisticsCalculated())
|
| 728 |
try {
|
| 729 |
statistic.calculateStatistics(); |
| 730 |
} catch (RasterBufferInvalidAccessException e) {
|
| 731 |
//No se calculan las estad?sticas. No hacemos nada
|
| 732 |
e.printStackTrace(); |
| 733 |
} |
| 734 |
return statistic.getMin();
|
| 735 |
} |
| 736 |
|
| 737 |
/*
|
| 738 |
* (non-Javadoc)
|
| 739 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getVariance()
|
| 740 |
*/
|
| 741 |
public double getVariance(){ |
| 742 |
if (!statistic.isStatisticsCalculated())
|
| 743 |
try {
|
| 744 |
statistic.calculateStatistics(); |
| 745 |
} catch (RasterBufferInvalidAccessException e) {
|
| 746 |
//No se calculan las estad?sticas. No hacemos nada
|
| 747 |
e.printStackTrace(); |
| 748 |
} |
| 749 |
return statistic.getVariance();
|
| 750 |
} |
| 751 |
|
| 752 |
/*
|
| 753 |
* (non-Javadoc)
|
| 754 |
* @see org.gvsig.fmap.grid.IQueryableGrid#setInterpolationMethod(int)
|
| 755 |
*/
|
| 756 |
public void setInterpolationMethod(int iMethod){ |
| 757 |
if (reader instanceof GridInterpolated) |
| 758 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
| 759 |
else{
|
| 760 |
this.switchToInterpolationMethod(true); |
| 761 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
| 762 |
} |
| 763 |
} |
| 764 |
|
| 765 |
/*
|
| 766 |
* (non-Javadoc)
|
| 767 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNX()
|
| 768 |
*/
|
| 769 |
public int getNX(){ |
| 770 |
return reader.getNX();
|
| 771 |
} |
| 772 |
|
| 773 |
/*
|
| 774 |
* (non-Javadoc)
|
| 775 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNY()
|
| 776 |
*/
|
| 777 |
public int getNY(){ |
| 778 |
return reader.getNY();
|
| 779 |
} |
| 780 |
|
| 781 |
/*
|
| 782 |
* (non-Javadoc)
|
| 783 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNX()
|
| 784 |
*/
|
| 785 |
public int getLayerNX(){ |
| 786 |
return layerExtent.getNX();
|
| 787 |
} |
| 788 |
|
| 789 |
/*
|
| 790 |
* (non-Javadoc)
|
| 791 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNY()
|
| 792 |
*/
|
| 793 |
public int getLayerNY(){ |
| 794 |
return layerExtent.getNY();
|
| 795 |
} |
| 796 |
|
| 797 |
/*
|
| 798 |
* (non-Javadoc)
|
| 799 |
* @see org.gvsig.fmap.grid.IWritableGrid#getGridExtent()
|
| 800 |
*/
|
| 801 |
/*public GridExtent getGridExtent(){
|
| 802 |
return windowExtent;
|
| 803 |
}*/
|
| 804 |
|
| 805 |
public int getDataType(){ |
| 806 |
return dataType;
|
| 807 |
} |
| 808 |
|
| 809 |
private boolean getSubMatrix3x3(int x, int y, double SubMatrix[])throws RasterBufferInvalidAccessException{ |
| 810 |
int i;
|
| 811 |
int iDir;
|
| 812 |
double z, z2;
|
| 813 |
|
| 814 |
z = getCellValueAsDouble(x, y); |
| 815 |
|
| 816 |
if(isNoDataValue(z)){
|
| 817 |
return false; |
| 818 |
} |
| 819 |
else{
|
| 820 |
//SubMatrix[4] = 0.0;
|
| 821 |
for(i=0; i<4; i++){ |
| 822 |
|
| 823 |
iDir = 2 * i;
|
| 824 |
z2 = getCellValueAsDouble(x + m_iOffsetX[iDir], y + m_iOffsetY[iDir]); |
| 825 |
if( !isNoDataValue(z2)){
|
| 826 |
SubMatrix[i] = z2 - z; |
| 827 |
} |
| 828 |
else{
|
| 829 |
z2 = getCellValueAsDouble(x + m_iOffsetX[(iDir + 4) % 8], y + m_iOffsetY[(iDir + 4) % 8]); |
| 830 |
if( !isNoDataValue(z2)){
|
| 831 |
SubMatrix[i] = z - z2; |
| 832 |
} |
| 833 |
else{
|
| 834 |
SubMatrix[i] = 0.0;
|
| 835 |
} |
| 836 |
} |
| 837 |
} |
| 838 |
|
| 839 |
return true; |
| 840 |
} |
| 841 |
} |
| 842 |
|
| 843 |
public double getSlope(int x, int y)throws RasterBufferInvalidAccessException{ |
| 844 |
double zm[], G, H; |
| 845 |
|
| 846 |
zm = new double[4]; |
| 847 |
|
| 848 |
if( getSubMatrix3x3(x, y, zm) ){
|
| 849 |
G = (zm[0] - zm[2]) / _2DX; |
| 850 |
H = (zm[1] - zm[3]) / _2DX; |
| 851 |
return Math.atan(Math.sqrt(G*G + H*H)); |
| 852 |
} |
| 853 |
else{
|
| 854 |
return rasterBuf.getNoDataValue();
|
| 855 |
} |
| 856 |
} |
| 857 |
|
| 858 |
public double getAspect(int x, int y)throws RasterBufferInvalidAccessException{ |
| 859 |
double zm[], G, H, dAspect; |
| 860 |
|
| 861 |
zm = new double[4]; |
| 862 |
|
| 863 |
if( getSubMatrix3x3(x, y, zm) ){
|
| 864 |
G = (zm[0] - zm[2]) / _2DX; |
| 865 |
H = (zm[1] - zm[3]) / _2DX; |
| 866 |
if( G != 0.0 ) |
| 867 |
dAspect = DEG_180_IN_RAD + Math.atan2(H, G);
|
| 868 |
else
|
| 869 |
dAspect = H > 0.0 ? DEG_270_IN_RAD : (H < 0.0 ? DEG_90_IN_RAD : -1.0); |
| 870 |
return dAspect;
|
| 871 |
} |
| 872 |
else
|
| 873 |
return rasterBuf.getNoDataValue();
|
| 874 |
} |
| 875 |
|
| 876 |
public static int getXOffsetInDir(int iDir){ |
| 877 |
return m_iOffsetX[iDir];
|
| 878 |
} |
| 879 |
|
| 880 |
public static int getYOffsetInDir(int iDir){ |
| 881 |
return m_iOffsetY[iDir];
|
| 882 |
} |
| 883 |
|
| 884 |
public double getDistToNeighborInDir(int iDir){ |
| 885 |
return m_dDist[iDir];
|
| 886 |
} |
| 887 |
|
| 888 |
public static double getUnitDistToNeighborInDir(int iDir){ |
| 889 |
return( (iDir % 2 != 0) ? Math.sqrt(2.0) : 1.0 ); |
| 890 |
} |
| 891 |
|
| 892 |
/*
|
| 893 |
* (non-Javadoc)
|
| 894 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int)
|
| 895 |
*/
|
| 896 |
public int getDirToNextDownslopeCell(int x, int y)throws RasterBufferInvalidAccessException{ |
| 897 |
return getDirToNextDownslopeCell(x, y, true); |
| 898 |
} |
| 899 |
|
| 900 |
/*
|
| 901 |
* (non-Javadoc)
|
| 902 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int, boolean)
|
| 903 |
*/
|
| 904 |
public int getDirToNextDownslopeCell(int x, int y, boolean bForceDirToNoDataCell) |
| 905 |
throws RasterBufferInvalidAccessException{
|
| 906 |
|
| 907 |
int i, iDir;
|
| 908 |
double z, z2, dSlope, dMaxSlope;
|
| 909 |
|
| 910 |
z = getCellValueAsDouble(x, y); |
| 911 |
|
| 912 |
if(isNoDataValue(z)){
|
| 913 |
return -1; |
| 914 |
} |
| 915 |
|
| 916 |
dMaxSlope = 0.0;
|
| 917 |
for(iDir=-1, i=0; i<8; i++){ |
| 918 |
z2 = getCellValueAsDouble(x + m_iOffsetX[i], y + m_iOffsetY[i]); |
| 919 |
if(isNoDataValue(z2)){
|
| 920 |
if (bForceDirToNoDataCell){
|
| 921 |
return i;
|
| 922 |
} |
| 923 |
else{
|
| 924 |
return -1; |
| 925 |
} |
| 926 |
} |
| 927 |
else{
|
| 928 |
dSlope = (z - z2) / getDistToNeighborInDir(i); |
| 929 |
if( dSlope > dMaxSlope ){
|
| 930 |
iDir = i; |
| 931 |
dMaxSlope = dSlope; |
| 932 |
} |
| 933 |
} |
| 934 |
} |
| 935 |
|
| 936 |
return iDir;
|
| 937 |
|
| 938 |
} |
| 939 |
|
| 940 |
public GridCell[] getSortedArrayOfCells()throws RasterBufferInvalidAccessException{ |
| 941 |
int i;
|
| 942 |
int iX,iY;
|
| 943 |
int iNX = getNX();
|
| 944 |
int iCells = getNX() * getNY();
|
| 945 |
GridCell [] cells = null; |
| 946 |
GridCell cell = null;
|
| 947 |
|
| 948 |
cells = new GridCell[iCells];
|
| 949 |
|
| 950 |
for (i = 0; i < iCells; i++){ |
| 951 |
iX = i % iNX; |
| 952 |
iY = i / iNX; |
| 953 |
switch(getDataType()){
|
| 954 |
case IBuffer.TYPE_BYTE: cell = new GridCell(iX, iY, getCellValueAsByte(iX, iY)); break; |
| 955 |
case IBuffer.TYPE_SHORT: cell = new GridCell(iX, iY, getCellValueAsShort(iX, iY)); break; |
| 956 |
case IBuffer.TYPE_INT: cell = new GridCell(iX, iY, getCellValueAsInt(iX, iY)); break; |
| 957 |
case IBuffer.TYPE_FLOAT: cell = new GridCell(iX, iY, getCellValueAsFloat(iX, iY)); break; |
| 958 |
case IBuffer.TYPE_DOUBLE: cell = new GridCell(iX, iY, getCellValueAsDouble(iX, iY)); break; |
| 959 |
} |
| 960 |
|
| 961 |
cells[i] = cell; |
| 962 |
} |
| 963 |
|
| 964 |
Arrays.sort(cells);
|
| 965 |
|
| 966 |
return cells;
|
| 967 |
} |
| 968 |
|
| 969 |
/**
|
| 970 |
* Obtiene el estado de transparencia
|
| 971 |
* @return Objeto con el estado de transparencia del grid
|
| 972 |
*/
|
| 973 |
public GridTransparency getTransparency() {
|
| 974 |
return transparency;
|
| 975 |
} |
| 976 |
|
| 977 |
/**
|
| 978 |
* Asigna el estado de transparencia
|
| 979 |
* @param Objeto con el estado de transparencia del grid
|
| 980 |
*/
|
| 981 |
public void setTransparency(GridTransparency transparency) { |
| 982 |
this.transparency = transparency;
|
| 983 |
} |
| 984 |
|
| 985 |
/**
|
| 986 |
* Obtiene la paleta para el caso de un MDT. Esta funci?n evita el tener que obtener
|
| 987 |
* un array de paletas y buscar en el cuando se trata de un caso simple de MDT de una
|
| 988 |
* sola banda. Comprueba que se trata de un raster monobanda con paleta asociada antes
|
| 989 |
* de devolverla.
|
| 990 |
* @return GridPalette asociada al Grid
|
| 991 |
*/
|
| 992 |
public GridPalette getMDTPalette(){
|
| 993 |
if( rasterBuf != null && |
| 994 |
rasterBuf.getBandCount() == 1 &&
|
| 995 |
palette != null)
|
| 996 |
return palette[0]; |
| 997 |
return null; |
| 998 |
} |
| 999 |
|
| 1000 |
/**
|
| 1001 |
* Obtiene la lista de paletas asociadas al grid
|
| 1002 |
* @return Lista de objetos GridPalette
|
| 1003 |
*/
|
| 1004 |
public GridPalette[] getPalettes() { |
| 1005 |
return palette;
|
| 1006 |
} |
| 1007 |
|
| 1008 |
/**
|
| 1009 |
* Asigna la lista de paletas asociadas al grid
|
| 1010 |
* @param palette Lista de objetos GridPalette
|
| 1011 |
*/
|
| 1012 |
public void setPalettes(GridPalette[] palette) { |
| 1013 |
this.palette = palette;
|
| 1014 |
} |
| 1015 |
|
| 1016 |
/**
|
| 1017 |
* Obtiene la lista de filtros.
|
| 1018 |
* @return Lista de filtros.
|
| 1019 |
*/
|
| 1020 |
public RasterFilterList getFilterList(){
|
| 1021 |
return filterList;
|
| 1022 |
} |
| 1023 |
|
| 1024 |
/**
|
| 1025 |
* Asigna la lista de filtros
|
| 1026 |
* @param filterList
|
| 1027 |
*/
|
| 1028 |
public void setFilterList(RasterFilterList filterList){ |
| 1029 |
this.filterList = filterList;
|
| 1030 |
} |
| 1031 |
|
| 1032 |
/**
|
| 1033 |
*Aplica la lista de filtros sobre el buffer
|
| 1034 |
*/
|
| 1035 |
public void applyFilters(){ |
| 1036 |
if(filterList == null) |
| 1037 |
return;
|
| 1038 |
filterList.setInitRasterBuf(rasterBuf); |
| 1039 |
filterList.execute(); |
| 1040 |
rasterBuf = (RasterBuffer)filterList.getResult(); |
| 1041 |
dataType = rasterBuf.getDataType(); |
| 1042 |
} |
| 1043 |
|
| 1044 |
/**
|
| 1045 |
* Obtiene el buffer de datos del grid
|
| 1046 |
* @return RasterBuf
|
| 1047 |
*/
|
| 1048 |
public IBuffer getRasterBuf() {
|
| 1049 |
return rasterBuf;
|
| 1050 |
} |
| 1051 |
|
| 1052 |
/**
|
| 1053 |
* Asigna la banda sobre la que se realizan las operaciones. Por defecto es la banda 0
|
| 1054 |
* con lo que para el uso de MDTs no habr? que modificar este valor.
|
| 1055 |
* @param band Banda sobre la que se realizan las operaciones.
|
| 1056 |
*/
|
| 1057 |
public void setBandToOperate(int band){ |
| 1058 |
if(writer != null) |
| 1059 |
writer.setBandToOperate(band); |
| 1060 |
if(reader != null) |
| 1061 |
reader.setBandToOperate(band); |
| 1062 |
} |
| 1063 |
|
| 1064 |
/**
|
| 1065 |
* Obtiene el extent de la ventana seleccionada para petici?n de datos
|
| 1066 |
* @return GridExtent
|
| 1067 |
*/
|
| 1068 |
public GridExtent getWindowExtent(){
|
| 1069 |
return windowExtent;
|
| 1070 |
} |
| 1071 |
|
| 1072 |
/**
|
| 1073 |
* Obtiene el extent del grid para petici?n de datos
|
| 1074 |
* @return GridExtent
|
| 1075 |
*/
|
| 1076 |
public GridExtent getGridExtent(){
|
| 1077 |
return layerExtent;
|
| 1078 |
} |
| 1079 |
} |