root / trunk / libraries / libRaster / src / org / gvsig / raster / grid / Grid.java @ 20871
History | View | Annotate | Download (36.6 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 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
113 |
|
114 |
if (windowExtent.fitsIn(layerExtent))
|
115 |
reader = new GridNotInterpolated(bufferFactory, layerExtent, windowExtent, bands);
|
116 |
else
|
117 |
reader = new GridInterpolated(bufferFactory, layerExtent, windowExtent, bands);
|
118 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
119 |
|
120 |
init(bufferFactory); |
121 |
} |
122 |
|
123 |
/**
|
124 |
* Crea un grid vacio a partir de un extent y un tipo de datos. Se crea un buffer vacio en el
|
125 |
* que puede escribirse a trav?s del writer. Los datos escritos pueden ser consultados con el
|
126 |
* reader. No tiene una fuente de datos asociada ya que es un grid vacio basicamente para
|
127 |
* escritura.
|
128 |
* @param layerExtent Tama?o completo de la capa
|
129 |
* @param windowExtent Ventana de datos.
|
130 |
* @param dataType Tipo de datos del buffer
|
131 |
* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
|
132 |
*/
|
133 |
public Grid(GridExtent layerExtent,
|
134 |
GridExtent windowExtent, |
135 |
int dataType,
|
136 |
int[] bands) throws RasterBufferInvalidException{ |
137 |
this.windowExtent = windowExtent;
|
138 |
this.layerExtent = layerExtent;
|
139 |
this.dataType = dataType;
|
140 |
|
141 |
rasterBuf = RasterBuffer.getBuffer(dataType, layerExtent.getNX(), layerExtent.getNY(), bands.length, true);
|
142 |
|
143 |
if (windowExtent.fitsIn(layerExtent))
|
144 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
145 |
else
|
146 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
147 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
148 |
init(null);
|
149 |
} |
150 |
|
151 |
/**
|
152 |
* Crea un grid a partir de un BufferFactory. El buffer debe estar cargado de datos y el extent
|
153 |
* de este viene definido en el par?metro windowExtent.
|
154 |
* @param bufferFactory Fuente de datos
|
155 |
* @param windowExtent Extent de los datos cargados en bufferFactory
|
156 |
* @param notInterp Si es true fuerza a que el reader sea sin interpolaci?n. Si es false decide si
|
157 |
* el reader es interpolado o no a partir de los extents de capa y la ventana seleccionada.
|
158 |
*/
|
159 |
public Grid(BufferFactory bufferFactory, boolean notInterp) { |
160 |
double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(), |
161 |
bufferFactory.getSourceHeight()); |
162 |
this.layerExtent = new GridExtent( bufferFactory.getDataSource().getExtent(), |
163 |
cellSize[0],
|
164 |
cellSize[1]);
|
165 |
if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null) |
166 |
dataType = bufferFactory.getDataSource().getDataType()[0];
|
167 |
bands = bufferFactory.getDrawableBands(); |
168 |
|
169 |
this.windowExtent = new GridExtent( bufferFactory.getDataExtent(), |
170 |
cellSize[0],
|
171 |
cellSize[1]);
|
172 |
|
173 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
174 |
|
175 |
if(notInterp) {
|
176 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
177 |
} else {
|
178 |
if (windowExtent.fitsIn(layerExtent))
|
179 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
180 |
else
|
181 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
182 |
} |
183 |
writer = new GridWriter(layerExtent, dataType, rasterBuf);
|
184 |
init(bufferFactory); |
185 |
} |
186 |
|
187 |
/**
|
188 |
* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
|
189 |
* bufferFactory tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
|
190 |
* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo.
|
191 |
* @param bufferFactory Fuente de datos
|
192 |
* @param bands n?mero de bandas requeridas y orden de dibujado en el buffer
|
193 |
*/
|
194 |
public Grid(BufferFactory bufferFactory, int[] bands) |
195 |
throws RasterBufferInvalidException{
|
196 |
//La petici?n es del raster completo
|
197 |
double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(), |
198 |
bufferFactory.getSourceHeight()); |
199 |
windowExtent = layerExtent = new GridExtent(bufferFactory.getDataSource().getExtent(),
|
200 |
cellSize[0],
|
201 |
cellSize[1]);
|
202 |
if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null) |
203 |
dataType = bufferFactory.getDataSource().getDataType()[0];
|
204 |
this.bands = bands;
|
205 |
|
206 |
reader = new GridNotInterpolated(bufferFactory, layerExtent, windowExtent, bands);
|
207 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
208 |
writer = new GridWriter(windowExtent, dataType, rasterBuf);
|
209 |
|
210 |
init(bufferFactory); |
211 |
} |
212 |
|
213 |
/**
|
214 |
* Crea un grid a partir de un BufferFactory. Se har? una petici?n del extent completo de la fuente.
|
215 |
* bufferFactory tiene asociada una fuente de datos pero se ignorar? si tiene el buffer lleno. La instanciaci?n
|
216 |
* de GridNotInterpolated har? que se haga la petici?n para cargar raster completo. El buffer se cargar?
|
217 |
* con todas las bandas disponibles.
|
218 |
* @param bufferFactory Fuente de datos
|
219 |
*/
|
220 |
public Grid(BufferFactory bufferFactory) throws RasterBufferInvalidException { |
221 |
//La petici?n es del raster completo
|
222 |
double cellSize[] = calcCellSize(bufferFactory.getDataSource(), bufferFactory.getSourceWidth(), |
223 |
bufferFactory.getSourceHeight()); |
224 |
windowExtent = layerExtent = new GridExtent(bufferFactory.getDataSource().getExtent(),
|
225 |
cellSize[0],
|
226 |
cellSize[1]);
|
227 |
if(bufferFactory.getDataSource() != null && bufferFactory.getDataSource().getDataType() != null) |
228 |
dataType = bufferFactory.getDataSource().getDataType()[0];
|
229 |
|
230 |
bands = new int[bufferFactory.getBandCount()]; |
231 |
for(int i = 0; i < bufferFactory.getBandCount(); i ++) |
232 |
bands[i] = i; |
233 |
reader = new GridNotInterpolated(bufferFactory, layerExtent, windowExtent, bands);
|
234 |
rasterBuf = (RasterBuffer)bufferFactory.getRasterBuf(); |
235 |
writer = new GridWriter(windowExtent, dataType, rasterBuf);
|
236 |
|
237 |
init(bufferFactory); |
238 |
} |
239 |
|
240 |
/**
|
241 |
* Calcula el tama?o de celda a partir de un dataset, un ancho y un alto en pixeles
|
242 |
* @return
|
243 |
*/
|
244 |
private double[] calcCellSize(IRasterDataSource mDataset, double w, double h) { |
245 |
double dCellsize[] = new double[2]; |
246 |
try {
|
247 |
Extent e = mDataset.getExtent(); |
248 |
dCellsize[0] = (e.getMax().getX() - e.getMin().getX() ) / w;
|
249 |
dCellsize[1] = (e.getMax().getY() - e.getMin().getY() ) / h;
|
250 |
|
251 |
return dCellsize;
|
252 |
} catch (NullPointerException e) { |
253 |
dCellsize[0] = 1; |
254 |
dCellsize[1] = 1; |
255 |
return dCellsize;
|
256 |
} |
257 |
} |
258 |
|
259 |
/**
|
260 |
* Selecciona la forma de obtener datos con o sin interpolaci?n. Si pasamos el par?metro
|
261 |
* false al aplicar un m?todo de consulta de datos este ser? aplicado sin interpolaci?n.
|
262 |
* @param interpolation
|
263 |
*/
|
264 |
public void switchToInterpolationMethod(boolean interpolation){ |
265 |
//GridExtent layer = new GridExtent(0, 0, rasterBuf.getWidth(), rasterBuf.getHeight(), 1);
|
266 |
if(interpolation)
|
267 |
reader = new GridInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
268 |
else
|
269 |
reader = new GridNotInterpolated(rasterBuf, layerExtent, windowExtent, bands);
|
270 |
init(null);
|
271 |
} |
272 |
|
273 |
/**
|
274 |
* Inicializaci?n de constantes
|
275 |
*/
|
276 |
private void init(BufferFactory ds) { |
277 |
int i;
|
278 |
GridTransparency transparency = null;
|
279 |
|
280 |
double dCellSize = getCellSize();
|
281 |
|
282 |
statistic = new GridStatistic(this); |
283 |
if (ds == null) |
284 |
transparency = new GridTransparency();
|
285 |
else {
|
286 |
Transparency transp = ds.getDataSource().getTransparencyFilesStatus();
|
287 |
if (transp != null) |
288 |
transparency = new GridTransparency(transp);
|
289 |
this.palette = new GridPalette[ds.getColorTables().length]; |
290 |
for (int iPal = 0; iPal < ds.getColorTables().length; iPal++) { |
291 |
if (ds.getColorTables()[iPal] != null) |
292 |
this.palette[iPal] = new GridPalette(ds.getColorTables()[iPal]); |
293 |
} |
294 |
} |
295 |
filterList = new RasterFilterList();
|
296 |
if (ds != null) { |
297 |
filterList.addEnvParam("IStatistics", ds.getDataSource().getStatistics());
|
298 |
filterList.addEnvParam("MultiRasterDataset", ds.getDataSource());
|
299 |
} |
300 |
filterList.addEnvParam("Transparency", transparency);
|
301 |
filterList.setInitRasterBuf(rasterBuf); |
302 |
|
303 |
m_dDist = new double[8]; |
304 |
|
305 |
for (i = 0; i < 8; i++) { |
306 |
m_dDist[i] = Math.sqrt ( m_iOffsetX[i] * dCellSize * m_iOffsetX[i] * dCellSize
|
307 |
+ m_iOffsetY[i] * dCellSize * m_iOffsetY[i] * dCellSize ); |
308 |
} |
309 |
|
310 |
_2DX = dCellSize * 2.0;
|
311 |
_6DX = dCellSize * 6.0;
|
312 |
_DX_2 = dCellSize * dCellSize; |
313 |
_4DX_2 = 4.0 * _DX_2;
|
314 |
} |
315 |
|
316 |
//************* Write Services *********************
|
317 |
|
318 |
/*
|
319 |
* (non-Javadoc)
|
320 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(byte)
|
321 |
*/
|
322 |
public void assign(byte value)throws GridException { |
323 |
try {
|
324 |
writer.assign(value); |
325 |
} catch (RasterBufferInvalidAccessException e) {
|
326 |
throw new GridException("Error wrinting buffer"); |
327 |
} |
328 |
} |
329 |
|
330 |
/*
|
331 |
* (non-Javadoc)
|
332 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(short)
|
333 |
*/
|
334 |
public void assign(short value)throws GridException { |
335 |
try {
|
336 |
writer.assign(value); |
337 |
} catch (RasterBufferInvalidAccessException e) {
|
338 |
throw new GridException("Error wrinting buffer"); |
339 |
} |
340 |
} |
341 |
|
342 |
/*
|
343 |
* (non-Javadoc)
|
344 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(int)
|
345 |
*/
|
346 |
public void assign(int value)throws GridException { |
347 |
try {
|
348 |
writer.assign(value); |
349 |
} catch (RasterBufferInvalidAccessException e) {
|
350 |
throw new GridException("Error wrinting buffer"); |
351 |
} |
352 |
} |
353 |
|
354 |
/*
|
355 |
* (non-Javadoc)
|
356 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(float)
|
357 |
*/
|
358 |
public void assign(float value)throws GridException { |
359 |
try {
|
360 |
writer.assign(value); |
361 |
} catch (RasterBufferInvalidAccessException e) {
|
362 |
throw new GridException("Error wrinting buffer"); |
363 |
} |
364 |
} |
365 |
|
366 |
/*
|
367 |
* (non-Javadoc)
|
368 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(double)
|
369 |
*/
|
370 |
public void assign(double value)throws GridException { |
371 |
try {
|
372 |
writer.assign(value); |
373 |
} catch (RasterBufferInvalidAccessException e) {
|
374 |
throw new GridException("Error wrinting buffer"); |
375 |
} |
376 |
} |
377 |
|
378 |
/*
|
379 |
* (non-Javadoc)
|
380 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.dataaccess.BufferFactory)
|
381 |
*/
|
382 |
public void assign(BufferFactory bufferFactory) throws GridException { |
383 |
Grid window; |
384 |
try {
|
385 |
window = new Grid(bufferFactory.getDataSource(), bands, windowExtent);
|
386 |
write(window); |
387 |
writer.setNoDataValue(window.getNoDataValue()); |
388 |
} catch (RasterBufferInvalidException e) {
|
389 |
throw new GridException("Error writing buffer"); |
390 |
} |
391 |
} |
392 |
|
393 |
/*
|
394 |
* (non-Javadoc)
|
395 |
* @see org.gvsig.fmap.grid.IWritableGrid#assign(org.gvsig.fmap.grid.Grid)
|
396 |
*/
|
397 |
public void assign(Grid driver) throws GridException { |
398 |
if (driver.getGridExtent().equals(layerExtent)){
|
399 |
write(driver); |
400 |
writer.setNoDataValue(driver.getNoDataValue()); |
401 |
} |
402 |
} |
403 |
|
404 |
/**
|
405 |
* Sobreescribe los datos del grid actual con los datos del grid pasado por par?metro
|
406 |
* @param g Grid desde donde se obtienen los datos
|
407 |
*/
|
408 |
private void write(Grid g) throws GridException { |
409 |
try{
|
410 |
switch(rasterBuf.getDataType()){
|
411 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) { |
412 |
for (int y = 0; y < g.getNY(); y++) { |
413 |
writer.setCellValue(x, y, g.getCellValueAsByte(x, y)); |
414 |
} |
415 |
} |
416 |
break;
|
417 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) { |
418 |
for (int y = 0; y < g.getNY(); y++) { |
419 |
writer.setCellValue(x, y, g.getCellValueAsShort(x, y)); |
420 |
} |
421 |
} |
422 |
break;
|
423 |
case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) { |
424 |
for (int y = 0; y < g.getNY(); y++) { |
425 |
writer.setCellValue(x, y, g.getCellValueAsInt(x, y)); |
426 |
} |
427 |
} |
428 |
break;
|
429 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) { |
430 |
for (int y = 0; y < g.getNY(); y++) { |
431 |
writer.setCellValue(x, y, g.getCellValueAsFloat(x, y)); |
432 |
} |
433 |
} |
434 |
break;
|
435 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) { |
436 |
for (int y = 0; y < g.getNY(); y++) { |
437 |
writer.setCellValue(x, y, g.getCellValueAsDouble(x, y)); |
438 |
} |
439 |
} |
440 |
break;
|
441 |
} |
442 |
} catch (OutOfGridException e) {
|
443 |
throw new GridException(""); |
444 |
} |
445 |
} |
446 |
|
447 |
/*
|
448 |
* (non-Javadoc)
|
449 |
* @see org.gvsig.fmap.grid.IWritableGrid#assignNoData()
|
450 |
*/
|
451 |
public void assignNoData(){ |
452 |
try {
|
453 |
switch(rasterBuf.getDataType()){
|
454 |
case IBuffer.TYPE_BYTE: writer.assign((byte)rasterBuf.getNoDataValue());break; |
455 |
case IBuffer.TYPE_SHORT: writer.assign((short)rasterBuf.getNoDataValue());break; |
456 |
case IBuffer.TYPE_INT: writer.assign((int)rasterBuf.getNoDataValue());break; |
457 |
case IBuffer.TYPE_FLOAT: writer.assign((float)rasterBuf.getNoDataValue());break; |
458 |
case IBuffer.TYPE_DOUBLE: writer.assign((double)rasterBuf.getNoDataValue());break; |
459 |
} |
460 |
} catch (RasterBufferInvalidAccessException e) {
|
461 |
//No hacemos nada. El tipo de dato al que se accede no es controlado por el usuario por lo
|
462 |
//que no le mandamos la excepci?n hacia arriba.
|
463 |
e.printStackTrace(); |
464 |
} |
465 |
} |
466 |
|
467 |
/*
|
468 |
* (non-Javadoc)
|
469 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, byte)
|
470 |
*/
|
471 |
public void setCellValue(int x, int y, byte value)throws OutOfGridException{ |
472 |
writer.setCellValue(x, y, value); |
473 |
} |
474 |
|
475 |
/*
|
476 |
* (non-Javadoc)
|
477 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, short)
|
478 |
*/
|
479 |
public void setCellValue(int x, int y, short value)throws OutOfGridException{ |
480 |
writer.setCellValue(x, y, value); |
481 |
} |
482 |
|
483 |
/*
|
484 |
* (non-Javadoc)
|
485 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, int)
|
486 |
*/
|
487 |
public void setCellValue(int x, int y, int value)throws OutOfGridException{ |
488 |
writer.setCellValue(x, y, value); |
489 |
} |
490 |
|
491 |
/*
|
492 |
* (non-Javadoc)
|
493 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, float)
|
494 |
*/
|
495 |
public void setCellValue(int x, int y, float value)throws OutOfGridException{ |
496 |
writer.setCellValue(x, y, value); |
497 |
} |
498 |
|
499 |
/*
|
500 |
* (non-Javadoc)
|
501 |
* @see org.gvsig.fmap.grid.IWritableGrid#setCellValue(int, int, double)
|
502 |
*/
|
503 |
public void setCellValue(int x, int y, double value)throws OutOfGridException{ |
504 |
writer.setCellValue(x, y, value); |
505 |
} |
506 |
|
507 |
/*
|
508 |
* (non-Javadoc)
|
509 |
* @see org.gvsig.fmap.grid.IWritableGrid#add(org.gvsig.fmap.grid.Grid)
|
510 |
*/
|
511 |
public void add(Grid g) throws GridException { |
512 |
if (g.getGridExtent().equals(getGridExtent())) {
|
513 |
boolean interp = (reader instanceof GridInterpolated); |
514 |
switchToInterpolationMethod(false);
|
515 |
try{
|
516 |
switch(rasterBuf.getDataType()){
|
517 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < g.getNX(); x++) { |
518 |
for (int y = 0; y < g.getNY(); y++) { |
519 |
writer.setCellValue(x, y, reader.getCellValueAsByte(x, y) + g.getCellValueAsByte(x,y)); |
520 |
} |
521 |
} |
522 |
break;
|
523 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < g.getNX(); x++) { |
524 |
for (int y = 0; y < g.getNY(); y++) { |
525 |
writer.setCellValue(x, y, reader.getCellValueAsShort(x, y) + g.getCellValueAsShort(x,y)); |
526 |
} |
527 |
} |
528 |
break;
|
529 |
case IBuffer.TYPE_INT: for (int x = 0; x < g.getNX(); x++) { |
530 |
for (int y = 0; y < g.getNY(); y++) { |
531 |
writer.setCellValue(x, y, reader.getCellValueAsInt(x, y) + g.getCellValueAsInt(x,y)); |
532 |
} |
533 |
} |
534 |
break;
|
535 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < g.getNX(); x++) { |
536 |
for (int y = 0; y < g.getNY(); y++) { |
537 |
writer.setCellValue(x, y, reader.getCellValueAsFloat(x, y) + g.getCellValueAsFloat(x,y)); |
538 |
} |
539 |
} |
540 |
break;
|
541 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < g.getNX(); x++) { |
542 |
for (int y = 0; y < g.getNY(); y++) { |
543 |
writer.setCellValue(x, y, reader.getCellValueAsDouble(x, y) + g.getCellValueAsDouble(x,y)); |
544 |
} |
545 |
} |
546 |
break;
|
547 |
} |
548 |
} catch (OutOfGridException e) {
|
549 |
throw new GridException(""); |
550 |
} catch (RasterBufferInvalidAccessException e1) {
|
551 |
throw new GridException(""); |
552 |
} catch (RasterBufferInvalidException e) {
|
553 |
throw new GridException(""); |
554 |
} |
555 |
switchToInterpolationMethod(interp); |
556 |
} |
557 |
} |
558 |
|
559 |
/*
|
560 |
* (non-Javadoc)
|
561 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, byte)
|
562 |
*/
|
563 |
public void addToCellValue(int x, int y, byte value) |
564 |
throws GridException {
|
565 |
try {
|
566 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) + value));
|
567 |
} catch (OutOfGridException e) {
|
568 |
throw new GridException(""); |
569 |
} catch (RasterBufferInvalidAccessException e) {
|
570 |
throw new GridException(""); |
571 |
} catch (RasterBufferInvalidException e) {
|
572 |
throw new GridException(""); |
573 |
} |
574 |
} |
575 |
|
576 |
/*
|
577 |
* (non-Javadoc)
|
578 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, short)
|
579 |
*/
|
580 |
public void addToCellValue(int x, int y, short value) |
581 |
throws GridException {
|
582 |
try {
|
583 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) + value));
|
584 |
} catch (OutOfGridException e) {
|
585 |
throw new GridException(""); |
586 |
} catch (RasterBufferInvalidAccessException e) {
|
587 |
throw new GridException(""); |
588 |
} catch (RasterBufferInvalidException e) {
|
589 |
throw new GridException(""); |
590 |
} |
591 |
} |
592 |
|
593 |
/*
|
594 |
* (non-Javadoc)
|
595 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, int)
|
596 |
*/
|
597 |
public void addToCellValue(int x, int y, int value) |
598 |
throws GridException {
|
599 |
try {
|
600 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) + value));
|
601 |
} catch (OutOfGridException e) {
|
602 |
throw new GridException(""); |
603 |
} catch (RasterBufferInvalidAccessException e) {
|
604 |
throw new GridException(""); |
605 |
} catch (RasterBufferInvalidException e) {
|
606 |
throw new GridException(""); |
607 |
} |
608 |
} |
609 |
|
610 |
/*
|
611 |
* (non-Javadoc)
|
612 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, float)
|
613 |
*/
|
614 |
public void addToCellValue(int x, int y, float value) |
615 |
throws GridException {
|
616 |
try {
|
617 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) + value));
|
618 |
} catch (OutOfGridException e) {
|
619 |
throw new GridException(""); |
620 |
} catch (RasterBufferInvalidAccessException e) {
|
621 |
throw new GridException(""); |
622 |
} catch (RasterBufferInvalidException e) {
|
623 |
throw new GridException(""); |
624 |
} |
625 |
} |
626 |
|
627 |
/*
|
628 |
* (non-Javadoc)
|
629 |
* @see org.gvsig.fmap.grid.IWritableGrid#addToCellValue(int, int, double)
|
630 |
*/
|
631 |
public void addToCellValue(int x, int y, double value) |
632 |
throws GridException {
|
633 |
try {
|
634 |
writer.setCellValue(x, y, (double)(reader.getCellValueAsDouble(x, y) + value));
|
635 |
} catch (OutOfGridException e) {
|
636 |
throw new GridException(""); |
637 |
} catch (RasterBufferInvalidAccessException e) {
|
638 |
throw new GridException(""); |
639 |
} catch (RasterBufferInvalidException e) {
|
640 |
throw new GridException(""); |
641 |
} |
642 |
} |
643 |
|
644 |
/*
|
645 |
* (non-Javadoc)
|
646 |
* @see org.gvsig.fmap.grid.IWritableGrid#multiply(double)
|
647 |
*/
|
648 |
public void multiply(double value) throws GridException { |
649 |
boolean interp = (reader instanceof GridInterpolated); |
650 |
switchToInterpolationMethod(false);
|
651 |
try{
|
652 |
switch(rasterBuf.getDataType()){
|
653 |
case IBuffer.TYPE_BYTE: for (int x = 0; x < getNX(); x++){ |
654 |
for (int y = 0; y < getNY(); y++) |
655 |
writer.setCellValue(x, y, (byte)(reader.getCellValueAsByte(x, y) * value));
|
656 |
} |
657 |
break;
|
658 |
case IBuffer.TYPE_SHORT:for (int x = 0; x < getNX(); x++){ |
659 |
for (int y = 0; y < getNY(); y++) |
660 |
writer.setCellValue(x, y, (short)(reader.getCellValueAsShort(x, y) * value));
|
661 |
} |
662 |
break;
|
663 |
case IBuffer.TYPE_INT: for (int x = 0; x < getNX(); x++){ |
664 |
for (int y = 0; y < getNY(); y++) |
665 |
writer.setCellValue(x, y, (int)(reader.getCellValueAsInt(x, y) * value));
|
666 |
} |
667 |
break;
|
668 |
case IBuffer.TYPE_FLOAT:for (int x = 0; x < getNX(); x++){ |
669 |
for (int y = 0; y < getNY(); y++) |
670 |
writer.setCellValue(x, y, (float)(reader.getCellValueAsFloat(x, y) * value));
|
671 |
} |
672 |
break;
|
673 |
case IBuffer.TYPE_DOUBLE:for (int x = 0; x < getNX(); x++){ |
674 |
for (int y = 0; y < getNY(); y++) |
675 |
writer.setCellValue(x, y, (double)(reader.getCellValueAsDouble(x, y) * value));
|
676 |
} |
677 |
break;
|
678 |
} |
679 |
} catch (RasterBufferInvalidException e) {
|
680 |
throw new GridException(""); |
681 |
} catch (OutOfGridException e1) {
|
682 |
throw new GridException(""); |
683 |
} catch (RasterBufferInvalidAccessException e) {
|
684 |
throw new GridException(""); |
685 |
} |
686 |
//Restauramos el reader que hab?a
|
687 |
switchToInterpolationMethod(interp); |
688 |
} |
689 |
|
690 |
/*
|
691 |
* (non-Javadoc)
|
692 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoDataValue(double)
|
693 |
*/
|
694 |
public void setNoDataValue(double dNoDataValue){ |
695 |
writer.setNoDataValue((float) dNoDataValue);
|
696 |
} |
697 |
|
698 |
/*
|
699 |
* (non-Javadoc)
|
700 |
* @see org.gvsig.fmap.grid.IWritableGrid#setNoData(int, int)
|
701 |
*/
|
702 |
public void setNoData(int x, int y){ |
703 |
writer.setNoData(x,y); |
704 |
} |
705 |
|
706 |
public void ExportToArcViewASCIIFile(String sFilename){ |
707 |
try {
|
708 |
writer.ExportToArcViewASCIIFile(sFilename); |
709 |
} catch (NumberFormatException e) { |
710 |
e.printStackTrace(); |
711 |
} catch (IOException e) { |
712 |
e.printStackTrace(); |
713 |
} |
714 |
} |
715 |
|
716 |
//************* Query Services *********************
|
717 |
|
718 |
/*
|
719 |
* (non-Javadoc)
|
720 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isNoDataValue(double)
|
721 |
*/
|
722 |
public boolean isNoDataValue(double noDataValue){ |
723 |
return (reader.getNoDataValue() == noDataValue);
|
724 |
} |
725 |
|
726 |
/*
|
727 |
* (non-Javadoc)
|
728 |
* @see org.gvsig.fmap.grid.IQueryableGrid#isInGrid(int, int)
|
729 |
*/
|
730 |
public boolean isInGrid(int x, int y){ |
731 |
return reader.isCellInGrid(x, y);
|
732 |
} |
733 |
|
734 |
/*
|
735 |
* (non-Javadoc)
|
736 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellSize()
|
737 |
*/
|
738 |
public double getCellSize() { |
739 |
return reader.getCellSize();
|
740 |
} |
741 |
|
742 |
/*
|
743 |
* (non-Javadoc)
|
744 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsByte(int, int)
|
745 |
*/
|
746 |
public byte getCellValueAsByte(int x, int y)throws GridException { |
747 |
try {
|
748 |
return reader.getCellValueAsByte(x, y);
|
749 |
} catch (RasterBufferInvalidAccessException e) {
|
750 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
751 |
} catch (RasterBufferInvalidException e) {
|
752 |
throw new GridException("Buffer not valid"); |
753 |
} |
754 |
} |
755 |
|
756 |
/*
|
757 |
* (non-Javadoc)
|
758 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsShort(int, int)
|
759 |
*/
|
760 |
public short getCellValueAsShort(int x, int y)throws GridException { |
761 |
try {
|
762 |
return (short) reader.getCellValueAsShort(x, y); |
763 |
} catch (RasterBufferInvalidAccessException e) {
|
764 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
765 |
} catch (RasterBufferInvalidException e) {
|
766 |
throw new GridException("Buffer not valid"); |
767 |
} |
768 |
} |
769 |
|
770 |
/*
|
771 |
* (non-Javadoc)
|
772 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsInt(int, int)
|
773 |
*/
|
774 |
public int getCellValueAsInt(int x, int y)throws GridException { |
775 |
try {
|
776 |
return (int) reader.getCellValueAsInt(x, y); |
777 |
} catch (RasterBufferInvalidAccessException e) {
|
778 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
779 |
} catch (RasterBufferInvalidException e) {
|
780 |
throw new GridException("Buffer not valid"); |
781 |
} |
782 |
} |
783 |
|
784 |
/*
|
785 |
* (non-Javadoc)
|
786 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsFloat(int, int)
|
787 |
*/
|
788 |
public float getCellValueAsFloat(int x, int y)throws GridException { |
789 |
try {
|
790 |
return reader.getCellValueAsFloat(x, y);
|
791 |
} catch (RasterBufferInvalidAccessException e) {
|
792 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
793 |
} catch (RasterBufferInvalidException e) {
|
794 |
throw new GridException("Buffer not valid"); |
795 |
} |
796 |
} |
797 |
|
798 |
/*
|
799 |
* (non-Javadoc)
|
800 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getCellValueAsDouble(int, int)
|
801 |
*/
|
802 |
public double getCellValueAsDouble(int x, int y)throws GridException { |
803 |
try {
|
804 |
return (double) reader.getCellValueAsDouble(x, y); |
805 |
} catch (RasterBufferInvalidAccessException e) {
|
806 |
throw new GridException("Position: (" + x + "," + y + ") not valid"); |
807 |
} catch (RasterBufferInvalidException e) {
|
808 |
throw new GridException("Buffer not valid"); |
809 |
} |
810 |
} |
811 |
|
812 |
/*
|
813 |
* (non-Javadoc)
|
814 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNoDataValue()
|
815 |
*/
|
816 |
public double getNoDataValue() { |
817 |
return (double) rasterBuf.getNoDataValue(); |
818 |
} |
819 |
|
820 |
/*
|
821 |
* (non-Javadoc)
|
822 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMinValue()
|
823 |
*/
|
824 |
public double getMinValue() throws GridException { |
825 |
if (!statistic.isStatisticsCalculated())
|
826 |
statistic.calculateStatistics(); |
827 |
return statistic.getMin();
|
828 |
} |
829 |
|
830 |
/*
|
831 |
* (non-Javadoc)
|
832 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMaxValue()
|
833 |
*/
|
834 |
public double getMaxValue() throws GridException { |
835 |
if (!statistic.isStatisticsCalculated())
|
836 |
statistic.calculateStatistics(); |
837 |
return statistic.getMax();
|
838 |
} |
839 |
|
840 |
/*
|
841 |
* (non-Javadoc)
|
842 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getMeanValue()
|
843 |
*/
|
844 |
public double getMeanValue() throws GridException { |
845 |
if (!statistic.isStatisticsCalculated())
|
846 |
statistic.calculateStatistics(); |
847 |
return statistic.getMean();
|
848 |
} |
849 |
|
850 |
/*
|
851 |
* (non-Javadoc)
|
852 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getVariance()
|
853 |
*/
|
854 |
public double getVariance() throws GridException { |
855 |
if (!statistic.isStatisticsCalculated())
|
856 |
statistic.calculateStatistics(); |
857 |
return statistic.getVariance();
|
858 |
} |
859 |
|
860 |
/*
|
861 |
* (non-Javadoc)
|
862 |
* @see org.gvsig.fmap.grid.IQueryableGrid#setInterpolationMethod(int)
|
863 |
*/
|
864 |
public void setInterpolationMethod(int iMethod){ |
865 |
if (reader instanceof GridInterpolated) |
866 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
867 |
else{
|
868 |
this.switchToInterpolationMethod(true); |
869 |
((GridInterpolated) reader).setInterpolationMethod(iMethod); |
870 |
} |
871 |
} |
872 |
|
873 |
/*
|
874 |
* (non-Javadoc)
|
875 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNX()
|
876 |
*/
|
877 |
public int getNX(){ |
878 |
return reader.getNX();
|
879 |
} |
880 |
|
881 |
/*
|
882 |
* (non-Javadoc)
|
883 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getNY()
|
884 |
*/
|
885 |
public int getNY(){ |
886 |
return reader.getNY();
|
887 |
} |
888 |
|
889 |
/*
|
890 |
* (non-Javadoc)
|
891 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNX()
|
892 |
*/
|
893 |
public int getLayerNX(){ |
894 |
return layerExtent.getNX();
|
895 |
} |
896 |
|
897 |
/*
|
898 |
* (non-Javadoc)
|
899 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getLayerNY()
|
900 |
*/
|
901 |
public int getLayerNY(){ |
902 |
return layerExtent.getNY();
|
903 |
} |
904 |
|
905 |
public int getDataType(){ |
906 |
return dataType;
|
907 |
} |
908 |
|
909 |
private boolean getSubMatrix3x3(int x, int y, double subMatrix[]) |
910 |
throws GridException {
|
911 |
int i;
|
912 |
int iDir;
|
913 |
double z, z2;
|
914 |
|
915 |
z = getCellValueAsDouble(x, y); |
916 |
|
917 |
if(isNoDataValue(z)) {
|
918 |
return false; |
919 |
} else {
|
920 |
//SubMatrix[4] = 0.0;
|
921 |
for(i = 0; i < 4; i++) { |
922 |
iDir = 2 * i;
|
923 |
z2 = getCellValueAsDouble(x + m_iOffsetX[iDir], y + m_iOffsetY[iDir]); |
924 |
if( !isNoDataValue(z2)){
|
925 |
subMatrix[i] = z2 - z; |
926 |
} else {
|
927 |
z2 = getCellValueAsDouble(x + m_iOffsetX[(iDir + 4) % 8], y + m_iOffsetY[(iDir + 4) % 8]); |
928 |
if( !isNoDataValue(z2)) {
|
929 |
subMatrix[i] = z - z2; |
930 |
} else {
|
931 |
subMatrix[i] = 0.0;
|
932 |
} |
933 |
} |
934 |
} |
935 |
|
936 |
return true; |
937 |
} |
938 |
} |
939 |
|
940 |
/*
|
941 |
* (non-Javadoc)
|
942 |
* @see org.gvsig.raster.grid.IQueryableGrid#getSlope(int, int)
|
943 |
*/
|
944 |
public double getSlope(int x, int y)throws GridException { |
945 |
double zm[], G, H; |
946 |
|
947 |
zm = new double[4]; |
948 |
|
949 |
try {
|
950 |
if( getSubMatrix3x3(x, y, zm) ) {
|
951 |
G = (zm[0] - zm[2]) / _2DX; |
952 |
H = (zm[1] - zm[3]) / _2DX; |
953 |
return Math.atan(Math.sqrt(G * G + H * H)); |
954 |
} |
955 |
else {
|
956 |
return rasterBuf.getNoDataValue();
|
957 |
} |
958 |
} catch (GridException e) {
|
959 |
throw new GridException("Problems accesing 3x3 submatrix"); |
960 |
} |
961 |
} |
962 |
|
963 |
/*
|
964 |
* (non-Javadoc)
|
965 |
* @see org.gvsig.raster.grid.IQueryableGrid#getAspect(int, int)
|
966 |
*/
|
967 |
public double getAspect(int x, int y)throws GridException { |
968 |
double zm[], G, H, dAspect; |
969 |
zm = new double[4]; |
970 |
|
971 |
try {
|
972 |
if( getSubMatrix3x3(x, y, zm) ) {
|
973 |
G = (zm[0] - zm[2]) / _2DX; |
974 |
H = (zm[1] - zm[3]) / _2DX; |
975 |
if(G != 0.0) |
976 |
dAspect = DEG_180_IN_RAD + Math.atan2(H, G);
|
977 |
else
|
978 |
dAspect = H > 0.0 ? DEG_270_IN_RAD : (H < 0.0 ? DEG_90_IN_RAD : -1.0); |
979 |
return dAspect;
|
980 |
} |
981 |
else
|
982 |
return rasterBuf.getNoDataValue();
|
983 |
} catch (GridException e) {
|
984 |
throw new GridException("Problems accesing 3x3 submatrix"); |
985 |
} |
986 |
} |
987 |
|
988 |
public static int getXOffsetInDir(int iDir){ |
989 |
return m_iOffsetX[iDir];
|
990 |
} |
991 |
|
992 |
public static int getYOffsetInDir(int iDir){ |
993 |
return m_iOffsetY[iDir];
|
994 |
} |
995 |
|
996 |
public double getDistToNeighborInDir(int iDir){ |
997 |
return m_dDist[iDir];
|
998 |
} |
999 |
|
1000 |
public static double getUnitDistToNeighborInDir(int iDir){ |
1001 |
return( (iDir % 2 != 0) ? Math.sqrt(2.0) : 1.0 ); |
1002 |
} |
1003 |
|
1004 |
/*
|
1005 |
* (non-Javadoc)
|
1006 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int)
|
1007 |
*/
|
1008 |
public int getDirToNextDownslopeCell(int x, int y)throws GridException{ |
1009 |
return getDirToNextDownslopeCell(x, y, true); |
1010 |
} |
1011 |
|
1012 |
/*
|
1013 |
* (non-Javadoc)
|
1014 |
* @see org.gvsig.fmap.grid.IQueryableGrid#getDirToNextDownslopeCell(int, int, boolean)
|
1015 |
*/
|
1016 |
public int getDirToNextDownslopeCell(int x, int y, boolean bForceDirToNoDataCell) |
1017 |
throws GridException{
|
1018 |
|
1019 |
int i, iDir;
|
1020 |
double z, z2, dSlope, dMaxSlope;
|
1021 |
|
1022 |
z = getCellValueAsDouble(x, y); |
1023 |
|
1024 |
if(isNoDataValue(z)){
|
1025 |
return -1; |
1026 |
} |
1027 |
|
1028 |
dMaxSlope = 0.0;
|
1029 |
for(iDir=-1, i=0; i<8; i++) { |
1030 |
z2 = getCellValueAsDouble(x + m_iOffsetX[i], y + m_iOffsetY[i]); |
1031 |
if(isNoDataValue(z2)) {
|
1032 |
if (bForceDirToNoDataCell) {
|
1033 |
return i;
|
1034 |
} |
1035 |
else {
|
1036 |
return -1; |
1037 |
} |
1038 |
} |
1039 |
else {
|
1040 |
dSlope = (z - z2) / getDistToNeighborInDir(i); |
1041 |
if( dSlope > dMaxSlope ) {
|
1042 |
iDir = i; |
1043 |
dMaxSlope = dSlope; |
1044 |
} |
1045 |
} |
1046 |
} |
1047 |
return iDir;
|
1048 |
} |
1049 |
|
1050 |
public GridCell[] getSortedArrayOfCells()throws GridException{ |
1051 |
int i;
|
1052 |
int iX,iY;
|
1053 |
int iNX = getNX();
|
1054 |
int iCells = getNX() * getNY();
|
1055 |
GridCell [] cells = null; |
1056 |
GridCell cell = null;
|
1057 |
|
1058 |
cells = new GridCell[iCells];
|
1059 |
|
1060 |
for (i = 0; i < iCells; i++) { |
1061 |
iX = i % iNX; |
1062 |
iY = i / iNX; |
1063 |
switch(getDataType()){
|
1064 |
case IBuffer.TYPE_BYTE: cell = new GridCell(iX, iY, getCellValueAsByte(iX, iY)); break; |
1065 |
case IBuffer.TYPE_SHORT: cell = new GridCell(iX, iY, getCellValueAsShort(iX, iY)); break; |
1066 |
case IBuffer.TYPE_INT: cell = new GridCell(iX, iY, getCellValueAsInt(iX, iY)); break; |
1067 |
case IBuffer.TYPE_FLOAT: cell = new GridCell(iX, iY, getCellValueAsFloat(iX, iY)); break; |
1068 |
case IBuffer.TYPE_DOUBLE: cell = new GridCell(iX, iY, getCellValueAsDouble(iX, iY)); break; |
1069 |
} |
1070 |
|
1071 |
cells[i] = cell; |
1072 |
} |
1073 |
|
1074 |
Arrays.sort(cells);
|
1075 |
|
1076 |
return cells;
|
1077 |
} |
1078 |
|
1079 |
/**
|
1080 |
* Obtiene la paleta para el caso de un MDT. Esta funci?n evita el tener que obtener
|
1081 |
* un array de paletas y buscar en el cuando se trata de un caso simple de MDT de una
|
1082 |
* sola banda. Comprueba que se trata de un raster monobanda con paleta asociada antes
|
1083 |
* de devolverla.
|
1084 |
* @return GridPalette asociada al Grid
|
1085 |
*/
|
1086 |
public GridPalette getMDTPalette() {
|
1087 |
if( rasterBuf != null && |
1088 |
rasterBuf.getBandCount() == 1 &&
|
1089 |
palette != null)
|
1090 |
return palette[0]; |
1091 |
return null; |
1092 |
} |
1093 |
|
1094 |
/**
|
1095 |
* Obtiene la lista de paletas asociadas al grid
|
1096 |
* @return Lista de objetos GridPalette
|
1097 |
*/
|
1098 |
public GridPalette[] getPalettes() { |
1099 |
return palette;
|
1100 |
} |
1101 |
|
1102 |
/**
|
1103 |
* Obtiene el n?mero de bandas del grid o 0 si no tiene buffer de
|
1104 |
* datos asociado.
|
1105 |
* @return N?mero de bandas
|
1106 |
*/
|
1107 |
public int getBandCount() { |
1108 |
if(rasterBuf != null) |
1109 |
return rasterBuf.getBandCount();
|
1110 |
return 0; |
1111 |
} |
1112 |
|
1113 |
/**
|
1114 |
* Asigna la lista de paletas asociadas al grid
|
1115 |
* @param palette Lista de objetos GridPalette
|
1116 |
*/
|
1117 |
public void setPalettes(GridPalette[] palette) { |
1118 |
this.palette = palette;
|
1119 |
} |
1120 |
|
1121 |
/**
|
1122 |
* Obtiene la lista de filtros.
|
1123 |
* @return Lista de filtros.
|
1124 |
*/
|
1125 |
public RasterFilterList getFilterList(){
|
1126 |
return filterList;
|
1127 |
} |
1128 |
|
1129 |
/**
|
1130 |
* Asigna la lista de filtros
|
1131 |
* @param filterList
|
1132 |
*/
|
1133 |
public void setFilterList(RasterFilterList filterList) { |
1134 |
this.filterList = filterList;
|
1135 |
} |
1136 |
|
1137 |
/**
|
1138 |
*Aplica la lista de filtros sobre el buffer
|
1139 |
* @throws InterruptedException
|
1140 |
*/
|
1141 |
public void applyFilters() throws InterruptedException { |
1142 |
if (filterList == null) |
1143 |
return;
|
1144 |
|
1145 |
filterList.setInitRasterBuf(rasterBuf); |
1146 |
|
1147 |
filterList.getEnv().put("GridExtent", getGridExtent());
|
1148 |
filterList.getEnv().put("WindowExtent", getWindowExtent());
|
1149 |
|
1150 |
filterList.execute(); |
1151 |
rasterBuf = (RasterBuffer) filterList.getResult(); |
1152 |
dataType = rasterBuf.getDataType(); |
1153 |
} |
1154 |
|
1155 |
/**
|
1156 |
* Obtiene el buffer de datos del grid
|
1157 |
* @return RasterBuf
|
1158 |
*/
|
1159 |
public IBuffer getRasterBuf() {
|
1160 |
return rasterBuf;
|
1161 |
} |
1162 |
|
1163 |
/**
|
1164 |
* Asigna la banda sobre la que se realizan las operaciones. Por defecto es la banda 0
|
1165 |
* con lo que para el uso de MDTs no habr? que modificar este valor.
|
1166 |
* @param band Banda sobre la que se realizan las operaciones.
|
1167 |
*/
|
1168 |
public void setBandToOperate(int band) { |
1169 |
if(writer != null) |
1170 |
writer.setBandToOperate(band); |
1171 |
if(reader != null) |
1172 |
reader.setBandToOperate(band); |
1173 |
if(statistic != null) |
1174 |
statistic.setBandToOperate(band); |
1175 |
} |
1176 |
|
1177 |
/**
|
1178 |
* Obtiene el extent de la ventana seleccionada para petici?n de datos
|
1179 |
* @return GridExtent
|
1180 |
*/
|
1181 |
public GridExtent getWindowExtent() {
|
1182 |
return windowExtent;
|
1183 |
} |
1184 |
|
1185 |
/**
|
1186 |
* Obtiene el extent del grid para petici?n de datos
|
1187 |
* @return GridExtent
|
1188 |
*/
|
1189 |
public GridExtent getGridExtent() {
|
1190 |
return layerExtent;
|
1191 |
} |
1192 |
} |