svn-gvsig-desktop / trunk / extensions / extRemoteSensing / src / org / gvsig / remotesensing / gridmath / GridMathProcess.java @ 20826
History | View | Annotate | Download (10.4 KB)
| 1 |
/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
|
|---|---|
| 2 |
*
|
| 3 |
* Copyright (C) 2006 Instituto de Desarrollo Regional 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 |
* For more information, contact:
|
| 20 |
*
|
| 21 |
* Generalitat Valenciana
|
| 22 |
* Conselleria d'Infraestructures i Transport
|
| 23 |
* Av. Blasco Iba?ez, 50
|
| 24 |
* 46010 VALENCIA
|
| 25 |
* SPAIN
|
| 26 |
*
|
| 27 |
* +34 963862235
|
| 28 |
* gvsig@gva.es
|
| 29 |
* www.gvsig.gva.es
|
| 30 |
*
|
| 31 |
* or
|
| 32 |
*
|
| 33 |
* Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)
|
| 34 |
* Campus Universitario s/n
|
| 35 |
* 02071 Alabacete
|
| 36 |
* Spain
|
| 37 |
*
|
| 38 |
* +34 967 599 200
|
| 39 |
*/
|
| 40 |
|
| 41 |
package org.gvsig.remotesensing.gridmath; |
| 42 |
|
| 43 |
import java.awt.geom.AffineTransform; |
| 44 |
import java.io.File; |
| 45 |
import java.io.IOException; |
| 46 |
import java.util.HashMap; |
| 47 |
import java.util.Iterator; |
| 48 |
|
| 49 |
import org.gvsig.fmap.raster.layers.FLyrRasterSE; |
| 50 |
import org.gvsig.gui.beans.incrementabletask.IncrementableEvent; |
| 51 |
import org.gvsig.raster.RasterProcess; |
| 52 |
import org.gvsig.raster.buffer.RasterBuffer; |
| 53 |
import org.gvsig.raster.buffer.WriterBufferServer; |
| 54 |
import org.gvsig.raster.dataset.GeoRasterWriter; |
| 55 |
import org.gvsig.raster.dataset.NotSupportedExtensionException; |
| 56 |
import org.gvsig.raster.dataset.io.RasterDriverException; |
| 57 |
import org.gvsig.raster.grid.GridExtent; |
| 58 |
import org.gvsig.raster.process.CancelEvent; |
| 59 |
import org.gvsig.raster.util.RasterToolsUtil; |
| 60 |
import org.nfunk.jep.JEP; |
| 61 |
import org.nfunk.jep.Variable; |
| 62 |
|
| 63 |
import com.iver.andami.PluginServices; |
| 64 |
import com.iver.cit.gvsig.exceptions.layers.LoadLayerException; |
| 65 |
import com.iver.cit.gvsig.fmap.MapContext; |
| 66 |
import com.iver.cit.gvsig.fmap.layers.FLayer; |
| 67 |
|
| 68 |
/**
|
| 69 |
* GridMathProcess implenta la funcionalidad para el c?lculo de operaciones entre grids.
|
| 70 |
* El proceso permite hacer operaciones matem?ticas entre los valores de las bandas de la misma imagen o entre
|
| 71 |
* diferentes im?genes bajo ciertas restricciones espaciales (siempre sobre los datos originales).
|
| 72 |
*
|
| 73 |
* @author Alejandro Mu?oz Sanchez (alejandro.munoz@uclm.es)
|
| 74 |
* @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)
|
| 75 |
* @version 19/10/2007
|
| 76 |
*
|
| 77 |
*/
|
| 78 |
|
| 79 |
public class GridMathProcess extends RasterProcess{ |
| 80 |
|
| 81 |
HashMap params = null; // Asignacion de variables a grids. |
| 82 |
JEP parser = null;
|
| 83 |
String expression = null; |
| 84 |
GridExtent resultExtent = null;
|
| 85 |
private WriterBufferServer writerBufferServer = null; |
| 86 |
private int percent = 0; |
| 87 |
private boolean cancel = false; |
| 88 |
private MapContext mapContext = null; |
| 89 |
private String filePath = null; |
| 90 |
private AffineTransform aTransform = null; |
| 91 |
private RasterBuffer rasterResult = null; |
| 92 |
|
| 93 |
/**
|
| 94 |
* Constructor
|
| 95 |
*/
|
| 96 |
public GridMathProcess(){
|
| 97 |
parser = new JEP();
|
| 98 |
parser.setAllowUndeclared(true);
|
| 99 |
parser.addStandardFunctions(); |
| 100 |
} |
| 101 |
|
| 102 |
|
| 103 |
/**
|
| 104 |
* @return HashMap con las variables asociadas a sus grid correspondientes
|
| 105 |
* */
|
| 106 |
public HashMap getParams() { |
| 107 |
return params;
|
| 108 |
} |
| 109 |
|
| 110 |
|
| 111 |
/**
|
| 112 |
* Asigna el params con las variables
|
| 113 |
* @param params
|
| 114 |
*/
|
| 115 |
public void setParams(HashMap params) { |
| 116 |
this.params = params;
|
| 117 |
} |
| 118 |
|
| 119 |
|
| 120 |
/**
|
| 121 |
* Establece la expresi?n en el parser
|
| 122 |
* @param expression expresion
|
| 123 |
*/
|
| 124 |
public void setExpression(String expression){ |
| 125 |
this.expression = expression;
|
| 126 |
parser.getSymbolTable().clear(); |
| 127 |
parser.parseExpression(expression); |
| 128 |
} |
| 129 |
|
| 130 |
/**
|
| 131 |
* @return expresi?n a evaluar
|
| 132 |
*/
|
| 133 |
public String getExpression() { |
| 134 |
return expression;
|
| 135 |
} |
| 136 |
|
| 137 |
|
| 138 |
/**
|
| 139 |
* @return true si en el parseo de la expresion hay error
|
| 140 |
*/
|
| 141 |
public boolean hasError(){ |
| 142 |
if (parser!=null) |
| 143 |
return parser.hasError();
|
| 144 |
else
|
| 145 |
return true; |
| 146 |
} |
| 147 |
|
| 148 |
|
| 149 |
|
| 150 |
/**
|
| 151 |
* Escritura del resultado en disco.
|
| 152 |
*/
|
| 153 |
private void writeToFile(){ |
| 154 |
try {
|
| 155 |
writerBufferServer = new WriterBufferServer(rasterResult);
|
| 156 |
aTransform = new AffineTransform(resultExtent.getCellSizeX(), 0.0, 0.0, -resultExtent.getCellSizeY(), resultExtent.getMin().getX(), resultExtent.getMax().getY()); |
| 157 |
GeoRasterWriter grw = GeoRasterWriter.getWriter(writerBufferServer, filePath, rasterResult.getBandCount(), aTransform, resultExtent.getNX(), resultExtent.getNY(), rasterResult.getDataType(), GeoRasterWriter.getWriter(filePath).getParams(), mapContext.getProjection()); |
| 158 |
grw.dataWrite(); |
| 159 |
grw.writeClose(); |
| 160 |
} catch (NotSupportedExtensionException e) {
|
| 161 |
RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_writer_notsupportedextension"), this, e); |
| 162 |
} catch (IOException e) { |
| 163 |
RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_writer"), this, e); |
| 164 |
} catch (InterruptedException e) { |
| 165 |
Thread.currentThread().interrupt();
|
| 166 |
} catch (RasterDriverException e) {
|
| 167 |
RasterToolsUtil.messageBoxError(PluginServices.getText(this, "raster_buffer_invalid_extension"), this, e); |
| 168 |
} |
| 169 |
|
| 170 |
mapContext.beginAtomicEvent(); |
| 171 |
FLayer lyr = null;
|
| 172 |
|
| 173 |
int endIndex = filePath.lastIndexOf("."); |
| 174 |
if (endIndex < 0) |
| 175 |
endIndex = filePath.length(); |
| 176 |
|
| 177 |
try {
|
| 178 |
lyr = FLyrRasterSE.createLayer( |
| 179 |
filePath.substring(filePath.lastIndexOf(File.separator) + 1, endIndex), |
| 180 |
new File(filePath), |
| 181 |
mapContext.getProjection()); |
| 182 |
} catch (LoadLayerException e) {
|
| 183 |
RasterToolsUtil.messageBoxError("error_cargar_capa", this, e); |
| 184 |
} |
| 185 |
|
| 186 |
mapContext.getLayers().addLayer(lyr); |
| 187 |
mapContext.endAtomicEvent(); |
| 188 |
mapContext.invalidate(); |
| 189 |
mapContext.endAtomicEvent(); |
| 190 |
} |
| 191 |
|
| 192 |
/**
|
| 193 |
* @return extent del resultado
|
| 194 |
*/
|
| 195 |
public GridExtent getResultExtent() {
|
| 196 |
return resultExtent;
|
| 197 |
} |
| 198 |
|
| 199 |
/**
|
| 200 |
* Asignaci?n del extent
|
| 201 |
* @param resultExtent
|
| 202 |
*/
|
| 203 |
public void setResultExtent(GridExtent resultExtent) { |
| 204 |
this.resultExtent = resultExtent;
|
| 205 |
} |
| 206 |
|
| 207 |
/*
|
| 208 |
* (non-Javadoc)
|
| 209 |
* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getLabel()
|
| 210 |
*/
|
| 211 |
public String getLabel() { |
| 212 |
return PluginServices.getText(this,"procesando"); |
| 213 |
} |
| 214 |
|
| 215 |
/*
|
| 216 |
* (non-Javadoc)
|
| 217 |
* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getLog()
|
| 218 |
*/
|
| 219 |
public String getLog() { |
| 220 |
if (writerBufferServer==null) |
| 221 |
return PluginServices.getText(this,"calculando_imagen")+"..."; |
| 222 |
else
|
| 223 |
return PluginServices.getText(this,"escribiendo_resultado")+"..."; |
| 224 |
} |
| 225 |
|
| 226 |
|
| 227 |
/*
|
| 228 |
* (non-Javadoc)
|
| 229 |
* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getPercent()
|
| 230 |
*/
|
| 231 |
public int getPercent() { |
| 232 |
if (writerBufferServer==null) |
| 233 |
return percent;
|
| 234 |
else
|
| 235 |
return writerBufferServer.getPercent();
|
| 236 |
} |
| 237 |
|
| 238 |
|
| 239 |
/*
|
| 240 |
* (non-Javadoc)
|
| 241 |
* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#getTitle()
|
| 242 |
*/
|
| 243 |
public String getTitle() { |
| 244 |
return PluginServices.getText(this,"band_math"); |
| 245 |
} |
| 246 |
|
| 247 |
/*
|
| 248 |
* (non-Javadoc)
|
| 249 |
* @see org.gvsig.gui.beans.incrementabletask.IIncrementable#actionCanceled
|
| 250 |
*/
|
| 251 |
public void actionCanceled(IncrementableEvent e) { |
| 252 |
if(writerBufferServer != null) |
| 253 |
rasterTask.setEvent(new CancelEvent(this)); |
| 254 |
cancel = true;
|
| 255 |
} |
| 256 |
|
| 257 |
|
| 258 |
public void init() { |
| 259 |
expression= getStringParam("expresion");
|
| 260 |
setExpression(expression); |
| 261 |
params= (HashMap )getParam("params"); |
| 262 |
resultExtent= (GridExtent) getParam("extent");
|
| 263 |
mapContext= (MapContext)getParam("mapcontext");
|
| 264 |
filePath= getStringParam("filepath");
|
| 265 |
} |
| 266 |
|
| 267 |
|
| 268 |
public void process() throws InterruptedException { |
| 269 |
RasterBuffer inputBuffer=null;
|
| 270 |
|
| 271 |
// Construccion del rasterbuffer que recoge el resultado del calculo
|
| 272 |
rasterResult = RasterBuffer.getBuffer(RasterBuffer.TYPE_DOUBLE, resultExtent.getNX() ,resultExtent.getNY(), 1, true); |
| 273 |
|
| 274 |
|
| 275 |
// Calculo de grid resultante
|
| 276 |
int iNX = resultExtent.getNX();
|
| 277 |
int iNY = resultExtent.getNY();
|
| 278 |
|
| 279 |
// Calculo de grid resultante
|
| 280 |
for (int x=0;x<iNX;x++){ |
| 281 |
if (cancel) return; //Proceso cancelado |
| 282 |
for(int y=0;y<iNY;y++){ |
| 283 |
int i=0; |
| 284 |
for (Iterator iter = params.keySet().iterator(); iter.hasNext();) { |
| 285 |
String varName = (String)iter.next(); |
| 286 |
Object data[]= (Object[])params.get(varName); |
| 287 |
inputBuffer= (RasterBuffer)data[0];
|
| 288 |
|
| 289 |
int dataType= ((Integer)data[1]).intValue(); |
| 290 |
double value=0; |
| 291 |
|
| 292 |
// BUFFER TIPO_BYTE
|
| 293 |
if(dataType == RasterBuffer.TYPE_BYTE){
|
| 294 |
value = inputBuffer.getElemByte(y, x, 0);
|
| 295 |
if(value!=inputBuffer.getNoDataValue()){
|
| 296 |
parser.setVarValue(varName,new Double(value)); |
| 297 |
i++; |
| 298 |
} |
| 299 |
|
| 300 |
else{
|
| 301 |
rasterResult.setElem(y, x, 0, rasterResult.noDataValue);
|
| 302 |
break;
|
| 303 |
} |
| 304 |
} |
| 305 |
|
| 306 |
// BUFFER TIPO_SHORT
|
| 307 |
else if(dataType== RasterBuffer.TYPE_SHORT){ |
| 308 |
value = inputBuffer.getElemShort(y, x, 0);
|
| 309 |
if(value!=inputBuffer.getNoDataValue()){
|
| 310 |
parser.setVarValue(varName,new Double(value)); |
| 311 |
i++; |
| 312 |
} |
| 313 |
else{
|
| 314 |
rasterResult.setElem(y, x, 0, rasterResult.noDataValue);
|
| 315 |
break;
|
| 316 |
} |
| 317 |
} |
| 318 |
|
| 319 |
// BUFFER TIPO_INT
|
| 320 |
else if(dataType == RasterBuffer.TYPE_INT){ |
| 321 |
value = inputBuffer.getElemInt(y, x,0);
|
| 322 |
if(value!=inputBuffer.getNoDataValue()){
|
| 323 |
parser.setVarValue(varName,new Double(value)); |
| 324 |
i++; |
| 325 |
} |
| 326 |
else{
|
| 327 |
rasterResult.setElem(y, x, 0, rasterResult.noDataValue);
|
| 328 |
break;
|
| 329 |
} |
| 330 |
} |
| 331 |
|
| 332 |
// BUFFER TIPO_FLOAT
|
| 333 |
else if(dataType == RasterBuffer.TYPE_FLOAT){ |
| 334 |
value = inputBuffer.getElemFloat(x, y,0);
|
| 335 |
if(value!=inputBuffer.getNoDataValue()){
|
| 336 |
parser.setVarValue(varName,new Double(value)); |
| 337 |
i++; |
| 338 |
} |
| 339 |
else{
|
| 340 |
rasterResult.setElem(y, x, 0, rasterResult.noDataValue);
|
| 341 |
break;
|
| 342 |
} |
| 343 |
} |
| 344 |
|
| 345 |
// BUFFER TIPO_DOUBLE
|
| 346 |
else if(dataType == RasterBuffer.TYPE_DOUBLE){ |
| 347 |
value = inputBuffer.getElemDouble(y, x,0);
|
| 348 |
if(value!=inputBuffer.getNoDataValue()){
|
| 349 |
parser.setVarValue(varName,new Double(value)); |
| 350 |
i++; |
| 351 |
} |
| 352 |
else{
|
| 353 |
rasterResult.setElem(y, x, 0, rasterResult.noDataValue);
|
| 354 |
break;
|
| 355 |
} |
| 356 |
} |
| 357 |
|
| 358 |
} |
| 359 |
// Evaluacion de la exprsion en el x,y.
|
| 360 |
if (i == params.size()){
|
| 361 |
rasterResult.setElem(y, x, 0, (double)parser.getValue()); |
| 362 |
percent = x*100/rasterResult.getWidth();
|
| 363 |
} |
| 364 |
} |
| 365 |
|
| 366 |
} |
| 367 |
// Escritura de los datos a disco
|
| 368 |
writeToFile(); |
| 369 |
|
| 370 |
} |
| 371 |
|
| 372 |
|
| 373 |
} |