Revision 28299 branches/v2_0_0_prep/extensions/extRemoteSensing/src/org/gvsig/remotesensing/gridmath/GridMathProcess.java
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/* gvSIG. Sistema de Informaci?n Geogr?fica de la Generalitat Valenciana
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/* gvSIG. Sistema de Informaci�n Geogr�fica de la Generalitat Valenciana
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* |
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* Copyright (C) 2006 Instituto de Desarrollo Regional and Generalitat Valenciana. |
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* |
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* |
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* Generalitat Valenciana |
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* Conselleria d'Infraestructures i Transport |
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* Av. Blasco Iba?ez, 50
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* Av. Blasco Iba�ez, 50
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* 46010 VALENCIA |
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* SPAIN |
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* |
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import com.iver.andami.PluginServices; |
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/** |
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* GridMathProcess implenta la funcionalidad para el c?lculo de operaciones entre grids.
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* El proceso permite hacer operaciones matem?ticas entre los valores de las bandas de la misma imagen o entre
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* diferentes im?genes bajo ciertas restricciones espaciales (siempre sobre los datos originales).
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* GridMathProcess implenta la funcionalidad para el c�lculo de operaciones entre grids.
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* El proceso permite hacer operaciones matem�ticas entre los valores de las bandas de la misma imagen o entre
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* diferentes im�genes bajo ciertas restricciones espaciales (siempre sobre los datos originales).
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* |
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* @author Alejandro Mu?oz Sanchez (alejandro.munoz@uclm.es)
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* @author Alejandro Mu�oz Sanchez (alejandro.munoz@uclm.es)
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* @author Diego Guerrero Sevilla (diego.guerrero@uclm.es) |
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* @version 19/10/2007 |
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* |
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/** |
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* Establece la expresi?n en el parser
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* Establece la expresi�n en el parser
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* @param expression expresion |
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*/ |
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public void setExpression(String expression){
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} |
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/** |
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* @return expresi?n a evaluar
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* @return expresi�n a evaluar
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*/ |
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public String getExpression() {
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return expression; |
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} |
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/** |
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* Asignaci?n del extent
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* Asignaci�n del extent
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* @param resultExtent |
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*/ |
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public void setResultExtent(GridExtent resultExtent) {
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public void process() throws InterruptedException {
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RasterBuffer inputBuffer=null; |
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// Construccion del rasterbuffer que recoge el resultado del calculo |
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// Construccion del rasterbuffer que recoge el resultado del calculo
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rasterResult = RasterBuffer.getBuffer(RasterBuffer.TYPE_DOUBLE, resultExtent.getNX() ,resultExtent.getNY(), 1, true); |
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// Calculo de grid resultante |
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int iNX = resultExtent.getNX(); |
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int iNY = resultExtent.getNY(); |
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// Calculo de grid resultante |
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for (int x=0;x<iNX;x++){
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if (cancel) return; //Proceso cancelado |
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if (cancel) return; //Proceso cancelado
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for(int y=0;y<iNY;y++){
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int i=0; |
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for (Iterator iter = params.keySet().iterator(); iter.hasNext();) {
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String varName = (String)iter.next(); |
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Object data[]= (Object[])params.get(varName); |
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inputBuffer= (RasterBuffer)data[0]; |
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int dataType= ((Integer)data[1]).intValue(); |
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double value=0; |
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value = RemoteSensingUtils.getCellValueInLayerCoords(inputBuffer, x, y, 0); |
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if(value!=inputBuffer.getNoDataValue()){
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parser.setVarValue(varName,new Double(value)); |
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i++; |
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if(dataType==IBuffer.TYPE_BYTE){
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value =(byte) RemoteSensingUtils.getCellValueInLayerCoords(inputBuffer, x, y, 0); |
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if(value!=inputBuffer.getNoDataValue()){
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parser.setVarValue(varName,new Double(value)); |
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i++; |
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}else{
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rasterResult.setElem(y, x, 0, rasterResult.noDataValue); |
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break; |
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} |
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}else{
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rasterResult.setElem(x, y, 0, rasterResult.noDataValue); |
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break; |
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value =RemoteSensingUtils.getCellValueInLayerCoords(inputBuffer, x, y, 0); |
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if(value!=inputBuffer.getNoDataValue()){
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parser.setVarValue(varName,new Double(value)); |
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i++; |
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}else{
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rasterResult.setElem(y, x, 0, rasterResult.noDataValue); |
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break; |
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} |
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} |
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} |
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// Evaluacion de la exprsion en el x,y. |
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// Evaluacion de la expresion en el x,y.
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if (i == params.size()){
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rasterResult.setElem(y, x, 0, (double)parser.getValue()); |
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percent = x*100/rasterResult.getHeight();
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} |
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} |
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percent = x*100/rasterResult.getWidth();
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}
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}
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} |
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// Escritura de los datos a disco |
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writeToFile(); |
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} |
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void loadBuffers(){
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int nBand; |
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