svn-gvsig-desktop / trunk / extensions / extRemoteSensing / src / org / gvsig / remotesensing / decisiontrees / DecisionTreeProcess.java @ 20393
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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) 2007 Instituto de Desarrollo Regional and Generalitat Valenciana.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA.
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*
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* For more information, contact:
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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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* 46010 VALENCIA
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* SPAIN
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*
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* +34 963862235
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* gvsig@gva.es
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* www.gvsig.gva.es
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*
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* or
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*
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* Instituto de Desarrollo Regional (Universidad de Castilla La-Mancha)
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* Campus Universitario s/n
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* 02071 Alabacete
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* Spain
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*
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* +34 967 599 200
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*/
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package org.gvsig.remotesensing.decisiontrees; |
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import java.awt.geom.AffineTransform; |
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import java.io.IOException; |
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import java.util.HashMap; |
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import java.util.Iterator; |
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import org.gvsig.raster.RasterProcess; |
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import org.gvsig.raster.buffer.RasterBuffer; |
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import org.gvsig.raster.buffer.WriterBufferServer; |
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import org.gvsig.raster.dataset.GeoRasterWriter; |
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import org.gvsig.raster.dataset.NotSupportedExtensionException; |
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import org.gvsig.raster.dataset.io.RasterDriverException; |
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import org.gvsig.raster.grid.GridExtent; |
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import org.gvsig.raster.process.RasterTaskQueue; |
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import org.gvsig.raster.util.RasterToolsUtil; |
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import org.gvsig.remotesensing.gridmath.NoAssignedVarsException; |
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import org.nfunk.jep.Variable; |
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import com.iver.andami.PluginServices; |
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/**
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* Proceso para la generaci?n de un raster de clasificaci?n mediante un ?rbol de decisi?n.
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*
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* @author Diego Guerrero Sevilla (diego.guerrero@uclm.es)
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*
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*/
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public class DecisionTreeProcess extends RasterProcess { |
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private DecisionTreeNode tree = null; |
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private HashMap varsTable = null; |
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private String fileName = null; |
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private int percent = 0; |
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private GridExtent resultExtent = null; |
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private RasterBuffer rasterResult = null; |
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private boolean cancel = false; |
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private WriterBufferServer writerBufferServer = null; |
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/**
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* Escritura del resultado en disco.
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*/
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private void loadLAyer(){ |
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try{
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writerBufferServer = new WriterBufferServer(rasterResult);
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AffineTransform aTransform = new AffineTransform(resultExtent.getCellSize(),0.0,0.0,-resultExtent.getCellSize(),resultExtent.getMin().getX(),resultExtent.getMax().getY()); |
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GeoRasterWriter grw = GeoRasterWriter.getWriter(writerBufferServer, fileName, rasterResult.getBandCount(),aTransform, resultExtent.getNX(),resultExtent.getNY(),rasterResult.getDataType(), GeoRasterWriter.getWriter(fileName).getParams(),null);
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grw.dataWrite(); |
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grw.writeClose(); |
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}catch(NotSupportedExtensionException e){
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RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_writer_notsupportedextension"), this, e); |
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} catch (IOException e) { |
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RasterToolsUtil.messageBoxError(PluginServices.getText(this, "error_writer"), this, e); |
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}catch(InterruptedException e){ |
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Thread.currentThread().interrupt();
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} catch (RasterDriverException e) {
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RasterToolsUtil.messageBoxError(PluginServices.getText(this, "raster_buffer_invalid_extension"), this, e); |
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} |
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} |
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public int getPercent() { |
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if (writerBufferServer==null) |
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return percent;
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else
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return writerBufferServer.getPercent();
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} |
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public String getTitle() { |
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return PluginServices.getText(this,"arbol_decision"); |
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} |
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public void init() { |
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tree = (DecisionTreeNode)getParam("tree");
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varsTable = (HashMap)getParam("varsTable"); |
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fileName = getStringParam("filename");
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resultExtent = (GridExtent)getParam("resultExtent");
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} |
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public void process() throws InterruptedException { |
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RasterTaskQueue.register(rasterTask); |
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RasterBuffer inputBuffer=null;
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try{
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// Construccion del rasterbuffer que recoge el resultado del calculo
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rasterResult = RasterBuffer.getBuffer(RasterBuffer.TYPE_INT, 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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for(int y=0;y<iNY;y++){ |
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int i=0; |
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for (Iterator iter = varsTable.keySet().iterator(); iter.hasNext();) { |
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String varName = (String)iter.next(); |
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Object data[]= (Object[])varsTable.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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// BUFFER TIPO_BYTE
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if(dataType == RasterBuffer.TYPE_BYTE){
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value = inputBuffer.getElemByte(y, x, 0);
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if(value!=inputBuffer.getNoDataValue()){
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tree.setVarValue(varName,new Double(value)); |
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i++; |
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} |
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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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// BUFFER TIPO_SHORT
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else if(dataType == RasterBuffer.TYPE_SHORT){ |
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value = inputBuffer.getElemShort(y, x, 0);
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if(value!=inputBuffer.getNoDataValue()){
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tree.setVarValue(varName,new Double(value)); |
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i++; |
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} |
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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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// BUFFER TIPO_INT
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else if(dataType == RasterBuffer.TYPE_INT){ |
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value = inputBuffer.getElemInt(y, x, 0);
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if(value!=inputBuffer.getNoDataValue()){
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tree.setVarValue(varName,new Double(value)); |
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i++; |
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} |
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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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// BUFFER TIPO_FLOAT
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else if(dataType == RasterBuffer.TYPE_FLOAT){ |
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value = inputBuffer.getElemFloat(y, x, 0);
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if(value!=inputBuffer.getNoDataValue()){
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tree.setVarValue(varName,new Double(value)); |
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i++; |
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} |
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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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// BUFFER TIPO_DOUBLE
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else if(dataType == RasterBuffer.TYPE_DOUBLE){ |
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value = inputBuffer.getElemDouble(y, x, 0);
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if(value!=inputBuffer.getNoDataValue()){
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tree.setVarValue(varName,new Double(value)); |
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i++; |
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} |
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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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if (i == varsTable.size()){
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rasterResult.setElem(y, x, 0, tree.execute());
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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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loadLAyer(); |
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}finally{
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externalActions.end(fileName); |
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} |
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} |
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} |