svn-gvsig-desktop / branches / v2_0_0_prep / libraries / libRaster / src / org / gvsig / raster / grid / filter / enhancement / EnhancementListManager.java @ 29786
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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 IVER T.I. 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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package org.gvsig.raster.grid.filter.enhancement; |
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import java.util.ArrayList; |
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import org.gvsig.raster.dataset.FileNotOpenException; |
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import org.gvsig.raster.dataset.Params; |
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import org.gvsig.raster.dataset.RasterDriverException; |
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import org.gvsig.raster.grid.filter.FilterTypeException; |
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import org.gvsig.raster.grid.filter.IRasterFilterListManager; |
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import org.gvsig.raster.grid.filter.RasterFilter; |
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import org.gvsig.raster.grid.filter.RasterFilterList; |
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import org.gvsig.raster.grid.filter.RasterFilterListManager; |
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import org.gvsig.raster.grid.filter.statistics.StatisticsListManager; |
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import org.gvsig.raster.hierarchy.IStatistics; |
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import org.gvsig.tools.ToolsLocator; |
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import org.gvsig.tools.extensionpoint.ExtensionPoint; |
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import org.gvsig.tools.extensionpoint.ExtensionPointManager; |
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/**
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* Gestor de la pila de filtros para el filtro de realce.
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* @author Nacho Brodin (nachobrodin@gmail.com)
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*/
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public class EnhancementListManager implements IRasterFilterListManager { |
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protected RasterFilterList filterList = null; |
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private RasterFilterListManager filterListManager = null; |
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private IStatistics stats = null; |
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/**
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* Constructor
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* @param filterListManager
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*/
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public EnhancementListManager(RasterFilterListManager filterListManager) {
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this.filterListManager = filterListManager;
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this.filterList = filterListManager.getFilterList();
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stats = (IStatistics)filterList.getEnvParam("IStatistics");
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} |
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/**
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* Asigna el objeto con las estadisticas.
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* @param stats
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*/
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public void setStatistics(IStatistics stats) { |
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this.stats = stats;
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} |
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/**
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* Registra EnhancementListManager en los puntos de extension de RasterFilter
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*/
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public static void register() { |
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ExtensionPointManager extensionPoints =ToolsLocator.getExtensionPointManager(); |
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ExtensionPoint point=extensionPoints.get("RasterFilter");
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point.append("Enhancement", "", EnhancementListManager.class); |
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} |
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/**
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* A?ade un filtro de realce.
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* La forma de inserci?n del filtro es fija ya que la inserci?n de un realce lleva implicita
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* la inserci?n de un filtro de recorte de colas (tailtrim), aunque no en todos los casos.
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* Si ya existe un filtro de realce en la lista se obtiene la posici?n de este.
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* Si es necesario un recorte de colas entonces se comprueba si existe un uno reemplazandose
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* por el nuevo y sino se insertar? uno. Al final reemplazamos el realce que existia.
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*
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* Si por el contrario no existen realce ni trim se a?aden ambos al final de la lista.
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* @param removeEnds eliminar extremos en los m?ximos y m?nimos
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* @param stats Objeto de estadisticas asociado
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* @param tailTrim porcentaje de recorte de colas. Ser? un valor entre 0 y 1.
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* @param insertionMode Modo de inserci?n
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* @param renderBands bandas RGB mostradas en la visualizaci?n.
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* @throws FilterTypeException
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*/
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public void addEnhancedFilter(boolean removeEnds, IStatistics stats, double tailTrim, int[] renderBands) throws FilterTypeException { |
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try {
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if (tailTrim == 0) { // En este caso siempre es necesario el m?ximo y |
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// m?nimo
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if (!stats.isCalculated()) {
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try {
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stats.calcFullStatistics(); |
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} catch (FileNotOpenException e) {
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// No podemos aplicar el filtro
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return;
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} catch (RasterDriverException e) {
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// No podemos aplicar el filtro
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return;
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} |
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} |
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} else {
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StatisticsListManager slm = new StatisticsListManager(filterListManager, stats);
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slm.addTailFilter(tailTrim, 0D, removeEnds, stats);
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} |
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RasterFilter filter = createEnhancedFilter(removeEnds, stats, tailTrim, renderBands); |
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if (filter != null) |
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filterList.add(filter); |
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} catch (InterruptedException e) { |
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//Si se ha interrumpido no a?adimos el filtro
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} |
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} |
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public static RasterFilter createEnhancedFilter(boolean removeEnds, IStatistics stats, double tailTrim, int[] renderBands) { |
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RasterFilter filter = new LinearEnhancementFloatFilter();
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if (filter != null) { |
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filter.addParam("stats", stats);
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if (removeEnds) {
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filter.addParam("remove", new Boolean(true)); |
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} else {
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filter.addParam("remove", new Boolean(false)); |
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} |
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filter.addParam("tailTrim", new Double(tailTrim)); |
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filter.addParam("renderBands", renderBands);
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} |
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return filter;
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} |
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/**
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* Obtiene un Array de Strings a partir de una pila de filtros. Cada elemento
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* del array tendr? la forma de elemento=valor.
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*/
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public ArrayList getStringsFromFilterList(ArrayList filterList, RasterFilter rf) { |
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if (rf instanceof LinearEnhancementFilter) { |
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filterList.add("filter.enhanced.active=true");
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filterList.add("filter.enhanced.tailTrim=" + ((LinearEnhancementFilter) rf).getTailTrim().toString());
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StringBuffer values = new StringBuffer(); |
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for (int i = 0; i < ((LinearEnhancementFilter) rf).renderBands.length; i++) { |
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values.append(((LinearEnhancementFilter) rf).renderBands[i]); |
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if (i < ((LinearEnhancementFilter) rf).renderBands.length - 1) |
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values.append(",");
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} |
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filterList.add("filter.enhanced.renderbands=" + values.toString());
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filterList.add("filter.enhanced.remove=" + ((LinearEnhancementFilter) rf).getRemoveEnds().toString());
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} |
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return filterList;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.grid.filter.IRasterFilterListManager#createFilterListFromStrings(java.util.ArrayList, java.lang.String, int)
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*/
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public int createFilterListFromStrings(ArrayList filters, String fil, int filteri) throws FilterTypeException { |
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if (fil.startsWith("filter.enhanced.active") && RasterFilterListManager.getValue(fil).equals("true") && stats != null) { |
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filters.remove(filteri); |
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double tailTrim = 0D; |
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int[] renderBands = new int[] { 0, 0, 0 }; |
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for (int propFilter = 0; propFilter < filters.size(); propFilter++) { |
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String elem = (String) filters.get(propFilter); |
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if (elem.startsWith("filter.enhanced.tailTrim")) { |
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try {
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tailTrim = new Double(RasterFilterListManager.getValue(elem)).doubleValue(); |
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} catch (NumberFormatException ex) { |
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// tailTrim sigue valiendo 0
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} |
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} |
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if (elem.startsWith("filter.enhanced.renderbands")) { |
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String value = RasterFilterListManager.getValue(elem);
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String[] valueList = value.split(","); |
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renderBands = new int[valueList.length]; |
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for (int i = 0; i < renderBands.length; i++) { |
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try {
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renderBands[i] = Integer.parseInt(valueList[i]);
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} catch (NumberFormatException e) { |
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// No a?ade el valor
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} |
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} |
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// filters.remove(propFilter);
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// propFilter--;
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} |
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if (elem.startsWith("filter.enhanced.remove")) { |
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addEnhancedFilter(Boolean.valueOf(RasterFilterListManager.getValue(elem)).booleanValue(), stats, tailTrim, renderBands);
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filters.remove(propFilter); |
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propFilter--; |
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} |
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} |
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filteri = -1;
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} |
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return filteri;
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} |
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/*
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* (non-Javadoc)
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* @see org.gvsig.raster.grid.filter.IRasterFilterListManager#getRasterFilterList()
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*/
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public ArrayList getRasterFilterList() { |
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ArrayList filters = new ArrayList(); |
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filters.add(LinearEnhancementFilter.class); |
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return filters;
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} |
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public void addFilter(Class classFilter, Params params) throws FilterTypeException { |
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if (classFilter.equals(LinearEnhancementFilter.class)) {
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boolean removeEnds = false; |
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double tailTrim = 0.0; |
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int[] renderBands = { 0, 1, 2 }; |
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for (int i = 0; i < params.getNumParams(); i++) { |
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if (params.getParam(i).id.equals("RenderBands") && |
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params.getParam(i).defaultValue instanceof String) { |
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String[] bands = new String((String) params.getParam(i).defaultValue).split(" "); |
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renderBands[0] = new Integer(bands[0]).intValue(); |
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renderBands[1] = new Integer(bands[1]).intValue(); |
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renderBands[2] = new Integer(bands[2]).intValue(); |
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continue;
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} |
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if (params.getParam(i).id.equals("RemoveEnds") && |
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params.getParam(i).defaultValue instanceof Boolean) { |
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removeEnds = ((Boolean) params.getParam(i).defaultValue).booleanValue();
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continue;
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} |
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if (params.getParam(i).id.equals("TailTrim") && |
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params.getParam(i).defaultValue instanceof Double) |
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tailTrim = ((Double) params.getParam(i).defaultValue).doubleValue() / 100.0; |
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} |
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addEnhancedFilter(removeEnds, (IStatistics) filterList.getEnvParam("IStatistics"), tailTrim, renderBands);
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} |
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} |
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} |