root / trunk / extensions / extRasterTools-SE / src / org / gvsig / rastertools / enhanced / graphics / HistogramGraphicBase.java @ 21135
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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 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.rastertools.enhanced.graphics; |
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import java.awt.BorderLayout; |
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import java.awt.Color; |
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import java.util.ArrayList; |
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import javax.swing.JPanel; |
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import org.gvsig.fmap.raster.layers.FLyrRasterSE; |
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import org.gvsig.raster.beans.canvas.GCanvas; |
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import org.gvsig.raster.beans.canvas.layers.GraphicHistogram; |
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import org.gvsig.raster.beans.canvas.layers.InfoLayer; |
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import org.gvsig.raster.beans.canvas.layers.MinMaxLines; |
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import org.gvsig.raster.beans.canvas.layers.functions.BaseFunction; |
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import org.gvsig.raster.beans.canvas.layers.functions.DensitySlicingLine; |
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import org.gvsig.raster.beans.canvas.layers.functions.StraightLine; |
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import org.gvsig.raster.datastruct.Histogram; |
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/**
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* Clase base para los gr?ficos de histogramas de entrada y salida.
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*
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* 20/02/2008
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* @author Nacho Brodin nachobrodin@gmail.com
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*/
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public abstract class HistogramGraphicBase extends JPanel { |
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protected Color minMaxLineColor = Color.WHITE; |
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protected Color borderColor = Color.WHITE; |
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protected Color functionColor = Color.YELLOW; |
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/**
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* Clase para tener guardados los valores de estado de una banda del histograma
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*
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* @version 04/03/2008
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* @author BorSanZa - Borja S?nchez Zamorano (borja.sanchez@iver.es)
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*/
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public class HistogramStatus { |
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private double[] histogram = new double[] { 0, 0, 3, 4, 5, 8, 7, 18, 45, 36, 21, 36, 12, 23, 23, 40, 17, 10, 5, 1, 0, 0, 0 }; |
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private double min = 0.0D; |
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private double max = 1.0D; |
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private BaseFunction baseFunction = null; |
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private GraphicHistogram graphicHistogram = null; |
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private MinMaxLines minMaxLines = null; |
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private InfoLayer infoLayer = null; |
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public HistogramStatus(Color color) { |
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graphicHistogram = new GraphicHistogram(color);
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graphicHistogram.setType(GraphicHistogram.TYPE_LINE); |
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baseFunction = new StraightLine(functionColor);
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minMaxLines = new MinMaxLines(minMaxLineColor);
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infoLayer = new InfoLayer(Color.WHITE); |
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} |
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/**
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* Establece los valores minimo y maximo
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* @param min
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* @param max
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*/
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public void setLimits(double min, double max) { |
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this.min = min;
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this.max = max;
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infoLayer.setLimits(min, max); |
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} |
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/**
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* @return the histogram
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*/
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public double[] getHistogram() { |
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return histogram;
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} |
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/**
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* @param histogram the histogram to set
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*/
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public void setHistogram(double[] histogram) { |
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graphicHistogram.setHistogramDrawed(histogram); |
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this.histogram = histogram;
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} |
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/**
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* @return the graphicHistogram
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*/
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public GraphicHistogram getGraphicHistogram() {
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return graphicHistogram;
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} |
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/**
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* @return the minMaxLines
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*/
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public MinMaxLines getMinMaxLines() {
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return minMaxLines;
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} |
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/**
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* @return the straightLine
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*/
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public BaseFunction getBaseFunction() {
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return baseFunction;
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} |
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/**
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* Asigna la funci?n dibujada. Por defecto se crea con StraightLine
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* pero puede ser modificada.
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* @param baseFunction BaseFunction
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*/
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public void setBaseFunction(BaseFunction baseFunction) { |
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this.baseFunction = baseFunction;
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} |
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/**
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* N?mero de cortes cuando es una funci?n level slice
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* @param level
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*/
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public void setLevel(int level) { |
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if(baseFunction instanceof DensitySlicingLine) |
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((DensitySlicingLine)baseFunction).setShape(level); |
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} |
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/**
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* @return the min
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*/
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public double getMin() { |
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return min;
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} |
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/**
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* @return the max
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*/
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public double getMax() { |
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return max;
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} |
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/**
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* @return the infoLayer
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*/
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public InfoLayer getInfoLayer() {
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return infoLayer;
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} |
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} |
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/**
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* Constantes que identifican un histograma con una banda
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*/
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public final static int RED = 0; |
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public final static int GREEN = 1; |
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public final static int BLUE = 2; |
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public final static int GRAY = 3; |
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/**
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* Constante para poder coger el histograma visualizado en ese momento
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*/
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public final static int DRAWED = 4; |
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protected GCanvas canvas = null; |
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protected HistogramStatus histogramRed = null; |
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protected HistogramStatus histogramGreen = null; |
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protected HistogramStatus histogramBlue = null; |
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protected HistogramStatus histogramGray = null; |
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protected HistogramStatus histogramDrawed = null; |
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private FLyrRasterSE lyr = null; |
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public HistogramGraphicBase(Histogram hist, FLyrRasterSE lyr, double[] minList, double[] maxList) { |
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this.lyr = lyr;
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setHistogram(hist, minList, maxList); |
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initialize(); |
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} |
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private void initialize() { |
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this.setLayout(new BorderLayout()); |
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this.add(getCanvas(), BorderLayout.CENTER); |
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} |
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/**
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* Crea la lista de objetos dibujables y la guarda en un array
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*/
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public void setHistogram(Histogram hist, double[] minList, double[] maxList) { |
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long[][] table = hist.getTable(); |
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if (lyr.isRenderingAsGray()) {
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setHistogramBand(GRAY, minList, maxList, table); |
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setHistogramBand(RED, minList, maxList, table); |
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setHistogramBand(GREEN, minList, maxList, table); |
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setHistogramBand(BLUE, minList, maxList, table); |
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} else {
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setHistogramBand(RED, minList, maxList, table); |
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setHistogramDrawed(RED); |
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setHistogramBand(GREEN, minList, maxList, table); |
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setHistogramBand(BLUE, minList, maxList, table); |
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} |
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} |
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/**
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* Define el histograma para una banda de color
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* @param COLOR Banda al que se le aplicara el histograma
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* @param minList Lista de minimos
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* @param maxList Lista de maximos
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* @param table Tabla de valores de un histograma
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*/
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private void setHistogramBand(int COLOR, double[] minList, double[] maxList, long[][] table) { |
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int position = 0; |
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switch (COLOR) {
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case GREEN:
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position = 1;
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break;
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case BLUE:
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position = 2;
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break;
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} |
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int[] renderBands = lyr.getRenderBands(); |
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if (position >= renderBands.length)
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return;
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int band = renderBands[position];
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if ((band < 0) || (band >= table.length)) |
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return;
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double histogram[] = new double[table[band].length]; |
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for (int i = 0; i < histogram.length; i++) |
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histogram[i] = (double) table[band][i];
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setHistogram(histogram, COLOR); |
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HistogramStatus histogramStatus = getHistogramStatus(COLOR); |
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if (histogramStatus == null) |
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return;
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if ((band >= minList.length) || (band >= maxList.length))
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return;
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histogramStatus.setLimits(minList[band], maxList[band]); |
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} |
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/**
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* Asigna el histograma marcado con la interpretaci?n de color indicada.
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* @param hist Histograma a asignar
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* @param colorInterp Band a la que corresponde el histograma
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*/
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public void setHistogram(double[] hist, int colorInterp) { |
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switch (colorInterp) {
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case GREEN:
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if (histogramGreen == null) |
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histogramGreen = new HistogramStatus(Color.green); |
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histogramGreen.setHistogram(hist); |
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break;
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case BLUE:
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if (histogramBlue == null) |
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histogramBlue = new HistogramStatus(Color.blue); |
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histogramBlue.setHistogram(hist); |
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break;
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case GRAY:
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if (histogramGray == null) |
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histogramGray = new HistogramStatus(Color.gray); |
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histogramGray.setHistogram(hist); |
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break;
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default: // Banda roja |
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if (histogramRed == null) |
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histogramRed = new HistogramStatus(Color.red); |
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histogramRed.setHistogram(hist); |
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break;
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} |
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if (histogramDrawed == null) |
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setHistogramDrawed(colorInterp); |
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} |
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/**
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* Devuelve el estado del histograma seleccionado
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* @param colorInterp
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* @return
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*/
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public HistogramStatus getHistogramStatus(int colorInterp) { |
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switch (colorInterp) {
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case RED:
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return histogramRed;
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case GREEN:
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return histogramGreen;
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case BLUE:
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return histogramBlue;
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case GRAY:
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return histogramGray;
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case DRAWED:
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return histogramDrawed;
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} |
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return null; |
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} |
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/**
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* Asigna el histograma dibujado
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* @param colorInterp
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*/
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public void setHistogramDrawed(int colorInterp) { |
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switch (colorInterp) {
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case RED:
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histogramDrawed = histogramRed; |
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break;
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case GREEN:
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histogramDrawed = histogramGreen; |
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break;
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case BLUE:
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histogramDrawed = histogramBlue; |
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break;
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case GRAY:
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histogramDrawed = histogramGray; |
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break;
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} |
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if (histogramDrawed != null) { |
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getCanvas().replaceDrawableElement(histogramDrawed.getGraphicHistogram()); |
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getCanvas().replaceDrawableElement(histogramDrawed.getMinMaxLines()); |
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getCanvas().replaceDrawableElement(histogramDrawed.getBaseFunction(), BaseFunction.class); |
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getCanvas().replaceDrawableElement(histogramDrawed.getInfoLayer()); |
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getCanvas().repaint(); |
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} |
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} |
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/**
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* Asigna el tipo de histograma Standard/Cumulative
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* @param type Tipo de histograma. El valor est? definido en las constantes de GraphicHistogram
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*/
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public void setHistogramType(int type) { |
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if (histogramDrawed != null) |
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histogramDrawed.getGraphicHistogram().setTypeViewed(type); |
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} |
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/**
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* Asigna el tipo
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* @param type
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*/
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public void setType(int type) { |
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ArrayList elements = getCanvas().getDrawableElements(GraphicHistogram.class);
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for (int i = 0; i < elements.size(); i++) |
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((GraphicHistogram) elements.get(i)).setType(type); |
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} |
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/**
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* Obtiene el lienzo donde se dibujan las gr?ficas
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* @return GCanvas
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*/
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public abstract GCanvas getCanvas(); |
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} |