Java tutorial
/* gvSIG. Sistema de Informacin Geogrfica de la Generalitat Valenciana * * Copyright (C) 2005 IVER T.I. and Generalitat Valenciana. * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version 2 * of the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,USA. */ package org.gvsig.gui.beans.graphic; import java.awt.BasicStroke; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Image; import javax.swing.BorderFactory; import javax.swing.ImageIcon; import javax.swing.JPanel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.Plot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; /** * Componente grfico de JFree * * @version 05/04/2007 * @author Nacho Brodin (brodin_ign@gva.es) * @author BorSanZa - Borja Snchez Zamorano (borja.sanchez@iver.es) */ public class GraphicChartPanel extends JPanel { private static final long serialVersionUID = 7328137487119964665L; private JFreeChart chart = null; private ChartPanel jPanelChart = null; private XYSeries series[] = new XYSeries[0]; private XYSeriesCollection dataset = null; private int viewType = 0; public GraphicChartPanel() { dataset = new XYSeriesCollection(); createChart(); initialize(); Plot plot = this.jPanelChart.getChart().getPlot(); plot.setOutlineStroke(new BasicStroke(1)); plot.setOutlinePaint(Color.black); chart.setBackgroundPaint(Color.white); plot.setBackgroundPaint(new Color(245, 245, 245)); } /** * This method initializes this */ private void initialize() { this.setLayout(new BorderLayout()); this.add(getChart(), BorderLayout.CENTER); } /** * @return */ public ChartPanel getChart() { if (jPanelChart == null) { jPanelChart = new ChartPanel(chart); jPanelChart.setBorder(BorderFactory.createLineBorder(Color.gray, 1)); } return jPanelChart; } /** * Creates a chart. * @param dataset the dataset. * @return A chart. */ private void createChart() { chart = ChartFactory.createXYLineChart(null, null, null, dataset, PlotOrientation.VERTICAL, false, true, true); // Definir la lista de colores XYPlot plot = chart.getXYPlot(); plot.getRenderer().setSeriesPaint(0, Color.red); plot.getRenderer().setSeriesPaint(1, Color.green); plot.getRenderer().setSeriesPaint(2, Color.blue); plot.getRenderer().setSeriesPaint(3, Color.cyan); plot.getRenderer().setSeriesPaint(4, Color.black); plot.getRenderer().setSeriesPaint(5, Color.darkGray); plot.getRenderer().setSeriesPaint(6, Color.gray); plot.getRenderer().setSeriesPaint(7, Color.magenta); plot.getRenderer().setSeriesPaint(8, Color.yellow); plot.getRenderer().setSeriesPaint(9, Color.orange); Image img = new ImageIcon(getClass().getResource("images/splash.png")).getImage(); plot.setBackgroundPaint(null); plot.setBackgroundImageAlpha(0.18f); plot.setBackgroundImage(img); } /** * Asigna nuevos valores para la grfica * @param values Matriz de [nmero de grficas][Valores por grfica] */ public void setNewChart(int[][] values, String names[]) { series = new XYSeries[values.length]; for (int iGraf = 0; iGraf < values.length; iGraf++) { series[iGraf] = new XYSeries(names[iGraf]); for (int i = 0; i < values[iGraf].length; i++) { series[iGraf].add(new Integer(i), new Integer(values[iGraf][i])); } } reloadGraphic(); } /** * Asigna nuevos valores para la grfica * @param values Matriz de [nmero de grficas][Valores por grfica] */ public void setNewChart(double[][][] values, String names[]) { series = new XYSeries[values.length]; for (int iGraf = 0; iGraf < values.length; iGraf++) { series[iGraf] = new XYSeries(names[iGraf]); for (int i = 0; i < values[iGraf].length; i++) { series[iGraf].add(values[iGraf][i][0], values[iGraf][i][1]); } } reloadGraphic(); } /** * Define el tipo de visualizacion para la grafica. * Valores: 0 - Normal, 1 - Acumulado, 2 - Logaritmico * @param type */ public void setViewType(int type) { this.viewType = type; reloadGraphic(); } /** * Recarga los datos de la grafica dependiendo del tipo de visualizacion */ private void reloadGraphic() { dataset.removeAllSeries(); switch (viewType) { case 0: // Normal for (int i = 0; i < series.length; i++) dataset.addSeries(series[i]); break; case 1: // Acumulado XYSeries[] seriesAcum = new XYSeries[series.length]; for (int i = 0; i < series.length; i++) { seriesAcum[i] = new XYSeries(series[i].getKey()); double total = 0; for (int j = 0; j < series[i].getItemCount(); j++) { total += series[i].getY(j).doubleValue(); seriesAcum[i].add(series[i].getX(j), total); } dataset.addSeries(seriesAcum[i]); } break; case 2: // Logaritmico XYSeries[] seriesLog = new XYSeries[series.length]; double minim = Double.MAX_VALUE; for (int i = 0; i < series.length; i++) for (int j = 0; j < series[i].getItemCount(); j++) if (minim > series[i].getY(j).doubleValue()) minim = series[i].getY(j).doubleValue(); for (int i = 0; i < series.length; i++) { seriesLog[i] = new XYSeries(series[i].getKey()); for (int j = 0; j < series[i].getItemCount(); j++) seriesLog[i].add(series[i].getX(j), java.lang.Math.log(series[i].getY(j).doubleValue() - minim + 1.0)); dataset.addSeries(seriesLog[i]); } break; } jPanelChart.repaint(); } /** * Limpia la grfica */ public void cleanChart() { series = new XYSeries[0]; reloadGraphic(); } }