Java tutorial
/**************************************************** Statistics Online Computational Resource (SOCR) http://www.StatisticsResource.org All SOCR programs, materials, tools and resources are developed by and freely disseminated to the entire community. Users may revise, extend, redistribute, modify under the terms of the Lesser GNU General Public License as published by the Open Source Initiative http://opensource.org/licenses/. All efforts should be made to develop and distribute factually correct, useful, portable and extensible resource all available in all digital formats for free over the Internet. SOCR resources are distributed in the hope that they will be useful, but without any warranty; without any explicit, implicit or implied warranty for merchantability or fitness for a particular purpose. See the GNU Lesser General Public License for more details see http://opensource.org/licenses/lgpl-license.php. http://www.SOCR.ucla.edu http://wiki.stat.ucla.edu/socr It s Online, Therefore, It Exists! ****************************************************/ package edu.ucla.stat.SOCR.chart; import java.awt.BorderLayout; import java.awt.Color; import java.awt.Container; import java.awt.Dimension; import java.beans.PropertyChangeEvent; import java.beans.PropertyChangeListener; import java.lang.reflect.Array; import java.text.DecimalFormat; import java.util.ArrayList; import java.util.Observable; import java.util.Observer; import java.util.StringTokenizer; import java.lang.NumberFormatException; import javax.swing.BoxLayout; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.TableColumnModel; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYItemRenderer; //import org.jfree.data.contour.DefaultContourDataset; import org.jfree.data.xy.DefaultXYZDataset; import org.jfree.data.xy.XYZDataset; import edu.ucla.stat.SOCR.chart.data.SampleXYZDataset; import edu.ucla.stat.SOCR.chart.gui.SOCRXYZSeriesLabelGenerator; import edu.ucla.stat.SOCR.util.EditableHeader; import edu.ucla.stat.SOCR.util.PercentSlider; /** * A simple demonstration application showing how to create a Bubble chart. */ public class SuperBubbleChart extends SuperXYZChart { protected double zScale = 1; /** * * @param isDemo data come from demo(true) or dataTable(false) * @return */ protected XYZDataset createDataset(boolean isDemo) { if (isDemo) { XYZDataset dataset = new SampleXYZDataset(); domainLabel = "X"; rangeLabel = "Y"; return dataset; } else { setXYZArray(); int len = Array.getLength(x); /* Object[] xData = new Object[len]; Object[] yData = new Object[len]; Object[] zData = new Object[len]; for (int i=0; i<len; i++){ xData[i]=new Double(x[i]); yData[i]=new Double(y[i]); zData[i]=new Double(z[i]); } // create the dataset... DefaultContourDataset dataset = new DefaultContourDataset((Comparable)independentHeaders[0].substring(0,independentHeaders[0].indexOf(":")), xData, yData, zData); */ double[][] data = new double[3][len]; double zMax = z[0]; double xMax = x[0]; double yMax = y[0]; for (int i = 1; i < len; i++) { if (x[i] > xMax) xMax = x[i]; if (y[i] > yMax) yMax = y[i]; if (z[i] > zMax) zMax = z[i]; } if (xMax > yMax) xMax = yMax; if (zMax > xMax * 0.75) zScale = (xMax * 0.75) / zMax; zScale = zScale * zShrinkPercent / 100; //System.out.println("zScale="+zScale); for (int i = 0; i < len; i++) { data[0][i] = x[i]; data[1][i] = y[i]; data[2][i] = z[i] * zScale; } DefaultXYZDataset dataset = new DefaultXYZDataset(); String serieName = independentHeaders[0]; if (independentHeaders[0].indexOf(":") != -1) serieName = independentHeaders[0].substring(0, independentHeaders[0].indexOf(":")); dataset.addSeries((Comparable) serieName, data); return dataset; } } /** * Creates a chart. * * @param dataset the dataset. * * @return a chart. */ protected JFreeChart createChart(XYZDataset dataset) { // create the chart... JFreeChart chart = ChartFactory.createBubbleChart(chartTitle, // chart titl rangeLabel, // y axis label domainLabel, // x axis label dataset, // data PlotOrientation.VERTICAL, !legendPanelOn, // include legend true, // tooltips false // urls ); XYPlot plot = (XYPlot) chart.getPlot(); plot.setForegroundAlpha(0.65f); XYItemRenderer renderer = plot.getRenderer(); renderer.setSeriesPaint(0, Color.blue); renderer.setLegendItemLabelGenerator(new SOCRXYZSeriesLabelGenerator()); // increase the margins to account for the fact that the auto-range // doesn't take into account the bubble size... NumberAxis domainAxis = (NumberAxis) plot.getDomainAxis(); domainAxis.setLowerMargin(0.15); domainAxis.setUpperMargin(0.15); NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setLowerMargin(0.15); rangeAxis.setUpperMargin(0.15); return chart; } }