Java tutorial
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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.demo; import java.awt.Color; import java.awt.GradientPaint; import java.beans.PropertyChangeListener; import org.jfree.chart.ChartFactory; import org.jfree.chart.ChartPanel; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.CategoryAxis; import org.jfree.chart.axis.CategoryLabelPositions; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.plot.CategoryPlot; import org.jfree.chart.plot.PlotOrientation; import org.jfree.chart.renderer.category.BarRenderer; import org.jfree.data.category.CategoryDataset; import org.jfree.data.category.DefaultCategoryDataset; import edu.ucla.stat.SOCR.chart.ChartGenerator_JTable; import edu.ucla.stat.SOCR.chart.SuperCategoryChart; import edu.ucla.stat.SOCR.chart.SuperCategoryChart_Bar; import edu.ucla.stat.SOCR.chart.gui.SOCRCategorySeriesLabelGenerator; /** * A simple demonstration application showing how to create a bar chart. */ public class BarChartDemo1 extends SuperCategoryChart_Bar implements PropertyChangeListener { /** * sample code showing how to create a chart using ChartGenerator_JTable class */ public void doTest() { JFreeChart chart; ChartGenerator_JTable chartMaker = new ChartGenerator_JTable(); resetChart(); showMessageDialog(chartTitle + " doTest get called!"); int no_series = dataTable.getRowCount() - 1; int no_category = dataTable.getColumnCount() - 2; int[][] pairs = new int[no_category][2]; for (int i = 0; i < no_category; i++) { pairs[i][0] = i + 1; //column i store category i pairs[i][1] = 0; //column 0 stores series name } chart = chartMaker.getCategoryChart("Bar", chartTitle, "Category", "value", dataTable, no_category, pairs, ""); chartPanel = new ChartPanel(chart, false); setChart(); } /** * Returns a sample dataset. * * @return The dataset. */ protected CategoryDataset createDataset(boolean isDemo) { if (isDemo) { // row keys... String series1 = "First"; String series2 = "Second"; String series3 = "Third"; // column keys... String category1 = "Category 1"; String category2 = "Category 2"; String category3 = "Category 3"; String category4 = "Category 4"; String category5 = "Category 5"; // create the dataset... DefaultCategoryDataset dataset = new DefaultCategoryDataset(); dataset.addValue(1.0, series1, category1); dataset.addValue(4.0, series1, category2); dataset.addValue(3.0, series1, category3); dataset.addValue(5.0, series1, category4); dataset.addValue(5.0, series1, category5); dataset.addValue(5.0, series2, category1); dataset.addValue(7.0, series2, category2); dataset.addValue(6.0, series2, category3); dataset.addValue(8.0, series2, category4); dataset.addValue(4.0, series2, category5); dataset.addValue(4.0, series3, category1); dataset.addValue(3.0, series3, category2); dataset.addValue(2.0, series3, category3); dataset.addValue(3.0, series3, category4); dataset.addValue(6.0, series3, category5); return dataset; } else { return super.createDataset(false); } } /** * Creates a sample chart. * * @param dataset the dataset. * * @return The chart. */ protected JFreeChart createChart(CategoryDataset dataset) { domainLabel = "Category"; rangeLabel = "Value"; // create the chart... JFreeChart chart = ChartFactory.createBarChart(chartTitle, // chart title domainLabel, // domain axis label rangeLabel, // range axis label dataset, // data PlotOrientation.VERTICAL, // orientation !legendPanelOn, // include legend true, // tooltips? false // URLs? ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... // set the background color for the chart... chart.setBackgroundPaint(Color.white); // get a reference to the plot for further customisation... CategoryPlot plot = chart.getCategoryPlot(); plot.setBackgroundPaint(Color.lightGray); plot.setDomainGridlinePaint(Color.white); plot.setDomainGridlinesVisible(true); plot.setRangeGridlinePaint(Color.white); // set the range axis to display integers only... NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); // disable bar outlines... BarRenderer renderer = (BarRenderer) plot.getRenderer(); renderer.setDrawBarOutline(false); // set up gradient paints for series... GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64)); GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0)); GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0)); renderer.setSeriesPaint(0, gp0); renderer.setSeriesPaint(1, gp1); renderer.setSeriesPaint(2, gp2); renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator()); CategoryAxis domainAxis = plot.getDomainAxis(); domainAxis.setCategoryLabelPositions(CategoryLabelPositions.createUpRotationLabelPositions(Math.PI / 6.0)); // OPTIONAL CUSTOMISATION COMPLETED. /*Summary s = new Summary(dataset); LegendTitle legend = new LegendTitle(chart.getPlot()); BlockContainer wrapper = new BlockContainer(new BorderArrangement()); wrapper.setBorder(new BlockBorder(1.0, 1.0, 1.0, 1.0)); LegendItemSource[] legendSource= legend.getSources(); LegendItemCollection old_legendItems = legendSource[0].getLegendItems(); LegendItemCollection new_legendItems = new LegendItemCollection(); int legendCount = old_legendItems.getItemCount(); for (int i=0; i<legendCount; i++){ LegendItem old_legendItem = old_legendItems.get(i); String legendLabel = old_legendItem.getLabel(); System.out.println("legendLabel="+old_legendLabel); LegendItem new_legendItem = new LegendItem( old_legendItem.getLabel()+s.getSummary(i), old_legendItem.getDescription(), old_legendItem.getToolTipText(), old_legendItem.getURLText(), old_legendItem.isShapeVisible(), old_legendItem.getShape(), old_legendItem.isShapeFilled(), old_legendItem.getFillPaint(), old_legendItem.isShapeOutlineVisible(), old_legendItem.getOutlinePaint(), old_legendItem.getOutlineStroke(), old_legendItem.isLineVisible(), old_legendItem.getLine(), old_legendItem.getLineStroke(), old_legendItem.getlinePaint() ); new_legendItems.add(new_legendItem); } // *** this is important - you need to add the item container to // the wrapper, otherwise the legend items won't be displayed when // the wrapper is drawn... *** BlockContainer items = legend.getItemContainer(); items.setPadding(2, 10, 5, 2); wrapper.add(items); legend.setWrapper(wrapper); legend.setPosition(RectangleEdge.BOTTOM); legend.setHorizontalAlignment(HorizontalAlignment.LEFT); chart.addSubtitle(legend);*/ setCategorySummary(dataset); return chart; } protected JFreeChart createLegend(CategoryDataset dataset) { domainLabel = "Category"; rangeLabel = "Value"; // JFreeChart chart = ChartFactory.createAreaChart( JFreeChart chart = ChartFactory.createBarChart(chartTitle, // chart title domainLabel, // domain axis label rangeLabel, // range axis label dataset, // data PlotOrientation.VERTICAL, // orientation true, // include legend true, // tooltips false // urls ); // NOW DO SOME OPTIONAL CUSTOMISATION OF THE CHART... chart.setBackgroundPaint(Color.white); CategoryPlot plot = chart.getCategoryPlot(); BarRenderer renderer = (BarRenderer) plot.getRenderer(); // set up gradient paints for series... GradientPaint gp0 = new GradientPaint(0.0f, 0.0f, Color.blue, 0.0f, 0.0f, new Color(0, 0, 64)); GradientPaint gp1 = new GradientPaint(0.0f, 0.0f, Color.green, 0.0f, 0.0f, new Color(0, 64, 0)); GradientPaint gp2 = new GradientPaint(0.0f, 0.0f, Color.red, 0.0f, 0.0f, new Color(64, 0, 0)); renderer.setSeriesPaint(0, gp0); renderer.setSeriesPaint(1, gp1); renderer.setSeriesPaint(2, gp2); // renderer.setDrawOutlines(true); // renderer.setUseFillPaint(true); // renderer.setFillPaint(Color.white); renderer.setLegendItemLabelGenerator(new SOCRCategorySeriesLabelGenerator()); return chart; } }