Java tutorial
/* *********************************************************************** * * project: org.matsim.* * UtilitiesBoxPlot.java * * * *********************************************************************** * * * * copyright : (C) 2012 by the members listed in the COPYING, * * LICENSE and WARRANTY file. * * email : info at matsim dot org * * * * *********************************************************************** * * * * 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. * * See also COPYING, LICENSE and WARRANTY file * * * * *********************************************************************** */ package playground.anhorni.surprice.analysis; import java.awt.Color; import java.awt.Font; import java.io.File; import java.io.IOException; import java.util.ArrayList; import org.jfree.chart.ChartUtilities; 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.renderer.category.BoxAndWhiskerRenderer; import org.jfree.data.statistics.DefaultBoxAndWhiskerCategoryDataset; public class SupriceBoxPlot { private JFreeChart chart_; private String chartTitle; private DefaultBoxAndWhiskerCategoryDataset dataset; private String xAxisName = ""; private String yAxisName = ""; private double yrangeLower = 0.0; private double yrangeUpper = 0.0; public SupriceBoxPlot(final String chartTitle, String xAxisName, String yAxisName, double yrangeLower, double yrangeUpper) { dataset = new DefaultBoxAndWhiskerCategoryDataset(); this.chartTitle = chartTitle; this.xAxisName = xAxisName; this.yAxisName = yAxisName; this.yrangeLower = yrangeLower; this.yrangeUpper = yrangeUpper; } public void addValuesPerCategory(ArrayList<Double> values, String category, String name) { dataset.add(values, name, category); } public JFreeChart createChart() { String title = chartTitle; final CategoryAxis xAxis = new CategoryAxis(this.xAxisName); xAxis.setTickLabelFont(new Font("SansSerif", Font.PLAIN, 10)); xAxis.setCategoryLabelPositions(CategoryLabelPositions.UP_45); final NumberAxis yAxis = new NumberAxis(this.yAxisName); yAxis.setAutoRangeIncludesZero(true); if (Math.abs(yrangeLower - yrangeUpper) > Double.MIN_VALUE) { yAxis.setRange(yrangeLower, yrangeUpper); } final BoxAndWhiskerRenderer renderer = new BoxAndWhiskerRenderer(); renderer.setFillBox(false); renderer.setSeriesPaint(0, Color.blue); CategoryPlot plot = new CategoryPlot(dataset, xAxis, yAxis, renderer); this.chart_ = new JFreeChart(title, new Font("SansSerif", Font.BOLD, 14), plot, false); return this.chart_; } public void saveAsPng(final String filename, final int width, final int height) { try { ChartUtilities.saveChartAsPNG(new File(filename), createChart(), width, height, null, true, 9); } catch (IOException e) { e.printStackTrace(); } } }