Java tutorial
/* Copyright 2011 Gephi Authors : Sebastien Heymann <seb@gephi.org> Website : http://www.gephi.org This file is part of Gephi. DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. Copyright 2011 Gephi Consortium. All rights reserved. The contents of this file are subject to the terms of either the GNU General Public License Version 3 only ("GPL") or the Common Development and Distribution License("CDDL") (collectively, the "License"). You may not use this file except in compliance with the License. You can obtain a copy of the License at http://gephi.org/about/legal/license-notice/ or /cddl-1.0.txt and /gpl-3.0.txt. See the License for the specific language governing permissions and limitations under the License. When distributing the software, include this License Header Notice in each file and include the License files at /cddl-1.0.txt and /gpl-3.0.txt. 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Contributor(s): Portions Copyrighted 2011 Gephi Consortium. */ package umberto.WeightedClusterCoefficient; import java.io.File; import java.io.IOException; import java.util.Iterator; import java.util.Locale; import java.util.Map; import org.gephi.utils.TempDirUtils; import org.gephi.utils.TempDirUtils.TempDir; import org.jfree.chart.ChartRenderingInfo; import org.jfree.chart.ChartUtilities; import org.jfree.chart.JFreeChart; import org.jfree.chart.axis.LogAxis; import org.jfree.chart.axis.LogarithmicAxis; import org.jfree.chart.axis.NumberAxis; import org.jfree.chart.axis.ValueAxis; import org.jfree.chart.entity.StandardEntityCollection; import org.jfree.chart.plot.XYPlot; import org.jfree.chart.renderer.xy.XYLineAndShapeRenderer; import org.jfree.data.xy.XYSeries; /** * * @author sebastien */ public abstract class ChartUtils { public static void decorateChart(JFreeChart chart) { XYPlot plot = (XYPlot) chart.getPlot(); XYLineAndShapeRenderer renderer = new XYLineAndShapeRenderer(); renderer.setSeriesLinesVisible(0, false); renderer.setSeriesShapesVisible(0, true); renderer.setSeriesShape(0, new java.awt.geom.Ellipse2D.Double(0, 0, 3, 3)); plot.setBackgroundPaint(java.awt.Color.WHITE); plot.setDomainGridlinePaint(java.awt.Color.GRAY); plot.setRangeGridlinePaint(java.awt.Color.GRAY); plot.setRenderer(renderer); } public static void scaleChart(JFreeChart chart, XYSeries dSeries, boolean normalized) { XYPlot plot = (XYPlot) chart.getPlot(); ValueAxis domainAxis = plot.getDomainAxis(); domainAxis.setLowerMargin(1.0); domainAxis.setUpperMargin(1.0); domainAxis.setStandardTickUnits(NumberAxis.createIntegerTickUnits()); if (normalized) { domainAxis.setRange(-0.05, 1.05); } else { domainAxis.setRange(dSeries.getMinX() - 1, dSeries.getMaxX() + 1); } NumberAxis rangeAxis = (NumberAxis) plot.getRangeAxis(); rangeAxis.setRange(-0.1 * Math.sqrt(dSeries.getMaxY()), dSeries.getMaxY() + 0.1 * Math.sqrt(dSeries.getMaxY())); } public static void scaleLogChart(JFreeChart chart, XYSeries dSeries, boolean normalized) { XYPlot plot = (XYPlot) chart.getPlot(); final LogAxis logyAxis = new LogAxis(plot.getRangeAxis().getLabel()); final LogAxis logxAxis = new LogAxis(plot.getDomainAxis().getLabel()); //Set y axis format. // DecimalFormat formaty = (DecimalFormat) DecimalFormat.getNumberInstance(Locale.ENGLISH); // formaty.applyPattern("#0.0000"); //set y axis logyAxis.setBase(10); // logyAxis.setNumberFormatOverride(formaty); logyAxis.setStandardTickUnits(LogAxis.createLogTickUnits(Locale.ENGLISH)); // logyAxis.setRange(0.01, 1.0); logyAxis.setAutoRange(true); plot.setRangeAxis(logyAxis); //set x axis logxAxis.setBase(10); logxAxis.setStandardTickUnits(LogAxis.createLogTickUnits(Locale.ENGLISH)); logxAxis.setAutoRange(true); //logxAxis.setRange(0.00001, 1.0);//Se la voglio zoommare plot.setDomainAxis(logxAxis); } public static void scaleLogarithmicChart(JFreeChart chart, XYSeries dSeries, boolean normalized) { XYPlot plot = (XYPlot) chart.getPlot(); NumberAxis logxaxis = new LogarithmicAxis(plot.getDomainAxis().getLabel()); NumberAxis logyaxis = new LogarithmicAxis(plot.getRangeAxis().getLabel()); plot.setRangeAxis(logyaxis); plot.setDomainAxis(logxaxis); } public static String renderChart(JFreeChart chart, String fileName) { String imageFile = ""; try { final ChartRenderingInfo info = new ChartRenderingInfo(new StandardEntityCollection()); TempDir tempDir = TempDirUtils.createTempDir(); File file1 = tempDir.createFile(fileName); imageFile = "<IMG SRC=\"file:" + file1.getAbsolutePath() + "\" " + "WIDTH=\"600\" HEIGHT=\"400\" BORDER=\"0\" USEMAP=\"#chart\"></IMG>"; ChartUtilities.saveChartAsPNG(file1, chart, 600, 400, info); } catch (IOException e) { System.out.println(e.toString()); } return imageFile; } public static XYSeries createXYSeries(Map data, String name) { XYSeries series = new XYSeries(name); for (Iterator it = data.entrySet().iterator(); it.hasNext();) { Map.Entry d = (Map.Entry) it.next(); Number x = (Number) d.getKey(); Number y = (Number) d.getValue(); series.add(x, y); } return series; } }