Java tutorial
/* Copyright 2008-2011 Gephi Authors : Sbastien Heymann <sebastien.heymann@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 org.gephi.statistics.plugin.dynamic; import java.text.DecimalFormat; import java.text.NumberFormat; import java.util.HashMap; import java.util.Map; import org.gephi.data.attributes.api.AttributeColumn; import org.gephi.data.attributes.api.AttributeModel; import org.gephi.data.attributes.api.AttributeOrigin; import org.gephi.data.attributes.api.AttributeTable; import org.gephi.data.attributes.api.AttributeType; import org.gephi.data.attributes.type.DynamicInteger; import org.gephi.data.attributes.type.Interval; import org.gephi.graph.api.GraphModel; import org.gephi.graph.api.GraphView; import org.gephi.graph.api.HierarchicalGraph; import org.gephi.statistics.plugin.ChartUtils; import org.gephi.statistics.spi.DynamicStatistics; import org.jfree.chart.ChartFactory; import org.jfree.chart.JFreeChart; import org.jfree.chart.plot.PlotOrientation; import org.jfree.data.xy.XYSeries; import org.jfree.data.xy.XYSeriesCollection; import org.openide.util.NbBundle; /** * * @author Sbastien Heymann */ public class DynamicNbEdges implements DynamicStatistics { public static final String NB_EDGES = "dynamic nbedges"; //Data private GraphModel graphModel; private double window; private double tick; private Interval bounds; //Average private AttributeColumn nbEdgesCol; private DynamicInteger counts; public void execute(GraphModel graphModel, AttributeModel attributeModel) { this.graphModel = graphModel; //Column AttributeTable graphTable = attributeModel.getGraphTable(); nbEdgesCol = graphTable.getColumn(NB_EDGES); if (nbEdgesCol == null) { nbEdgesCol = graphTable.addColumn(NB_EDGES, NbBundle.getMessage(DynamicNbEdges.class, "DynamicNbNodes.graphcolumn.NbEdges"), AttributeType.DYNAMIC_INT, AttributeOrigin.COMPUTED, new DynamicInteger()); } } public String getReport() { //Transform to Map Map<Double, Integer> map = new HashMap<Double, Integer>(); for (Interval<Integer> interval : counts.getIntervals()) { map.put(interval.getLow(), interval.getValue()); } //Time series XYSeries dSeries = ChartUtils.createXYSeries(map, "Nb Edges Time Series"); XYSeriesCollection dataset = new XYSeriesCollection(); dataset.addSeries(dSeries); JFreeChart chart = ChartFactory.createXYLineChart("# Edges Time Series", "Time", "# Edges", dataset, PlotOrientation.VERTICAL, true, false, false); chart.removeLegend(); ChartUtils.decorateChart(chart); ChartUtils.scaleChart(chart, dSeries, false); String imageFile = ChartUtils.renderChart(chart, "nb-edges-ts.png"); NumberFormat f = new DecimalFormat("#0.000"); String report = "<HTML> <BODY> <h1>Dynamic Number of Edges Report </h1> " + "<hr>" + "<br> Bounds: from " + f.format(bounds.getLow()) + " to " + f.format(bounds.getHigh()) + "<br> Window: " + window + "<br> Tick: " + tick + "<br><br><h2> Number of edges over time: </h2>" + "<br /><br />" + imageFile; /*for (Interval<Integer> count : counts) { report += count.toString(dynamicModel.getTimeFormat().equals(DynamicModel.TimeFormat.DOUBLE)) + "<br />"; }*/ report += "<br /><br /></BODY></HTML>"; return report; } public void loop(GraphView window, Interval interval) { HierarchicalGraph graph = graphModel.getHierarchicalGraph(window); int count = graph.getEdgeCount(); counts = new DynamicInteger(counts, new Interval<Integer>(interval.getLow(), interval.getHigh(), false, true, count)); } public void end() { graphModel.getGraphVisible().getAttributes().setValue(nbEdgesCol.getIndex(), counts); } public void setBounds(Interval bounds) { this.bounds = bounds; } public void setWindow(double window) { this.window = window; } public void setTick(double tick) { this.tick = tick; } public double getWindow() { return window; } public double getTick() { return tick; } public Interval getBounds() { return bounds; } }