Gephi生成图代码

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012不说啥了，直接代码  ，对于图的生成，推荐使用组合算法，yifan hu 算法点生成图是百万级的

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023/*

024Copyright 2008-2010 Gephi

025Authors : Mathieu Bastian <[e-mail]>

026Website : http://www.gephi.org

027  

028This file is part of Gephi.

029  

030Gephi is free software: you can redistribute it and/or modify

031it under the terms of the GNU Affero General Public License as

032published by the Free Software Foundation, either version 3 of the

033License, or (at your option) any later version.

034  

035Gephi is distributed in the hope that it will be useful,

036but WITHOUT ANY WARRANTY; without even the implied warranty of

037MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

038GNU Affero General Public License for more details.

039  

040You should have received a copy of the GNU Affero General Public License

041along with Gephi.  If not, see <http://www.gnu.org/licenses/>.

042*/

043package org.gephi.toolkit.demos;

044  

045import java.io.File;

046import java.io.IOException;

047import java.util.concurrent.TimeUnit;

048  

049import org.gephi.graph.api.DirectedGraph;

050import org.gephi.graph.api.GraphController;

051import org.gephi.graph.api.GraphModel;

052import org.gephi.io.exporter.api.ExportController;

053import org.gephi.io.importer.api.Container;

054import org.gephi.io.importer.api.EdgeDefault;

055import org.gephi.io.importer.api.ImportController;

056import org.gephi.io.processor.plugin.DefaultProcessor;

057import org.gephi.layout.plugin.AutoLayout;

058import org.gephi.layout.plugin.force.StepDisplacement;

059import org.gephi.layout.plugin.force.yifanHu.YifanHuLayout;

060import org.gephi.layout.plugin.forceAtlas.ForceAtlasLayout;

061import org.gephi.project.api.ProjectController;

062import org.gephi.project.api.Workspace;

063import org.openide.util.Lookup;

064  

065/**

066 * This demo shows how to use the <code>AutoLayout</code> class to run layout

067 * programmatically.

068 * <p>

069 * You can set a layout duration, and an execution ratio for several layout. For

070 * instance you set 0.8 for a Yifan Hu algorithm and 0.2 for Label Adjust. If

071 * execution time is 100 seconds, the first algorithm run for 80 seconds and the

072 * second for 20 seconds. It also allows to change property values dynamically

073 * (at a certain ratio or interpolated if values are numerical).

074 *

075 * @author Mathieu Bastian

076 */

077public class WithAutoLayout {

078  

079    publicvoid script() {

080        //Init a project - and therefore a workspace

081        //��ʼ��һ����Ŀ - ��һ��������

082        ProjectController pc = Lookup.getDefault().lookup(ProjectController.class);

083        pc.newProject();

084        Workspace workspace = pc.getCurrentWorkspace();

085  

086        //Append container to graph structure

087        //��������ͼ�νṹ

088        ImportController importController = Lookup.getDefault().lookup(ImportController.class);

089        //Import file

090        //�����ļ�

091        Container container;

092        try{

093            File file =new File(getClass().getResource("/org/gephi/toolkit/demos/resources/lesmiserables3582908092477373.gml").toURI());

094            container = importController.importFile(file);

095            container.getLoader().setEdgeDefault(EdgeDefault.DIRECTED);  //Force DIRECTED

096            container.setAllowAutoNode(false); //Don't create missing nodes

097        }catch (Exception ex) {

098            ex.printStackTrace();

099            return;

100        }

101        importController.process(container,new DefaultProcessor(), workspace);

102  

103        //See if graph is well imported

104        //���ͼ���

105        GraphModel graphModel = Lookup.getDefault().lookup(GraphController.class).getModel();

106        DirectedGraph graph = graphModel.getDirectedGraph();

107        for(int i = 1;i <= graph.getNodeCount();i++) {

108//          System.out.println("Nodes: " + graph.getNode(i).getNodeData());

109        }

110        System.out.println("Edges: "+ graph.getEdgeCount());

111          

112        //Layout for 1 minute

113        //����1����

114          

115          

116        //^^

117        longtime = 0;

118        if(graph.getEdgeCount() > 20000) {

119            time = (long) (((double) graph.getEdgeCount() / 80));

120//          System.out.println("log:huangzheng:"+DateUtil.time2str((int)System.currentTimeMillis(), "yyyy-MM-dd HH:mm:ss")+"当前生成图像所花费的时间："+time);

121        }else

122        if(graph.getEdgeCount() > 12000) {

123            time = (long) (((double) graph.getEdgeCount() / 85));

124//          System.out.println("log:huangzheng:"+DateUtil.time2str((int)System.currentTimeMillis(), "yyyy-MM-dd HH:mm:ss")+"当前生成图像所花费的时间："+time);

125        }else if(graph.getEdgeCount() > 8000) {

126            time = (long) (((double) graph.getEdgeCount() / 90));

127//          System.out.println("log:huangzheng:"+DateUtil.time2str((int)System.currentTimeMillis(), "yyyy-MM-dd HH:mm:ss")+"当前生成图像所花费的时间："+time);

128        }else if(graph.getEdgeCount() > 5000) {

129            time = (long) (((double) graph.getEdgeCount() / 95));

130//          System.out.println("log:huangzheng:"+DateUtil.time2str((int)System.currentTimeMillis(), "yyyy-MM-dd HH:mm:ss")+"当前生成图像所花费的时间："+time);

131        }else if(graph.getEdgeCount() > 100) {

132            time = (long) (((double) graph.getEdgeCount() / 100));

133//          System.out.println("log:huangzheng:"+DateUtil.time2str((int)System.currentTimeMillis(), "yyyy-MM-dd HH:mm:ss")+"当前生成图像所花费的时间："+time);

134        }else {

135            time =1;

136        }

137        AutoLayout autoLayout =new AutoLayout(time, TimeUnit.SECONDS);

138        autoLayout.setGraphModel(graphModel);

139        YifanHuLayout secondLayout  =new YifanHuLayout(null,new StepDisplacement(1f));

140        ForceAtlasLayout firstLayout =new ForceAtlasLayout(null);

141        AutoLayout.DynamicProperty adjustBySizeProperty = AutoLayout.createDynamicProperty("forceAtlas.adjustSizes.name", Boolean.TRUE, 0.1f);//True after 10% of layout time

142        AutoLayout.DynamicProperty repulsionProperty = AutoLayout.createDynamicProperty("forceAtlas.repulsionStrength.name",new Double(500.), 0f);//500 for the complete period

143        autoLayout.addLayout(firstLayout ,0.5f, newAutoLayout.DynamicProperty[]{adjustBySizeProperty, repulsionProperty});

144        autoLayout.addLayout(secondLayout,0.5f);

145  

146         

147          

148          

149        autoLayout.execute();

150         //^^

151          

152          

153          

154        //Export

155        ExportController ec = Lookup.getDefault().lookup(ExportController.class);

156        try{

157            ec.exportFile(newFile("WebRoot/WEB-INF/weiboGexf/io_gexf2.gexf"));

158        }catch (IOException ex) {

159            ex.printStackTrace();

160        }

161    }

162      

163    publicstatic void main(String[] args) {

164        WithAutoLayout autoLayout =new WithAutoLayout();

165        autoLayout.script();

166//      System.out.println();

167    }

168}