Question

这是java文件的完整源代码。

package gephifyer;
import java.awt.Color;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;

import org.gephi.data.attributes.api.AttributeColumn;
import org.gephi.data.attributes.api.AttributeController;
import org.gephi.data.attributes.api.AttributeModel;
import org.gephi.graph.api.DirectedGraph;
import org.gephi.graph.api.GraphController;
import org.gephi.graph.api.GraphModel;
import org.gephi.io.exporter.api.ExportController;
import org.gephi.io.importer.api.Container;
import org.gephi.io.importer.api.EdgeDefault;
import org.gephi.io.importer.api.ImportController;
import org.gephi.io.importer.spi.FileImporter;
import org.gephi.io.processor.plugin.DefaultProcessor;
import org.gephi.partition.api.Partition;
import org.gephi.partition.api.PartitionController;
import org.gephi.partition.plugin.NodeColorTransformer;
import org.gephi.preview.api.PreviewController;
import org.gephi.preview.api.PreviewModel;
import org.gephi.preview.api.PreviewProperty;
import org.gephi.preview.types.DependantOriginalColor;
import org.gephi.project.api.ProjectController;
import org.gephi.project.api.Workspace;
import org.gephi.ranking.api.Ranking;
import org.gephi.ranking.api.RankingController;
import org.gephi.ranking.plugin.transformer.AbstractSizeTransformer;
import org.gephi.statistics.plugin.Modularity;
import org.openide.util.Lookup;
import org.gephi.layout.plugin.force.StepDisplacement;
import org.gephi.layout.plugin.force.yifanHu.YifanHu;
import org.gephi.layout.plugin.force.yifanHu.YifanHuLayout;
import org.gephi.layout.plugin.openord.*;

public class Gephifyer {

    public void doStuff(String[] args)
    {
        String filename = new String();
        try{
            filename = args[0];
        } catch (ArrayIndexOutOfBoundsException ex) {
            System.out.println("Supply the subreddit name as the argument.");
            System.exit(0);
        }

        ProjectController pc = Lookup.getDefault().lookup(ProjectController.class);
        pc.newProject();
        Workspace workspace = pc.getCurrentWorkspace();

        ImportController importController = Lookup.getDefault().lookup(ImportController.class);
        Container container;
        try{
            File file = new File(filename + ".csv");
            //File file = new File(getClass().getResource("askscience.csv").toURI());
            container = importController.importFile(file);
            container.getLoader().setEdgeDefault(EdgeDefault.DIRECTED);
            container.setAllowAutoNode(false); // don't create missing nodes
        } catch (Exception ex) {
            ex.printStackTrace();
            return;
        }

        // Append imported data to graph api
        importController.process(container, new DefaultProcessor(), workspace);

        GraphModel graphModel = Lookup.getDefault().lookup(GraphController.class).getModel();
        DirectedGraph directedGraph = graphModel.getDirectedGraph();
        // Now let's manipulate the graph api, which stores / serves graphs
        System.out.println("Nodes: " + directedGraph.getNodeCount() + "\nEdges: " + directedGraph.getEdgeCount());

        //Run OpenOrd.
        //OpenOrdLayout layout = new OpenOrdLayout(null);
        YifanHuLayout layout = new YifanHuLayout(null, new StepDisplacement(0.95f));
        layout.setGraphModel(graphModel);
        layout.resetPropertiesValues();
        layout.initAlgo();
        layout.goAlgo();
        while (layout.canAlgo()) // This is only possible because OpenOrd has a finite number of iterations.
        {
            layout.goAlgo();
        }

        AttributeModel attributemodel = Lookup.getDefault().lookup(AttributeController.class).getModel();

        // Get modularity for coloring
        Modularity modularity = new Modularity();
        modularity.setUseWeight(true);
        modularity.setRandom(true);
        modularity.setResolution(1.0);
        modularity.execute(graphModel, attributemodel);
        // Partition with modularity
        AttributeColumn modcol = attributemodel.getNodeTable().getColumn(Modularity.MODULARITY_CLASS);
        PartitionController partitionController = Lookup.getDefault().lookup(PartitionController.class);
        Partition p = partitionController.buildPartition(modcol, directedGraph);
        NodeColorTransformer nodeColorTransformer = new NodeColorTransformer();
        nodeColorTransformer.randomizeColors(p);
        partitionController.transform(p, nodeColorTransformer);

        // Ranking
        RankingController rankingController = Lookup.getDefault().lookup(RankingController.class);
        Ranking degreeRanking = rankingController.getModel().getRanking(Ranking.NODE_ELEMENT, Ranking.INDEGREE_RANKING);
        AbstractSizeTransformer sizeTransformer = (AbstractSizeTransformer) rankingController.getModel().getTransformer(Ranking.NODE_ELEMENT, org.gephi.ranking.api.Transformer.RENDERABLE_SIZE);
        sizeTransformer.setMinSize(5.0f);
        sizeTransformer.setMaxSize(40.0f);
        rankingController.transform(degreeRanking,sizeTransformer);

        // Finally, the preview model
        PreviewController previewController = Lookup.getDefault().lookup(PreviewController.class);
        PreviewModel previewModel = previewController.getModel();
        previewModel.getProperties().putValue(PreviewProperty.SHOW_NODE_LABELS, Boolean.TRUE);
        previewModel.getProperties().putValue(PreviewProperty.NODE_LABEL_COLOR, new DependantOriginalColor(Color.BLACK));
        previewModel.getProperties().putValue(PreviewProperty.NODE_LABEL_FONT, previewModel.getProperties().getFontValue(PreviewProperty.NODE_LABEL_FONT).deriveFont(8));
        previewModel.getProperties().putValue(PreviewProperty.EDGE_CURVED, Boolean.FALSE);
        previewModel.getProperties().putValue(PreviewProperty.EDGE_OPACITY, 50);
        previewModel.getProperties().putValue(PreviewProperty.EDGE_RADIUS, 10f);
        previewModel.getProperties().putValue(PreviewProperty.BACKGROUND_COLOR, Color.TRANSLUCENT);

        previewController.refreshPreview();

        System.out.println("starting export");
        ExportController ec = Lookup.getDefault().lookup(ExportController.class);
        try{
            ec.exportFile(new File(filename + ".svg"));
        }
        catch (IOException ex){
            ex.printStackTrace();
            return;
        }
        System.out.println("Done.");
    }

    public static void main(String[] args)
    {
        Gephifyer g = new Gephifyer();
        g.doStuff(args);
    }
}

从本质上讲，各种演示代码拼凑在一起，做我想做的事。

我希望图表看起来像this svg file，但结果是this svg file。也就是说，问题是上面的代码产生了一个图形，其中箭头没有完全连接到节点，使它看起来有点乱。我不能告诉我的生活代码在哪里发生，虽然我猜它会出现在预览模型中。

Answer 1

previewModel.getProperties().putValue(PreviewProperty.EDGE_RADIUS, 10f);设置箭头与节点的距离。

图表未按预期呈现

1 个答案: