prefuse实例+注释+调色板装饰初始化节点类别颜色（原创）

自己摸索了几天，搞了这么点注释，大家帮忙看看有神马不对的，请不吝赐教

package prefuse;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.event.MouseEvent;
import java.util.Iterator;

import javax.swing.BorderFactory;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.SwingConstants;

import prefuse.Constants;
import prefuse.Display;
import prefuse.Visualization;
import prefuse.action.ActionList;
import prefuse.action.GroupAction;
import prefuse.action.ItemAction;
import prefuse.action.RepaintAction;
import prefuse.action.animate.ColorAnimator;
import prefuse.action.animate.PolarLocationAnimator;
import prefuse.action.animate.QualityControlAnimator;
import prefuse.action.animate.VisibilityAnimator;
import prefuse.action.assignment.ColorAction;
import prefuse.action.assignment.DataColorAction;
import prefuse.action.assignment.FontAction;
import prefuse.action.layout.CollapsedSubtreeLayout;
import prefuse.action.layout.graph.RadialTreeLayout;
import prefuse.activity.SlowInSlowOutPacer;
import prefuse.controls.ControlAdapter;
import prefuse.controls.DragControl;
import prefuse.controls.FocusControl;
import prefuse.controls.HoverActionControl;
import prefuse.controls.PanControl;
import prefuse.controls.WheelZoomControl;
import prefuse.controls.ZoomControl;
import prefuse.controls.ZoomToFitControl;
import prefuse.controls.ZoomingPanControl;
import prefuse.data.Graph;
import prefuse.data.Node;
import prefuse.data.Table;
import prefuse.data.Tuple;
import prefuse.data.event.TupleSetListener;
import prefuse.data.io.GraphMLReader;
import prefuse.data.query.SearchQueryBinding;
import prefuse.data.search.PrefixSearchTupleSet;
import prefuse.data.search.SearchTupleSet;
import prefuse.data.tuple.DefaultTupleSet;
import prefuse.data.tuple.TupleSet;
import prefuse.render.AbstractShapeRenderer;
import prefuse.render.DefaultRendererFactory;
import prefuse.render.EdgeRenderer;
import prefuse.render.LabelRenderer;
import prefuse.util.ColorLib;
import prefuse.util.FontLib;
import prefuse.util.ui.JFastLabel;
import prefuse.util.ui.JSearchPanel;
import prefuse.util.ui.UILib;
import prefuse.visual.NodeItem;
import prefuse.visual.VisualItem;
import prefuse.visual.expression.InGroupPredicate;
import prefuse.visual.sort.TreeDepthItemSorter;

/**
 * Demonstration of a node-link tree viewer
 * @author lee   http://faithlee.iteye.com
 * @version 1.0
 */
public class CopyOfTest extends Display {

	public static final String DATA_FILE = "project.xml";

	private static final String tree = "tree";
	private static final String treeNodes = "tree.nodes";
	private static final String treeEdges = "tree.edges";
	private static final String linear = "linear";

	private LabelRenderer m_nodeRenderer;
	private EdgeRenderer m_edgeRenderer;

	private String m_label = "label";
	private String m_sex = "sex";

	public CopyOfTest(Graph g, String label, String sex) {
		super(new Visualization());
		m_label = label;

		m_sex = sex;
		// -- set up visualization --
		m_vis.add(tree, g);
		m_vis.setInteractive(treeEdges, null, false);

		// --  设置渲染器 --
		m_nodeRenderer = new LabelRenderer(m_label); // 使用label来创建带有标签的节点
		m_nodeRenderer.setRenderType(AbstractShapeRenderer.RENDER_TYPE_FILL);
		m_nodeRenderer.setHorizontalAlignment(Constants.CENTER);
		m_nodeRenderer.setRoundedCorner(8, 8);// 标签为平滑的边缘
		m_edgeRenderer = new EdgeRenderer();

		DefaultRendererFactory rf = new DefaultRendererFactory(m_nodeRenderer);// 决定图形怎么画的主要工具
		rf.add(new InGroupPredicate(treeEdges), m_edgeRenderer);
		m_vis.setRendererFactory(rf);

		// -- 设置节点颜色，字体大小、颜色 --
		ItemAction edgeColor = new ColorAction(treeEdges,
				VisualItem.STROKECOLOR, ColorLib.rgb(200, 200, 200));

		FontAction fonts = new FontAction(treeNodes, FontLib.getFont("宋体&新宋体",
				10));
		fonts.add("ingroup('_focus_')", FontLib.getFont("宋体&新宋体", 11));

		// 创建调色板,颜色对应配置文件中相应属性的字母顺序
		int[] palette = new int[] { ColorLib.rgb(128, 128, 255),
				ColorLib.rgb(255, 128, 192), ColorLib.rgb(255, 140, 85) };
		// 文件不同类别的数据值，根据调色板使用不同颜色
		DataColorAction fill = new DataColorAction("tree.nodes", "gender",
				Constants.NOMINAL, VisualItem.FILLCOLOR, palette);
		// use black for node text
		fill.add("_hover", ColorLib.gray(220, 230));
		fill.add("ingroup('_search_')", ColorLib.rgb(255, 190, 190));
		fill.add("ingroup('_focus_')", ColorLib.rgb(198, 229, 229));

		ColorAction text = new ColorAction("tree.nodes", VisualItem.TEXTCOLOR,
				ColorLib.gray(0));

		text.add("_hover", ColorLib.rgb(255, 0, 0));
		// use light grey for edges
		ColorAction edges = new ColorAction("tree.nodes",
				VisualItem.STROKECOLOR, ColorLib.gray(200));

		// create an action list containing all color assignments
		ActionList color = new ActionList();
		color.add(fill);
		color.add(text);
		color.add(edges);
		m_vis.putAction("color", color);

		// recolor
		ActionList recolor = new ActionList();
		recolor.add(fill);
		m_vis.putAction("recolor", recolor);

		// repaint
		ActionList repaint = new ActionList();
		repaint.add(recolor);
		repaint.add(new RepaintAction());
		m_vis.putAction("repaint", repaint);

		// animate paint change
		ActionList animatePaint = new ActionList(400);
		animatePaint.add(new ColorAnimator(treeNodes));
		animatePaint.add(new RepaintAction());

		m_vis.putAction("animatePaint", animatePaint);

		// create the tree layout action
		RadialTreeLayout treeLayout = new RadialTreeLayout(tree);

		// treeLayout.setLayoutRoot() // 可以设置初始中心点
		// treeLayout.setAngularBounds(-Math.PI/2, Math.PI);
		m_vis.putAction("treeLayout", treeLayout);
		CollapsedSubtreeLayout subLayout = new CollapsedSubtreeLayout(tree);

		m_vis.putAction("subLayout", subLayout);
		// create the filtering and layout
		ActionList filter = new ActionList();

		filter.add(new TreeRootAction(tree));
		filter.add(fonts);
		filter.add(treeLayout);
		filter.add(subLayout);
		filter.add(fill);
		filter.add(edgeColor);
		m_vis.putAction("filter", filter);

		// animated transition 动画过渡
		ActionList animate = new ActionList(1250);// 活动时间
		animate.setPacingFunction(new SlowInSlowOutPacer());
		animate.add(new QualityControlAnimator());
		animate.add(new VisibilityAnimator(tree));
		animate.add(new PolarLocationAnimator(treeNodes, linear));
		animate.add(new ColorAnimator(treeNodes));
		animate.add(new RepaintAction());
		m_vis.putAction("animate", animate);
		m_vis.alwaysRunAfter("filter", "animate");

		// ------------------------------------------------
		// initialize the display
		setSize(700, 600);// 初始化jframe大小
		setItemSorter(new TreeDepthItemSorter());

		// 添加对一系列鼠标事件的监听
		addControlListener(new WheelZoomControl());// 鼠标滚轮放大缩小效果
		// addControlListener(new NeighborHighlightControl()); //相邻节点加亮监听
		addControlListener(new DragControl());
		addControlListener(new ZoomToFitControl());// 右键单击使画面最适合状态
		// addControlListener(new ZoomControl());//右键移动改变图像大小
		addControlListener(new PanControl());
		addControlListener(new FocusControl(1, "filter"));// 设置鼠标点击次数改变节点中心
		addControlListener(new HoverActionControl("repaint"));

		// ------------------------------------------------

		// filter graph and perform layout
		m_vis.run("filter");

		// maintain a set of items that should be interpolated linearly
		// this isn't absolutely necessary, but makes the animations nicer
		// the PolarLocationAnimator should read this set and act accordingly
		m_vis.addFocusGroup(linear, new DefaultTupleSet());
		m_vis.getGroup(Visualization.FOCUS_ITEMS).addTupleSetListener(
				new TupleSetListener() {
					public void tupleSetChanged(TupleSet t, Tuple[] add,
							Tuple[] rem) {
						TupleSet linearInterp = m_vis.getGroup(linear);
						if (add.length < 1)
							return;
						linearInterp.clear();
						for (Node n = (Node) add[0]; n != null; n = n
								.getParent())
							linearInterp.addTuple(n);
					}
				});

		SearchTupleSet search = new PrefixSearchTupleSet();
		m_vis.addFocusGroup(Visualization.SEARCH_ITEMS, search);
		search.addTupleSetListener(new TupleSetListener() {
			public void tupleSetChanged(TupleSet t, Tuple[] add, Tuple[] rem) {
				m_vis.cancel("animatePaint");
				m_vis.run("recolor");
				m_vis.run("animatePaint");
			}
		});
	}

	// ------------------------------------------------------------------------

	public static void main(String argv[]) {
		String infile = DATA_FILE;
		String label = "name";
		String sex = "gender";

		if (argv.length > 1) {
			infile = argv[0];
			label = argv[1];
			sex = argv[2];
		}
		UILib.setPlatformLookAndFeel();// 适合当前系统平台。

		JFrame frame = new JFrame("关系图");

		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		// frame.setContentPane(demo(infile, label));
		// JPanel jpanel = demo(infile,label);
		frame.getContentPane().add(demo(infile, label, sex),
				BorderLayout.CENTER);
		frame.pack();
		frame.setVisible(true);
		frame.setLocationRelativeTo(null); // 当参数为null时窗体处于屏幕正中
	}

	public static JPanel demo() {
		return demo(DATA_FILE, "name", "gender");
	}

	public static JPanel demo(String datafile, final String label,
			final String sex) {
		Graph g = null;
		try {
			g = new GraphMLReader().readGraph(datafile);
		} catch (Exception e) {
			e.printStackTrace();
			System.exit(1);
		}
		return demo(g, label, sex);
	}

	public static JPanel demo(Graph g, final String label, final String sex) {

		// create a new radial tree view
		final CopyOfTest gview = new CopyOfTest(g, label, sex);

		Visualization vis = gview.getVisualization();
		// create a search panel for the tree map
		SearchQueryBinding sq = new SearchQueryBinding((Table) vis
				.getGroup(treeNodes), label, (SearchTupleSet) vis
				.getGroup(Visualization.SEARCH_ITEMS));
		JSearchPanel search = sq.createSearchPanel();
		search.setShowResultCount(true);
		search.setBorder(BorderFactory.createEmptyBorder(5, 5, 4, 0));
		search.setFont(FontLib.getFont("宋体&新宋体", Font.PLAIN, 12));

		final JFastLabel title = new JFastLabel("");
		title.setPreferredSize(new Dimension(25, 20));
		title.setVerticalAlignment(SwingConstants.BOTTOM);
		title.setBorder(BorderFactory.createEmptyBorder(3, 0, 0, 0));
		title.setFont(FontLib.getFont("宋体&新宋体", Font.PLAIN, 12));

		gview.addControlListener(new ControlAdapter() {
			public void itemEntered(VisualItem item, MouseEvent e) {
				if (item.canGetString(label))
					title.setText(item.getString(label));
			}

			public void itemExited(VisualItem item, MouseEvent e) {
				title.setText(null);
			}
		});

		Box box = new Box(BoxLayout.X_AXIS);
		box.add(Box.createHorizontalStrut(10));
		box.add(title);
		box.add(Box.createHorizontalGlue());
		box.add(search);
		box.add(Box.createHorizontalStrut(3));

		JPanel panel = new JPanel(new BorderLayout());
		panel.add(gview, BorderLayout.CENTER);
		panel.add(box, BorderLayout.SOUTH);

		Color BACKGROUND = Color.WHITE;
		Color FOREGROUND = Color.DARK_GRAY;
		UILib.setColor(panel, BACKGROUND, FOREGROUND);

		return panel;
	}

	// ------------------------------------------------------------------------

	/**
	 * Switch the root of the tree by requesting a new spanning tree at the
	 * desired root
	 */
	public static class TreeRootAction extends GroupAction {
		public TreeRootAction(String graphGroup) {
			super(graphGroup);
		}

		public void run(double frac) {
			TupleSet focus = m_vis.getGroup(Visualization.FOCUS_ITEMS);
			if (focus == null || focus.getTupleCount() == 0)
				return;

			Graph g = (Graph) m_vis.getGroup(m_group);
			Node f = null;
			Iterator tuples = focus.tuples();
			while (tuples.hasNext()
					&& !g.containsTuple(f = (Node) tuples.next())) {
				f = null;
			}
			if (f == null)
				return;
			g.getSpanningTree(f);
		}
	}
} 

xml文件 涉及一些数据问题，不贴了，大概编写一下格式

<?xml version="1.0" encoding="GB2312"?>
	<!--  An excerpt of an egocentric social network  -->
<graphml xmlns="http://graphml.graphdrawing.org/xmlns">
	<graph edgedefault="undirected">

		<!-- data schema -->
		<key id="name" for="node" attr.name="name" attr.type="string" />
		<key id="gender" for="node" attr.name="gender" attr.type="string" />

		<!-- nodes -->
		<node id="1">
			<data key="name">张三</data>
			<data key="gender">H</data>
		</node>
                <node id="2">
			<data key="name">王二</data>
			<data key="gender">H</data>
		</node>
          
		//此处省略。。。



         
		<node id="107">
			<data key="name">D:资源部</data>
			<data key="gender">D</data>
		</node>
		<node id="108">
			<data key="name">D:发展部</data>
			<data key="gender">D</data>
		</node>
                //此处省略N多。。



		<node id="s1">
			<data key="name">P:管理安全</data>
			<data key="gender">P</data>
		</node>
		//此处省略




             
             <edge source="1" target="s1"></edge>
             <edge source="1" target="100"></edge>
             <edge source="1" target="s2"></edge>
	     <edge source="1" target="s3"></edge>


             <edge source="2" target="s1"></edge>
             <edge source="2" target="101"></edge>
             <edge source="2" target="s2"></edge> 
	     <edge source="2" target="s3"></edge>
	     <edge source="2" target="s7"></edge>
	     <edge source="2" target="s8"></edge>
	     <edge source="2" target="s9"></edge>
 	     <edge source="2" target="s13"></edge>



             <edge source="3" target="102"></edge>
             <edge source="3" target="s1"></edge>


             <edge source="4" target="103"></edge>
             <edge source="4" target="s1"></edge>

	     <edge source="5" target="s2"></edge>
             <edge source="5" target="100"></edge>


             <edge source="6" target="s2"></edge>
             <edge source="6" target="101"></edge>

             <edge source="7" target="s3"></edge>
	     <edge source="7" target="s7"></edge>
             <edge source="7" target="104"></edge>
             
             <edge source="8" target="105"></edge>
 	     <edge source="8" target="s4"></edge>            	     
             <edge source="8" target="s15"></edge>
	     <edge source="8" target="s16"></edge>

	     <edge source="9" target="100"></edge>
             <edge source="9" target="s5"></edge>

	     <edge source="10" target="104"></edge>
             <edge source="10" target="s5"></edge>


             <edge source="11" target="100"></edge>
             <edge source="11" target="s6"></edge>

	     <edge source="12" target="106"></edge>
             <edge source="12" target="s6"></edge>	

            
	     <edge source="13" target="100"></edge>
             <edge source="13" target="s7"></edge>

 	    <edge source="14" target="s8"></edge>
            <edge source="14" target="s9"></edge> 
	    <edge source="14" target="s10"></edge>
            <edge source="14" target="s11"></edge> 
	    <edge source="14" target="s12"></edge>
            <edge source="14" target="s13"></edge>
	    <edge source="14" target="100"></edge>

	    <edge source="15" target="108"></edge>
            <edge source="15" target="s12"></edge>
	    <edge source="15" target="s14"></edge>

 	    <edge source="16" target="s14"></edge> 
	    <edge source="16" target="s15"></edge>
            <edge source="16" target="s16"></edge>
	    <edge source="16" target="100"></edge>

	    <edge source="17" target="s11"></edge>
	    <edge source="17" target="107"></edge>	  




	 
</graph>
</graphml>

至于完成后的图像 等我改过数据后再贴。。。。
转载请标出处，前段在网上搜不到相关资料，我自己摸索出来点东西贴上来吧，过了没两周，网上铺天盖地的全是那篇文章。。哎，这样太浪费那些急于找相关资料人的时间了。