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我試圖在給定位置設置頂點的座標（x & y）。我使用VertexImageShaperDemo示例。每個頂點的x，y座標已經在數據庫中。你能幫我把所有的IP地址放在它們的正方形的特定位置（見圖片）。Java，Jung Framework：如何編輯和設置頂點位置
任何想法如何做到這一點？
這裏是我工作的代碼：
public class VertexImageShaperDemo extends JApplet {
private static final long serialVersionUID = -4332663871914930864L;
private static int VERTEX_COUNT ;
Map<Number,Double> mapX = new HashMap<Number,Double>();
Map<Number,Double> mapY = new HashMap<Number,Double>();
/**
* the graph
*/
DirectedSparseGraph<Number, Number> graph;
//edu.uci.ics.jung.graph
/**
* the visual component and renderer for the graph
*/
VisualizationViewer<Number, Number> vv;
/**
* some icon names to use
*/
// String[] iconNames ;
// ArrayList<String> iconNames = new ArrayList<String>();
public VertexImageShaperDemo(JFrame frm) {
try{
String pilote = "com.mysql.jdbc.Driver";
Class.forName(pilote);
Connection connexion = DriverManager.getConnection("jdbc:mysql://localhost:3306/topology","root","");
Statement instruction = connexion.createStatement();
ResultSet resultat = instruction.executeQuery("select count(*) from node");
resultat.next();
int rowcount = resultat.getInt(1);
VERTEX_COUNT = rowcount;
} catch (Exception e1){
System.out.println("echec pilote VERTEX_COUNT : "+e1);
}
// create a simple graph for the demo
graph = new DirectedSparseGraph<Number,Number>();
createGraph(VERTEX_COUNT);
// a Map for the labels
Map<Number,String> map = new HashMap<Number,String>();
/*
for(int i=1; i<=VERTEX_COUNT; i++) {
map.put(i, iconNames[i%iconNames.length]);
}
*/
try{
String pilote = "com.mysql.jdbc.Driver";
Class.forName(pilote);
Connection connexion = DriverManager.getConnection("jdbc:mysql://localhost:3306/topology","root","");
Statement instruction = connexion.createStatement();
ResultSet resultat_Nodes = instruction.executeQuery("select * from node");
while(resultat_Nodes.next()){
int Node_ID =resultat_Nodes.getInt("Node_ID");
String Host_name = resultat_Nodes.getString("Host_name");
int OL_Bit =resultat_Nodes.getInt("OL_Bit");
String TE_rtr_ID = resultat_Nodes.getString("TE_rtr_ID");
double X = resultat_Nodes.getDouble("X");
double Y = resultat_Nodes.getDouble("Y");
//iconNames[Node_ID] = Host_name;
map.put(Node_ID, TE_rtr_ID);
mapX.put(Node_ID, X);
mapY.put(Node_ID, Y);
}
} catch (Exception e1){
System.out.println("echec pilote Nodes : "+e1);
}
// a Map for the Icons
final FRLayout <Number, Number> layout = new FRLayout <Number, Number>(graph);
//layout.setMaxIterations(100);
// layout.setInitializer(new RandomLocationTransformer<Number>(new Dimension(400,400), 0));
vv = new VisualizationViewer<Number, Number>(layout, new Dimension(400,400));
// This demo uses a special renderer to turn outlines on and off.
// you do not need to do this in a real application.
// Instead, just let vv use the Renderer it already has
vv.getRenderer().setVertexRenderer(new DemoRenderer<Number,Number>());
//PickedState<String> ps = vv.setPickedVertexState();
//Renderer.VertexLabel.Position position =
//(Renderer.VertexLabel.Position)e.getItem();
//vv.getRenderer().getVertexLabelRenderer().setPosition(position);
//vv.repaint();
Transformer<Number,Paint> vpf = new PickableVertexPaintTransformer<Number>(vv.getPickedVertexState(), Color.white, Color.yellow);
vv.getRenderContext().setVertexFillPaintTransformer(vpf);
vv.getRenderContext().setEdgeDrawPaintTransformer(new PickableEdgePaintTransformer<Number>(vv.getPickedEdgeState(), Color.black, Color.cyan));
vv.setBackground(Color.white);
final Transformer<Number,String> vertexStringerImpl = new VertexStringerImpl<Number,String>(map);
vv.getRenderContext().setVertexLabelTransformer(vertexStringerImpl);
vv.getRenderer().getVertexLabelRenderer().setPosition(Position.CNTR);
vv.getRenderContext().setVertexLabelRenderer(new DefaultVertexLabelRenderer(Color.green));
// vv.getRenderContext().setEdgeShapeTransformer(new EdgeShape.Line<Integer,String>());
vv.getRenderContext().setEdgeShapeTransformer(new EdgeShape.Line());
vv.getRenderContext().setEdgeLabelRenderer(new DefaultEdgeLabelRenderer(Color.cyan));
vv.getRenderContext().setEdgeLabelTransformer(new Transformer<Number,String>() {
public String transform(Number input) {
return input.toString();
}});
// For this demo only, I use a special class that lets me turn various
// features on and off. For a real application, use VertexIconShapeTransformer instead.
final DemoVertexIconShapeTransformer<Number> vertexIconShapeTransformer =
new DemoVertexIconShapeTransformer<Number>(new EllipseVertexShapeTransformer<Number>());
final DemoVertexIconTransformer<Number> vertexIconTransformer =
new DemoVertexIconTransformer<Number>();
vv.getRenderContext().setVertexShapeTransformer(vertexIconShapeTransformer);
vv.getRenderContext().setVertexIconTransformer(vertexIconTransformer);
/********************************************************************************************************/
/*
JFrame frame = new JFrame("Editing and Mouse Menu Demo");
SparseMultigraph<GraphElements.MyVertex, GraphElements.MyEdge> g = new SparseMultigraph<GraphElements.MyVertex, GraphElements.MyEdge>();
// Layout<V, E>, VisualizationViewer<V,E>
//Map<GraphElements.MyVertex,Point2D> vertexLocations = new HashMap<GraphElements.MyVertex, Point2D>();
Layout<GraphElements.MyVertex, GraphElements.MyEdge> layout = new StaticLayout(g);
layout.setSize(new Dimension(300,300));
VisualizationViewer<GraphElements.MyVertex,GraphElements.MyEdge> vv = new VisualizationViewer<GraphElements.MyVertex,GraphElements.MyEdge>(layout);
vv.setPreferredSize(new Dimension(350,350));
// Show vertex and edge labels
vv.getRenderContext().setVertexLabelTransformer(new ToStringLabeller());
vv.getRenderContext().setEdgeLabelTransformer(new ToStringLabeller());
// Create a graph mouse and add it to the visualization viewer
EditingModalGraphMouse gm = new EditingModalGraphMouse(vv.getRenderContext(), GraphElements.MyVertexFactory.getInstance(),GraphElements.MyEdgeFactory.getInstance());
// Set some defaults for the Edges...
GraphElements.MyEdgeFactory.setDefaultCapacity(192.0);
GraphElements.MyEdgeFactory.setDefaultWeight(5.0);
// Trying out our new popup menu mouse plugin...
PopupVertexEdgeMenuMousePlugin myPlugin = new PopupVertexEdgeMenuMousePlugin();
// Add some popup menus for the edges and vertices to our mouse plugin.
JPopupMenu edgeMenu = new MyMouseMenus.EdgeMenu(frame);
JPopupMenu vertexMenu = new MyMouseMenus.VertexMenu();
myPlugin.setEdgePopup(edgeMenu);
myPlugin.setVertexPopup(vertexMenu);
gm.remove(gm.getPopupEditingPlugin()); // Removes the existing popup editing plugin
gm.add(myPlugin); // Add our new plugin to the mouse
vv.setGraphMouse(gm);
//JFrame frame = new JFrame("Editing and Mouse Menu Demo");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.getContentPane().add(vv);
// Let's add a menu for changing mouse modes
JMenuBar menuBar = new JMenuBar();
JMenu modeMenu = gm.getModeMenu();
modeMenu.setText("Mouse Mode");
modeMenu.setIcon(null); // I'm using this in a main menu
modeMenu.setPreferredSize(new Dimension(80,20)); // Change the size so I can see the text
menuBar.add(modeMenu);
frame.setJMenuBar(menuBar);
gm.setMode(ModalGraphMouse.Mode.EDITING); // Start off in editing mode
frame.pack();
frame.setVisible(true);
*/
/***********************************************************************************************************/
// un-comment for RStar Tree visual testing
//vv.addPostRenderPaintable(new BoundingRectanglePaintable(vv.getRenderContext(), vv.getGraphLayout()));
// Get the pickedState and add a listener that will decorate the
// Vertex images with a checkmark icon when they are picked
//PickedState<Number> ps = vv.getPickedVertexState();
//ps.addItemListener(new PickWithIconListener<Number>(vertexIconTransformer));
// add a listener for ToolTips
vv.setVertexToolTipTransformer(new ToStringLabeller<Number>());
/*
vv.getGraphLayout().transform(1).setLocation(mapX.get(1), mapY.get(1));
vv.getGraphLayout().transform(2).setLocation(mapX.get(2), mapY.get(2));
vv.getGraphLayout().transform(3).setLocation(mapX.get(3), mapY.get(3));
vv.getGraphLayout().transform(4).setLocation(mapX.get(4), mapY.get(4));
vv.getGraphLayout().transform(5).setLocation(mapX.get(5), mapY.get(5));
vv.getGraphLayout().transform(6).setLocation(mapX.get(6), mapY.get(6));
vv.getGraphLayout().transform(7).setLocation(mapX.get(7), mapY.get(7));
vv.getGraphLayout().transform(8).setLocation(mapX.get(8), mapY.get(8));
*/
Container content = getContentPane();
final GraphZoomScrollPane panel = new GraphZoomScrollPane(vv);
content.add(panel);
final DefaultModalGraphMouse<Number,Number> graphMouse = new DefaultModalGraphMouse<Number,Number>();
// final EditingModalGraphMouse graphMouse = new EditingModalGraphMouse(vv.getRenderContext(), GraphElements.MyVertexFactory.getInstance(),GraphElements.MyEdgeFactory.getInstance());
/***********************************************************/
/*
// Set some defaults for the Edges...
GraphElements.MyEdgeFactory.setDefaultCapacity(192.0);
GraphElements.MyEdgeFactory.setDefaultWeight(5.0);
// Trying out our new popup menu mouse plugin...
PopupVertexEdgeMenuMousePlugin myPlugin = new PopupVertexEdgeMenuMousePlugin();
// Add some popup menus for the edges and vertices to our mouse plugin.
JPopupMenu edgeMenu = new MyMouseMenus.EdgeMenu(frm);
JPopupMenu vertexMenu = new MyMouseMenus.VertexMenu();
myPlugin.setEdgePopup(edgeMenu);
myPlugin.setVertexPopup(vertexMenu);
graphMouse.remove(graphMouse.getPopupEditingPlugin()); // Removes the existing popup editing plugin
graphMouse.add(myPlugin); // Add our new plugin to the mouse
*/
/***********************************************************/
vv.setGraphMouse(graphMouse);
vv.addKeyListener(graphMouse.getModeKeyListener());
final ScalingControl scaler = new CrossoverScalingControl();
JButton plus = new JButton("+");
plus.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
scaler.scale(vv, 1.1f, vv.getCenter());
}
});
JButton minus = new JButton("-");
minus.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
scaler.scale(vv, 1/1.1f, vv.getCenter());
}
});
JButton XYButton = new JButton("Save X & Y coordiantes");
XYButton.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
try{
String pilote = "com.mysql.jdbc.Driver";
Class.forName(pilote);
Connection connexion = DriverManager.getConnection("jdbc:mysql://localhost:3306/topology","root","");
Statement instruction = connexion.createStatement();
for (int i = 1; i <= VERTEX_COUNT; i++) {
mapX.put(i, layout.getX(i));
mapY.put(i, layout.getY(i));
instruction.executeUpdate("Update node set X =" + layout.getX(i) + ", Y="+ layout.getY(i) +"where Node_ID = " + i +"");
}
}
catch (Exception e1){
System.out.println("echec pilote : "+e1);
}
}
});
JCheckBox shape = new JCheckBox("Shape");
shape.addItemListener(new ItemListener(){
public void itemStateChanged(ItemEvent e) {
vertexIconShapeTransformer.setShapeImages(e.getStateChange()==ItemEvent.SELECTED);
vv.repaint();
}
});
shape.setSelected(false);
JCheckBox fill = new JCheckBox("Fill");
fill.addItemListener(new ItemListener(){
public void itemStateChanged(ItemEvent e) {
vertexIconTransformer.setFillImages(e.getStateChange()==ItemEvent.SELECTED);
vv.repaint();
}
});
fill.setSelected(false);
JCheckBox drawOutlines = new JCheckBox("Outline");
drawOutlines.addItemListener(new ItemListener(){
public void itemStateChanged(ItemEvent e) {
vertexIconTransformer.setOutlineImages(e.getStateChange()==ItemEvent.SELECTED);
vv.repaint();
}
});
drawOutlines.setSelected(true);
JComboBox modeBox = graphMouse.getModeComboBox();
JPanel modePanel = new JPanel();
modePanel.setBorder(BorderFactory.createTitledBorder("Mouse Mode"));
modePanel.add(modeBox);
/*
vv.setGraphMouse(graphMouse);
vv.addKeyListener(graphMouse.getModeKeyListener());
graphMouse.setMode(ModalGraphMouse.Mode.EDITING);
**/
JPanel scaleGrid = new JPanel(new GridLayout(1,0));
scaleGrid.setBorder(BorderFactory.createTitledBorder("Zoom"));
JPanel labelFeatures = new JPanel(new GridLayout(1,0));
labelFeatures.setBorder(BorderFactory.createTitledBorder("Image Effects"));
JPanel controls = new JPanel();
controls.add(XYButton);
scaleGrid.add(plus);
scaleGrid.add(minus);
controls.add(scaleGrid);
/*
labelFeatures.add(shape);
labelFeatures.add(fill);
labelFeatures.add(drawOutlines);
controls.add(labelFeatures);
*/
controls.add(modePanel);
content.add(controls, BorderLayout.SOUTH);
}
/**
* When Vertices are picked, add a checkmark icon to the imager.
* Remove the icon when a Vertex is unpicked
* @author Tom Nelson
*
*/
public static class PickWithIconListener<V> implements ItemListener {
DefaultVertexIconTransformer<V> imager;
Icon checked;
public PickWithIconListener(DefaultVertexIconTransformer<V> imager) {
this.imager = imager;
checked = new Checkmark();
}
public void itemStateChanged(ItemEvent e) {
Icon icon = imager.transform((V)e.getItem());
if(icon != null && icon instanceof LayeredIcon) {
if(e.getStateChange() == ItemEvent.SELECTED) {
((LayeredIcon)icon).add(checked);
} else {
((LayeredIcon)icon).remove(checked);
}
}
}
}
/**
* A simple implementation of VertexStringer that
* gets Vertex labels from a Map
*
* @author Tom Nelson
*
*
*/
public static class VertexStringerImpl<V,S> implements Transformer<V,String> {
/*
vv.getGraphLayout().transform(1).setLocation(mapX.get(1), mapY.get(1));
vv.getGraphLayout().transform(2).setLocation(mapX.get(2), mapY.get(2));
vv.getGraphLayout().transform(3).setLocation(mapX.get(3), mapY.get(3));
vv.getGraphLayout().transform(4).setLocation(mapX.get(4), mapY.get(4));
vv.getGraphLayout().transform(5).setLocation(mapX.get(5), mapY.get(5));
vv.getGraphLayout().transform(6).setLocation(mapX.get(6), mapY.get(6));
vv.getGraphLayout().transform(7).setLocation(mapX.get(7), mapY.get(7));
vv.getGraphLayout().transform(8).setLocation(mapX.get(8), mapY.get(8));
*/
Map<V,String> map = new HashMap<V,String>();
boolean enabled = true;
public VertexStringerImpl(Map<V,String> map) {
this.map = map;
}
/* (non-Javadoc)
* @see edu.uci.ics.jung.graph.decorators.VertexStringer#getLabel(edu.uci.ics.jung.graph.Vertex)
*/
public String transform(V v) {
if(isEnabled()) {
return map.get(v);
//layout.transform(v).setLocation(x, y);
} else {
return "";
}
}
/**
* @return Returns the enabled.
*/
public boolean isEnabled() {
return enabled;
}
/**
* @param enabled The enabled to set.
*/
public void setEnabled(boolean enabled) {
this.enabled = enabled;
}
}
/**
* create some vertices
* @param count how many to create
* @return the Vertices in an array
*/
private void createGraph(int vertexCount) {
for (int i = 1; i <= vertexCount; i++) {
graph.addVertex(i);
}
try{
String pilote = "com.mysql.jdbc.Driver";
Class.forName(pilote);
Connection connexion = DriverManager.getConnection("jdbc:mysql://localhost:3306/topology","root","");
Statement instruction = connexion.createStatement();
ResultSet resultat_Links = instruction.executeQuery("select * from link");
while(resultat_Links.next()){
int Link_ID =resultat_Links.getInt("Link_ID");
int Node_id =resultat_Links.getInt("Node_id");
int remote_link_node_id =resultat_Links.getInt("remote_link_node_id");
graph.addEdge(Link_ID, Node_id, remote_link_node_id, EdgeType.DIRECTED);
}
} catch (Exception e1){
System.out.println("echec pilote links : "+e1);
}
/*
* int j=1;
graph.addEdge(j++, 0, 1, EdgeType.DIRECTED);
graph.addEdge(j++, 3, 0, EdgeType.DIRECTED);
graph.addEdge(j++, 0, 4, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 5, EdgeType.DIRECTED);
graph.addEdge(j++, 5, 3, EdgeType.DIRECTED);
graph.addEdge(j++, 2, 1, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 1, EdgeType.DIRECTED);
graph.addEdge(j++, 8, 2, EdgeType.DIRECTED);
graph.addEdge(j++, 3, 8, EdgeType.DIRECTED);
graph.addEdge(j++, 6, 7, EdgeType.DIRECTED);
graph.addEdge(j++, 7, 5, EdgeType.DIRECTED);
graph.addEdge(j++, 0, 9, EdgeType.DIRECTED);
graph.addEdge(j++, 9, 8, EdgeType.DIRECTED);
graph.addEdge(j++, 7, 6, EdgeType.DIRECTED);
graph.addEdge(j++, 6, 5, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 2, EdgeType.DIRECTED);
graph.addEdge(j++, 5, 4, EdgeType.DIRECTED);
graph.addEdge(j++, 4, 10, EdgeType.DIRECTED);
graph.addEdge(j++, 10, 4, EdgeType.DIRECTED);
*/
}
/**
* this class exists only to provide settings to turn on/off shapes and image fill
* in this demo.
* In a real application, use DefaultVertexIconTransformer instead.
*
*/
public static class DemoVertexIconTransformer<V> extends DefaultVertexIconTransformer<V>
implements Transformer<V,Icon> {
boolean fillImages = true;
boolean outlineImages = false;
/**
* @return Returns the fillImages.
*/
public boolean isFillImages() {
return fillImages;
}
/**
* @param fillImages The fillImages to set.
*/
public void setFillImages(boolean fillImages) {
this.fillImages = fillImages;
}
public boolean isOutlineImages() {
return outlineImages;
}
public void setOutlineImages(boolean outlineImages) {
this.outlineImages = outlineImages;
}
public Icon transform(V v) {
if(fillImages) {
return (Icon)iconMap.get(v);
} else {
return null;
}
}
}
/**
* this class exists only to provide settings to turn on/off shapes and image fill
* in this demo.
* In a real application, use VertexIconShapeTransformer instead.
*
*/
public static class DemoVertexIconShapeTransformer<V> extends VertexIconShapeTransformer<V> {
boolean shapeImages = true;
public DemoVertexIconShapeTransformer(Transformer<V,Shape> delegate) {
super(delegate);
}
/**
* @return Returns the shapeImages.
*/
public boolean isShapeImages() {
return shapeImages;
}
/**
* @param shapeImages The shapeImages to set.
*/
public void setShapeImages(boolean shapeImages) {
shapeMap.clear();
this.shapeImages = shapeImages;
}
public Shape transform(V v) {
//Icon icon = (Icon) iconMap.get(v);
Icon icon = new LayeredIcon(new ImageIcon(VertexImageShaperDemo.class.getResource("/images/Router.png")).getImage());
if (icon != null && icon instanceof ImageIcon) {
Image image = ((ImageIcon) icon).getImage();
Shape shape = shapeMap.get(image);
if (shape == null) {
if (shapeImages) {
shape = FourPassImageShaper.getShape(image, 30);
} else {
shape = new Rectangle2D.Float(0, 0, image.getWidth(null), image.getHeight(null));
}
if(shape.getBounds().getWidth() > 0 &&
shape.getBounds().getHeight() > 0) {
int width = image.getWidth(null);
int height = image.getHeight(null);
AffineTransform transform =
AffineTransform.getTranslateInstance(-width/2, -height/2);
shape = transform.createTransformedShape(shape);
shapeMap.put(image, shape);
}
}
return shape;
} else {
return delegate.transform(v);
}
}
}
/**
* a special renderer that can turn outlines on and off
* in this demo.
* You won't need this for a real application.
* Use BasicVertexRenderer instead
*
* @author Tom Nelson
*
*/
class DemoRenderer<V,E> extends BasicVertexRenderer<V,E> {
public void paintIconForVertex(RenderContext<V,E> rc, V v, Layout<V,E> layout) {
//layout.transform(v).setLocation(mapX.get(v), mapY.get(v));
Point2D p = layout.transform(v);
p = rc.getMultiLayerTransformer().transform(Layer.LAYOUT, p);
//Shape shape = null;
float x = (float)p.getX();
float y = (float)p.getY();
//double x = mapX.get(v);
//double y = mapY.get(v);
GraphicsDecorator g = rc.getGraphicsContext();
boolean outlineImages = false;
Transformer<V,Icon> vertexIconFunction = rc.getVertexIconTransformer();
if(vertexIconFunction instanceof DemoVertexIconTransformer) {
outlineImages = ((DemoVertexIconTransformer<V>)vertexIconFunction).isOutlineImages();
}
Icon icon = vertexIconFunction.transform(v);
if(icon == null || outlineImages) {
if(mapX.isEmpty() && mapY.isEmpty()){
Shape s = AffineTransform.getTranslateInstance(mapX.get(v),mapY.get(v)).createTransformedShape(rc.getVertexShapeTransformer().transform(v).getBounds2D());
paintShapeForVertex(rc, v, s);
}
else{
Shape s = AffineTransform.getTranslateInstance(mapX.get(v),mapY.get(v)).createTransformedShape(rc.getVertexShapeTransformer().transform(v).getBounds2D());
paintShapeForVertex(rc, v, s);
}
/*
int xLoc = (int) (x - 50/2);
int yLoc = (int) (y - 50/2);
shape = new Rectangle (xLoc, yLoc, 50, 50);
paintShapeForVertex(rc, v, shape);
*/
}
if(icon != null) {
int xLoc = (int) (mapX.get(v) - icon.getIconWidth()/2);
int yLoc = (int) (mapY.get(v) - icon.getIconHeight()/2);
icon.paintIcon(rc.getScreenDevice(), g.getDelegate(), xLoc, yLoc);
}
}
}
/**
* a driver for this demo
*/
public static void main(String[] args) {
JFrame frame = new JFrame("Segment routing topology project");
Container content = frame.getContentPane();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
content.add(new VertexImageShaperDemo(frame));
frame.pack();
frame.setVisible(true);
}
}
您的問題不是很清楚，您的代碼示例不夠具體，無法證明您的具體問題;沒有人會閱讀你的幾百行代碼。我已經回答了我認爲你的問題在下面。 –