Java 在创建jframe时预使用图像
我试着用Prefuse在它们之间画两幅图和一条线。但是,我的图像不会加载到CreateJFrame上。单击标签时,会显示单击的标签图像。但我希望这些图像出现在jframe的创建中。我该怎么做呢 这是我的密码Java 在创建jframe时预使用图像,java,drawing,prefuse,Java,Drawing,Prefuse,我试着用Prefuse在它们之间画两幅图和一条线。但是,我的图像不会加载到CreateJFrame上。单击标签时,会显示单击的标签图像。但我希望这些图像出现在jframe的创建中。我该怎么做呢 这是我的密码 import java.awt.Font; import java.awt.image.BufferedImage; import java.io.File; import java.io.IOException; import javax.imageio.ImageIO; imp
import java.awt.Font;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import prefuse.Constants;
import prefuse.Display;
import prefuse.Visualization;
import prefuse.action.ActionList;
import prefuse.action.assignment.ColorAction;
import prefuse.action.assignment.DataSizeAction;
import prefuse.action.assignment.FontAction;
import prefuse.action.layout.graph.BalloonTreeLayout;
import prefuse.activity.Activity;
import prefuse.controls.DragControl;
import prefuse.controls.PanControl;
import prefuse.controls.ZoomControl;
import prefuse.data.Graph;
import prefuse.data.io.DataIOException;
import prefuse.data.io.GraphMLReader;
import prefuse.render.DefaultRendererFactory;
import prefuse.render.ImageFactory;
import prefuse.render.LabelRenderer;
import prefuse.util.ColorLib;
import prefuse.util.FontLib;
import prefuse.visual.VisualItem;
public class Example {
public static void main(String[] argv) throws Exception {
Graph graph = null;
try {
graph = new GraphMLReader().readGraph("/socialnet.xml");
} catch ( DataIOException e ) {
e.printStackTrace();
System.err.println("Error loading graph. Exiting...");
System.exit(1);
}
ImageFactory imageFactory = new ImageFactory(100,100);
try
{
//load images and construct imageFactory.
String images[] = new String[3];
images[0] = "data/images/Switch.jpg";
images[1] = "data/images/soup122.jpg";
images[2] = "data/images/soup1.png";
String[] names = new String[] {"Switch","soup1","Router"};
BufferedImage img = null;
for(int i=0; i < images.length ; i++)
{
try {
img = ImageIO.read(new File(images[i]));
imageFactory.addImage(names[i],img);
}
catch (IOException e){
}
}
}
catch(Exception exp)
{
}
Visualization vis = new Visualization();
vis.add("graph", graph);
LabelRenderer nodeRenderer = new LabelRenderer("name", "type");
nodeRenderer.setVerticalAlignment(Constants.BOTTOM);
nodeRenderer.setHorizontalPadding(0);
nodeRenderer.setVerticalPadding(0);
nodeRenderer.setImagePosition(Constants.TOP);
nodeRenderer.setMaxImageDimensions(100,100);
DefaultRendererFactory drf = new DefaultRendererFactory();
drf.setDefaultRenderer(nodeRenderer);
vis.setRendererFactory(drf);
ColorAction nText = new ColorAction("graph.nodes", VisualItem.TEXTCOLOR);
nText.setDefaultColor(ColorLib.gray(100));
ColorAction nEdges = new ColorAction("graph.edges", VisualItem.STROKECOLOR);
nEdges.setDefaultColor(ColorLib.gray(100));
// bundle the color actions
ActionList draw = new ActionList();
//MAD - changing the size of the nodes dependent on the weight of the people
final DataSizeAction dsa = new DataSizeAction("graph.nodes","size");
draw.add(dsa);
draw.add(nText);
draw.add(new FontAction("graph.nodes", FontLib.getFont("Tahoma",Font.BOLD, 12)));
draw.add(nEdges);
vis.putAction("draw", draw);
ActionList layout = new ActionList(Activity.DEFAULT_STEP_TIME);
BalloonTreeLayout balloonlayout = new BalloonTreeLayout("graph",50);
layout.add(balloonlayout);
Display d = new Display(vis);
vis.putAction("layout", layout);
// start up the animated layout
vis.run("draw");
vis.run("layout");
d.addControlListener(new DragControl());
// pan with left-click drag on background
d.addControlListener(new PanControl());
// zoom with right-click drag
d.addControlListener(new ZoomControl());
// -- 6. launch the visualization -------------------------------------
// create a new window to hold the visualization
JFrame frame = new JFrame("prefuse example");
// ensure application exits when window is closed
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(d);
frame.pack(); // layout components in window
frame.setVisible(true); // show the window
}
}`
导入java.awt.Font;
导入java.awt.image.buffereImage;
导入java.io.File;
导入java.io.IOException;
导入javax.imageio.imageio;
导入javax.swing.JFrame;
导入prefuse.Constants;
导入prefuse.Display;
导入使用前可视化;
导入prefuse.action.ActionList;
导入prefuse.action.assignment.ColorAction;
导入prefuse.action.assignment.DataSizeAction;
导入prefuse.action.assignment.FontAction;
导入prefuse.action.layout.graph.BallootTreeLayout;
导入prefuse.activity.activity;
导入prefuse.controls.DragControl;
导入prefuse.controls.PanControl;
导入prefuse.controls.ZoomControl;
导入prefuse.data.Graph;
导入prefuse.data.io.DataIOException;
导入prefuse.data.io.GraphMLReader;
导入prefuse.render.DefaultRenderFactory;
导入prefuse.render.ImageFactory;
导入prefuse.render.LabelRenderer;
导入prefuse.util.ColorLib;
导入prefuse.util.FontLib;
导入prefuse.visual.VisualItem;
公开课范例{
公共静态void main(字符串[]argv)引发异常{
图=空;
试一试{
graph=newgraphmlreader().readGraph(“/socialnet.xml”);
}捕获(DataIOE异常){
e、 printStackTrace();
System.err.println(“错误加载图形。正在退出…”);
系统出口(1);
}
ImageFactory ImageFactory=新ImageFactory(100100);
尝试
{
//加载图像并构建imageFactory。
字符串图像[]=新字符串[3];
images[0]=“data/images/Switch.jpg”;
images[1]=“data/images/soup122.jpg”;
images[2]=“data/images/soup1.png”;
字符串[]名称=新字符串[]{“交换机”、“soup1”、“路由器”};
BuffereImage img=null;
对于(int i=0;i
这是我的Xml文件
<?xml version="1.0" encoding="UTF-8"?>
<!-- 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="type" for="node" attr.name="type" attr.type="string"/>
<!-- nodes -->
<node id="1">
<data key="name">Switch1</data>
<data key="type">data/images/Switch.jpg</data>
</node>
<node id="2">
<data key="name">Switch2</data>
<data key="type">data/images/soup1.png</data>
</node>
<edge source="1" target="2"></edge>
</graph>
</graphml>
开关1
data/images/Switch.jpg
开关2
数据/图像/soup1.png
尝试在jframe创建后运行绘图操作,即
// create a new window to hold the visualization
JFrame frame = new JFrame("prefuse example");
// ensure application exits when window is closed
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.add(d);
frame.pack(); // layout components in window
frame.setVisible(true); // show the window
vis.run("draw");
vis.run("layout");
或者,如果这不起作用,调用frame.repaint()。我在想,你需要以某种方式强制绘制可视化效果。这是关于我的高级项目的,请帮忙