灵感：java2核心技术卷1（共两卷）

最近在看java2核心技术里面提到显示图片，于是就做了个心形图片组合图案。。。你懂得

import java.awt.*;
import java.awt.geom.*;
import java.awt.geom.Point2D.Double;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import javax.imageio.ImageIO;
import javax.swing.*;
public class DrawTest
{ 
   public static void main(String[] args)
   { 
      DrawFrame frame = new DrawFrame();
      frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                                                      
      frame.setVisible(true);
   }
}
/**
   A frame that contains a panel with drawings
*/
class DrawFrame extends JFrame
{
   public DrawFrame()
   {
      setTitle("DrawTest");
      setSize(DEFAULT_WIDTH, DEFAULT_HEIGHT);
      // add panel to frame
      DrawPanel panel = new DrawPanel();
      add(panel);
   }
   public static final int DEFAULT_WIDTH = 1000;
   public static final int DEFAULT_HEIGHT =1000; 
}
/**
   A panel that displays rectangles and ellipses.
*/
class DrawPanel extends JPanel
{ 
    private ArrayList<Image> image;
    DrawPanel(){
          try
          {
              image = new ArrayList<Image>();
              String[] s =
                  { "图片1地址",
                            "图片2地址",
                                    "图片3地址"
                    };
              System.out.println(s[0]);
              System.out.println(s[1]);
              System.out.println(s[2]);
             image.add(ImageIO.read(new File(s[0])));
             image.add(ImageIO.read(new File(s[1])));
             image.add(ImageIO.read(new File(s[2])));
          }
          catch (IOException e)
          {
             e.printStackTrace();
          }
    }
    public void paintComponent(Graphics g)
   { 
      super.paintComponent(g);
      Graphics2D g2 = (Graphics2D) g;
                                               
      //love
//     
//      double theta=0.00 ;
//      double offset = 0.0001;
//      double x;
//      double y;
//      Point2D prePoint = new Point2D.Double(0,0);
//      Point2D point = new Point2D.Double( 0, 0);
//      x= 500-20*(16*Math.pow(Math.sin(theta),3));
//    y= 500-20*(
//    13*Math.cos(theta)-5*Math.cos(2*theta)-2*Math.cos(3*theta)-Math.cos(4*theta) );
//    prePoint.setLocation(x, y);
//  
//      for( ;theta< 2*Math.PI;theta+= offset ){
//        x= 500-20*(16*Math.pow(Math.sin(theta),3));
//        y= 500-20*(
//        13*Math.cos(theta)-5*Math.cos(2*theta)-2*Math.cos(3*theta)-Math.cos(4*theta) );
//        point.setLocation(x, y);
//        Line2D line = new Line2D.Double(point, prePoint);
//        g2.draw( line );
//          prePoint.setLocation(point);
//      }//end love
                                                          
      // love filled with image
                                                          
      if (image.isEmpty()) return ;
                                                         
      int imageHeight = image.get(0).getHeight(this);
      int imageWidth = image.get(0).getWidth(this);
      System.out.println( imageHeight+"   "+imageWidth);
      double theta=0.00 ;
      double offset = 0.06;
      double x;
      double y;
      int nth=0;
      Point2D prePoint = new Point2D.Double(0,0);
      Point2D point = new Point2D.Double( 0, 0);
      x= 450-25*(16*Math.pow(Math.sin(theta),3));
      y= 400-25*(
       13*Math.cos(theta)-5*Math.cos(2*theta)-2*Math.cos(3*theta)-Math.cos(4*theta) );
      prePoint.setLocation(x, y);
      g.drawImage(image.get(nth++), (int)x, (int)y, null);
      for( ;theta< 2*Math.PI;theta+= offset ){
                                                             
          x= 450-25*(16*Math.pow(Math.sin(theta),3));
          y= 400-25*(
        13*Math.cos(theta)-5*Math.cos(2*theta)-2*Math.cos(3*theta)-Math.cos(4*theta) );
          point.setLocation(x, y);
          Line2D line = new Line2D.Double(point, prePoint);
         // g2.draw( line );
                                                              
          if(nth == 3) nth %=3;
          g2.drawImage(image.get(nth++),(int)x,(int)y,null);
                                                              
          prePoint.setLocation(point);
      }//end love filled with imag
   }
}

因涉及个人隐私故把图片匿了，运行不了请及时评论。

谢谢！

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用java实现 图片组成心形图案,布布扣,bubuko.com

用java实现 图片组成心形图案