Libgdx TexturePacker大図を小図に分割

TexturePackerパッケージの大きな図を前の小さな図に復元するにはどうすればいいですか?次のアルゴリズムは簡単に実現します!

import java.awt.image.BufferedImage;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStreamReader;
import java.util.ArrayList;

import javax.imageio.ImageIO;

public class main {
    public static void toPNG(String pathTxt,String pathPNG,String OUT)
    {
        ArrayList name=new ArrayList();
        ArrayList xy=new ArrayList();
        ArrayList size=new ArrayList();
        try {
            String encoding = "GBK";
            File file = new File(pathTxt);
            if (file.isFile() && file.exists()) { //         
                InputStreamReader read = new InputStreamReader(
                        new FileInputStream(file), encoding);//        
                BufferedReader bufferedReader = new BufferedReader(read);
                String lineTxt = null;
                int lineNum=0,lineNum2=0;
                while ((lineTxt = bufferedReader.readLine()) != null) {
                    lineNum++;
                    if(lineNum2>0)
                        lineNum2++;
                    if(lineNum==5)
                        lineNum2=1;
                    if(lineNum%7==5)
                        name.add(lineTxt);
                    if(lineNum2%7==3)
                        xy.add(lineTxt);
                    if(lineNum2%7==4)
                        size.add(lineTxt);          
                }
                read.close();
            } else {
                System.out.println("        ");
            }
            BufferedImage image = (BufferedImage)ImageIO.read(new File(pathPNG));
            for(int i=0;iget(i),p2=xy.get(i),p3=size.get(i);

                int x=0,y=0,w=0,h=0,flag=0;
                for(int j=0;jif(p2.charAt(j)<='9' && p2.charAt(j)>='0' )
                    {
                        if(flag==0)
                        {
                            x=x*10+p2.charAt(j)-'0';
                        }
                        else
                        {
                            y=y*10+p2.charAt(j)-'0';
                        }
                    }
                    if(p2.charAt(j)==',')
                        flag=1;

                }
                flag=0;
                for(int j=0;jif(p3.charAt(j)<='9' && p3.charAt(j)>='0' )
                    {
                        if(flag==0)
                            w=w*10+p3.charAt(j)-'0';
                        else
                            h=h*10+p3.charAt(j)-'0';
                    }
                    if(p3.charAt(j)==',')
                        flag=1;

                }

                File f=new File(OUT);
                if(!f.exists())
                    f.mkdirs();
                ImageIO.write(image.getSubimage(x,y,w,h),"png",new FileOutputStream(OUT+"/"+p1+".png"));
                System.out.println(p1+":finished");
            }

        } catch (Exception e) {
            System.out.println("        ");
            e.printStackTrace();
        }

    }
    public static void main(String[] args) {
        // TODO          
        toPNG("g:/help.txt","g:/help.png","g:/ss");//atlas  ，    ，      
    }

}

Demoダウンロード