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  1. import java.applet.Applet;
  2. import java.awt.Graphics;
  3. class MainApp extends Applet {
  4.  double xp1=300;
  5.  double yp1=300;
  6.  double xp2=10;
  7.  double yp2=300;
  8.  double sin60=Math.sin(3.14/3.);
  9.  int nivel_de_recursividad=6;
  10.  
  11.  public MainApp() { }
  12.  
  13.  public static void main(String[] args) { }
  14.  
  15.  public void paint(Graphics g){
  16.    paintRecursivo(g,nivel_de_recursividad,xp1,yp1,xp2,yp2);
  17.  }
  18.  
  19.  private void paintRecursivo(Graphics g, int i, double xp12, double yp12, double xp22, double yp22 ) {
  20.  double dx=(xp22-xp12)/3.;
  21.  double dy=(yp22-yp12)/3.;
  22.  double xx=xp12+3*dx/2.-dy*sin60;
  23.  double yy=yp12+3*dy/2.+dx*sin60;
  24.  if(i<=0){
  25.       g.drawLine((int)xp12,(int)yp12,(int)xp22,(int)yp22);
  26.  }
  27.  else{
  28.      paintRecursivo(g,i-1,xp12,yp12,xp12+dx,yp12+dy);
  29.      paintRecursivo(g,i-1,xp12+dx,yp12+dy,xx,yy);
  30.      paintRecursivo(g,i-1,xx,yy,xp22-dx,yp22-dy);
  31.      paintRecursivo(g,i-1,xp22-dx,yp22-dy,xp22,yp22);
  32.  }
  33. } }
  34.  
Success #stdin #stdout 0.22s 55608KB
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https://ideone.com/r8UchZ
language:
Java (HotSpot 12)
created:
1 year ago
visibility:
public

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