//created=31 Dec 07
//description=Line simplification using SGImplify 
//title=SGImplify Example
//titlebar=Line simplification using SGImplify 
//publish=false
//tags=example
 
import SGImplify.*;
import Tuple.*;
 
Vector path = new Vector();
 
void setup(){
  
  size(550,550);
  smooth();
 
}
 
void draw(){
  background(255);
  Tuple2f pt;
  noFill();
  
  strokeWeight(1);
  beginShape();
  for (int i=0; i < path.size(); i++){
    pt = (Tuple2f)path.elementAt(i);
    vertex(pt.x,pt.y);      
  }
  endShape();
 
  strokeWeight(5);
  beginShape(POINTS);
  for (int i=0; i < path.size(); i++){
    pt = (Tuple2f)path.elementAt(i);
    vertex(pt.x,pt.y);      
  }
  endShape();
 
 
 
}
 
void mousePressed(){
  
  path = new Vector();
 
}
 
void mouseDragged(){
 
    path.add(new Tuple2f(mouseX, mouseY));
 
}
 
void mouseReleased(){
 
  //to simplify, get our points into an array of Tuple2f
  if (path.size() > 1){
  Tuple2f [] tmp = new Tuple2f[path.size()-1];
  
  for (int i =0; i < path.size()-1; i++){
    tmp[i] = (Tuple2f)path.elementAt(i+1);
  }
 
  path = new Vector();
  path.addAll(Arrays.asList(SGImplify.simplifyLine2D(5,tmp)));
  }
}