pt minPT = new pt(10000,10000);  
  pt maxPT = new pt(-10000,-10000);  


void minmax (Polyloop poly) {
  minPT.x = 10000;
  minPT.y = 10000;
  maxPT.x = -10000;
  maxPT.y = -10000;

  for (int i=0; i<poly.vn; i++) {
    if (poly.P[i].x < minPT.x)
       minPT.x = poly.P[i].x;
    if (poly.P[i].y < minPT.y)
       minPT.y = poly.P[i].y;
    if (poly.P[i].x > maxPT.x)
       maxPT.x = poly.P[i].x;
    if (poly.P[i].y > maxPT.y)
       maxPT.y = poly.P[i].y;
       
//       println("Min = " + minPT.x + ", " + minPT.y);
    //   println("Max = " + maxPT.x + ", " + maxPT.y);
  }
}

pt quantize (pt P) {
  float x = P.x;
  float y = P.y;
  
  pt nP = new pt(0,0);
  nP.x = (float) (int) ( ( (x-minPT.x)/(maxPT.x - minPT.x) ) * (4095.0f) + .5);
  nP.y = (float) (int) ( ( (y-minPT.y)/(maxPT.y - minPT.y) ) * (4095.0f) + .5);

  return nP;
}


pt dequantize (pt P) {
  float x = P.x;
  float y = P.y;

  pt nP = new pt(0,0);
  //nP.x = (float) (int) ( ( ( (x*(maxPT.x - minPT.x) + minPT.x) ) / 4095.0f ) + .5);
  //nP.y = (float) (int) ( ( ( (y*(maxPT.y - minPT.y) + minPT.y) ) / 4095.0f ) + .5);
println(x+y);
  nP.x = (float) (int)(float) ( ( (x*(maxPT.x - minPT.x) ) / 4095.0f ) + minPT.x + .5);
  nP.y = (float) (int)(float) ( ( (y*(maxPT.y - minPT.y) ) / 4095.0f ) + minPT.y + .5);

  return nP;
}