actually they should be accessible somewhere? until found, i'm using my hacked together vector class....

 public float length() {
   return PApplet.sqrt(x*x + y*y);
 }

 public Vector normalize() {
   return divide(length());
 }

 public Vector divide(float _divisor) {
   return new Vector(x/_divisor, y/_divisor);
 }
 
 public Vector sameDirWithLength(float _length) {
   return normalize().multiply(_length);
 
 }