Edge.prototype.adjustToAngle = function() {
  var ccw = Util.ccw(this.fx, this.fy, (this.fx + this.fvx), (this.fy + this.fvy),
    this.tx, this.ty);
  var delta = (ccw > 0) ? this.angleConstraintR : -this.angleConstraintR;
  var i = 0,