text: /**
   * Created by titus on 10/03/17.
   */
  module.exports = ccw;
  // Three points are a counter-clockwise turn if ccw > 0, clockwise if ccw < 0,
  // and collinear if ccw = 0 because ccw is a determinant that gives twice the
  // signed area of the triangle ABC. Assumes the origin [0,0] is the top-left.
  function ccw(xa, ya, xb, yb, xc, yc) {
  	return (yb - ya) * (xc - xa) - (xb - xa) * (yc - ya);
  }
  
  
  