code: public static PathPoint curveTo(float c0X, float c0Y, float c1X, float c1Y, float x, float y) {
          return new PathPoint(c0X,  c0Y, c1X, c1Y, x, y);
      }
docs: Constructs and returns a PathPoint object that describes a cubic B�zier curve to the
  given xy location with the control points at c0 and c1.