//We need 3 more points
        double dx = x2 - x1;
        double dy = y2 - y1;

        double length = sqrt(pow(dx,2) + pow(dy,2));

        //First point @ 1/3rd of the line
        double xeenderde = x1 + dx/3;
        double yeenderde = y1 + dy/3;

        //Second point @ 2/3rd of the line
        double xtweederde = x2 - dx/3;
        double ytweederde = y2 - dy/3;

        //Third point
        double xorigin = (xtweederde + xeenderde)/2;
        double yorigin = (ytweederde + yeenderde)/2;

        double xouter = xorigin - dy/(2*sqrt(3.0));  //klopt het delen door??
        double youter = yorigin + dx/(2*sqrt(3.0));