stroke = new BasicStroke(
               0.2f*ds,//width
               BasicStroke.CAP_BUTT,
               BasicStroke.JOIN_ROUND);
    g2.setStroke(stroke);
     
    GeneralPath gp3 = new GeneralPath();
    gp3.moveTo(1.25f*ds,-1.25f*ds);
    gp3.lineTo(1.50f*ds,-0.25f*ds);
    gp3.lineTo(1.75f*ds,-1.25f*ds);
     
    g2.setPaint(Color.red);
    g2.draw(gp3);

Figure 11