for (int i = 0; i < number_of_curves; i++) {
FEPoint p1;
FEPoint p2;
FEPoint p3;
FEPoint p4;
Curve pe;
pe = curve[i];
p1 = pe.returnStartPoint();
p2 = pe.returnStartControlPoint();
p3 = pe.returnEndControlPoint();
p4 = pe.returnEndPoint();
if (p3 != null) {
plotControlPoint(g, p3, DARK_BLUE, Color.cyan, c);
}