public double xValue(double t) {
if (t < 0.1) {
b = bb.getValue();
if ((b < 0.0) || (b > Math.PI / 2)) {
bb.setValue(Math.max(0, Math.min(b, Math.PI / 2))); // This does not belong here
b = bb.getValue();
}
a = 3.0 * Math.cos((b - Math.PI / 8) * 4 / 3);
b = Math.tan(b);
}
return a * (Math.cos(t) / sinsq(t) + (1 - b) * (2 / sinsq(t) - 1) / Math.sqrt(2.0));
}
