public double[] getZeros(Set<Double> zeros) {
if (ineq != null) {
GeoPoint[] zeroPoints = ineq.getZeros();
for (int i = 0; i < zeroPoints.length; i++) {
zeros.add(zeroPoints[i].getX());
}
}
if (left != null) {
left.getZeros(zeros);
}
if (right != null) {
right.getZeros(zeros);
}
return null;
}
