#print('DEBUG merging to', old_cone)
old_cone[0] = new_cone[0]
#print('DEBUG merged cone:', old_cone)
return True
if new_cone[1] < old_cone[1] and \
#print('DEBUG merging to', old_cone)
old_cone[0] = new_cone[0]
#print('DEBUG merged cone:', old_cone)
return True
if new_cone[1] < old_cone[1] and \