static inline void analyze(Ratio const& r,
int& in_segment_count,
int& on_end_count,
int& outside_segment_count)
{
if (r.on_end())
{
on_end_count++;
}
else if (r.in_segment())
{
in_segment_count++;
}
else
{
outside_segment_count++;
}
}
static inline int arrival_value(Ratio const& r_from, Ratio const& r_to)
{
// a1--------->a2
// b1----->b2
// a departs: -1
// a1--------->a2
// b1----->b2
// a arrives: 1
// a1--------->a2
// b1----->b2
// both arrive there -> r-to = 1/1, or 0/1 (on_segment)
// First check the TO (for arrival), then FROM (for departure)
return r_to.in_segment() ? 1
: r_to.on_segment() ? 0
: r_from.on_segment() ? -1
: -1
;
}