bool is_disjoint(const line_segment& l, const line_segment& m) {
if (l == m) {
return false;
}
//std::cerr << l.direction() << ", " << m.direction() << std::endl;
if (l.direction() == m.direction() || l.opposite().direction() == m.direction()) {
//std::cerr << l.has_on(m.source()) << l.has_on(m.target());
if (l.has_on(m.source())) {
if (l.source() != m.source() && l.target() != m.source()) {
return false;
}
} else if (l.has_on(m.target())) {
if (l.source() != m.target() && l.target() != m.target()) {
return false;
}
}
} else {
return true;
}
return true;
}
line_segment<double,3> Sector::sector_to_clas(const line_segment<double,3>& l) const
{
return line_segment<double,3>{
this->sector_to_clas(l.point()),
this->sector_to_clas(l.direction()) };
}