/srv/osrm/osrm-backend/src/util/guidance
Edit: /srv/osrm/osrm-backend/src/util/guidance/bearing_class.cpp (2776B)
#include "util/guidance/bearing_class.hpp"
#include "util/bearing.hpp"
#include
#include
namespace osrm::util::guidance
{
BearingClass::BearingClass() { available_bearings.reserve(10); }
bool BearingClass::operator==(const BearingClass &other) const
{
BOOST_ASSERT(std::is_sorted(available_bearings.begin(), available_bearings.end()));
BOOST_ASSERT(std::is_sorted(other.available_bearings.begin(), other.available_bearings.end()));
if (other.available_bearings.size() != available_bearings.size())
return false;
for (std::size_t i = 0; i < available_bearings.size(); ++i)
if (available_bearings[i] != other.available_bearings[i])
return false;
return true;
}
bool BearingClass::operator<(const BearingClass &other) const
{
BOOST_ASSERT(std::is_sorted(available_bearings.begin(), available_bearings.end()));
BOOST_ASSERT(std::is_sorted(other.available_bearings.begin(), other.available_bearings.end()));
if (available_bearings.size() < other.available_bearings.size())
return true;
if (available_bearings.size() > other.available_bearings.size())
return false;
for (std::size_t i = 0; i < available_bearings.size(); ++i)
{
if (available_bearings[i] < other.available_bearings[i])
return true;
if (available_bearings[i] > other.available_bearings[i])
return false;
}
return false;
}
void BearingClass::add(const DiscreteBearing bearing) { available_bearings.push_back(bearing); }
const std::vector &BearingClass::getAvailableBearings() const
{
return available_bearings;
}
DiscreteBearing BearingClass::getDiscreteBearing(const double bearing)
{
BOOST_ASSERT(0. <= bearing && bearing <= 360.);
auto shifted_bearing = (bearing + 0.5 * discrete_step_size);
if (shifted_bearing >= 360.)
shifted_bearing -= 360;
return static_cast(shifted_bearing / discrete_step_size);
}
std::size_t BearingClass::findMatchingBearing(const double bearing) const
{
BOOST_ASSERT(!available_bearings.empty());
// the small size of the intersections allows a linear compare
auto discrete_bearing = static_cast(bearing);
auto max_element =
std::max_element(available_bearings.begin(),
available_bearings.end(),
[&](const DiscreteBearing first, const DiscreteBearing second) {
return angularDeviation(first, discrete_bearing) >
angularDeviation(second, discrete_bearing);
});
return std::distance(available_bearings.begin(), max_element);
}
} // namespace osrm::util::guidance