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#include "geometry/nearby_points_sweeper.hpp"
namespace m2
{
// NearbyPointsSweeper::Event ----------------------------------------------------------------------
NearbyPointsSweeper::Event::Event(Type type, double y, double x, size_t index, uint8_t priority)
: m_type(type), m_y(y), m_x(x), m_index(index), m_priority(priority)
{
}
bool NearbyPointsSweeper::Event::operator<(Event const & rhs) const
{
if (m_y != rhs.m_y)
return m_y < rhs.m_y;
if (m_type != rhs.m_type)
return m_type < rhs.m_type;
if (m_x != rhs.m_x)
return m_x < rhs.m_x;
if (m_index != rhs.m_index)
return m_index < rhs.m_index;
return m_priority < rhs.m_priority;
}
// NearbyPointsSweeper -----------------------------------------------------------------------------
NearbyPointsSweeper::NearbyPointsSweeper(double eps) : m_eps(eps), m_heps(std::max(eps * 0.5, 0.0))
{
}
void NearbyPointsSweeper::Add(double x, double y, size_t index, uint8_t priority)
{
m_events.emplace_back(Event::TYPE_SEGMENT_START, y - m_heps, x, index, priority);
m_events.emplace_back(Event::TYPE_SEGMENT_END, y + m_heps, x, index, priority);
}
} // namespace m2
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