Method FillJunctionPointCandidates

tools/openlr/candidate_points_getter.cpp:21–51

namespace openlr
{
void CandidatePointsGetter::FillJunctionPointCandidates(m2::PointD const & p, std::vector<m2::PointD> & candidates)
{
  // TODO(mgsergio): Get optimal value using experiments on a sample.
  // Or start with small radius and scale it up when there are too few points.
  size_t const kRectSideMeters = 110;

  auto const rect = mercator::RectByCenterXYAndSizeInMeters(p, kRectSideMeters);
  auto const selectCandidates = [&rect, &candidates](FeatureType & ft)
  {
    ft.ParseGeometry(FeatureType::BEST_GEOMETRY);
    ft.ForEachPoint([&rect, &candidates](m2::PointD const & candidate)
    {
      if (rect.IsPointInside(candidate))
        candidates.emplace_back(candidate);
    }, scales::GetUpperScale());
  };

  m_dataSource.ForEachInRect(selectCandidates, rect, scales::GetUpperScale());

  // TODO: Move this to a separate stage.
  // 1030292476 Does not match. Some problem occur with points.
  // Either points duplicate or something alike. Check this
  // later. The idea to fix this was to move SortUnique to the stage
  // after enriching with projections.

  base::SortUnique(candidates, [&p](m2::PointD const & a, m2::PointD const & b)
  { return mercator::DistanceOnEarth(a, p) < mercator::DistanceOnEarth(b, p); },
                   [](m2::PointD const & a, m2::PointD const & b) { return a == b; });

  candidates.resize(std::min(m_maxJunctionCandidates, candidates.size()));
}

void CandidatePointsGetter::EnrichWithProjectionPoints(m2::PointD const & p, std::vector<m2::PointD> & candidates)
{