search/geometry_utils.cpp


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#include "geometry_utils.hpp"

#include "../indexer/mercator.hpp"

#include "../geometry/distance_on_sphere.hpp"


namespace search
{

double PointDistance(m2::PointD const & a, m2::PointD const & b)
{
  return ms::DistanceOnEarth(MercatorBounds::YToLat(a.y), MercatorBounds::XToLon(a.x),
                             MercatorBounds::YToLat(b.y), MercatorBounds::XToLon(b.x));
}

uint8_t ViewportDistance(m2::RectD const & viewport, m2::PointD const & p)
{
  if (viewport.IsPointInside(p))
    return 0;

  m2::RectD r = viewport;
  r.Scale(3);
  if (r.IsPointInside(p))
    return 1;

  r = viewport;
  r.Scale(5);
  if (r.IsPointInside(p))
    return 2;

  return 3;
}

}