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#include "geometry_utils.hpp"
#include "geometry/mercator.hpp"
#include "indexer/scales.hpp"
namespace search
{
double PointDistance(m2::PointD const & a, m2::PointD const & b)
{
return MercatorBounds::DistanceOnEarth(a, b);
}
bool IsEqualMercator(m2::RectD const & r1, m2::RectD const & r2, double epsMeters)
{
double const eps = epsMeters * MercatorBounds::degreeInMetres;
return m2::IsEqual(r1, r2, eps, eps);
}
// 11.5 - lower bound for rect when we need to inflate it
// 1.5 - inflate delta for viewport scale
// 7 - query scale depth to cache viewport features
bool GetInflatedViewport(m2::RectD & viewport)
{
double level = scales::GetScaleLevelD(viewport);
if (level < 11.5)
return false;
if (level > 16.5)
level = 16.5;
viewport = scales::GetRectForLevel(level - 1.5, viewport.Center());
return true;
}
int GetQueryIndexScale(m2::RectD const & viewport)
{
return scales::GetScaleLevel(viewport) + 7;
}
} // namespace search
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