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#include "reverse_geocoder.hpp"
#include "search_string_utils.hpp"
#include "search/v2/house_to_street_table.hpp"
#include "search/v2/mwm_context.hpp"
#include "indexer/feature.hpp"
#include "indexer/feature_algo.hpp"
#include "indexer/ftypes_matcher.hpp"
#include "indexer/index.hpp"
#include "indexer/scales.hpp"
#include "base/stl_helpers.hpp"
#include "std/limits.hpp"
namespace search
{
namespace
{
size_t constexpr kSimilarityThresholdPercent = 10;
int const kQueryScale = scales::GetUpperScale();
} // namespace
// static
double const ReverseGeocoder::kLookupRadiusM = 500.0;
ReverseGeocoder::ReverseGeocoder(Index const & index) : m_index(index) {}
void ReverseGeocoder::GetNearbyStreets(MwmSet::MwmId id, m2::PointD const & center,
vector<Street> & streets) const
{
m2::RectD const rect = GetLookupRect(center, kLookupRadiusM);
auto const addStreet = [&](FeatureType & ft)
{
if (ft.GetFeatureType() != feature::GEOM_LINE ||
!ftypes::IsStreetChecker::Instance()(ft))
{
return;
}
string name;
static int8_t const lang = StringUtf8Multilang::GetLangIndex("default");
if (!ft.GetName(lang, name))
return;
ASSERT(!name.empty(), ());
streets.push_back({ft.GetID(), feature::GetMinDistanceMeters(ft, center), name});
};
MwmSet::MwmHandle mwmHandle = m_index.GetMwmHandleById(id);
if (mwmHandle.IsAlive())
{
search::v2::MwmContext(move(mwmHandle)).ForEachFeature(rect, addStreet);
sort(streets.begin(), streets.end(), my::CompareBy(&Street::m_distanceMeters));
}
}
void ReverseGeocoder::GetNearbyStreets(FeatureType & ft, vector<Street> & streets) const
{
ASSERT(ft.GetID().IsValid(), ());
GetNearbyStreets(ft.GetID().m_mwmId, feature::GetCenter(ft), streets);
}
// static
size_t ReverseGeocoder::GetMatchedStreetIndex(string const & keyName,
vector<Street> const & streets)
{
strings::UniString const expected = strings::MakeUniString(keyName);
// Find the exact match or the best match in kSimilarityTresholdPercent limit.
size_t const count = streets.size();
size_t result = count;
size_t minPercent = kSimilarityThresholdPercent + 1;
for (size_t i = 0; i < count; ++i)
{
string key;
search::GetStreetNameAsKey(streets[i].m_name, key);
strings::UniString const actual = strings::MakeUniString(key);
size_t const editDistance =
strings::EditDistance(expected.begin(), expected.end(), actual.begin(), actual.end());
if (editDistance == 0)
return i;
if (actual.empty())
continue;
size_t const percent = editDistance * 100 / actual.size();
if (percent < minPercent)
{
result = i;
minPercent = percent;
}
}
return result;
}
void ReverseGeocoder::GetNearbyAddress(m2::PointD const & center, Address & addr) const
{
vector<Building> buildings;
GetNearbyBuildings(center, buildings);
vector<Street> streets;
unique_ptr<search::v2::HouseToStreetTable> table;
MwmSet::MwmHandle mwmHandle;
for (auto const & b : buildings)
{
if (!table || mwmHandle.GetId() != b.m_id.m_mwmId)
{
mwmHandle = m_index.GetMwmHandleById(b.m_id.m_mwmId);
if (!mwmHandle.IsAlive())
continue;
table = search::v2::HouseToStreetTable::Load(*mwmHandle.GetValue<MwmValue>());
}
GetNearbyStreets(b.m_id.m_mwmId, b.m_center, streets);
uint32_t ind;
if (table->Get(b.m_id.m_index, ind) && ind < streets.size())
{
addr.m_building = b;
addr.m_street = streets[ind];
return;
}
}
}
pair<vector<ReverseGeocoder::Street>, uint32_t>
ReverseGeocoder::GetNearbyFeatureStreets(FeatureType const & feature) const
{
pair<vector<ReverseGeocoder::Street>, uint32_t> result;
auto & streetIndex = result.second;
streetIndex = numeric_limits<uint32_t>::max();
FeatureID const fid = feature.GetID();
MwmSet::MwmHandle const mwmHandle = m_index.GetMwmHandleById(fid.m_mwmId);
if (!mwmHandle.IsAlive())
{
LOG(LWARNING, ("MWM for", feature, "is dead"));
return result;
}
auto & streets = result.first;
GetNearbyStreets(const_cast<FeatureType &>(feature), streets);
unique_ptr<search::v2::HouseToStreetTable> const table =
search::v2::HouseToStreetTable::Load(*mwmHandle.GetValue<MwmValue>());
if (table->Get(fid.m_index, streetIndex) && streetIndex >= streets.size())
LOG(LWARNING, ("Out of bound index", streetIndex, "for", feature));
return result;
}
void ReverseGeocoder::GetNearbyBuildings(m2::PointD const & center, vector<Building> & buildings) const
{
m2::RectD const rect = GetLookupRect(center, kLookupRadiusM);
auto const addBuilding = [&](FeatureType const & ft)
{
if (!ftypes::IsBuildingChecker::Instance()(ft))
return;
// Skip empty house numbers.
string const number = ft.GetHouseNumber();
if (number.empty())
return;
buildings.push_back({ft.GetID(), feature::GetMinDistanceMeters(ft, center),
number, feature::GetCenter(ft)});
};
m_index.ForEachInRect(addBuilding, rect, kQueryScale);
sort(buildings.begin(), buildings.end(), my::CompareBy(&Building::m_distanceMeters));
}
// static
m2::RectD ReverseGeocoder::GetLookupRect(m2::PointD const & center, double radiusM)
{
return MercatorBounds::RectByCenterXYAndSizeInMeters(center, radiusM);
}
} // namespace search
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