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#include "generator/borders_loader.hpp"
#include "generator/borders_generator.hpp"
#include "defines.hpp"
#include "platform/platform.hpp"
#include "storage/country_polygon.hpp"
#include "indexer/geometry_serialization.hpp"
#include "indexer/scales.hpp"
#include "indexer/mercator.hpp"
#include "geometry/simplification.hpp"
#include "geometry/distance.hpp"
#include "coding/file_container.hpp"
#include "coding/read_write_utils.hpp"
#include "coding/file_name_utils.hpp"
#include "base/logging.hpp"
#include "base/string_utils.hpp"
#include "std/fstream.hpp"
#include "std/vector.hpp"
#include "std/bind.hpp"
namespace borders
{
class PolygonLoader
{
CountryPolygons m_polygons;
m2::RectD m_rect;
CountriesContainerT & m_countries;
public:
PolygonLoader(CountriesContainerT & countries)
: m_countries(countries) {}
void operator() (string const & name, vector<m2::RegionD> const & borders)
{
if (m_polygons.m_name.empty())
m_polygons.m_name = name;
for (m2::RegionD const & border : borders)
{
m2::RectD const rect(border.GetRect());
m_rect.Add(rect);
m_polygons.m_regions.Add(border, rect);
}
}
void Finish()
{
if (!m_polygons.IsEmpty())
{
ASSERT_NOT_EQUAL ( m_rect, m2::RectD::GetEmptyRect(), () );
m_countries.Add(m_polygons, m_rect);
}
m_polygons.Clear();
m_rect.MakeEmpty();
}
};
template <class ToDo>
void ForEachCountry(string const & baseDir, ToDo & toDo)
{
string const bordersDir = baseDir + BORDERS_DIR;
CHECK(Platform::IsFileExistsByFullPath(bordersDir), ("Cannot read borders directory", bordersDir));
Platform::FilesList files;
Platform::GetFilesByExt(bordersDir, BORDERS_EXTENSION, files);
for (string file : files)
{
vector<m2::RegionD> borders;
if (osm::LoadBorders(bordersDir + file, borders))
{
my::GetNameWithoutExt(file);
toDo(file, borders);
toDo.Finish();
}
}
}
bool LoadCountriesList(string const & baseDir, CountriesContainerT & countries)
{
countries.Clear();
LOG(LINFO, ("Loading countries."));
PolygonLoader loader(countries);
ForEachCountry(baseDir, loader);
LOG(LINFO, ("Countries loaded:", countries.GetSize()));
return !countries.IsEmpty();
}
class PackedBordersGenerator
{
FilesContainerW m_writer;
vector<storage::CountryDef> m_polys;
public:
PackedBordersGenerator(string const & baseDir)
: m_writer(baseDir + PACKED_POLYGONS_FILE)
{
}
void operator() (string const & name, vector<m2::RegionD> const & borders)
{
// use index in vector as tag
FileWriter w = m_writer.GetWriter(strings::to_string(m_polys.size()));
serial::CodingParams cp;
// calc rect
m2::RectD rect;
for (m2::RegionD const & border : borders)
rect.Add(border.GetRect());
// store polygon info
m_polys.push_back(storage::CountryDef(name, rect));
// write polygons as paths
WriteVarUint(w, borders.size());
for (m2::RegionD const & border : borders)
{
typedef vector<m2::PointD> VectorT;
typedef m2::DistanceToLineSquare<m2::PointD> DistanceT;
VectorT const & in = border.Data();
VectorT out;
/// @todo Choose scale level for simplification.
double const eps = my::sq(scales::GetEpsilonForSimplify(10));
DistanceT dist;
SimplifyNearOptimal(20, in.begin(), in.end(), eps, dist,
AccumulateSkipSmallTrg<DistanceT, m2::PointD>(dist, out, eps));
serial::SaveOuterPath(out, cp, w);
}
}
void Finish() {}
void WritePolygonsInfo()
{
FileWriter w = m_writer.GetWriter(PACKED_POLYGONS_INFO_TAG);
rw::Write(w, m_polys);
}
};
void GeneratePackedBorders(string const & baseDir)
{
PackedBordersGenerator generator(baseDir);
ForEachCountry(baseDir, generator);
generator.WritePolygonsInfo();
}
} // namespace borders
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