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60 lines
1.5 KiB
C++
60 lines
1.5 KiB
C++
#pragma once
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#include "indexer/feature_altitude.hpp"
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#include "coding/memory_region.hpp"
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#include "geometry/point_with_altitude.hpp"
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#include <memory>
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#include <string>
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#include <vector>
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#include "3party/succinct/elias_fano.hpp"
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#include "3party/succinct/rs_bit_vector.hpp"
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class MwmValue;
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namespace feature
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{
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class AltitudeLoaderBase
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{
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public:
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explicit AltitudeLoaderBase(MwmValue const & mwmValue);
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/// \returns altitude of feature with |featureId|. All items of the returned vector are valid
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/// or the returned vector is empty.
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geometry::Altitudes GetAltitudes(uint32_t featureId, size_t pointCount);
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bool HasAltitudes() const;
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private:
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std::unique_ptr<CopiedMemoryRegion> m_altitudeAvailabilityRegion;
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std::unique_ptr<CopiedMemoryRegion> m_featureTableRegion;
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succinct::rs_bit_vector m_altitudeAvailability;
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succinct::elias_fano m_featureTable;
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std::unique_ptr<FilesContainerR::TReader> m_reader;
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AltitudeHeader m_header;
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std::string m_countryFileName;
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};
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class AltitudeLoaderCached : public AltitudeLoaderBase
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{
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public:
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explicit AltitudeLoaderCached(MwmValue const & mwmValue)
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: AltitudeLoaderBase(mwmValue)
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{
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}
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/// \returns altitude of feature with |featureId|. All items of the returned vector are valid
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/// or the returned vector is empty.
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geometry::Altitudes const & GetAltitudes(uint32_t featureId, size_t pointCount);
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void ClearCache() { m_cache.clear(); }
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private:
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std::map<uint32_t, geometry::Altitudes> m_cache;
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};
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} // namespace feature
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