#include <AreaAreaIndex.h>

Public Member Functions
	AreaAreaIndex (size_t cacheSize)

void	Close ()

void	DumpStatistics ()

void	FlushCache ()

bool	GetAreasInArea (const TypeConfig &typeConfig, const GeoBox &boundingBox, size_t maxLevel, const TypeInfoSet &types, std::vector< DataBlockSpan > &spans, TypeInfoSet &loadedTypes) const
	Returns references in form of DataBlockSpans to all areas within the given area,. More...

std::string	GetFilename () const

bool	IsOpen () const

bool	Open (const std::string &path, bool memoryMappedData)

virtual	~AreaAreaIndex ()

Static Public Attributes
static const char *const	AREA_AREA_IDX ="areaarea.idx"

Detailed Description

AreaAreaIndex allows you to find areas in a given region.

For areas result can be limited by the maximum level (which in turn defines the minimum size of the resulting areas since an area in a given level must fit into the cell size (but can cross cell borders)) and the maximum number of areas found.

Internally the index is implemented as quadtree. As a result each index entry has 4 children (besides entries in the lowest level).

Constructor & Destructor Documentation

◆ AreaAreaIndex()

osmscout::AreaAreaIndex::AreaAreaIndex ( size_t cacheSize )

explicit

◆ ~AreaAreaIndex()

osmscout::AreaAreaIndex::~AreaAreaIndex ( )

virtual

References Close().

Member Function Documentation

◆ Close()

void osmscout::AreaAreaIndex::Close ( )

References osmscout::FileScanner::Close(), osmscout::FileScanner::CloseFailsafe(), osmscout::Log::Error(), osmscout::Cache< K, V, IK >::Flush(), osmscout::IOException::GetDescription(), osmscout::FileScanner::IsOpen(), and osmscout::log.

Referenced by ~AreaAreaIndex().

◆ DumpStatistics()

void osmscout::AreaAreaIndex::DumpStatistics ( )

References AREA_AREA_IDX, and osmscout::Cache< K, V, IK >::DumpStatistics().

◆ FlushCache()

void osmscout::AreaAreaIndex::FlushCache ( )

References osmscout::Cache< K, V, IK >::Flush().

◆ GetAreasInArea()

bool osmscout::AreaAreaIndex::GetAreasInArea	(	const TypeConfig &	typeConfig,
		const GeoBox &	boundingBox,
		size_t	maxLevel,
		const TypeInfoSet &	types,
		std::vector< DataBlockSpan > &	spans,
		TypeInfoSet &	loadedTypes
	)		const

Returns references in form of DataBlockSpans to all areas within the given area,.

Parameters

typeConfig	Type configuration
maxLevel	The maximum index level to load areas from
types	Set of types to load data for
maxCount	Maximum number of elements to return
spans	List of DataBlockSpans referencing the the found areas

References osmscout::cellDimension, osmscout::TypeInfoSet::Clear(), osmscout::Log::Error(), osmscout::IOException::GetDescription(), osmscout::GeoBox::GetDisplayText(), osmscout::FileScanner::GetFilename(), osmscout::GeoBox::GetMaxLat(), osmscout::GeoBox::GetMaxLon(), osmscout::StopClock::GetMilliseconds(), osmscout::GeoBox::GetMinLat(), osmscout::GeoBox::GetMinLon(), osmscout::log, osmscout::StopClock::ResultString(), osmscout::StopClock::Stop(), and osmscout::Log::Warn().

◆ GetFilename()

std::string osmscout::AreaAreaIndex::GetFilename ( ) const

inline

◆ IsOpen()

bool osmscout::AreaAreaIndex::IsOpen ( ) const

inline

◆ Open()

bool osmscout::AreaAreaIndex::Open	(	const std::string &	path,
		bool	memoryMappedData
	)

References osmscout::AppendFileToDir(), AREA_AREA_IDX, osmscout::Log::Error(), osmscout::FileScanner::FastRandom, osmscout::IOException::GetDescription(), osmscout::FileScanner::HasError(), osmscout::log, osmscout::FileScanner::Open(), osmscout::FileScanner::ReadFileOffset(), and osmscout::FileScanner::ReadUInt32Number().

Member Data Documentation

◆ AREA_AREA_IDX

const char *const osmscout::AreaAreaIndex::AREA_AREA_IDX ="areaarea.idx"

static

Referenced by DumpStatistics(), and Open().

The documentation for this class was generated from the following files:

Public Member Functions

Static Public Attributes