BG_geometry_collection Class Reference

A utility class to flatten any hierarchy of geometry collection into one with no nested geometry collections. More...

#include <item_geofunc.h>

Public Types
typedef std::vector< Geometry * >	Geometry_list

Public Member Functions
	BG_geometry_collection ()
bool	is_comp_no_overlapped () const
void	set_comp_no_overlapped (bool b)
gis::srid_t	get_srid () const
void	set_srid (gis::srid_t srid)
bool	fill (const Geometry *geo, bool break_multi_geom=false)
const Geometry_list &	get_geometries () const
Geometry_list &	get_geometries ()
bool	all_isolated () const
size_t	num_isolated () const

Private Member Functions
bool	store_geometry (const Geometry *geo, bool break_multi_geom)
	Store a Geometry object into this collection. More...
Geometry *	store (const Geometry *geo)
	Store a geometry of GEOMETRY format into this collection. More...

Private Attributes
bool	comp_no_overlapped
gis::srid_t	m_srid
size_t	m_num_isolated
std::vector< Geometry * >	m_geos
Inplace_vector< Geometry_buffer >	m_geobufs
Inplace_vector< String >	m_geosdata

Detailed Description

A utility class to flatten any hierarchy of geometry collection into one with no nested geometry collections.

All components are stored separately and all their data stored in this class, in order to easily manipulate them.

Member Typedef Documentation

Geometry_list

typedef std::vector<Geometry *> BG_geometry_collection::Geometry_list

Constructor & Destructor Documentation

BG_geometry_collection()

BG_geometry_collection::BG_geometry_collection

(

)

Member Function Documentation

all_isolated()

bool BG_geometry_collection::all_isolated ( ) const

inline

fill()

bool BG_geometry_collection::fill ( const Geometry *  geo, bool  break_multi_geom = false  )

inline

get_geometries() [1/2]

Geometry_list & BG_geometry_collection::get_geometries ( )

inline

get_geometries() [2/2]

const Geometry_list & BG_geometry_collection::get_geometries ( ) const

inline

get_srid()

gis::srid_t BG_geometry_collection::get_srid ( ) const

inline

is_comp_no_overlapped()

bool BG_geometry_collection::is_comp_no_overlapped ( ) const

inline

num_isolated()

size_t BG_geometry_collection::num_isolated ( ) const

inline

set_comp_no_overlapped()

void BG_geometry_collection::set_comp_no_overlapped ( bool  b )

inline

set_srid()

void BG_geometry_collection::set_srid ( gis::srid_t  srid )

inline

store()

Geometry * BG_geometry_collection::store ( const Geometry *  geo )

private

Store a geometry of GEOMETRY format into this collection.

Parameters

geo	a geometry object whose data of GEOMETRY format is to be duplicated and stored into this collection. It's not a geometry collection.

Returns

a duplicated Geometry object created from geo.

store_geometry()

bool BG_geometry_collection::store_geometry ( const Geometry *  geo, bool  break_multi_geom  )

private

Store a Geometry object into this collection.

If it's a geometry collection, flatten it and store its components into this collection, so that no component is a geometry collection.

Parameters

geo	The Geometry object to put into this collection. We duplicate geo's data rather than directly using it.
break_multi_geom	whether break a multipoint or multilinestring or multipolygon so as to store its components separately into this object.

Returns

true if error occurred, false if no error(successful).

Member Data Documentation

comp_no_overlapped

bool BG_geometry_collection::comp_no_overlapped

private

m_geobufs

Inplace_vector<Geometry_buffer> BG_geometry_collection::m_geobufs

private

m_geos

std::vector<Geometry *> BG_geometry_collection::m_geos

private

m_geosdata

Inplace_vector<String> BG_geometry_collection::m_geosdata

private

m_num_isolated

size_t BG_geometry_collection::m_num_isolated

private

m_srid

gis::srid_t BG_geometry_collection::m_srid

private

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

• sql/item_geofunc.h
• sql/item_geofunc.cc