item_geofunc_internal.h File Reference

This file defines common build blocks of GIS functions. More...

#include <stddef.h>
#include <boost/concept/usage.hpp>
#include <boost/geometry/core/cs.hpp>
#include <boost/geometry/core/tags.hpp>
#include <boost/geometry/geometries/box.hpp>
#include <boost/geometry/geometries/point.hpp>
#include <boost/geometry/geometries/segment.hpp>
#include <boost/geometry/index/rtree.hpp>
#include <cmath>
#include <utility>
#include <vector>
#include "sql/gis/srid.h"
#include "sql/gis_bg_traits.h"
#include "sql/item_geofunc.h"
#include "sql/spatial.h"

Go to the source code of this file.

Classes
class	BG_models< CoordinateSystemType >
	A wrapper and interface for all geometry types used here. More...
struct	bgpt_lt
	Less than comparator for points used by BG. More...
struct	bgpt_eq
	Equals comparator for points used by BG. More...

Macros
#define	GIS_ZERO   0.00000000001

Typedefs
typedef bgm::point< double, 2, bgcs::cartesian >	BG_point
typedef bgm::box< BG_point >	BG_box
typedef std::pair< BG_box, size_t >	BG_rtree_entry
typedef std::vector< BG_rtree_entry >	BG_rtree_entries
typedef bgi::rtree< BG_rtree_entry, bgi::quadratic< 64 > >	Rtree_index
typedef std::vector< BG_rtree_entry >	Rtree_result

Functions
void	make_bg_box (const Geometry *g, BG_box *box)
bool	is_box_valid (const BG_box &box)
void	make_rtree (const BG_geometry_collection::Geometry_list &gl, Rtree_index *rtree)
	Build an rtree set using a geometry collection. More...
template<typename MultiGeometry >
void	make_rtree_bggeom (const MultiGeometry &mg, Rtree_index *rtree)
	Build an rtree set using array of Boost.Geometry objects, which are components of a multi geometry. More...
Gis_geometry_collection *	empty_collection (String *str, gis::srid_t srid)
bool	is_empty_geocollection (const Geometry *g)
bool	is_empty_geocollection (const String &wkbres)
template<typename BG_geotype >
bool	post_fix_result (BG_result_buf_mgr *resbuf_mgr, BG_geotype &geout, String *res)
	For every Geometry object write-accessed by a boost geometry function, i.e. More...

Detailed Description

This file defines common build blocks of GIS functions.

Macro Definition Documentation

GIS_ZERO

#define GIS_ZERO   0.00000000001

Typedef Documentation

BG_box

typedef bgm::box<BG_point> BG_box

BG_point

typedef bgm::point<double, 2, bgcs::cartesian> BG_point

BG_rtree_entries

typedef std::vector<BG_rtree_entry> BG_rtree_entries

BG_rtree_entry

typedef std::pair<BG_box, size_t> BG_rtree_entry

Rtree_index

typedef bgi::rtree<BG_rtree_entry, bgi::quadratic<64> > Rtree_index

Rtree_result

typedef std::vector<BG_rtree_entry> Rtree_result

Function Documentation

empty_collection()

Gis_geometry_collection * empty_collection ( String *  str, gis::srid_t  srid  )

inline

is_box_valid()

bool is_box_valid ( const BG_box &  box )

inline

is_empty_geocollection() [1/2]

bool is_empty_geocollection

(

const Geometry *

g

)

is_empty_geocollection() [2/2]

bool is_empty_geocollection

(

const String &

wkbres

)

make_bg_box()

void make_bg_box ( const Geometry *  g, BG_box *  box  )

inline

make_rtree()

void make_rtree	(	const BG_geometry_collection::Geometry_list &	gl,
		Rtree_index *	rtree
	)

Build an rtree set using a geometry collection.

Parameters

	gl	geometry object pointers container.
[out]	rtree	entries which can be used to build an rtree.

make_rtree_bggeom()

template<typename MultiGeometry >

void make_rtree_bggeom	(	const MultiGeometry &	mg,
		Rtree_index *	rtree
	)

Build an rtree set using array of Boost.Geometry objects, which are components of a multi geometry.

Parameters

mg	the multi geometry.
rtree	the rtree to build.

post_fix_result()

template<typename BG_geotype >

bool post_fix_result	(	BG_result_buf_mgr *	resbuf_mgr,
		BG_geotype &	geout,
		String *	res
	)

For every Geometry object write-accessed by a boost geometry function, i.e.

those passed as out parameter into set operation functions, call this function before using the result object's data.

Parameters

	resbuf_mgr	Tracks the result buffer
[in,out]	geout	Geometry object
[in,out]	res	GEOMETRY string.

Returns

true if an error occurred or if the geometry is an empty collection; false if no error occurred.