ogr_geometry.h File Reference

Simple feature geometry classes. More...

#include "cpl_conv.h"
#include "cpl_json.h"
#include "ogr_core.h"
#include "ogr_spatialref.h"
#include <memory>

Go to the source code of this file.

Classes
class	OGRRawPoint
	Simple container for a position. More...
class	IOGRGeometryVisitor
	OGRGeometry visitor interface. More...
class	OGRDefaultGeometryVisitor
	OGRGeometry visitor default implementation. More...
class	IOGRConstGeometryVisitor
	OGRGeometry visitor interface. More...
class	OGRDefaultConstGeometryVisitor
	OGRGeometry visitor default implementation. More...
class	OGRGeometry
	Abstract base class for all geometry classes. More...
class	OGRPoint
	Point class. More...
class	OGRPointIterator
	Interface for a point iterator. More...
class	OGRCurve
	Abstract curve base class for OGRLineString, OGRCircularString and OGRCompoundCurve. More...
class	OGRSimpleCurve
	Abstract curve base class for OGRLineString and OGRCircularString. More...
class	OGRLineString
	Concrete representation of a multi-vertex line. More...
class	OGRLinearRing
	Concrete representation of a closed ring. More...
class	OGRCircularString
	Concrete representation of a circular string, that is to say a curve made of one or several arc circles. More...
class	OGRCompoundCurve
	Utility class to store a collection of curves. More...
class	OGRSurface
	Abstract base class for 2 dimensional objects like polygons or curve polygons. More...
class	OGRCurvePolygon
	Concrete class representing curve polygons. More...
class	OGRPolygon
	Concrete class representing polygons. More...
class	OGRTriangle
	Triangle class. More...
class	OGRGeometryCollection
	A collection of 1 or more geometry objects. More...
class	OGRMultiSurface
	A collection of non-overlapping OGRSurface. More...
class	OGRMultiPolygon
	A collection of non-overlapping OGRPolygon. More...
class	OGRPolyhedralSurface
	PolyhedralSurface class. More...
class	OGRTriangulatedSurface
	TriangulatedSurface class. More...
class	OGRMultiPoint
	A collection of OGRPoint. More...
class	OGRMultiCurve
	A collection of OGRCurve. More...
class	OGRMultiLineString
	A collection of OGRLineString. More...
class	OGRGeometryFactory
	Create geometry objects from well known text/binary. More...

Typedefs
typedef struct GEOSGeom_t *	GEOSGeom
	GEOS geometry type.
typedef struct GEOSContextHandle_HS *	GEOSContextHandle_t
	GEOS context handle type.
typedef void	sfcgal_geometry_t
	SFCGAL geometry type.
typedef std::unique_ptr< OGRGeometry, OGRGeometryUniquePtrDeleter >	OGRGeometryUniquePtr
	Unique pointer type for OGRGeometry. More...
typedef struct _OGRPreparedGeometry	OGRPreparedGeometry
	Prepared geometry API (needs GEOS >= 3.1.0)
typedef std::unique_ptr< OGRPreparedGeometry, OGRPreparedGeometryUniquePtrDeleter >	OGRPreparedGeometryUniquePtr
	Unique pointer type for OGRPreparedGeometry. More...

Functions
OGRwkbGeometryType	OGRFromOGCGeomType (const char *pszGeomType)
	Map OGCgeometry format type to corresponding OGR constants. More...
const char *	OGRToOGCGeomType (OGRwkbGeometryType eGeomType)
	Map OGR geometry format constants to corresponding OGC geometry type. More...
int	OGRHasPreparedGeometrySupport ()
	Returns if GEOS has prepared geometry support. More...
OGRPreparedGeometry *	OGRCreatePreparedGeometry (const OGRGeometry *poGeom)
	Creates a prepared geometry. More...
void	OGRDestroyPreparedGeometry (OGRPreparedGeometry *poPreparedGeom)
	Destroys a prepared geometry. More...
int	OGRPreparedGeometryIntersects (const OGRPreparedGeometry *poPreparedGeom, const OGRGeometry *poOtherGeom)
	Returns whether a prepared geometry intersects with a geometry. More...
int	OGRPreparedGeometryContains (const OGRPreparedGeometry *poPreparedGeom, const OGRGeometry *poOtherGeom)
	Returns whether a prepared geometry contains a geometry. More...

Detailed Description

Simple feature geometry classes.

Typedef Documentation

OGRGeometryUniquePtr

typedef std::unique_ptr<OGRGeometry, OGRGeometryUniquePtrDeleter> OGRGeometryUniquePtr

Unique pointer type for OGRGeometry.

Since

GDAL 2.3

OGRPreparedGeometryUniquePtr

typedef std::unique_ptr<OGRPreparedGeometry, OGRPreparedGeometryUniquePtrDeleter> OGRPreparedGeometryUniquePtr

Unique pointer type for OGRPreparedGeometry.

Since

GDAL 2.3

Function Documentation

OGRCreatePreparedGeometry()

OGRPreparedGeometry* OGRCreatePreparedGeometry

(

const OGRGeometry *

poGeom

)

Creates a prepared geometry.

To free with OGRDestroyPreparedGeometry()

Parameters

poGeom

input geometry to prepare.

Returns

handle to a prepared geometry.

OGRDestroyPreparedGeometry()

void OGRDestroyPreparedGeometry

(

OGRPreparedGeometry *

poPreparedGeom

)

Destroys a prepared geometry.

Parameters

poPreparedGeom

preprated geometry.

OGRFromOGCGeomType()

OGRwkbGeometryType OGRFromOGCGeomType

(

const char *

pszGeomType

)

Map OGCgeometry format type to corresponding OGR constants.

Parameters

pszGeomType

POINT[ ][Z][M], LINESTRING[ ][Z][M], etc...

Returns

OGR constant.

OGRHasPreparedGeometrySupport()

int OGRHasPreparedGeometrySupport

(

)

Returns if GEOS has prepared geometry support.

Returns

TRUE or FALSE

OGRPreparedGeometryContains()

int OGRPreparedGeometryContains	(	const OGRPreparedGeometry *	poPreparedGeom,
		const OGRGeometry *	poOtherGeom
	)

Returns whether a prepared geometry contains a geometry.

Parameters

poPreparedGeom	prepared geometry.
poOtherGeom	other geometry.

Returns

TRUE or FALSE.

OGRPreparedGeometryIntersects()

int OGRPreparedGeometryIntersects	(	const OGRPreparedGeometry *	poPreparedGeom,
		const OGRGeometry *	poOtherGeom
	)

Returns whether a prepared geometry intersects with a geometry.

Parameters

poPreparedGeom	prepared geometry.
poOtherGeom	other geometry.

Returns

TRUE or FALSE.

OGRToOGCGeomType()

const char* OGRToOGCGeomType

(

OGRwkbGeometryType

eGeomType

)

Map OGR geometry format constants to corresponding OGC geometry type.

Parameters

eGeomType

OGR geometry type

Returns

string with OGC geometry type (without dimensionality)