Does vector analysis using the geos library and handles import, export, exception handling*. More...

#include <qgsgeos.h>

Inheritance diagram for QgsGeos:

Public Member Functions
	QgsGeos (const QgsAbstractGeometryV2 *geometry)

	~QgsGeos ()

double	area () const override

QgsAbstractGeometryV2 *	buffer (double distance, int segments) const override

QgsAbstractGeometryV2 *	buffer (double distance, int segments, int endCapStyle, int joinStyle, double mitreLimit) const override

bool	centroid (QgsPointV2 &pt) const override

QgsAbstractGeometryV2 *	combine (const QgsAbstractGeometryV2 &geom) const override

QgsAbstractGeometryV2 *	combine (const QList< const QgsAbstractGeometryV2 * >) const override

bool	contains (const QgsAbstractGeometryV2 &geom) const override

QgsAbstractGeometryV2 *	convexHull () const override

bool	crosses (const QgsAbstractGeometryV2 &geom) const override

QgsAbstractGeometryV2 *	difference (const QgsAbstractGeometryV2 &geom) const override

bool	disjoint (const QgsAbstractGeometryV2 &geom) const override

double	distance (const QgsAbstractGeometryV2 &geom) const override

void	geometryChanged () override
	Removes caches. More...

QgsAbstractGeometryV2 *	interpolate (double distance) const override

QgsAbstractGeometryV2 *	intersection (const QgsAbstractGeometryV2 &geom) const override

bool	intersects (const QgsAbstractGeometryV2 &geom) const override

bool	isEmpty () const override

bool	isEqual (const QgsAbstractGeometryV2 &geom) const override

bool	isValid () const override

double	length () const override

QgsAbstractGeometryV2 *	offsetCurve (double distance, int segments, int joinStyle, double mitreLimit) const override

bool	overlaps (const QgsAbstractGeometryV2 &geom) const override

bool	pointOnSurface (QgsPointV2 &pt) const override

void	prepareGeometry () override

QgsAbstractGeometryV2 *	reshapeGeometry (const QgsLineStringV2 &reshapeWithLine, int *errorCode) const

QgsAbstractGeometryV2 *	simplify (double tolerance) const override

int	splitGeometry (const QgsLineStringV2 &splitLine, QList< QgsAbstractGeometryV2 * > &newGeometries, bool topological, QList< QgsPointV2 > &topologyTestPoints) const override
	Splits this geometry according to a given line. More...

QgsAbstractGeometryV2 *	symDifference (const QgsAbstractGeometryV2 &geom) const override

bool	touches (const QgsAbstractGeometryV2 &geom) const override

bool	within (const QgsAbstractGeometryV2 &geom) const override

Public Member Functions inherited from QgsGeometryEngine
	QgsGeometryEngine (const QgsAbstractGeometryV2 *geometry)

virtual	~QgsGeometryEngine ()

Static Public Member Functions
static GEOSGeometry *	asGeos (const QgsAbstractGeometryV2 *geom)

static QgsPointV2	coordSeqPoint (const GEOSCoordSequence *cs, int i, bool hasZ, bool hasM)

static QgsAbstractGeometryV2 *	fromGeos (const GEOSGeometry *geos)

static QgsPolygonV2 *	fromGeosPolygon (const GEOSGeometry *geos)

static GEOSContextHandle_t	getGEOSHandler ()

Additional Inherited Members
Protected Member Functions inherited from QgsGeometryEngine
	QgsGeometryEngine ()

Protected Attributes inherited from QgsGeometryEngine
const QgsAbstractGeometryV2 *	mGeometry

Detailed Description

Does vector analysis using the geos library and handles import, export, exception handling*.

Note: this API is not considered stable and may change for 2.12

Definition at line 29 of file qgsgeos.h.

Constructor & Destructor Documentation

QgsGeos::QgsGeos ( const QgsAbstractGeometryV2 * geometry )

Definition at line 127 of file qgsgeos.cpp.

QgsGeos::~QgsGeos ( )

Definition at line 132 of file qgsgeos.cpp.

Member Function Documentation

double QgsGeos::area ( ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 269 of file qgsgeos.cpp.

GEOSGeometry * QgsGeos::asGeos ( const QgsAbstractGeometryV2 * geom )

static

Definition at line 970 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::buffer	(	double	distance,
		int	segments
	)		const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1172 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::buffer	(	double	distance,
		int	segments,
		int	endCapStyle,
		int	joinStyle,
		double	mitreLimit
	)		const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1188 of file qgsgeos.cpp.

bool QgsGeos::centroid ( QgsPointV2 & pt ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1240 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::combine ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 177 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::combine ( const QList< const QgsAbstractGeometryV2 * > geomList ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 182 of file qgsgeos.cpp.

bool QgsGeos::contains ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 259 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::convexHull ( ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1295 of file qgsgeos.cpp.

QgsPointV2 QgsGeos::coordSeqPoint	(	const GEOSCoordSequence *	cs,
		int	i,
		bool	hasZ,
		bool	hasM
	)

static

Definition at line 933 of file qgsgeos.cpp.

bool QgsGeos::crosses ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 244 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::difference ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 172 of file qgsgeos.cpp.

bool QgsGeos::disjoint ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 264 of file qgsgeos.cpp.

double QgsGeos::distance ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 211 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::fromGeos ( const GEOSGeometry * geos )

static

Definition at line 782 of file qgsgeos.cpp.

QgsPolygonV2 * QgsGeos::fromGeosPolygon ( const GEOSGeometry * geos )

static

Definition at line 870 of file qgsgeos.cpp.

void QgsGeos::geometryChanged ( )

overridevirtual

Removes caches.

Implements QgsGeometryEngine.

Definition at line 138 of file qgsgeos.cpp.

GEOSContextHandle_t QgsGeos::getGEOSHandler ( )

static

Definition at line 2056 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::interpolate ( double distance ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1225 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::intersection ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 167 of file qgsgeos.cpp.

bool QgsGeos::intersects ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 234 of file qgsgeos.cpp.

bool QgsGeos::isEmpty ( ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1347 of file qgsgeos.cpp.

bool QgsGeos::isEqual ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1326 of file qgsgeos.cpp.

bool QgsGeos::isValid ( ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1312 of file qgsgeos.cpp.

double QgsGeos::length ( ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 286 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::offsetCurve	(	double	distance,
		int	segments,
		int	joinStyle,
		double	mitreLimit
	)		const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1502 of file qgsgeos.cpp.

bool QgsGeos::overlaps ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 254 of file qgsgeos.cpp.

bool QgsGeos::pointOnSurface ( QgsPointV2 & pt ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1266 of file qgsgeos.cpp.

void QgsGeos::prepareGeometry ( )

overridevirtual

Implements QgsGeometryEngine.

Definition at line 147 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::reshapeGeometry	(	const QgsLineStringV2 &	reshapeWithLine,
		int *	errorCode
	)		const

Definition at line 1518 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::simplify ( double tolerance ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 1210 of file qgsgeos.cpp.

int QgsGeos::splitGeometry	(	const QgsLineStringV2 &	splitLine,
		QList< QgsAbstractGeometryV2 * > &	newGeometries,
		bool	topological,
		QList< QgsPointV2 > &	topologyTestPoints
	)		const

overridevirtual

Splits this geometry according to a given line.

Parameters

	splitLine	the line that splits the geometry
[out]	newGeometries	list of new geometries that have been created with the split
	topological	true if topological editing is enabled
[out]	topologyTestPoints	points that need to be tested for topological completeness in the dataset

Returns: 0 in case of success, 1 if geometry has not been split, error else

Reimplemented from QgsGeometryEngine.

Definition at line 302 of file qgsgeos.cpp.

QgsAbstractGeometryV2 * QgsGeos::symDifference ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 206 of file qgsgeos.cpp.

bool QgsGeos::touches ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 239 of file qgsgeos.cpp.

bool QgsGeos::within ( const QgsAbstractGeometryV2 & geom ) const

overridevirtual

Implements QgsGeometryEngine.

Definition at line 249 of file qgsgeos.cpp.

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

/tmp/buildd/qgis-2.10.1+git20150822+dd4475c+20trusty/src/core/geometry/qgsgeos.h
/tmp/buildd/qgis-2.10.1+git20150822+dd4475c+20trusty/src/core/geometry/qgsgeos.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation