#include <qgspointlocator.h>

Public Member Functions
	Match ()=default
	construct invalid match

	Match (QgsPointLocator::Type t, QgsVectorLayer vl, QgsFeatureId fid, double dist, const QgsPointXY &pt, int vertexIndex=0, QgsPointXY edgePoints=nullptr)

double	distance () const
	for vertex / edge match units depending on what class returns it (geom.cache: layer units, map canvas snapper: dest crs units)

void	edgePoints (QgsPointXY &pt1, QgsPointXY &pt2) const
	Only for a valid edge match - obtain endpoints of the edge.

QgsFeatureId	featureId () const
	The id of the feature to which the snapped geometry belongs.

bool	hasArea () const
	Returns `true` if the Match is an area.

bool	hasCentroid () const
	Returns `true` if the Match is a centroid.

bool	hasEdge () const
	Returns `true` if the Match is an edge.

bool	hasLineEndpoint () const
	Returns `true` if the Match is a line endpoint (start or end vertex).

bool	hasMiddleSegment () const
	Returns `true` if the Match is the middle of a segment.

bool	hasVertex () const
	Returns `true` if the Match is a vertex.

QgsPoint	interpolatedPoint (const QgsCoordinateReferenceSystem &destinationCrs=QgsCoordinateReferenceSystem()) const
	Convenient method to return a point on an edge with linear interpolation of the Z value.

bool	isValid () const

QgsVectorLayer *	layer () const
	The vector layer where the snap occurred.

bool	operator== (const QgsPointLocator::Match &other) const

QgsPointXY	point () const
	for vertex / edge match coords depending on what class returns it (geom.cache: layer coords, map canvas snapper: dest coords)

QgsPointLocator::Type	type () const

int	vertexIndex () const
	for vertex / edge match (first vertex of the edge)

Protected Attributes
QgsPointXY	mCentroid

double	mDist = 0

QgsPointXY	mEdgePoints [2]

QgsFeatureId	mFid = 0

QgsVectorLayer *	mLayer = nullptr

QgsPointXY	mMiddleOfSegment

QgsPointXY	mPoint

Type	mType = Invalid

int	mVertexIndex = 0

Detailed Description

Definition at line 182 of file qgspointlocator.h.

Constructor & Destructor Documentation

◆ Match() [1/2]

QgsPointLocator::Match::Match ( )

default

construct invalid match

◆ Match() [2/2]

QgsPointLocator::Match::Match	(	QgsPointLocator::Type	t,
		QgsVectorLayer *	vl,
		QgsFeatureId	fid,
		double	dist,
		const QgsPointXY &	pt,
		int	vertexIndex = `0`,
		QgsPointXY *	edgePoints = `nullptr`
	)

inline

Definition at line 187 of file qgspointlocator.h.

Member Function Documentation

◆ distance()

double QgsPointLocator::Match::distance ( ) const

inline

for vertex / edge match units depending on what class returns it (geom.cache: layer units, map canvas snapper: dest crs units)

Definition at line 227 of file qgspointlocator.h.

◆ edgePoints()

void QgsPointLocator::Match::edgePoints	(	QgsPointXY &	pt1,
		QgsPointXY &	pt2
	)		const

inline

Only for a valid edge match - obtain endpoints of the edge.

Definition at line 250 of file qgspointlocator.h.

◆ featureId()

QgsFeatureId QgsPointLocator::Match::featureId ( ) const

inline

The id of the feature to which the snapped geometry belongs.

Definition at line 247 of file qgspointlocator.h.

◆ hasArea()

bool QgsPointLocator::Match::hasArea ( ) const

inline

Returns true if the Match is an area.

Definition at line 212 of file qgspointlocator.h.

◆ hasCentroid()

bool QgsPointLocator::Match::hasCentroid ( ) const

inline

Returns true if the Match is a centroid.

Definition at line 210 of file qgspointlocator.h.

◆ hasEdge()

bool QgsPointLocator::Match::hasEdge ( ) const

inline

Returns true if the Match is an edge.

Definition at line 208 of file qgspointlocator.h.

◆ hasLineEndpoint()

bool QgsPointLocator::Match::hasLineEndpoint ( ) const

inline

Returns true if the Match is a line endpoint (start or end vertex).

Since: QGIS 3.20

Definition at line 221 of file qgspointlocator.h.

◆ hasMiddleSegment()

bool QgsPointLocator::Match::hasMiddleSegment ( ) const

inline

Returns true if the Match is the middle of a segment.

Definition at line 214 of file qgspointlocator.h.

◆ hasVertex()

bool QgsPointLocator::Match::hasVertex ( ) const

inline

Returns true if the Match is a vertex.

Definition at line 206 of file qgspointlocator.h.

◆ interpolatedPoint()

QgsPoint QgsPointLocator::Match::interpolatedPoint ( const QgsCoordinateReferenceSystem & destinationCrs = QgsCoordinateReferenceSystem() ) const

inline

Convenient method to return a point on an edge with linear interpolation of the Z value.

The parameter destinationCrs depends of where the instance of this Match is created (geom.cache: layer CRS, map canvas snapper: dest CRS)

Since: QGIS 3.10

Definition at line 262 of file qgspointlocator.h.

◆ isValid()

bool QgsPointLocator::Match::isValid ( ) const

inline

Definition at line 204 of file qgspointlocator.h.

◆ layer()

QgsVectorLayer * QgsPointLocator::Match::layer ( ) const

inline

The vector layer where the snap occurred.

Will be nullptr if the snap happened on an intersection.

Definition at line 242 of file qgspointlocator.h.

◆ operator==()

bool QgsPointLocator::Match::operator== ( const QgsPointLocator::Match & other ) const

inline

Definition at line 316 of file qgspointlocator.h.

◆ point()

QgsPointXY QgsPointLocator::Match::point ( ) const

inline

for vertex / edge match coords depending on what class returns it (geom.cache: layer coords, map canvas snapper: dest coords)

Definition at line 233 of file qgspointlocator.h.

◆ type()

QgsPointLocator::Type QgsPointLocator::Match::type ( ) const

inline

Definition at line 202 of file qgspointlocator.h.

◆ vertexIndex()

int QgsPointLocator::Match::vertexIndex ( ) const

inline

for vertex / edge match (first vertex of the edge)

Definition at line 236 of file qgspointlocator.h.

Member Data Documentation

◆ mCentroid

QgsPointXY QgsPointLocator::Match::mCentroid

protected

Definition at line 338 of file qgspointlocator.h.

◆ mDist

double QgsPointLocator::Match::mDist = 0

protected

Definition at line 332 of file qgspointlocator.h.

◆ mEdgePoints

QgsPointXY QgsPointLocator::Match::mEdgePoints[2]

protected

Definition at line 337 of file qgspointlocator.h.

◆ mFid

QgsFeatureId QgsPointLocator::Match::mFid = 0

protected

Definition at line 335 of file qgspointlocator.h.

◆ mLayer

QgsVectorLayer* QgsPointLocator::Match::mLayer = nullptr

protected

Definition at line 334 of file qgspointlocator.h.

◆ mMiddleOfSegment

QgsPointXY QgsPointLocator::Match::mMiddleOfSegment

protected

Definition at line 339 of file qgspointlocator.h.

◆ mPoint

QgsPointXY QgsPointLocator::Match::mPoint

protected

Definition at line 333 of file qgspointlocator.h.

◆ mType

Type QgsPointLocator::Match::mType = Invalid

protected

Definition at line 331 of file qgspointlocator.h.

◆ mVertexIndex

int QgsPointLocator::Match::mVertexIndex = 0

protected

Definition at line 336 of file qgspointlocator.h.

The documentation for this struct was generated from the following file:

/build/qgis-3.40.0+99sid/src/core/qgspointlocator.h

Public Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ Match() [1/2]

◆ Match() [2/2]

Member Function Documentation

◆ distance()

◆ edgePoints()

◆ featureId()

◆ hasArea()

◆ hasCentroid()

◆ hasEdge()

◆ hasLineEndpoint()

◆ hasMiddleSegment()

◆ hasVertex()

◆ interpolatedPoint()

◆ isValid()

◆ layer()

◆ operator==()

◆ point()

◆ type()

◆ vertexIndex()

Member Data Documentation

◆ mCentroid

◆ mDist

◆ mEdgePoints

◆ mFid

◆ mLayer

◆ mMiddleOfSegment

◆ mPoint

◆ mType

◆ mVertexIndex