This class used for making the QgsGraph object. More...

#include <qgsgraphbuilder.h>

Inheritance diagram for QgsGraphBuilder:

Public Member Functions
	QgsGraphBuilder (const QgsCoordinateReferenceSystem &crs, bool otfEnabled=true, double topologyTolerance=0.0, const QString &ellipsoidID="WGS84")
	Default constructor.

	~QgsGraphBuilder () override

void	addEdge (int pt1id, const QgsPointXY &pt1, int pt2id, const QgsPointXY &pt2, const QVector< QVariant > &prop) override
	Add edge to the graph.

void	addVertex (int id, const QgsPointXY &pt) override
	Add vertex to the graph.

QgsGraph	graph () const
	Returns the generated QgsGraph.

QgsGraph *	takeGraph ()
	Takes the generated graph from the builder, resetting the builder back to its initial state ready for additional graph construction.

Public Member Functions inherited from QgsGraphBuilderInterface
	QgsGraphBuilderInterface (const QgsCoordinateReferenceSystem &crs, bool ctfEnabled=true, double topologyTolerance=0.0, const QString &ellipsoidID="WGS84")
	Default constructor.

virtual	~QgsGraphBuilderInterface ()=default

bool	coordinateTransformationEnabled () const
	Returns coordinate transformation enabled.

QgsCoordinateReferenceSystem	destinationCrs () const
	Returns destinaltion CRS.

QgsDistanceArea *	distanceArea ()
	Returns measurement tool.

double	topologyTolerance () const
	Returns topology tolerance.

Detailed Description

This class used for making the QgsGraph object.

Definition at line 35 of file qgsgraphbuilder.h.

Constructor & Destructor Documentation

◆ QgsGraphBuilder()

QgsGraphBuilder::QgsGraphBuilder	(	const QgsCoordinateReferenceSystem &	crs,
		bool	otfEnabled = `true`,
		double	topologyTolerance = `0.0`,
		const QString &	ellipsoidID = `"WGS84"`
	)

Default constructor.

Definition at line 26 of file qgsgraphbuilder.cpp.

◆ ~QgsGraphBuilder()

QgsGraphBuilder::~QgsGraphBuilder ( )

overridedefault

Member Function Documentation

◆ addEdge()

void QgsGraphBuilder::addEdge	(	int	pt1id,
		const QgsPointXY &	pt1,
		int	pt2id,
		const QgsPointXY &	pt2,
		const QVector< QVariant > &	strategies
	)

overridevirtual

Add edge to the graph.

Parameters

pt1id	first vertex identificator
pt1	first vertex coordinates
pt2id	second vertex identificator
pt2	second vertex coordinates
strategies	optimization strategies

Note: pt1id, pt1 and pt2id, pt2 is a redundant interface. You can use vertex coordinates or their identificators.

Reimplemented from QgsGraphBuilderInterface.

Definition at line 39 of file qgsgraphbuilder.cpp.

◆ addVertex()

void QgsGraphBuilder::addVertex	(	int	id,
		const QgsPointXY &	pt
	)

overridevirtual

Add vertex to the graph.

Parameters

id	vertex identifier
pt	vertex coordinates

Note: id and pt are redundant. You can use pt or id to identify the vertex

Reimplemented from QgsGraphBuilderInterface.

Definition at line 34 of file qgsgraphbuilder.cpp.

◆ graph()

QgsGraph QgsGraphBuilder::graph ( ) const

Returns the generated QgsGraph.

The builder is left in its current state.

See also: takeGraph()

Definition at line 44 of file qgsgraphbuilder.cpp.

◆ takeGraph()

QgsGraph * QgsGraphBuilder::takeGraph ( )

Takes the generated graph from the builder, resetting the builder back to its initial state ready for additional graph construction.

Since: QGIS 3.22

Definition at line 49 of file qgsgraphbuilder.cpp.

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

/build/qgis-3.40.0+99sid/src/analysis/network/qgsgraphbuilder.h
/build/qgis-3.40.0+99sid/src/analysis/network/qgsgraphbuilder.cpp

Public Member Functions