Determine interface for creating a graph. More...

Inheritance diagram for QgsGraphBuilderInterface:

Public Member Functions
	QgsGraphBuilderInterface (const QgsCoordinateReferenceSystem &crs, bool ctfEnabled=true, double topologyTolerance=0.0, const QString &ellipsoidID="WGS84")
	QgsGraphBuilderInterface constructor.
virtual	~QgsGraphBuilderInterface ()
	Destructor.
QgsCoordinateReferenceSystem &	destinationCrs ()
	get destinaltion Crs
bool	coordinateTransformationEnabled ()
	get coordinate transformation enabled
double	topologyTolerance ()
	get topology tolerance
QgsDistanceArea *	distanceArea ()
	get measurement tool
virtual void	addVertex (int id, const QgsPoint &pt)
	add vertex
virtual void	addArc (int pt1id, const QgsPoint &pt1, int pt2id, const QgsPoint &pt2, const QVector< QVariant > &properties)
	add arc

Detailed Description

Determine interface for creating a graph.

Contains the settings of the graph. QgsGraphBuilder and QgsGraphDirector is a Builder pattern

Constructor & Destructor Documentation

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

inline

Parameters

crs	Coordinate reference system for new graph vertex
ctfEnabled	enable coordinate transform from source graph CRS to CRS graph
topologyTolerance	sqrt distance between source point as one graph vertex
ellipsoidID	ellipsoid for edge measurement

virtual QgsGraphBuilderInterface::~QgsGraphBuilderInterface ( )

inlinevirtual

Destructor.

virtual void QgsGraphBuilderInterface::addArc	(	int	pt1id,
		const QgsPoint &	pt1,
		int	pt2id,
		const QgsPoint &	pt2,
		const QVector< QVariant > &	properties
	)

inlinevirtual

add arc

Parameters

pt1id	first vertex identificator
pt1	first vertex coordinate
pt2id	second vertex identificator
pt2	second vertex coordinate
properties	arc properties

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

Reimplemented in QgsGraphBuilder.

virtual void QgsGraphBuilderInterface::addVertex	(	int	id,
		const QgsPoint &	pt
	)

inlinevirtual

add vertex

Parameters

id	vertex identifier
pt	vertex coordinate

Reimplemented in QgsGraphBuilder.

bool QgsGraphBuilderInterface::coordinateTransformationEnabled ( )

inline

get coordinate transformation enabled

QgsCoordinateReferenceSystem& QgsGraphBuilderInterface::destinationCrs ( )

inline

get destinaltion Crs

QgsDistanceArea* QgsGraphBuilderInterface::distanceArea ( )

inline

get measurement tool

double QgsGraphBuilderInterface::topologyTolerance ( )

inline

get topology tolerance

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