QgsGraphBuilder class

This class used for making the QgsGraph object.

Contents

Base classes

class QgsGraphBuilderInterface
Determine interface for creating a graph.

Constructors, destructors, conversion operators

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

Public functions

void addEdge(int pt1id, const QgsPointXY& pt1, int pt2id, const QgsPointXY& pt2, const QVector<QVariant>& strategies) override
Add edge to the graph.
void addVertex(int id, const QgsPointXY& pt) override
Add vertex to the graph.
auto graph() -> QgsGraph*
Returns generated QgsGraph.

Function documentation

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

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

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

Add vertex to the graph.

Parameters
id vertex identifier
pt vertex coordinates