QgsGraph class

Mathematical graph representation.

Contents

Constructors, destructors, conversion operators

QgsGraph() defaulted
Constructor for QgsGraph.

Public functions

auto addEdge(int fromVertexIdx, int toVertexIdx, const QVector<QVariant>& strategies) -> int
Add an edge to the graph, going from the fromVertexIdx to toVertexIdx.
auto addVertex(const QgsPointXY& pt) -> int
Add a vertex to the graph.
auto edge(int idx) const -> const QgsGraphEdge&
Returns edge at given index.
auto edgeCount() const -> int
Returns number of graph edges.
auto findVertex(const QgsPointXY& pt) const -> int
Find vertex by associated point.
auto vertex(int idx) const -> const QgsGraphVertex&
Returns vertex at given index.
auto vertexCount() const -> int
Returns number of graph vertices.

Function documentation

int QgsGraph::findVertex(const QgsPointXY& pt) const

Find vertex by associated point.

Returns vertex index