Class: QgsVertexId

Enums

VertexType

Types of vertex.

Methods

isValid	Returns True if the vertex id is valid
partEqual	Returns True if this vertex ID belongs to the same part as another vertex ID.
ringEqual	Returns True if this vertex ID belongs to the same ring as another vertex ID (i.e. the part and ring number are equal).
vertexEqual	Returns True if this vertex ID corresponds to the same vertex as another vertex ID (i.e. the part, ring number and vertex number are equal).

Attributes

part	Part number
ring	Ring number
type	Vertex type
vertex	Vertex number

class qgis.core.QgsVertexId

Bases: object

class VertexType(*values)

Bases: IntEnum

Types of vertex.

Added in version 3.22.

• Segment: The actual start or end point of a segment

  Available as QgsVertexId.SegmentVertex in older QGIS releases.

• Curve: An intermediate point on a segment defining the curvature of the segment

  Available as QgsVertexId.CurveVertex in older QGIS releases.

isValid(self) → bool

Returns True if the vertex id is valid

Return type:

bool

isValid(self, geom: QgsAbstractGeometry | None) → bool

Returns True if this vertex ID is valid for the specified geom.

Parameters:

geom (Optional[QgsAbstractGeometry])

Return type:

bool

part: int

Part number

partEqual(self, o: QgsVertexId) → bool

Returns True if this vertex ID belongs to the same part as another vertex ID.

Parameters:

o (QgsVertexId)

Return type:

bool

ring: int

Ring number

ringEqual(self, o: QgsVertexId) → bool

Returns True if this vertex ID belongs to the same ring as another vertex ID (i.e. the part and ring number are equal).

Parameters:

o (QgsVertexId)

Return type:

bool

type: VertexType

Vertex type

vertex: int

Vertex number

vertexEqual(self, o: QgsVertexId) → bool

Returns True if this vertex ID corresponds to the same vertex as another vertex ID (i.e. the part, ring number and vertex number are equal).

Parameters:

o (QgsVertexId)

Return type:

bool