Class: QgsSingleGeometryCheck

Base class for geometry checks for a single geometry without any context of the layer or other layers in the project. Classic examples are validity checks like self-intersection.

Subclasses need to implement the processGeometry method.

Added in version 3.4.

Class Hierarchy

Base classes

QgsGeometryCheck

This class implements a geometry check.

Methods

processGeometry

Check the geometry for errors.

class qgis.analysis.QgsSingleGeometryCheck

Bases: QgsGeometryCheck

__init__(context: QgsGeometryCheckContext | None, configuration: Dict[str, Any])

Creates a new single geometry check.

Parameters:

• context (Optional[QgsGeometryCheckContext])

• configuration (Dict[str, Any])

__init__(a0: QgsSingleGeometryCheck)

Parameters:

a0 (QgsSingleGeometryCheck)

processGeometry(self, geometry: QgsGeometry) → List[QgsSingleGeometryCheckError]

Check the geometry for errors. It may make use of configuration options.

Returns a list of QgsSingleGeometryCheckErrors, ownership is transferred to the caller. An empty list is returned for geometries without errors.

Added in version 3.4.

Parameters:

geometry (QgsGeometry)

Return type:

List[QgsSingleGeometryCheckError]