Class: QgsVectorSimplifyMethod

class qgis.core.QgsVectorSimplifyMethod

Bases: sip.wrapper

construct a default object

QgsVectorSimplifyMethod(QgsVectorSimplifyMethod)

This class contains information how to simplify geometries fetched from a vector layer

New in version 2.2: Enums

Methods

forceLocalOptimization Gets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries
maximumScale Gets the maximum scale at which the layer should be simplified
setForceLocalOptimization Sets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries
setMaximumScale Sets the maximum scale at which the layer should be simplified
setSimplifyAlgorithm Sets the local simplification algorithm of the vector layer managed
setSimplifyHints Sets the simplification hints of the vector layer managed
setThreshold Sets the simplification threshold of the vector layer managed
setTolerance Sets the tolerance of simplification in map units.
simplifyAlgorithm Gets the local simplification algorithm of the vector layer managed
simplifyHints Gets the simplification hints of the vector layer managed
threshold Gets the simplification threshold of the vector layer managed
tolerance Gets the tolerance of simplification in map units.

Signals

Attributes

AntialiasingSimplification
Distance
FullSimplification
GeometrySimplification
NoSimplification
SnapToGrid
Visvalingam
staticMetaObject
AntialiasingSimplification = 2
Distance = 0
FullSimplification = 3
GeometrySimplification = 1
NoSimplification = 0
class SimplifyAlgorithm

Bases: int

baseClass

alias of QgsVectorSimplifyMethod

class SimplifyHint

Bases: int

baseClass

alias of QgsVectorSimplifyMethod

class SimplifyHints

Bases: sip.wrapper

QgsVectorSimplifyMethod.SimplifyHints(Union[QgsVectorSimplifyMethod.SimplifyHints, QgsVectorSimplifyMethod.SimplifyHint]) QgsVectorSimplifyMethod.SimplifyHints(QgsVectorSimplifyMethod.SimplifyHints)

baseClass

alias of QgsVectorSimplifyMethod

SnapToGrid = 1
Visvalingam = 2
forceLocalOptimization(self) → bool

Gets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries

maximumScale(self) → float

Gets the maximum scale at which the layer should be simplified

setForceLocalOptimization(self, localOptimization: bool)

Sets where the simplification executes, after fetch the geometries from provider, or when supported, in provider before fetch the geometries

setMaximumScale(self, maximumScale: float)

Sets the maximum scale at which the layer should be simplified

setSimplifyAlgorithm(self, simplifyAlgorithm: QgsVectorSimplifyMethod.SimplifyAlgorithm)

Sets the local simplification algorithm of the vector layer managed

setSimplifyHints(self, simplifyHints: Union[QgsVectorSimplifyMethod.SimplifyHints, QgsVectorSimplifyMethod.SimplifyHint])

Sets the simplification hints of the vector layer managed

setThreshold(self, threshold: float)

Sets the simplification threshold of the vector layer managed

setTolerance(self, tolerance: float)

Sets the tolerance of simplification in map units. Represents the maximum distance in map units between two coordinates which can be considered equal

simplifyAlgorithm(self) → QgsVectorSimplifyMethod.SimplifyAlgorithm

Gets the local simplification algorithm of the vector layer managed

simplifyHints(self) → QgsVectorSimplifyMethod.SimplifyHints

Gets the simplification hints of the vector layer managed

staticMetaObject = <PyQt5.QtCore.QMetaObject object>
threshold(self) → float

Gets the simplification threshold of the vector layer managed

tolerance(self) → float

Gets the tolerance of simplification in map units. Represents the maximum distance in map units between two coordinates which can be considered equal