QgsLabelThinningSettings Class Reference

Contains settings related to how the label engine removes candidate label positions and reduces the number of displayed labels. More...

#include <qgslabelthinningsettings.h>

Public Member Functions
bool	limitNumberOfLabelsEnabled () const
	Returns true if the number of labels drawn for the layer should be limited. More...
int	maximumNumberLabels () const
	Returns the maximum number of labels which should be drawn for this layer. More...
double	minimumFeatureSize () const
	Returns the minimum feature size (in millimeters) for a feature to be labelled. More...
void	setLimitNumberLabelsEnabled (bool enabled)
	Sets whether the the number of labels drawn for the layer should be limited. More...
void	setMaximumNumberLabels (int number)
	Sets the maximum number of labels which should be drawn for this layer. More...
void	setMinimumFeatureSize (double size)
	Sets the minimum feature size (in millimeters) for a feature to be labelled. More...
void	updateDataDefinedProperties (const QgsPropertyCollection &properties, QgsExpressionContext &context)
	Updates the thinning settings to respect any data defined properties set within the specified properties collection. More...

Detailed Description

Contains settings related to how the label engine removes candidate label positions and reduces the number of displayed labels.

Since

QGIS 3.12

Definition at line 34 of file qgslabelthinningsettings.h.

Member Function Documentation

limitNumberOfLabelsEnabled()

bool QgsLabelThinningSettings::limitNumberOfLabelsEnabled ( ) const

inline

Returns true if the number of labels drawn for the layer should be limited.

See also

maximumNumberLabels()

setLimitNumberLabelsEnabled()

Definition at line 43 of file qgslabelthinningsettings.h.

maximumNumberLabels()

int QgsLabelThinningSettings::maximumNumberLabels ( ) const

inline

Returns the maximum number of labels which should be drawn for this layer.

This only has an effect if limitNumberOfLabelsEnabled() is true.

See also

limitNumberOfLabelsEnabled()

setMaximumNumberLabels()

Definition at line 58 of file qgslabelthinningsettings.h.

minimumFeatureSize()

double QgsLabelThinningSettings::minimumFeatureSize ( ) const

inline

Returns the minimum feature size (in millimeters) for a feature to be labelled.

See also

setMinimumFeatureSize()

Definition at line 72 of file qgslabelthinningsettings.h.

setLimitNumberLabelsEnabled()

void QgsLabelThinningSettings::setLimitNumberLabelsEnabled ( bool  enabled )

inline

Sets whether the the number of labels drawn for the layer should be limited.

See also

setMaximumNumberLabels()

limitNumberOfLabelsEnabled()

Definition at line 50 of file qgslabelthinningsettings.h.

setMaximumNumberLabels()

void QgsLabelThinningSettings::setMaximumNumberLabels ( int  number )

inline

Sets the maximum number of labels which should be drawn for this layer.

This only has an effect if limitNumberOfLabelsEnabled() is true.

See also

setLimitNumberLabelsEnabled()

maximumNumberLabels()

Definition at line 66 of file qgslabelthinningsettings.h.

setMinimumFeatureSize()

void QgsLabelThinningSettings::setMinimumFeatureSize ( double  size )

inline

Sets the minimum feature size (in millimeters) for a feature to be labelled.

See also

minimumFeatureSize()

Definition at line 78 of file qgslabelthinningsettings.h.

updateDataDefinedProperties()

void QgsLabelThinningSettings::updateDataDefinedProperties	(	const QgsPropertyCollection &	properties,
		QgsExpressionContext &	context
	)

Updates the thinning settings to respect any data defined properties set within the specified properties collection.

Definition at line 22 of file qgslabelthinningsettings.cpp.

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The documentation for this class was generated from the following files:

• /build/qgis-3.20.0+99unstable/src/core/labeling/qgslabelthinningsettings.h
• /build/qgis-3.20.0+99unstable/src/core/labeling/qgslabelthinningsettings.cpp