Stores the settings for rendering a single diagram. More...

#include <qgsdiagramrenderer.h>

Public Types
enum	DiagramOrientation { Up , Down , Left , Right }
	Orientation of histogram. More...

enum	Direction { Clockwise , Counterclockwise }
	Angular directions. More...

enum	LabelPlacementMethod { Height , XHeight }

Public Member Functions
	QgsDiagramSettings ()
	Constructor for QgsDiagramSettings.

	QgsDiagramSettings (const QgsDiagramSettings &other)
	Copy constructor.

	~QgsDiagramSettings ()

QgsLineSymbol *	axisLineSymbol () const
	Returns the line symbol to use for rendering axis in diagrams.

Direction	direction () const
	Returns the chart's angular direction.

QList< QgsLayerTreeModelLegendNode * >	legendItems (QgsLayerTreeLayer *nodeLayer) const
	Returns list of legend nodes for the diagram.

QgsDiagramSettings &	operator= (const QgsDiagramSettings &other)

QgsPaintEffect *	paintEffect () const
	Returns the paint effect to use while rendering diagrams.

void	readXml (const QDomElement &elem, const QgsReadWriteContext &context=QgsReadWriteContext())
	Reads diagram settings from XML.

void	setAxisLineSymbol (QgsLineSymbol *symbol)
	Sets the line symbol to use for rendering axis in diagrams.

void	setDirection (Direction direction)
	Sets the chart's angular direction.

void	setPaintEffect (QgsPaintEffect *effect)
	Sets the paint effect to use while rendering diagrams.

void	setShowAxis (bool showAxis)
	Sets whether the diagram axis should be shown.

void	setSpacing (double spacing)
	Sets the spacing between diagram contents.

void	setSpacingMapUnitScale (const QgsMapUnitScale &scale)
	Sets the map unit scale for the content spacing.

void	setSpacingUnit (Qgis::RenderUnit unit)
	Sets the unit for the content spacing.

bool	showAxis () const
	Returns `true` if the diagram axis should be shown.

double	spacing () const
	Returns the spacing between diagram contents.

const QgsMapUnitScale &	spacingMapUnitScale () const
	Returns the map unit scale for the content spacing.

Qgis::RenderUnit	spacingUnit () const
	Returns the units for the content spacing.

void	writeXml (QDomElement &rendererElem, QDomDocument &doc, const QgsReadWriteContext &context=QgsReadWriteContext()) const
	Writes diagram settings to XML.

Public Attributes
QColor	backgroundColor

double	barWidth = 5.0

QList< QString >	categoryAttributes

QList< QColor >	categoryColors

QList< QString >	categoryLabels

DiagramOrientation	diagramOrientation = QgsDiagramSettings::Up

bool	enabled = true

QFont	font

LabelPlacementMethod	labelPlacementMethod = QgsDiagramSettings::Height

QgsMapUnitScale	lineSizeScale
	Line unit scale.

Qgis::RenderUnit	lineSizeUnit = Qgis::RenderUnit::Millimeters
	Line unit index.

double	maximumScale = 0
	The maximum map scale (i.e.

double	minimumScale = 0
	The minimum map scale (i.e.

double	minimumSize = 0.0
	Scale diagrams smaller than mMinimumSize to mMinimumSize.

double	opacity = 1.0
	Opacity, from 0 (transparent) to 1.0 (opaque)

QColor	penColor

double	penWidth = 0.0

double	rotationOffset = 270
	Rotation offset, in degrees clockwise from horizontal.

bool	scaleBasedVisibility = false

bool	scaleByArea = true

QSizeF	size

QgsMapUnitScale	sizeScale
	Diagram size unit scale.

Qgis::RenderUnit	sizeType = Qgis::RenderUnit::Millimeters
	Diagram size unit.

Detailed Description

Stores the settings for rendering a single diagram.

QgsDiagramSettings stores the settings related to rendering the individual diagrams themselves, while QgsDiagramLayerSettings stores settings which control how ALL diagrams within a layer are rendered.

Definition at line 356 of file qgsdiagramrenderer.h.

Member Enumeration Documentation

◆ DiagramOrientation

enum QgsDiagramSettings::DiagramOrientation

Orientation of histogram.

Enumerator
Up
Down
Left
Right

Definition at line 367 of file qgsdiagramrenderer.h.

◆ Direction

enum QgsDiagramSettings::Direction

Angular directions.

Since: QGIS 3.12

Enumerator
Clockwise	Clockwise orientation.
Counterclockwise	Counter-clockwise orientation.

Definition at line 379 of file qgsdiagramrenderer.h.

◆ LabelPlacementMethod

enum QgsDiagramSettings::LabelPlacementMethod

Enumerator
Height
XHeight

Definition at line 360 of file qgsdiagramrenderer.h.

Constructor & Destructor Documentation

◆ QgsDiagramSettings() [1/2]

QgsDiagramSettings::QgsDiagramSettings ( )

Constructor for QgsDiagramSettings.

Definition at line 852 of file qgsdiagramrenderer.cpp.

◆ ~QgsDiagramSettings()

QgsDiagramSettings::~QgsDiagramSettings ( )

default

◆ QgsDiagramSettings() [2/2]

QgsDiagramSettings::QgsDiagramSettings ( const QgsDiagramSettings & other )

Copy constructor.

Definition at line 859 of file qgsdiagramrenderer.cpp.

Member Function Documentation

◆ axisLineSymbol()

QgsLineSymbol * QgsDiagramSettings::axisLineSymbol ( ) const

Returns the line symbol to use for rendering axis in diagrams.

See also: setAxisLineSymbol(); showAxis()

Since: QGIS 3.12

Definition at line 820 of file qgsdiagramrenderer.cpp.

◆ direction()

QgsDiagramSettings::Direction QgsDiagramSettings::direction ( ) const

Returns the chart's angular direction.

See also: setDirection()

Since: QGIS 3.12

Definition at line 929 of file qgsdiagramrenderer.cpp.

◆ legendItems()

QList< QgsLayerTreeModelLegendNode * > QgsDiagramSettings::legendItems ( QgsLayerTreeLayer * nodeLayer ) const

Returns list of legend nodes for the diagram.

Note: caller is responsible for deletion of QgsLayerTreeModelLegendNodes

Definition at line 807 of file qgsdiagramrenderer.cpp.

◆ operator=()

QgsDiagramSettings & QgsDiagramSettings::operator= ( const QgsDiagramSettings & other )

Definition at line 894 of file qgsdiagramrenderer.cpp.

◆ paintEffect()

QgsPaintEffect * QgsDiagramSettings::paintEffect ( ) const

Returns the paint effect to use while rendering diagrams.

See also: setPaintEffect()

Since: QGIS 3.12

Definition at line 841 of file qgsdiagramrenderer.cpp.

◆ readXml()

void QgsDiagramSettings::readXml	(	const QDomElement &	elem,
		const QgsReadWriteContext &	context = `QgsReadWriteContext()`
	)

Reads diagram settings from XML.

Definition at line 177 of file qgsdiagramrenderer.cpp.

◆ setAxisLineSymbol()

void QgsDiagramSettings::setAxisLineSymbol ( QgsLineSymbol * symbol )

Sets the line symbol to use for rendering axis in diagrams.

Ownership of symbol is transferred to the settings.

See also: axisLineSymbol(); setShowAxis()

Since: QGIS 3.12

Definition at line 825 of file qgsdiagramrenderer.cpp.

◆ setDirection()

void QgsDiagramSettings::setDirection ( Direction direction )

Sets the chart's angular direction.

See also: direction()

Since: QGIS 3.12

Definition at line 934 of file qgsdiagramrenderer.cpp.

◆ setPaintEffect()

void QgsDiagramSettings::setPaintEffect ( QgsPaintEffect * effect )

Sets the paint effect to use while rendering diagrams.

Ownership of effect is transferred to the settings.

See also: paintEffect()

Since: QGIS 3.12

Definition at line 846 of file qgsdiagramrenderer.cpp.

◆ setShowAxis()

void QgsDiagramSettings::setShowAxis ( bool showAxis )

Sets whether the diagram axis should be shown.

See also: showAxis(); setAxisLineSymbol()

Since: QGIS 3.12

Definition at line 836 of file qgsdiagramrenderer.cpp.

◆ setSpacing()

void QgsDiagramSettings::setSpacing ( double spacing )

inline

Sets the spacing between diagram contents.

Spacing units are set via setSpacingUnit().

See also: spacing(); setSpacingUnit(); setSpacingMapUnitScale()

Since: QGIS 3.12

Definition at line 483 of file qgsdiagramrenderer.h.

◆ setSpacingMapUnitScale()

void QgsDiagramSettings::setSpacingMapUnitScale ( const QgsMapUnitScale & scale )

inline

Sets the map unit scale for the content spacing.

See also: spacingMapUnitScale(); setSpacing(); setSpacingUnit()

Since: QGIS 3.12

Definition at line 512 of file qgsdiagramrenderer.h.

◆ setSpacingUnit()

void QgsDiagramSettings::setSpacingUnit ( Qgis::RenderUnit unit )

inline

Sets the unit for the content spacing.

See also: spacingUnit(); setSpacing(); setSpacingMapUnitScale()

Since: QGIS 3.12

Definition at line 493 of file qgsdiagramrenderer.h.

◆ showAxis()

bool QgsDiagramSettings::showAxis ( ) const

Returns true if the diagram axis should be shown.

See also: setShowAxis(); axisLineSymbol()

Since: QGIS 3.12

Definition at line 831 of file qgsdiagramrenderer.cpp.

◆ spacing()

double QgsDiagramSettings::spacing ( ) const

inline

Returns the spacing between diagram contents.

Spacing units can be retrieved by calling spacingUnit().

See also: setSpacing(); spacingUnit(); spacingMapUnitScale()

Since: QGIS 3.12

Definition at line 470 of file qgsdiagramrenderer.h.

◆ spacingMapUnitScale()

const QgsMapUnitScale & QgsDiagramSettings::spacingMapUnitScale ( ) const

inline

Returns the map unit scale for the content spacing.

See also: setSpacingMapUnitScale(); spacing(); spacingUnit()

Since: QGIS 3.12

Definition at line 522 of file qgsdiagramrenderer.h.

◆ spacingUnit()

Qgis::RenderUnit QgsDiagramSettings::spacingUnit ( ) const

inline

Returns the units for the content spacing.

See also: setSpacingUnit(); spacing(); spacingMapUnitScale()

Since: QGIS 3.12

Definition at line 502 of file qgsdiagramrenderer.h.

◆ writeXml()

void QgsDiagramSettings::writeXml	(	QDomElement &	rendererElem,
		QDomDocument &	doc,
		const QgsReadWriteContext &	context = `QgsReadWriteContext()`
	)		const

Writes diagram settings to XML.

Definition at line 346 of file qgsdiagramrenderer.cpp.

Member Data Documentation

◆ backgroundColor

QColor QgsDiagramSettings::backgroundColor

Definition at line 421 of file qgsdiagramrenderer.h.

◆ barWidth

double QgsDiagramSettings::barWidth = 5.0

Definition at line 426 of file qgsdiagramrenderer.h.

◆ categoryAttributes

QList< QString > QgsDiagramSettings::categoryAttributes

Definition at line 397 of file qgsdiagramrenderer.h.

◆ categoryColors

QList< QColor > QgsDiagramSettings::categoryColors

Definition at line 396 of file qgsdiagramrenderer.h.

◆ categoryLabels

QList< QString > QgsDiagramSettings::categoryLabels

Definition at line 398 of file qgsdiagramrenderer.h.

◆ diagramOrientation

DiagramOrientation QgsDiagramSettings::diagramOrientation = QgsDiagramSettings::Up

Definition at line 425 of file qgsdiagramrenderer.h.

◆ enabled

bool QgsDiagramSettings::enabled = true

Definition at line 394 of file qgsdiagramrenderer.h.

◆ font

QFont QgsDiagramSettings::font

Definition at line 395 of file qgsdiagramrenderer.h.

◆ labelPlacementMethod

LabelPlacementMethod QgsDiagramSettings::labelPlacementMethod = QgsDiagramSettings::Height

Definition at line 424 of file qgsdiagramrenderer.h.

◆ lineSizeScale

QgsMapUnitScale QgsDiagramSettings::lineSizeScale

Line unit scale.

Definition at line 419 of file qgsdiagramrenderer.h.

◆ lineSizeUnit

Qgis::RenderUnit QgsDiagramSettings::lineSizeUnit = Qgis::RenderUnit::Millimeters

Line unit index.

Definition at line 414 of file qgsdiagramrenderer.h.

◆ maximumScale

double QgsDiagramSettings::maximumScale = 0

The maximum map scale (i.e.

most "zoomed in" scale) at which the diagrams will be visible. The scale value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map. A scale of 0 indicates no maximum scale visibility.

See also: minimumScale

Definition at line 446 of file qgsdiagramrenderer.h.

◆ minimumScale

double QgsDiagramSettings::minimumScale = 0

The minimum map scale (i.e.

most "zoomed out" scale) at which the diagrams will be visible. The scale value indicates the scale denominator, e.g. 1000.0 for a 1:1000 map. A scale of 0 indicates no minimum scale visibility.

See also: maximumScale

Definition at line 454 of file qgsdiagramrenderer.h.

◆ minimumSize

double QgsDiagramSettings::minimumSize = 0.0

Scale diagrams smaller than mMinimumSize to mMinimumSize.

Definition at line 457 of file qgsdiagramrenderer.h.

◆ opacity

double QgsDiagramSettings::opacity = 1.0

Opacity, from 0 (transparent) to 1.0 (opaque)

Definition at line 429 of file qgsdiagramrenderer.h.

◆ penColor

QColor QgsDiagramSettings::penColor

Definition at line 422 of file qgsdiagramrenderer.h.

◆ penWidth

double QgsDiagramSettings::penWidth = 0.0

Definition at line 423 of file qgsdiagramrenderer.h.

◆ rotationOffset

double QgsDiagramSettings::rotationOffset = 270

Rotation offset, in degrees clockwise from horizontal.

Definition at line 436 of file qgsdiagramrenderer.h.

◆ scaleBasedVisibility

bool QgsDiagramSettings::scaleBasedVisibility = false

Definition at line 438 of file qgsdiagramrenderer.h.

◆ scaleByArea

bool QgsDiagramSettings::scaleByArea = true

Definition at line 431 of file qgsdiagramrenderer.h.

◆ size

QSizeF QgsDiagramSettings::size

Definition at line 399 of file qgsdiagramrenderer.h.

◆ sizeScale

QgsMapUnitScale QgsDiagramSettings::sizeScale

Diagram size unit scale.

Definition at line 409 of file qgsdiagramrenderer.h.

◆ sizeType

Qgis::RenderUnit QgsDiagramSettings::sizeType = Qgis::RenderUnit::Millimeters

Diagram size unit.

Definition at line 404 of file qgsdiagramrenderer.h.

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

/home/fischer/src/qgis-3.38/src/core/qgsdiagramrenderer.h
/home/fischer/src/qgis-3.38/src/core/qgsdiagramrenderer.cpp

Public Types

Public Member Functions

Public Attributes

Detailed Description

Member Enumeration Documentation

◆ DiagramOrientation

◆ Direction

◆ LabelPlacementMethod

Constructor & Destructor Documentation

◆ QgsDiagramSettings() [1/2]

◆ ~QgsDiagramSettings()

◆ QgsDiagramSettings() [2/2]

Member Function Documentation

◆ axisLineSymbol()

◆ direction()

◆ legendItems()

◆ operator=()

◆ paintEffect()

◆ readXml()

◆ setAxisLineSymbol()

◆ setDirection()

◆ setPaintEffect()

◆ setShowAxis()

◆ setSpacing()

◆ setSpacingMapUnitScale()

◆ setSpacingUnit()

◆ showAxis()

◆ spacing()

◆ spacingMapUnitScale()

◆ spacingUnit()

◆ writeXml()

Member Data Documentation

◆ backgroundColor

◆ barWidth

◆ categoryAttributes

◆ categoryColors

◆ categoryLabels

◆ diagramOrientation

◆ enabled

◆ font

◆ labelPlacementMethod

◆ lineSizeScale

◆ lineSizeUnit

◆ maximumScale

◆ minimumScale

◆ minimumSize

◆ opacity

◆ penColor

◆ penWidth

◆ rotationOffset

◆ scaleBasedVisibility

◆ scaleByArea

◆ size

◆ sizeScale

◆ sizeType