QgsDiagramSettings Class Reference

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 }
enum	StackedDiagramMode { Horizontal , Vertical }
	Orientation of the stacked diagrams. More...

Public Member Functions
	QgsDiagramSettings ()
	QgsDiagramSettings (const QgsDiagramSettings &other)
	~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.
void	setStackedDiagramSpacing (double spacing)
	Sets the spacing between subdiagrams in a stacked diagram.
void	setStackedDiagramSpacingMapUnitScale (const QgsMapUnitScale &scale)
	Sets the map unit scale for the spacing between subdiagrams in a stacked diagram.
void	setStackedDiagramSpacingUnit (Qgis::RenderUnit unit)
	Sets the unit for the spacing between subdiagrams in a stacked diagram.
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.
double	stackedDiagramSpacing () const
	Returns the spacing between subdiagrams in a stacked diagram.
const QgsMapUnitScale &	stackedDiagramSpacingMapUnitScale () const
	Returns the map unit scale for the spacing between subdiagrams in a stacked diagram.
Qgis::RenderUnit	stackedDiagramSpacingUnit () const
	Returns the units for the spacing between subdiagrams in a stacked diagram.
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.
StackedDiagramMode	stackedDiagramMode = QgsDiagramSettings::Horizontal

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 362 of file qgsdiagramrenderer.h.

Member Enumeration Documentation

DiagramOrientation

enum QgsDiagramSettings::DiagramOrientation

Orientation of histogram.

Enumerator
Up
Down
Left
Right

Definition at line 373 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 385 of file qgsdiagramrenderer.h.

LabelPlacementMethod

enum QgsDiagramSettings::LabelPlacementMethod

Enumerator
Height
XHeight

Definition at line 366 of file qgsdiagramrenderer.h.

StackedDiagramMode

enum QgsDiagramSettings::StackedDiagramMode

Orientation of the stacked diagrams.

Since

QGIS 3.40

Enumerator
Horizontal
Vertical

Definition at line 395 of file qgsdiagramrenderer.h.

Constructor & Destructor Documentation

QgsDiagramSettings() [1/2]

QgsDiagramSettings::QgsDiagramSettings

(

)

Definition at line 1213 of file qgsdiagramrenderer.cpp.

~QgsDiagramSettings()

QgsDiagramSettings::~QgsDiagramSettings ( )

default

QgsDiagramSettings() [2/2]

QgsDiagramSettings::QgsDiagramSettings

(

const QgsDiagramSettings &

other

)

Definition at line 1220 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 1181 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 1298 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 1168 of file qgsdiagramrenderer.cpp.

operator=()

QgsDiagramSettings & QgsDiagramSettings::operator=

(

const QgsDiagramSettings &

other

)

Definition at line 1259 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 1202 of file qgsdiagramrenderer.cpp.

readXml()

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

Reads diagram settings from XML.

Definition at line 179 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 1186 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 1303 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 1207 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 1197 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 497 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 526 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 507 of file qgsdiagramrenderer.h.

setStackedDiagramSpacing()

void QgsDiagramSettings::setStackedDiagramSpacing ( double  spacing )

inline

Sets the spacing between subdiagrams in a stacked diagram.

Spacing units are set via setStackedDiagramSpacingUnit().

See also

stackedDiagramSpacing()

setStackedDiagramSpacingUnit()

setStackedDiagramSpacingMapUnitScale()

Since

QGIS 3.40

Definition at line 562 of file qgsdiagramrenderer.h.

setStackedDiagramSpacingMapUnitScale()

void QgsDiagramSettings::setStackedDiagramSpacingMapUnitScale ( const QgsMapUnitScale &  scale )

inline

Sets the map unit scale for the spacing between subdiagrams in a stacked diagram.

See also

stackedDiagramSpacingMapUnitScale()

setStackedDiagramSpacing()

setStackedDiagramSpacingUnit()

Since

QGIS 3.40

Definition at line 592 of file qgsdiagramrenderer.h.

setStackedDiagramSpacingUnit()

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

inline

Sets the unit for the spacing between subdiagrams in a stacked diagram.

See also

stackedDiagramSpacingUnit()

setStackedDiagramSpacing()

setStackedDiagramSpacingMapUnitScale()

Since

QGIS 3.40

Definition at line 572 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 1192 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 484 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 536 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 516 of file qgsdiagramrenderer.h.

stackedDiagramSpacing()

double QgsDiagramSettings::stackedDiagramSpacing ( ) const

inline

Returns the spacing between subdiagrams in a stacked diagram.

Spacing units can be retrieved by calling stackedDiagramSpacingUnit().

See also

setStackedDiagramSpacing()

stackedDiagramSpacingUnit()

stackedDiagramSpacingMapUnitScale()

Since

QGIS 3.40

Definition at line 549 of file qgsdiagramrenderer.h.

stackedDiagramSpacingMapUnitScale()

const QgsMapUnitScale & QgsDiagramSettings::stackedDiagramSpacingMapUnitScale ( ) const

inline

Returns the map unit scale for the spacing between subdiagrams in a stacked diagram.

See also

setStackedDiagramSpacingMapUnitScale();

stackedDiagramSpacing()

stackedDiagramSpacingUnit()

Since

QGIS 3.40

Definition at line 602 of file qgsdiagramrenderer.h.

stackedDiagramSpacingUnit()

Qgis::RenderUnit QgsDiagramSettings::stackedDiagramSpacingUnit ( ) const

inline

Returns the units for the spacing between subdiagrams in a stacked diagram.

See also

setStackedDiagramSpacingUnit()

stackedDiagramSpacing()

stackedDiagramSpacingMapUnitScale()

Since

QGIS 3.40

Definition at line 582 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 362 of file qgsdiagramrenderer.cpp.

Member Data Documentation

backgroundColor

QColor QgsDiagramSettings::backgroundColor

Definition at line 434 of file qgsdiagramrenderer.h.

barWidth

double QgsDiagramSettings::barWidth = 5.0

Definition at line 440 of file qgsdiagramrenderer.h.

categoryAttributes

QList< QString > QgsDiagramSettings::categoryAttributes

Definition at line 410 of file qgsdiagramrenderer.h.

categoryColors

QList< QColor > QgsDiagramSettings::categoryColors

Definition at line 409 of file qgsdiagramrenderer.h.

categoryLabels

QList< QString > QgsDiagramSettings::categoryLabels

Definition at line 411 of file qgsdiagramrenderer.h.

diagramOrientation

DiagramOrientation QgsDiagramSettings::diagramOrientation = QgsDiagramSettings::Up

Definition at line 438 of file qgsdiagramrenderer.h.

enabled

bool QgsDiagramSettings::enabled = true

Definition at line 407 of file qgsdiagramrenderer.h.

font

QFont QgsDiagramSettings::font

Definition at line 408 of file qgsdiagramrenderer.h.

labelPlacementMethod

LabelPlacementMethod QgsDiagramSettings::labelPlacementMethod = QgsDiagramSettings::Height

Definition at line 437 of file qgsdiagramrenderer.h.

lineSizeScale

QgsMapUnitScale QgsDiagramSettings::lineSizeScale

Line unit scale.

Definition at line 432 of file qgsdiagramrenderer.h.

lineSizeUnit

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

Line unit index.

Definition at line 427 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 460 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 468 of file qgsdiagramrenderer.h.

minimumSize

double QgsDiagramSettings::minimumSize = 0.0

Scale diagrams smaller than mMinimumSize to mMinimumSize.

Definition at line 471 of file qgsdiagramrenderer.h.

opacity

double QgsDiagramSettings::opacity = 1.0

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

Definition at line 443 of file qgsdiagramrenderer.h.

penColor

QColor QgsDiagramSettings::penColor

Definition at line 435 of file qgsdiagramrenderer.h.

penWidth

double QgsDiagramSettings::penWidth = 0.0

Definition at line 436 of file qgsdiagramrenderer.h.

rotationOffset

double QgsDiagramSettings::rotationOffset = 270

Rotation offset, in degrees clockwise from horizontal.

Definition at line 450 of file qgsdiagramrenderer.h.

scaleBasedVisibility

bool QgsDiagramSettings::scaleBasedVisibility = false

Definition at line 452 of file qgsdiagramrenderer.h.

scaleByArea

bool QgsDiagramSettings::scaleByArea = true

Definition at line 445 of file qgsdiagramrenderer.h.

size

QSizeF QgsDiagramSettings::size

Definition at line 412 of file qgsdiagramrenderer.h.

sizeScale

QgsMapUnitScale QgsDiagramSettings::sizeScale

Diagram size unit scale.

Definition at line 422 of file qgsdiagramrenderer.h.

sizeType

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

Diagram size unit.

Definition at line 417 of file qgsdiagramrenderer.h.

stackedDiagramMode

StackedDiagramMode QgsDiagramSettings::stackedDiagramMode = QgsDiagramSettings::Horizontal

Definition at line 439 of file qgsdiagramrenderer.h.

---

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

• /build/qgis-3.41.0+git20241116+25ec5511245+99sid/src/core/qgsdiagramrenderer.h
• /build/qgis-3.41.0+git20241116+25ec5511245+99sid/src/core/qgsdiagramrenderer.cpp