QGIS API Documentation  3.11.0-Master (68611307d7)
Public Member Functions | List of all members
QgsStackedBarDiagram Class Reference

A stacked bar chart diagram. More...

#include <qgsstackedbardiagram.h>

Inheritance diagram for QgsStackedBarDiagram:
Inheritance graph
[legend]

Public Member Functions

 QgsStackedBarDiagram ()
 
QgsStackedBarDiagramclone () const override
 Returns an instance that is equivalent to this one. More...
 
QString diagramName () const override
 Gets a descriptive name for this diagram type. More...
 
QSizeF diagramSize (const QgsAttributes &attributes, const QgsRenderContext &c, const QgsDiagramSettings &s) override
 Returns the size in map units the diagram will use to render. More...
 
QSizeF diagramSize (const QgsFeature &feature, const QgsRenderContext &c, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is) override
 Returns the size in map units the diagram will use to render. Interpolate size. More...
 
double legendSize (double value, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is) const override
 Returns the size of the legend item for the diagram corresponding to a specified value. More...
 
void renderDiagram (const QgsFeature &feature, QgsRenderContext &c, const QgsDiagramSettings &s, QPointF position) override
 Draws the diagram at the given position (in pixel coordinates) More...
 
- Public Member Functions inherited from QgsDiagram
virtual ~QgsDiagram ()
 
void clearCache ()
 
QgsExpressiongetExpression (const QString &expression, const QgsExpressionContext &context)
 Returns a prepared expression for the specified context. More...
 

Additional Inherited Members

- Protected Member Functions inherited from QgsDiagram
 QgsDiagram ()=default
 Constructor for QgsDiagram. More...
 
 QgsDiagram (const QgsDiagram &other)
 
QFont scaledFont (const QgsDiagramSettings &s, const QgsRenderContext &c)
 Calculates a size to match the current settings and rendering context. More...
 
void setPenWidth (QPen &pen, const QgsDiagramSettings &s, const QgsRenderContext &c)
 Changes the pen width to match the current settings and rendering context. More...
 
QSizeF sizeForValue (double value, const QgsDiagramSettings &s, const QgsDiagramInterpolationSettings &is) const
 Returns the scaled size of a diagram for a value, respecting the specified diagram interpolation settings. More...
 
QSizeF sizePainterUnits (QSizeF size, const QgsDiagramSettings &s, const QgsRenderContext &c)
 Calculates a size to match the current settings and rendering context. More...
 
double sizePainterUnits (double l, const QgsDiagramSettings &s, const QgsRenderContext &c)
 Calculates a length to match the current settings and rendering context. More...
 

Detailed Description

A stacked bar chart diagram.

Since
QGIS 3.12

Definition at line 43 of file qgsstackedbardiagram.h.

Constructor & Destructor Documentation

◆ QgsStackedBarDiagram()

QgsStackedBarDiagram::QgsStackedBarDiagram ( )

Definition at line 23 of file qgsstackedbardiagram.cpp.

Member Function Documentation

◆ clone()

QgsStackedBarDiagram * QgsStackedBarDiagram::clone ( ) const
overridevirtual

Returns an instance that is equivalent to this one.

Since
QGIS 2.4

Implements QgsDiagram.

Definition at line 29 of file qgsstackedbardiagram.cpp.

◆ diagramName()

QString QgsStackedBarDiagram::diagramName ( ) const
overridevirtual

Gets a descriptive name for this diagram type.

Implements QgsDiagram.

Definition at line 109 of file qgsstackedbardiagram.cpp.

◆ diagramSize() [1/2]

QSizeF QgsStackedBarDiagram::diagramSize ( const QgsAttributes attributes,
const QgsRenderContext c,
const QgsDiagramSettings s 
)
overridevirtual

Returns the size in map units the diagram will use to render.

Implements QgsDiagram.

Definition at line 114 of file qgsstackedbardiagram.cpp.

◆ diagramSize() [2/2]

QSizeF QgsStackedBarDiagram::diagramSize ( const QgsFeature feature,
const QgsRenderContext c,
const QgsDiagramSettings s,
const QgsDiagramInterpolationSettings is 
)
overridevirtual

Returns the size in map units the diagram will use to render. Interpolate size.

Implements QgsDiagram.

Definition at line 34 of file qgsstackedbardiagram.cpp.

◆ legendSize()

double QgsStackedBarDiagram::legendSize ( double  value,
const QgsDiagramSettings s,
const QgsDiagramInterpolationSettings is 
) const
overridevirtual

Returns the size of the legend item for the diagram corresponding to a specified value.

Parameters
valuevalue to return legend item size for
sdiagram settings
isinterpolation settings
Since
QGIS 2.16

Implements QgsDiagram.

Definition at line 94 of file qgsstackedbardiagram.cpp.

◆ renderDiagram()

void QgsStackedBarDiagram::renderDiagram ( const QgsFeature feature,
QgsRenderContext c,
const QgsDiagramSettings s,
QPointF  position 
)
overridevirtual

Draws the diagram at the given position (in pixel coordinates)

Implements QgsDiagram.

Definition at line 153 of file qgsstackedbardiagram.cpp.


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