QGIS API Documentation
3.14.0-Pi (9f7028fd23)
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#include <qgspiediagram.h>
Public Member Functions | |
QgsPieDiagram () | |
QgsPieDiagram * | clone () 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... | |
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virtual | ~QgsDiagram () |
void | clearCache () |
QgsExpression * | getExpression (const QString &expression, const QgsExpressionContext &context) |
Returns a prepared expression for the specified context. More... | |
Additional Inherited Members | |
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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... | |
double | sizePainterUnits (double l, const QgsDiagramSettings &s, const QgsRenderContext &c) |
Calculates a length to match the current settings and rendering context. More... | |
QSizeF | sizePainterUnits (QSizeF size, const QgsDiagramSettings &s, const QgsRenderContext &c) |
Calculates a size to match the current settings and rendering context. More... | |
Definition at line 37 of file qgspiediagram.h.
QgsPieDiagram::QgsPieDiagram | ( | ) |
Definition at line 23 of file qgspiediagram.cpp.
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overridevirtual |
Returns an instance that is equivalent to this one.
Implements QgsDiagram.
Definition at line 29 of file qgspiediagram.cpp.
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overridevirtual |
Gets a descriptive name for this diagram type.
Implements QgsDiagram.
Definition at line 70 of file qgspiediagram.cpp.
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overridevirtual |
Returns the size in map units the diagram will use to render.
Implements QgsDiagram.
Definition at line 75 of file qgspiediagram.cpp.
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overridevirtual |
Returns the size in map units the diagram will use to render. Interpolate size.
Implements QgsDiagram.
Definition at line 34 of file qgspiediagram.cpp.
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overridevirtual |
Returns the size of the legend item for the diagram corresponding to a specified value.
value | value to return legend item size for |
s | diagram settings |
is | interpolation settings |
Implements QgsDiagram.
Definition at line 64 of file qgspiediagram.cpp.
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overridevirtual |
Draws the diagram at the given position (in pixel coordinates)
Implements QgsDiagram.
Definition at line 82 of file qgspiediagram.cpp.