A renderer that automatically displaces points with the same position. More...

#include <qgspointdisplacementrenderer.h>

Inheritance diagram for QgsPointDisplacementRenderer:

Public Member Functions
	QgsPointDisplacementRenderer (const QString &labelAttributeName="")
	~QgsPointDisplacementRenderer ()
virtual int	capabilities () override
	Proxy that will call this method on the embedded renderer.
QgsMarkerSymbolV2 *	centerSymbol ()
	Returns the symbol for the center of a displacement group (but not ownership of the symbol)
QColor	circleColor () const
double	circleRadiusAddition () const
double	circleWidth () const
QgsFeatureRendererV2 *	clone () const override
QgsFeatureRendererV2 *	embeddedRenderer () const
QString	labelAttributeName () const
QColor	labelColor () const
QFont	labelFont () const
QgsLegendSymbolList	legendSymbolItems (double scaleDenominator=-1, QString rule="") override
QgsLegendSymbologyList	legendSymbologyItems (QSize iconSize) override
	return a list of symbology items for the legend
double	maxLabelScaleDenominator () const
virtual QgsSymbolV2 *	originalSymbolForFeature (QgsFeature &feat) override
	Proxy that will call this method on the embedded renderer.
virtual QgsSymbolV2List	originalSymbolsForFeature (QgsFeature &feat) override
	Proxy that will call this method on the embedded renderer.
bool	renderFeature (QgsFeature &feature, QgsRenderContext &context, int layer=-1, bool selected=false, bool drawVertexMarker=false) override
	Reimplemented from QgsFeatureRendererV2.
QDomElement	save (QDomDocument &doc) override
	store renderer info to XML element
void	setCenterSymbol (QgsMarkerSymbolV2 *symbol)
	Sets the center symbol (takes ownership)
void	setCircleColor (const QColor &c)
void	setCircleRadiusAddition (double d)
void	setCircleWidth (double w)
Q_DECL_DEPRECATED void	setDisplacementGroups (const QList< QMap< QgsFeatureId, QgsFeature > > &list)
	not available in python bindings
void	setEmbeddedRenderer (QgsFeatureRendererV2 *r)
	Sets embedded renderer (takes ownership)
void	setLabelAttributeName (const QString &name)
void	setLabelColor (const QColor &c)
void	setLabelFont (const QFont &f)
void	setMaxLabelScaleDenominator (double d)
void	setTolerance (double t)
void	startRender (QgsRenderContext &context, const QgsFields &fields) override
void	stopRender (QgsRenderContext &context) override
virtual QgsSymbolV2 *	symbolForFeature (QgsFeature &feature) override
	Proxy that will call this method on the embedded renderer.
virtual QgsSymbolV2List	symbols () override
	Proxy that will call this method on the embedded renderer.
virtual QgsSymbolV2List	symbolsForFeature (QgsFeature &feat) override
	Proxy that will call this method on the embedded renderer.
double	tolerance () const
virtual void	toSld (QDomDocument &doc, QDomElement &element) const override
	used from subclasses to create SLD Rule elements following SLD v1.1 specs
virtual QList< QString >	usedAttributes () override
	Partial proxy that will call this method on the embedded renderer.
virtual bool	willRenderFeature (QgsFeature &feat) override
	Proxy that will call this method on the embedded renderer.
Public Member Functions inherited from QgsFeatureRendererV2
virtual	~QgsFeatureRendererV2 ()
virtual void	checkLegendSymbolItem (QString key, bool state=true)
	item in symbology was checked
virtual QString	dump () const
	for debugging
virtual QString	legendClassificationAttribute () const
	If supported by the renderer, return classification attribute for the use in legend.
virtual bool	legendSymbolItemChecked (QString key)
	items of symbology items in legend is checked
virtual bool	legendSymbolItemsCheckable () const
	items of symbology items in legend should be checkable
virtual QgsLegendSymbolListV2	legendSymbolItemsV2 () const
	Return a list of symbology items for the legend.
virtual void	modifyRequestExtent (QgsRectangle &extent, QgsRenderContext &context)
	Allows for a renderer to modify the extent of a feature request prior to rendering.
virtual QString	rotationField () const
	return rotation field name (or empty string if not set or not supported by renderer)
virtual void	setRotationField (QString fieldName)
	sets rotation field of renderer (if supported by the renderer)
void	setUsingSymbolLevels (bool usingSymbolLevels)
void	setVertexMarkerAppearance (int type, int size)
	set type and size of editing vertex markers for subsequent rendering
virtual Q_DECL_DEPRECATED void	startRender (QgsRenderContext &context, const QgsVectorLayer *vlayer)
QString	type () const
bool	usingSymbolLevels () const
virtual Q_DECL_DEPRECATED QDomElement	writeSld (QDomDocument &doc, const QgsVectorLayer &layer) const
	create the SLD UserStyle element following the SLD v1.1 specs
virtual QDomElement	writeSld (QDomDocument &doc, const QString &styleName) const
	create the SLD UserStyle element following the SLD v1.1 specs with the given name

Static Public Member Functions
static QgsPointDisplacementRenderer *	convertFromRenderer (const QgsFeatureRendererV2 *renderer)
	creates a QgsPointDisplacementRenderer from an existing renderer.
static QgsFeatureRendererV2 *	create (QDomElement &symbologyElem)
	create a renderer from XML element
Static Public Member Functions inherited from QgsFeatureRendererV2
static QgsFeatureRendererV2 *	defaultRenderer (QGis::GeometryType geomType)
	return a new renderer - used by default in vector layers
static QgsFeatureRendererV2 *	load (QDomElement &symbologyElem)
	create a renderer from XML element
static QgsFeatureRendererV2 *	loadSld (const QDomNode &node, QGis::GeometryType geomType, QString &errorMessage)
	create a new renderer according to the information contained in the UserStyle element of a SLD style document

Additional Inherited Members
Public Types inherited from QgsFeatureRendererV2
enum	Capabilities { SymbolLevels = 1, RotationField = 1 << 1, MoreSymbolsPerFeature = 1 << 2, Filter = 1 << 3, ScaleDependent = 1 << 4 }
Protected Member Functions inherited from QgsFeatureRendererV2
	QgsFeatureRendererV2 (QString type)
void	renderFeatureWithSymbol (QgsFeature &feature, QgsSymbolV2 *symbol, QgsRenderContext &context, int layer, bool selected, bool drawVertexMarker)
void	renderVertexMarker (QPointF &pt, QgsRenderContext &context)
	render editing vertex marker at specified point
void	renderVertexMarkerPolygon (QPolygonF &pts, QList< QPolygonF > *rings, QgsRenderContext &context)
	render editing vertex marker for a polygon
void	renderVertexMarkerPolyline (QPolygonF &pts, QgsRenderContext &context)
	render editing vertex marker for a polyline
void	setScaleMethodToSymbol (QgsSymbolV2 *symbol, int scaleMethod)
Static Protected Member Functions inherited from QgsFeatureRendererV2
static const unsigned char *	_getLineString (QPolygonF &pts, QgsRenderContext &context, const unsigned char *wkb)
static const unsigned char *	_getPoint (QPointF &pt, QgsRenderContext &context, const unsigned char *wkb)
static const unsigned char *	_getPolygon (QPolygonF &pts, QList< QPolygonF > &holes, QgsRenderContext &context, const unsigned char *wkb)
Protected Attributes inherited from QgsFeatureRendererV2
int	mCurrentVertexMarkerSize
	The current size of editing marker.
int	mCurrentVertexMarkerType
	The current type of editing marker.
QString	mType
bool	mUsingSymbolLevels

Detailed Description

A renderer that automatically displaces points with the same position.

Definition at line 31 of file qgspointdisplacementrenderer.h.

Constructor & Destructor Documentation

QgsPointDisplacementRenderer::QgsPointDisplacementRenderer ( const QString & labelAttributeName = "" )

Definition at line 32 of file qgspointdisplacementrenderer.cpp.

QgsPointDisplacementRenderer::~QgsPointDisplacementRenderer ( )

Definition at line 48 of file qgspointdisplacementrenderer.cpp.

Member Function Documentation

int QgsPointDisplacementRenderer::capabilities ( )

overridevirtual

Proxy that will call this method on the embedded renderer.

Reimplemented from QgsFeatureRendererV2.

Definition at line 214 of file qgspointdisplacementrenderer.cpp.

QgsMarkerSymbolV2* QgsPointDisplacementRenderer::centerSymbol ( )

inline

Returns the symbol for the center of a displacement group (but not ownership of the symbol)

Definition at line 104 of file qgspointdisplacementrenderer.h.

QColor QgsPointDisplacementRenderer::circleColor ( ) const

inline

Definition at line 92 of file qgspointdisplacementrenderer.h.

double QgsPointDisplacementRenderer::circleRadiusAddition ( ) const

inline

Definition at line 98 of file qgspointdisplacementrenderer.h.

double QgsPointDisplacementRenderer::circleWidth ( ) const

inline

Definition at line 89 of file qgspointdisplacementrenderer.h.

QgsFeatureRendererV2 * QgsPointDisplacementRenderer::clone ( ) const

overridevirtual

Implements QgsFeatureRendererV2.

Definition at line 54 of file qgspointdisplacementrenderer.cpp.

QgsPointDisplacementRenderer * QgsPointDisplacementRenderer::convertFromRenderer ( const QgsFeatureRendererV2 * renderer )

static

creates a QgsPointDisplacementRenderer from an existing renderer.

Note: added in 2.5

Returns: a new renderer if the conversion was possible, otherwise 0.

Definition at line 564 of file qgspointdisplacementrenderer.cpp.

QgsFeatureRendererV2 * QgsPointDisplacementRenderer::create ( QDomElement & symbologyElem )

static

create a renderer from XML element

Definition at line 329 of file qgspointdisplacementrenderer.cpp.

QgsFeatureRendererV2* QgsPointDisplacementRenderer::embeddedRenderer ( ) const

inline

Definition at line 79 of file qgspointdisplacementrenderer.h.

QString QgsPointDisplacementRenderer::labelAttributeName ( ) const

inline

Definition at line 75 of file qgspointdisplacementrenderer.h.

QColor QgsPointDisplacementRenderer::labelColor ( ) const

inline

Definition at line 95 of file qgspointdisplacementrenderer.h.

QFont QgsPointDisplacementRenderer::labelFont ( ) const

inline

Definition at line 86 of file qgspointdisplacementrenderer.h.

QgsLegendSymbolList QgsPointDisplacementRenderer::legendSymbolItems	(	double	scaleDenominator = `-1`,
		QString	rule = `""`
	)

overridevirtual

Note: not available in python bindings

Reimplemented from QgsFeatureRendererV2.

Definition at line 394 of file qgspointdisplacementrenderer.cpp.

QgsLegendSymbologyList QgsPointDisplacementRenderer::legendSymbologyItems ( QSize iconSize )

overridevirtual

return a list of symbology items for the legend

Reimplemented from QgsFeatureRendererV2.

Definition at line 385 of file qgspointdisplacementrenderer.cpp.

double QgsPointDisplacementRenderer::maxLabelScaleDenominator ( ) const

inline

Definition at line 101 of file qgspointdisplacementrenderer.h.

QgsSymbolV2 * QgsPointDisplacementRenderer::originalSymbolForFeature ( QgsFeature & feat )

overridevirtual

Proxy that will call this method on the embedded renderer.

Reimplemented from QgsFeatureRendererV2.

Definition at line 241 of file qgspointdisplacementrenderer.cpp.

QgsSymbolV2List QgsPointDisplacementRenderer::originalSymbolsForFeature ( QgsFeature & feat )

overridevirtual

Proxy that will call this method on the embedded renderer.

Reimplemented from QgsFeatureRendererV2.

Definition at line 257 of file qgspointdisplacementrenderer.cpp.

bool QgsPointDisplacementRenderer::renderFeature	(	QgsFeature &	feature,
		QgsRenderContext &	context,
		int	layer = `-1`,
		bool	selected = `false`,
		bool	drawVertexMarker = `false`
	)

overridevirtual

Reimplemented from QgsFeatureRendererV2.

Definition at line 78 of file qgspointdisplacementrenderer.cpp.

QDomElement QgsPointDisplacementRenderer::save ( QDomDocument & doc )

overridevirtual

store renderer info to XML element

Reimplemented from QgsFeatureRendererV2.

Definition at line 359 of file qgspointdisplacementrenderer.cpp.

void QgsPointDisplacementRenderer::setCenterSymbol ( QgsMarkerSymbolV2 * symbol )

Sets the center symbol (takes ownership)

Definition at line 435 of file qgspointdisplacementrenderer.cpp.

void QgsPointDisplacementRenderer::setCircleColor ( const QColor & c )

inline

Definition at line 91 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setCircleRadiusAddition ( double d )

inline

Definition at line 97 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setCircleWidth ( double w )

inline

Definition at line 88 of file qgspointdisplacementrenderer.h.

Q_DECL_DEPRECATED void QgsPointDisplacementRenderer::setDisplacementGroups ( const QList< QMap< QgsFeatureId, QgsFeature > > & list )

inline

not available in python bindings

Deprecated:: since 2.4

Definition at line 83 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setEmbeddedRenderer ( QgsFeatureRendererV2 * r )

Sets embedded renderer (takes ownership)

Definition at line 194 of file qgspointdisplacementrenderer.cpp.

void QgsPointDisplacementRenderer::setLabelAttributeName ( const QString & name )

inline

Definition at line 74 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setLabelColor ( const QColor & c )

inline

Definition at line 94 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setLabelFont ( const QFont & f )

inline

Definition at line 85 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setMaxLabelScaleDenominator ( double d )

inline

Definition at line 100 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setTolerance ( double t )

inline

Definition at line 108 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::startRender	(	QgsRenderContext &	context,
		const QgsFields &	fields
	)

overridevirtual

Implements QgsFeatureRendererV2.

Definition at line 274 of file qgspointdisplacementrenderer.cpp.

void QgsPointDisplacementRenderer::stopRender ( QgsRenderContext & context )

overridevirtual

Implements QgsFeatureRendererV2.

Definition at line 307 of file qgspointdisplacementrenderer.cpp.

QgsSymbolV2 * QgsPointDisplacementRenderer::symbolForFeature ( QgsFeature & feature )

overridevirtual

Proxy that will call this method on the embedded renderer.

Implements QgsFeatureRendererV2.

Definition at line 232 of file qgspointdisplacementrenderer.cpp.

QgsSymbolV2List QgsPointDisplacementRenderer::symbols ( )

overridevirtual

Proxy that will call this method on the embedded renderer.

Implements QgsFeatureRendererV2.

Definition at line 223 of file qgspointdisplacementrenderer.cpp.

QgsSymbolV2List QgsPointDisplacementRenderer::symbolsForFeature ( QgsFeature & feat )

overridevirtual

Proxy that will call this method on the embedded renderer.

Reimplemented from QgsFeatureRendererV2.

Definition at line 248 of file qgspointdisplacementrenderer.cpp.

double QgsPointDisplacementRenderer::tolerance ( ) const

inline

Definition at line 109 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::toSld	(	QDomDocument &	doc,
		QDomElement &	element
	)		const

overridevirtual

used from subclasses to create SLD Rule elements following SLD v1.1 specs

Reimplemented from QgsFeatureRendererV2.

Definition at line 72 of file qgspointdisplacementrenderer.cpp.

QList< QString > QgsPointDisplacementRenderer::usedAttributes ( )

overridevirtual

Partial proxy that will call this method on the embedded renderer.

Implements QgsFeatureRendererV2.

Definition at line 200 of file qgspointdisplacementrenderer.cpp.

bool QgsPointDisplacementRenderer::willRenderFeature ( QgsFeature & feat )

overridevirtual

Proxy that will call this method on the embedded renderer.

Reimplemented from QgsFeatureRendererV2.

Definition at line 264 of file qgspointdisplacementrenderer.cpp.

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

/tmp/buildd/qgis-2.8.2+12wheezy/src/core/symbology-ng/qgspointdisplacementrenderer.h
/tmp/buildd/qgis-2.8.2+12wheezy/src/core/symbology-ng/qgspointdisplacementrenderer.cpp

Public Member Functions

Static Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

Member Function Documentation