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

#include <qgspointdisplacementrenderer.h>

Inheritance diagram for QgsPointDisplacementRenderer:

Collaboration diagram for QgsPointDisplacementRenderer:

Public Member Functions
	QgsPointDisplacementRenderer (const QString &labelAttributeName="")

	~QgsPointDisplacementRenderer ()

QgsFeatureRendererV2 *	clone ()

virtual void	toSld (QDomDocument &doc, QDomElement &element) const
	used from subclasses to create SLD Rule elements following SLD v1.1 specs More...

bool	renderFeature (QgsFeature &feature, QgsRenderContext &context, int layer=-1, bool selected=false, bool drawVertexMarker=false)
	Reimplemented from QgsFeatureRendererV2. More...

QgsSymbolV2 *	symbolForFeature (QgsFeature &feature)
	to be overridden More...

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

void	stopRender (QgsRenderContext &context)

QList< QString >	usedAttributes ()

QgsSymbolV2List	symbols ()
	for symbol levels More...

QDomElement	save (QDomDocument &doc)
	store renderer info to XML element More...

QgsLegendSymbologyList	legendSymbologyItems (QSize iconSize)
	return a list of symbology items for the legend More...

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

void	setLabelAttributeName (const QString &name)

QString	labelAttributeName () const

void	setEmbeddedRenderer (QgsFeatureRendererV2 *r)
	Sets embedded renderer (takes ownership) More...

QgsFeatureRendererV2 *	embeddedRenderer ()

Q_DECL_DEPRECATED void	setDisplacementGroups (const QList< QMap< QgsFeatureId, QgsFeature > > &list)
	not available in python bindings More...

void	setLabelFont (const QFont &f)

QFont	labelFont () const

void	setCircleWidth (double w)

double	circleWidth () const

void	setCircleColor (const QColor &c)

QColor	circleColor () const

void	setLabelColor (const QColor &c)

QColor	labelColor () const

void	setCircleRadiusAddition (double d)

double	circleRadiusAddition () const

void	setMaxLabelScaleDenominator (double d)

double	maxLabelScaleDenominator () const

QgsMarkerSymbolV2 *	centerSymbol ()
	Returns the symbol for the center of a displacement group (but not ownership of the symbol) More...

void	setCenterSymbol (QgsMarkerSymbolV2 *symbol)
	Sets the center symbol (takes ownership) More...

void	setTolerance (double t)

double	tolerance () const

Public Member Functions inherited from QgsFeatureRendererV2
QString	type () const

virtual Q_DECL_DEPRECATED void	startRender (QgsRenderContext &context, const QgsVectorLayer *vlayer)

virtual	~QgsFeatureRendererV2 ()

virtual QString	dump () const
	for debugging More...

virtual int	capabilities ()
	returns bitwise OR-ed capabilities of the renderer More...

bool	usingSymbolLevels () const

void	setUsingSymbolLevels (bool usingSymbolLevels)

virtual QDomElement	writeSld (QDomDocument &doc, const QgsVectorLayer &layer) const
	create the SLD UserStyle element following the SLD v1.1 specs More...

void	setVertexMarkerAppearance (int type, int size)
	set type and size of editing vertex markers for subsequent rendering More...

virtual QString	rotationField () const
	return rotation field name (or empty string if not set or not supported by renderer) More...

virtual void	setRotationField (QString fieldName)
	sets rotation field of renderer (if supported by the renderer) More...

virtual bool	willRenderFeature (QgsFeature &feat)
	return whether the renderer will render a feature or not. More...

virtual QgsSymbolV2List	symbolsForFeature (QgsFeature &feat)
	return list of symbols used for rendering the feature. More...

Static Public Member Functions
static QgsFeatureRendererV2 *	create (QDomElement &symbologyElem)
	create a renderer from XML element More...

Static Public Member Functions inherited from QgsFeatureRendererV2
static QgsFeatureRendererV2 *	defaultRenderer (QGis::GeometryType geomType)
	return a new renderer - used by default in vector layers More...

static QgsFeatureRendererV2 *	load (QDomElement &symbologyElem)
	create a renderer from XML element More...

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 More...

Private Types
typedef QMap< QgsFeatureId, QgsFeature >	DisplacementGroup

Private Member Functions
QgsRectangle	searchRect (const QgsPoint &p) const
	Creates a search rectangle with mTolerance. More...

void	printInfoDisplacementGroups ()
	This is a debugging function to check the entries in the displacement groups. More...

QString	getLabel (const QgsFeature &f)
	Returns the label for a feature (using mLabelAttributeName as attribute field) More...

void	renderPoint (const QPointF &point, QgsSymbolV2RenderContext &context, const QList< QgsMarkerSymbolV2 * > &symbols, const QStringList &labels)

void	calculateSymbolAndLabelPositions (const QPointF &centerPoint, int nPosition, double radius, double symbolDiagonal, QList< QPointF > &symbolPositions, QList< QPointF > &labelShifts) const

void	drawGroup (const DisplacementGroup &group, QgsRenderContext &context)

void	drawCircle (double radiusPainterUnits, QgsSymbolV2RenderContext &context, const QPointF &centerPoint, int nSymbols)

void	drawSymbols (const QgsFeature &f, QgsRenderContext &context, const QList< QgsMarkerSymbolV2 * > &symbolList, const QList< QPointF > &symbolPositions, bool selected=false)

void	drawLabels (const QPointF &centerPoint, QgsSymbolV2RenderContext &context, const QList< QPointF > &labelShifts, const QStringList &labelList)

QgsSymbolV2 *	firstSymbolForFeature (QgsFeatureRendererV2 *r, QgsFeature &f)
	Returns first symbol for feature or 0 if none. More...

Private Attributes
QgsFeatureRendererV2 *	mRenderer
	Embedded renderer. More...

QString	mLabelAttributeName
	Attribute name for labeling. More...

int	mLabelIndex
	Label attribute index (or -1 if none). More...

QgsMarkerSymbolV2 *	mCenterSymbol
	Center symbol for a displacement group. More...

double	mTolerance
	Tolerance. More...

QFont	mLabelFont
	Font that is passed to the renderer. More...

QColor	mLabelColor

double	mCircleWidth
	Line width for the circle. More...

QColor	mCircleColor
	Color to draw the circle. More...

double	mCircleRadiusAddition
	Addition to the default circle radius. More...

bool	mDrawLabels
	Is set internally from startRender() depending on scale denominator. More...

double	mMaxLabelScaleDenominator
	Maximum scale denominator for label display. More...

QList< DisplacementGroup >	mDisplacementGroups
	Groups of features that have the same position. More...

QMap< QgsFeatureId, int >	mGroupIndex
	Mapping from feature ID to its group index. More...

QgsSpatialIndex *	mSpatialIndex
	Spatial index for fast lookup of close points. More...

QSet< QgsFeatureId >	mSelectedFeatures
	keeps trask which features are selected More...

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 More...

void	renderVertexMarkerPolyline (QPolygonF &pts, QgsRenderContext &context)
	render editing vertex marker for a polyline More...

void	renderVertexMarkerPolygon (QPolygonF &pts, QList< QPolygonF > *rings, QgsRenderContext &context)
	render editing vertex marker for a polygon More...

void	setScaleMethodToSymbol (QgsSymbolV2 *symbol, int scaleMethod)

Static Protected Member Functions inherited from QgsFeatureRendererV2
static const unsigned char *	_getPoint (QPointF &pt, QgsRenderContext &context, const unsigned char *wkb)

static const unsigned char *	_getLineString (QPolygonF &pts, 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
QString	mType

bool	mUsingSymbolLevels

int	mCurrentVertexMarkerType
	The current type of editing marker. More...

int	mCurrentVertexMarkerSize
	The current size of editing marker. More...

Detailed Description

A renderer that automatically displaces points with the same position.

Definition at line 31 of file qgspointdisplacementrenderer.h.

Member Typedef Documentation

typedef QMap<QgsFeatureId, QgsFeature> QgsPointDisplacementRenderer::DisplacementGroup

private

Definition at line 129 of file qgspointdisplacementrenderer.h.

Constructor & Destructor Documentation

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

Definition at line 31 of file qgspointdisplacementrenderer.cpp.

References QgsFeatureRendererV2::defaultRenderer(), mCenterSymbol, mDrawLabels, mRenderer, and QGis::Point.

Referenced by clone(), and create().

QgsPointDisplacementRenderer::~QgsPointDisplacementRenderer ( )

Definition at line 46 of file qgspointdisplacementrenderer.cpp.

References mCenterSymbol, and mRenderer.

Member Function Documentation

void QgsPointDisplacementRenderer::calculateSymbolAndLabelPositions	(	const QPointF &	centerPoint,
		int	nPosition,
		double	radius,
		double	symbolDiagonal,
		QList< QPointF > &	symbolPositions,
		QList< QPointF > &	labelShifts
	)		const

private

Definition at line 399 of file qgspointdisplacementrenderer.cpp.

References M_PI.

Referenced by drawGroup().

QgsMarkerSymbolV2* QgsPointDisplacementRenderer::centerSymbol ( )

inline

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

Definition at line 92 of file qgspointdisplacementrenderer.h.

QColor QgsPointDisplacementRenderer::circleColor ( ) const

inline

Definition at line 80 of file qgspointdisplacementrenderer.h.

double QgsPointDisplacementRenderer::circleRadiusAddition ( ) const

inline

Definition at line 86 of file qgspointdisplacementrenderer.h.

double QgsPointDisplacementRenderer::circleWidth ( ) const

inline

Definition at line 77 of file qgspointdisplacementrenderer.h.

QgsFeatureRendererV2 * QgsPointDisplacementRenderer::clone ( )

virtual

QgsFeatureRendererV2 * QgsPointDisplacementRenderer::create ( QDomElement & symbologyElem )

static

create a renderer from XML element

Definition at line 285 of file qgspointdisplacementrenderer.cpp.

References QgsSymbolLayerV2Utils::decodeColor(), labelFont(), QgsFeatureRendererV2::load(), QgsSymbolLayerV2Utils::loadSymbol(), QgsPointDisplacementRenderer(), setCenterSymbol(), setCircleColor(), setCircleRadiusAddition(), setCircleWidth(), setEmbeddedRenderer(), setLabelAttributeName(), setLabelColor(), setLabelFont(), setMaxLabelScaleDenominator(), and setTolerance().

Referenced by QgsRendererV2Registry::QgsRendererV2Registry().

void QgsPointDisplacementRenderer::drawCircle	(	double	radiusPainterUnits,
		QgsSymbolV2RenderContext &	context,
		const QPointF &	centerPoint,
		int	nSymbols
	)

private

Definition at line 431 of file qgspointdisplacementrenderer.cpp.

References mCircleColor, mCircleWidth, QgsSymbolV2RenderContext::outputLineWidth(), QgsRenderContext::painter(), and QgsSymbolV2RenderContext::renderContext().

Referenced by drawGroup().

void QgsPointDisplacementRenderer::drawGroup	(	const DisplacementGroup &	group,
		QgsRenderContext &	context
	)

private

void QgsPointDisplacementRenderer::drawLabels	(	const QPointF &	centerPoint,
		QgsSymbolV2RenderContext &	context,
		const QList< QPointF > &	labelShifts,
		const QStringList &	labelList
	)

private

Definition at line 459 of file qgspointdisplacementrenderer.cpp.

References mLabelColor, mLabelFont, QgsSymbolV2RenderContext::outputLineWidth(), QgsRenderContext::painter(), QgsRenderContext::rasterScaleFactor(), and QgsSymbolV2RenderContext::renderContext().

Referenced by drawGroup().

void QgsPointDisplacementRenderer::drawSymbols	(	const QgsFeature &	f,
		QgsRenderContext &	context,
		const QList< QgsMarkerSymbolV2 * > &	symbolList,
		const QList< QPointF > &	symbolPositions,
		bool	selected = `false`
	)

private

Definition at line 446 of file qgspointdisplacementrenderer.cpp.

Referenced by drawGroup().

QgsFeatureRendererV2* QgsPointDisplacementRenderer::embeddedRenderer ( )

inline

Definition at line 67 of file qgspointdisplacementrenderer.h.

QgsSymbolV2 * QgsPointDisplacementRenderer::firstSymbolForFeature	(	QgsFeatureRendererV2 *	r,
		QgsFeature &	f
	)

private

Returns first symbol for feature or 0 if none.

Definition at line 504 of file qgspointdisplacementrenderer.cpp.

References QgsFeatureRendererV2::symbolsForFeature().

Referenced by drawGroup().

QString QgsPointDisplacementRenderer::getLabel ( const QgsFeature & f )

private

Returns the label for a feature (using mLabelAttributeName as attribute field)

Definition at line 380 of file qgspointdisplacementrenderer.cpp.

References QgsFeature::attributes(), and mLabelIndex.

Referenced by drawGroup().

QString QgsPointDisplacementRenderer::labelAttributeName ( ) const

inline

Definition at line 63 of file qgspointdisplacementrenderer.h.

QColor QgsPointDisplacementRenderer::labelColor ( ) const

inline

Definition at line 83 of file qgspointdisplacementrenderer.h.

QFont QgsPointDisplacementRenderer::labelFont ( ) const

inline

Definition at line 74 of file qgspointdisplacementrenderer.h.

Referenced by create().

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

virtual

Note: not available in python bindings

Reimplemented from QgsFeatureRendererV2.

Definition at line 350 of file qgspointdisplacementrenderer.cpp.

References QgsFeatureRendererV2::legendSymbolItems(), and mRenderer.

QgsLegendSymbologyList QgsPointDisplacementRenderer::legendSymbologyItems ( QSize iconSize )

virtual

return a list of symbology items for the legend

Reimplemented from QgsFeatureRendererV2.

Definition at line 341 of file qgspointdisplacementrenderer.cpp.

References QgsFeatureRendererV2::legendSymbologyItems(), and mRenderer.

double QgsPointDisplacementRenderer::maxLabelScaleDenominator ( ) const

inline

Definition at line 89 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::printInfoDisplacementGroups ( )

private

This is a debugging function to check the entries in the displacement groups.

Definition at line 365 of file qgspointdisplacementrenderer.cpp.

References FID_TO_STRING, mDisplacementGroups, and QgsDebugMsg.

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

virtual

Reimplemented from QgsFeatureRendererV2.

Definition at line 76 of file qgspointdisplacementrenderer.cpp.

References QgsGeometry::asPoint(), QgsFeature::geometry(), QgsFeature::id(), QgsSpatialIndex::insertFeature(), QgsSpatialIndex::intersects(), mDisplacementGroups, mGroupIndex, mSelectedFeatures, mSpatialIndex, searchRect(), QGis::WKBPoint, QGis::WKBPoint25D, and QgsGeometry::wkbType().

void QgsPointDisplacementRenderer::renderPoint	(	const QPointF &	point,
		QgsSymbolV2RenderContext &	context,
		const QList< QgsMarkerSymbolV2 * > &	symbols,
		const QStringList &	labels
	)

private

QDomElement QgsPointDisplacementRenderer::save ( QDomDocument & doc )

virtual

store renderer info to XML element

Reimplemented from QgsFeatureRendererV2.

Definition at line 315 of file qgspointdisplacementrenderer.cpp.

References QgsSymbolLayerV2Utils::encodeColor(), mCenterSymbol, mCircleColor, mCircleRadiusAddition, mCircleWidth, mLabelAttributeName, mLabelColor, mLabelFont, mMaxLabelScaleDenominator, mRenderer, mTolerance, RENDERER_TAG_NAME, QgsFeatureRendererV2::save(), and QgsSymbolLayerV2Utils::saveSymbol().

QgsRectangle QgsPointDisplacementRenderer::searchRect ( const QgsPoint & p ) const

private

Creates a search rectangle with mTolerance.

Definition at line 360 of file qgspointdisplacementrenderer.cpp.

References mTolerance, QgsPoint::x(), and QgsPoint::y().

Referenced by renderFeature().

void QgsPointDisplacementRenderer::setCenterSymbol ( QgsMarkerSymbolV2 * symbol )

Sets the center symbol (takes ownership)

Definition at line 391 of file qgspointdisplacementrenderer.cpp.

References mCenterSymbol.

Referenced by clone(), and create().

void QgsPointDisplacementRenderer::setCircleColor ( const QColor & c )

inline

Definition at line 79 of file qgspointdisplacementrenderer.h.

Referenced by clone(), and create().

void QgsPointDisplacementRenderer::setCircleRadiusAddition ( double d )

inline

Definition at line 85 of file qgspointdisplacementrenderer.h.

Referenced by clone(), and create().

void QgsPointDisplacementRenderer::setCircleWidth ( double w )

inline

Definition at line 76 of file qgspointdisplacementrenderer.h.

Referenced by clone(), and create().

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 71 of file qgspointdisplacementrenderer.h.

void QgsPointDisplacementRenderer::setEmbeddedRenderer ( QgsFeatureRendererV2 * r )

Sets embedded renderer (takes ownership)

Definition at line 192 of file qgspointdisplacementrenderer.cpp.

References mRenderer.

Referenced by clone(), and create().

void QgsPointDisplacementRenderer::setLabelAttributeName ( const QString & name )

inline

Definition at line 62 of file qgspointdisplacementrenderer.h.

Referenced by create().

void QgsPointDisplacementRenderer::setLabelColor ( const QColor & c )

inline

Definition at line 82 of file qgspointdisplacementrenderer.h.

Referenced by clone(), and create().

void QgsPointDisplacementRenderer::setLabelFont ( const QFont & f )

inline

Definition at line 73 of file qgspointdisplacementrenderer.h.

Referenced by clone(), and create().

void QgsPointDisplacementRenderer::setMaxLabelScaleDenominator ( double d )

inline

Definition at line 88 of file qgspointdisplacementrenderer.h.

Referenced by clone(), and create().

void QgsPointDisplacementRenderer::setTolerance ( double t )

inline

Definition at line 96 of file qgspointdisplacementrenderer.h.

Referenced by clone(), and create().

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

virtual

Implements QgsFeatureRendererV2.

Definition at line 204 of file qgspointdisplacementrenderer.cpp.

References QgsFields::fieldNameIndex(), mCenterSymbol, mDisplacementGroups, mDrawLabels, mGroupIndex, mLabelAttributeName, mLabelIndex, mMaxLabelScaleDenominator, mRenderer, mSelectedFeatures, mSpatialIndex, QgsRenderContext::rendererScale(), QgsFeatureRendererV2::startRender(), and QgsSymbolV2::startRender().

void QgsPointDisplacementRenderer::stopRender ( QgsRenderContext & context )

virtual

Implements QgsFeatureRendererV2.

Definition at line 237 of file qgspointdisplacementrenderer.cpp.

References drawGroup(), mCenterSymbol, mDisplacementGroups, mGroupIndex, mRenderer, mSelectedFeatures, mSpatialIndex, QgsDebugMsg, QgsFeatureRendererV2::stopRender(), and QgsSymbolV2::stopRender().

QgsSymbolV2 * QgsPointDisplacementRenderer::symbolForFeature ( QgsFeature & feature )

virtual

to be overridden

Parameters

feature feature

Returns: returns pointer to symbol or 0 if symbol was not found

Implements QgsFeatureRendererV2.

Definition at line 198 of file qgspointdisplacementrenderer.cpp.

QgsSymbolV2List QgsPointDisplacementRenderer::symbols ( )

virtual

for symbol levels

Implements QgsFeatureRendererV2.

Definition at line 273 of file qgspointdisplacementrenderer.cpp.

References mRenderer, and QgsFeatureRendererV2::symbols().

double QgsPointDisplacementRenderer::tolerance ( ) const

inline

Definition at line 97 of file qgspointdisplacementrenderer.h.

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

virtual

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

Note: added in 1.9

Reimplemented from QgsFeatureRendererV2.

Definition at line 70 of file qgspointdisplacementrenderer.cpp.

References mRenderer, and QgsFeatureRendererV2::toSld().

QList< QString > QgsPointDisplacementRenderer::usedAttributes ( )

virtual

Implements QgsFeatureRendererV2.

Definition at line 259 of file qgspointdisplacementrenderer.cpp.

References mLabelAttributeName, mRenderer, and QgsFeatureRendererV2::usedAttributes().

Member Data Documentation

QgsMarkerSymbolV2* QgsPointDisplacementRenderer::mCenterSymbol

private

Center symbol for a displacement group.

Definition at line 110 of file qgspointdisplacementrenderer.h.

Referenced by clone(), drawGroup(), QgsPointDisplacementRenderer(), save(), setCenterSymbol(), startRender(), stopRender(), and ~QgsPointDisplacementRenderer().

QColor QgsPointDisplacementRenderer::mCircleColor

private

Color to draw the circle.

Definition at line 121 of file qgspointdisplacementrenderer.h.

Referenced by clone(), drawCircle(), and save().

double QgsPointDisplacementRenderer::mCircleRadiusAddition

private

Addition to the default circle radius.

Definition at line 123 of file qgspointdisplacementrenderer.h.

Referenced by clone(), drawGroup(), and save().

double QgsPointDisplacementRenderer::mCircleWidth

private

Line width for the circle.

Definition at line 119 of file qgspointdisplacementrenderer.h.

Referenced by clone(), drawCircle(), and save().

QList<DisplacementGroup> QgsPointDisplacementRenderer::mDisplacementGroups

private

Groups of features that have the same position.

Definition at line 131 of file qgspointdisplacementrenderer.h.

Referenced by printInfoDisplacementGroups(), renderFeature(), startRender(), and stopRender().

bool QgsPointDisplacementRenderer::mDrawLabels

private

Is set internally from startRender() depending on scale denominator.

Definition at line 125 of file qgspointdisplacementrenderer.h.

Referenced by drawGroup(), QgsPointDisplacementRenderer(), and startRender().

QMap<QgsFeatureId, int> QgsPointDisplacementRenderer::mGroupIndex

private

Mapping from feature ID to its group index.

Definition at line 133 of file qgspointdisplacementrenderer.h.

Referenced by renderFeature(), startRender(), and stopRender().

QString QgsPointDisplacementRenderer::mLabelAttributeName

private

Attribute name for labeling.

Empty string means no labelling will be done

Definition at line 105 of file qgspointdisplacementrenderer.h.

Referenced by clone(), save(), startRender(), and usedAttributes().

QColor QgsPointDisplacementRenderer::mLabelColor

private

Definition at line 117 of file qgspointdisplacementrenderer.h.

Referenced by clone(), drawLabels(), and save().

QFont QgsPointDisplacementRenderer::mLabelFont

private

Font that is passed to the renderer.

Definition at line 116 of file qgspointdisplacementrenderer.h.

Referenced by clone(), drawLabels(), and save().

int QgsPointDisplacementRenderer::mLabelIndex

private

Label attribute index (or -1 if none).

This index is not stored, it is requested in the startRender() method

Definition at line 107 of file qgspointdisplacementrenderer.h.

Referenced by getLabel(), and startRender().

double QgsPointDisplacementRenderer::mMaxLabelScaleDenominator

private

Maximum scale denominator for label display.

Negative number means no scale limitation

Definition at line 127 of file qgspointdisplacementrenderer.h.

Referenced by clone(), save(), and startRender().

QgsFeatureRendererV2* QgsPointDisplacementRenderer::mRenderer

private

Embedded renderer.

Like This, it is possible to use a classification together with point displacement

Definition at line 102 of file qgspointdisplacementrenderer.h.

Referenced by clone(), drawGroup(), legendSymbolItems(), legendSymbologyItems(), QgsPointDisplacementRenderer(), save(), setEmbeddedRenderer(), startRender(), stopRender(), symbols(), toSld(), usedAttributes(), and ~QgsPointDisplacementRenderer().

QSet<QgsFeatureId> QgsPointDisplacementRenderer::mSelectedFeatures

private

keeps trask which features are selected

Definition at line 137 of file qgspointdisplacementrenderer.h.

Referenced by drawGroup(), renderFeature(), startRender(), and stopRender().

QgsSpatialIndex* QgsPointDisplacementRenderer::mSpatialIndex

private

Spatial index for fast lookup of close points.

Definition at line 135 of file qgspointdisplacementrenderer.h.

Referenced by renderFeature(), startRender(), and stopRender().

double QgsPointDisplacementRenderer::mTolerance

private

Tolerance.

Points that are closer together are considered as equal

Definition at line 113 of file qgspointdisplacementrenderer.h.

Referenced by clone(), save(), and searchRect().

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

/tmp/buildd/qgis-2.4.0+unstable1/src/core/symbology-ng/qgspointdisplacementrenderer.h
/tmp/buildd/qgis-2.4.0+unstable1/src/core/symbology-ng/qgspointdisplacementrenderer.cpp

Public Member Functions

Static Public Member Functions

Private Types

Private Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

Constructor & Destructor Documentation

Member Function Documentation

Member Data Documentation